Мета. Визначити вміст амінокислот, біологічну та харчову цінність зерна різних сортів гороху озимого та продуктів його перероблення. Методи. Вміст амінокислот визначали методом іонообмінної рідинної хроматографії. Математичне оброблення отриманих даних проводили дисперсійним аналізом однофакторного польового досліду. Амінокислотний та інтегральний скори визначали розрахунково. Результати. Зерно гороху озимого сортів ‘НС Мороз’, ‘Баллтрап’ та ‘Ендуро’ мало високий вміст амінокислот. У складі есенційних амінокислот частка лізину та лейцину була найвищою – 1,53–1,77%, а частка метіоніну – найнижчою 0,25–0,28% залежно від сорту гороху озимого. Основною амінокислотою зерна гороху озимого є глютамінова, частка якої складала 3,25–3,30% від усіх амінокислот. Частка аспарагінової кислоти становила 2,30–2,37% залежно від сорту. У складі незамінних амінокислот частка цистину була найнижчою – 0,31–0,37% залежно від сорту. Частка есенційних амінокислот зерна гороху озимого становила 40–41% від їхньої суми. Частка триптофану порівняно із зерном знижувалась на 30–43%, ізолейцину – на 20–24%, метіоніну – на 8–29%, фенілаланіну, лізину, лейцину – на 8–12%, валіну – на 5–9%, треоніну – на 1–5%. У складі незамінних амінокислот щодо зерна найбільше знижувалась частка цистину – на 58–73%, гістидину – на 36–43%, гліцину – на 42–45%. Частка аланіну щодо зерна знижувалась на 19–25%, глютамінової кислоти – на 12–15%, тирозину – на 8–18%, аспарагінової кислоти – на 9–12%. Найменше знижувалась частка серину та аргініну – на 3–8%. Проте сума незамінних амінокислот знижувалась лише на 15–17% залежно від сортових особливостей. Встановлено, що амінокислотний скор зерна гороху озимого та продуктів його перероблення був бездефіцитним. Розрахунки показали, що 100 г зерна гороху озимого задовольняють біологічну потребу дорослої людини в ізолейцині – на 55–58%, валіні – на 51–42%, триптофані – на 41–50%, лізині – на 37–40%, треоніні – на 39–40%, лейцині – на 36–38%. Найбільшу добову потребу забезпечувало 100 г продуктів перероблення зерна аргініном і глютаміновою кислотою – на 20–26% залежно від сорту гороху озимого. Для решти незамінних амінокислот цей показник був на рівні 6–16% у борошні та 2–15% у крупі завдяки зниженню вмісту амінокислот у цих продуктах. Висновки. Було визначено частку амінокислот, біологічну та харчову цінність зерна різних сортів гороху озимого та продуктів його перероблення, таких як крупа та борошно. В амінокислотному складі частка незамінних амінокислот переважала, проте 100 г зерна та продуктів його перероблення найбільше задовольняють потребу в незамінних амінокислотах. Частка амінокислот знижувалась у продуктах перероблення зерна гороху озимого, особливо в крупі. Амінокислотний скор зерна гороху озимого сортів ‘НС Мороз’, ‘Баллтрап’ та ‘Ендуро’ і продуктів його перероблення був збалансованим.

Such varieties of winter wheat as Ovidium, Kokhana, Blago, Maria, Andromeda possess high adaptive potential, there are possible to use on irrigated and unirrigated lands. New genotypes are able to guarantee yield on level accordingly 9,0-9,5 and 5,5-6,0 t/ha. They are form the grain of strong and valuable wh eats.

Purpose. Grapevines (Vitis spp.) are affected by many viral diseases which cause serious pathological problems. GLRaV-3 is among the most widespread leafroll viruses, while Grapevine Fanleaf Virus (GFLV) is a destructive pathogen which reduces the lifespan of grapevine. Considering the impact and the spread of these diseases, our objective was to analyse the presence of these two viruses in several grapevine varieties in grapevine collection at ATTC Vlore. Data gathered from plant pathogens serve to better understand and prevent the spread of pathogens, as a mandatory rule for the quality control of certified plant material during vegetative propagation. Method. The presence of two common viruses were tested using virus specific primers; LC1/LC2 primer pair designed from the hHSP70 gene for detecting Grapevine Leafroll-associated Virus-3 (GLRaV3) and C3390/H2999 primer pair, designed from coat protein coding regions for detecting Grapevine Fanleaf Virus (GFLV), in six varieties; ‘Merlot’, ‘Kallmet’, ‘Shesh i zi’, ‘Shesh i bardhё’, ‘Debinё’, and ‘Pulёz’, provided through a randomised sampling procedure. One Step Reverse Transcription Polymerase Chain Reaction assay was used to detect the viral presence. Results showed a high (100%) prevalence of GLRaV3 virus in all of analysed samples, as the most frequent among the two pathogens. Analysis for of GFLV virus showed low infection rate, being present in only one sample. Conclusions. We herein show an efficient, fast and reproducible method for detecting grapevine viruses through one step RT-PCR. Our results suggest that sampling of the infected plant material should be avoided due to the presence of viral infections.

The short description of varieties of white cabbage, the comparative analysis of the yield of cabbage and density of the cobs.

Purpose. Grapevines (Vitis spp.) are affected by many viral diseases which cause serious pathological problems. GLRaV-3 is among the most widespread leafroll viruses, while Grapevine Fanleaf Virus (GFLV) is a destructive pathogen which reduces the lifespan of grapevine. Considering the impact and the spread of these diseases, our objective was to analyse the presence of these two viruses in several grapevine varieties in grapevine collection at ATTC Vlore. Data gathered from plant pathogens serve to better understand and prevent the spread of pathogens, as a mandatory rule for the quality control of certified plant material during vegetative propagation. Method. The presence of two common viruses were tested using virus specific primers; LC1/LC2 primer pair designed from the hHSP70 gene for detecting Grapevine Leafroll-associated Virus-3 (GLRaV3) and C3390/H2999 primer pair, designed from coat protein coding regions for detecting Grapevine Fanleaf Virus (GFLV), in six varieties; ?Merlot?, ?Kallmet?, ?Shesh i zi?, ?Shesh i bardh??, ?Debin??, and ?Pul?z?, provided through a randomised sampling procedure. One Step Reverse Transcription Polymerase Chain Reaction assay was used to detect the viral presence. Results showed a high (100%) prevalence of GLRaV3 virus in all of analysed samples, as the most frequent among the two pathogens. Analysis for of GFLV virus showed low infection rate, being present in only one sample. Conclusions. We herein show an efficient, fast and reproducible method for detecting grapevine viruses through one step RT-PCR. Our results suggest that sampling of the infected plant material should be avoided due to the presence of viral infections. | ????. ??????? ????????? (Vitis spp.) ?????????? ???????? ????????? ??????????, ?? ??????????? ???? ???????? ????????????. ?? ?????????????? ???????? ????? ??????????? ????? ????????? (GLRaV-3) ?? ????? ???????????? ????????? (GFLV), ????????????? ???????, ???? ??????? ?????????? ????? ??????????? ????. ? ?????? ?? ?????????? ? ????????? ???????????, ?? ????????????? ????????? ????????, ????? ????? ???? ?????????????? ???? ??????????? ? ?????? ????????? ? ???????? ?????? ????????? ??????? ?????????? (ATTC Vlore). ???????? ???? ??? ???????? ???????? ???????? ??? ??????????? ??????? ????????? ? ? ????????????? ??? ????????????? ?????? ??????????????? ?????????? ????????? ??? ??? ???? ????????????? ???????????. ??????. ????????? ??????? ?????????? ??????? ????????????? ??-??? ? ????????????? ?????-??????????? ?????????: ???? ????????? LC1 / LC2, ?? ?????????? ??? ???????????? ???? hHSP70 ?????? ??????????? ????? ??????????-3 (GLRaV3), ? ???? ????????? C3390 / H2999, ??? ?????????? ??????????? ?????????????? ????? ???????? ?????? ???????????? ????????? (GFLV). ?????? ????? ?????? ???????? ? ?Merlot?, ?Kallmet?, ?Shesh i zi?, ?Shesh i bardh??, ?Debin?? ? ?Pul?z? ? ??????????? ? ????????????? ????????? ?????????????? ???????. ??????????. ?????????????? ??????? ??? ??????????? ??????? ???????? GLRaV3, ???? ?????????? ? 100% ??????????????? ??????. ?????????? ?????? GFLV ???????? ??????? ?????? ???????????, ????? ??? ???? ? ?????? ??????. ????????. ???????? ?????????? ???????????? ????????????? ??-??? ?? ???????????, ???????? ? ?????????????? ?????? ????????? ??????? ??????????? ????.

Purpose. Jute mallow (Corchorus olitorius L.) is a mucilaginous vegetable and fiber crop cultivated in the tropics, where catnip (Nepeta cataria L.) and Mexican sunflower (Tithonia diversifolia L.) are common weeds. Hence, the study investigated the growth, yield, and nutrient level of jute mallow in weed-free, catnip, and Mexican sunflower environments. Methods. The study involved two screen-house experiments in a Completely Randomized Design (CRD) with six replications. The treatments were 0 (control), 2, 4, 6, 8, and 10 weed plants per pot in both experiments. These are 0, 100, 200, 300, 400, and 500 weed count per square meter equivalent, based on the surface area of the pots used. Mexican sunflower and catnip plants interacted with jute plants in the first and second experiments, respectively. Growth parameters of jute mallow were recorded weekly from 5 to 8 weeks after sowing (WAS), and harvesting was done at 8 WAS. The proximate composition of jute was evaluated using standard procedures outlined by AOAC. The data collected were subjected to analysis of variance (ANOVA), and means were separated using Duncan Multiple Range Test (DMRT) at P < 0.05. Results. Catnip and Mexican sunflower negatively impacted the morphological features of jute mallow from 100 plants per square meter upwards. Catnip and Mexican sunflower, at 300 and 100–500 plants per square meter, respectively, reduced the dry weight of jute mallow. The crude protein content of jute mallow was also lessened by Mexican sunflower at some point. Conclusions. The study recommends that the density of catnip and Mexican sunflower plants interacting with jute mallow should be maintained below 100 plants per square meter to prevent yield loss.

Purpose. Jute mallow (Corchorus olitorius L.) is a mucilaginous vegetable and fiber crop cultivated in the tropics, where catnip (Nepeta cataria L.) and Mexican sunflower (Tithonia diversifolia L.) are common weeds. Hence, the study investigated the growth, yield, and nutrient level of jute mallow in weed-free, catnip, and Mexican sunflower environments. Methods. The study involved two screen-house experiments in a Completely Randomized Design (CRD) with six replications. The treatments were 0 (control), 2, 4, 6, 8, and 10 weed plants per pot in both experiments. These are 0, 100, 200, 300, 400, and 500 weed count per square meter equivalent, based on the surface area of the pots used. Mexican sunflower and catnip plants interacted with jute plants in the first and second experiments, respectively. Growth parameters of jute mallow were recorded weekly from 5 to 8 weeks after sowing (WAS), and harvesting was done at 8 WAS. The proximate composition of jute was evaluated using standard procedures outlined by AOAC. The data collected were subjected to analysis of variance (ANOVA), and means were separated using Duncan Multiple Range Test (DMRT) at P < 0.05. Results. Catnip and Mexican sunflower negatively impacted the morphological features of jute mallow from 100 plants per square meter upwards. Catnip and Mexican sunflower, at 300 and 100–500 plants per square meter, respectively, reduced the dry weight of jute mallow. The crude protein content of jute mallow was also lessened by Mexican sunflower at some point. Conclusions. The study recommends that the density of catnip and Mexican sunflower plants interacting with jute mallow should be maintained below 100 plants per square meter to prevent yield loss.

Purpose. Jute mallow (Corchorus olitorius L.) is a mucilaginous vegetable and fiber crop cultivated in the tropics, where catnip (Nepeta cataria L.) and Mexican sunflower (Tithonia diversifolia L.) are common weeds. Hence, the study investigated the growth, yield, and nutrient level of jute mallow in weed-free, catnip, and Mexican sunflower environments.Methods. The study involved two screen-house experiments in a Completely Randomized Design (CRD) with six replications. The treatments were 0 (control), 2, 4, 6, 8, and 10 weed plants per pot in both experiments. These are 0, 100, 200, 300, 400, and 500 weed count per square meter equivalent, based on the surface area of the pots used. Mexican sunflower and catnip plants interacted with jute plants in the first and second experiments, respectively. Growth parameters of jute mallow were recorded weekly from 5 to 8 weeks after sowing (WAS), and harvesting was done at 8 WAS. The proximate composition of jute was evaluated using standard procedures outlined by AOAC. The data collected were subjected to analysis of variance (ANOVA), and means were separated using Duncan Multiple Range Test (DMRT) at P < 0.05.Results. Catnip and Mexican sunflower negatively impacted the morphological features of jute mallow from 100 plants per square meter upwards. Catnip and Mexican sunflower, at 300 and 100?500 plants per square meter, respectively, reduced the dry weight of jute mallow. The crude protein content of jute mallow was also lessened by Mexican sunflower at some point.Conclusions. The study recommends that the density of catnip and Mexican sunflower plants interacting with jute mallow should be maintained below 100 plants per square meter to prevent yield loss. | ????. ???? ???????????? (Corchorus olitorius L) ? ?? ??????? ? ??????? ????????, ??? ????????? ? ????????. ?????????? ?????????, ?? ?????????? ???? ??????, ? ?????? ????? ???????? (Nepeta cataria L.) ? ????????????? ???????? (Tithonia diversifolia?L). ? ?????? ??????????? ??????? ????, ??????????? ? ????? ?????? ??????????? ? ???????? ????? ????????????? ?? ????? ??????????? ??????? ????? ?????????? ? ?????????????? ????????? ?? ? ??????????, ???????? ??? ????????.??????. ??????????? ???????? ??? ???????????? ???????????? ?? ???????? ?????????????? ?????? ? ????? ???????????. ????? ??????? ? ????????????? ???? ?????: 0 (????????), 2, 4, 6, 8 ? 10 ???????? ?? ??????? ??? ???????????. ? ??????????? ????? ???????? ???????????? ????????, ???? ????????? ??????????? 0, 100, 200, 300, 400 ? 500 ???????? ?? 1??2. ????????? ????? ????? ????????????? ??????????? ??????? ? 5 ?? 8 ????? ????? ?????, ? ?????? ??????? ????? 8 ??????. ????? ?????? ?????? ? ???????? ????? ????????? ? ????????????? ??????????? ????????, ?????????? ?????????? ????????? ????????????????????? ???????. ???????? ?????????? ???? ????????? ?? ????????????? ??????? ????????????? ??????? (ANOVA).??????????. ?????? ????? ???????? ? ?????????????? ???????? ?? ????????? ??? 100 ?????? ?? ???????????? ???? ??????? ????????? ???????? ?? ???????????? ???????????????? ????? ?????????????. ?? ???????, ?? ??????????? 100?500 ?????? ?? ?????????? ????, ??????????? ????? ????????? ????? ???? ????? ?????????????. ?? ????????????, ????????????? ???????? ???? ????? ??????????? ????????? ?????? ?????? ???????? ? ????? ?????????????.????????. ??? ??????????? ????? ?????? ?????????????? ???????????? ??????????? ?????? ??????? ????? ??????????? ?? ?????????????? ????????? ? ??????? ????? ??????????????? ?????? ??? 100 ??./?2.

Purpose. Determine a number of morphometric and biochemical parameters of various genotypes of Bunias orientalis L. in the M. M. Gryshko National Botanical Garden of the NAS of Ukraine (NBG). Methods. Plant samples of B. orientalis (6 genotypes created in the NBG) were examined during the flowering stage. Determination of dry matter, ash, calcium was carried out according to Hrytsaienko et al. (2003), phosphorus according to Pochinok (1976), sugars, ascorbic acid and lipids were determined according to Krishchenko (1983), b-carotene according to Pleshkov (1985). The energy value of plants was determined using an IKA C-200 calorimeter. The obtained results were analysed statistically. Results. The height of plants varied from 140.9 (Genotype 1) to 157.5 (Genotype 5) cm, stem diameter from 11.67 (Genotype 1) to 16.1 (Genotype 6) mm, the number of internodes from 18.7 (Genotype 1) to 25.7 (Genotype 6), the number of leaves on a stem from 14.11 (Genotype 1) to 21.8 (Genotype 5), leaf lamina length from 14.2 (Genotype 1) to 23.45 (Genotype 6) cm, leaf lamina width from 6.34 (Genotype 1) to 14.5 (Genotype 4) cm, inflorescence length from 27.4 (Genotype 1) to 45.4 (Genotype 3) cm, inflorescence width from 2.32 (Genotype 1) to 4.92 (Genotype 3) cm, and the number of stems from 2.55 (Genotype 2) to 5.33 (Genotype 1). The study of the content of structural and functional compounds and nutrients at the flowering stage showed that the dry matter content was in the range of 13.58–16.00%, sugars 5.07–8.86%, titratable acidity 3.28–4.25%, lipids 3.33–6.61%, ascorbic acid 382.83–693.82 mg%, b-carotene 0.94–3.48 mg%, ash 6.79–9.2%, calcium 1.00–2.44%, phosphorus 1.61–2.67% and energy value 3337.0–3498.0 cal/g. Conclusions. It was revealed that samples of various genotypes of B. orientalis are a valuable source of nutrients at the flowering stage. The biochemical composition of plants depended on the genotype and stage of growth. Results of the morphometric study showed variability of investigated parameters. The obtained data can be used to predict and evaluate the results of introduction and breeding studies with B. orientalis genotypes as promising crops in Ukraine.

Purpose. Determine a number of morphometric and biochemical parameters of various genotypes of Bunias orientalis L. in the M. M. Gryshko National Botanical Garden of the NAS of Ukraine (NBG). Methods. Plant samples of B. orientalis (6 genotypes created in the NBG) were examined during the flowering stage. Determination of dry matter, ash, calcium was carried out according to Hrytsaienko et al. (2003), phosphorus according to Pochinok (1976), sugars, ascorbic acid and lipids were determined according to Krishchenko (1983), b-carotene according to Pleshkov (1985). The energy value of plants was determined using an IKA C-200 calorimeter. The obtained results were analysed statistically. Results. The height of plants varied from 140.9 (Genotype 1) to 157.5 (Genotype 5) cm, stem diameter from 11.67 (Genotype 1) to 16.1 (Genotype 6) mm, the number of internodes from 18.7 (Genotype 1) to 25.7 (Genotype 6), the number of leaves on a stem from 14.11 (Genotype 1) to 21.8 (Genotype 5), leaf lamina length from 14.2 (Genotype 1) to 23.45 (Genotype 6) cm, leaf lamina width from 6.34 (Genotype 1) to 14.5 (Genotype 4) cm, inflorescence length from 27.4 (Genotype 1) to 45.4 (Genotype 3) cm, inflorescence width from 2.32 (Genotype 1) to 4.92 (Genotype 3) cm, and the number of stems from 2.55 (Genotype 2) to 5.33 (Genotype 1). The study of the content of structural and functional compounds and nutrients at the flowering stage showed that the dry matter content was in the range of 13.58–16.00%, sugars 5.07–8.86%, titratable acidity 3.28–4.25%, lipids 3.33–6.61%, ascorbic acid 382.83–693.82 mg%, b-carotene 0.94–3.48 mg%, ash 6.79–9.2%, calcium 1.00–2.44%, phosphorus 1.61–2.67% and energy value 3337.0–3498.0 cal/g. Conclusions. It was revealed that samples of various genotypes of B. orientalis are a valuable source of nutrients at the flowering stage. The biochemical composition of plants depended on the genotype and stage of growth. Results of the morphometric study showed variability of investigated parameters. The obtained data can be used to predict and evaluate the results of introduction and breeding studies with B. orientalis genotypes as promising crops in Ukraine.

Purpose. Determine a number of morphometric and biochemical parameters of various genotypes of Bunias orientalis L. in the M. M. Gryshko National Botanical Garden of the NAS of Ukraine (NBG).Methods. Plant samples of B. orientalis (6 genotypes created in the NBG) were examined during the flowering stage. Determination of dry matter, ash, calcium was carried out according to Hrytsaienko et al. (2003), phosphorus according to Pochinok (1976), sugars, ascorbic acid and lipids were determined according to Krishchenko (1983), b-carotene according to Pleshkov (1985). The energy value of plants was determined using an IKA C-200 calorimeter. The obtained results were analysed statistically.Results. The height of plants varied from 140.9 (Genotype 1) to 157.5 (Genotype 5) cm, stem diameter from 11.67 (Genotype 1) to 16.1 (Genotype 6) mm, the number of internodes from 18.7 (Genotype 1) to 25.7 (Genotype 6), the number of leaves on a stem from 14.11 (Genotype 1) to 21.8 (Genotype 5), leaf lamina length from 14.2 (Genotype 1) to 23.45 (Genotype 6) cm, leaf lamina width from 6.34 (Genotype 1) to 14.5 (Genotype 4) cm, inflorescence length from 27.4 (Genotype 1) to 45.4 (Genotype 3) cm, inflorescence width from 2.32 (Genotype 1) to 4.92 (Genotype 3) cm, and the number of stems from 2.55 (Genotype 2) to 5.33 (Genotype 1). The study of the content of structural and functional compounds and nutrients at the flowering stage showed that the dry matter content was in the range of 13.58–16.00%, sugars 5.07–8.86%, titratable acidity 3.28–4.25%, lipids 3.33–6.61%, ascorbic acid 382.83–693.82 mg%, b-carotene 0.94–3.48 mg%, ash 6.79–9.2%, calcium 1.00–2.44%, phosphorus 1.61–2.67% and energy value 3337.0–3498.0 cal/g.Conclusions. It was revealed that samples of various genotypes of B. orientalis are a valuable source of nutrients at the flowering stage. The biochemical composition of plants depended on the genotype and stage of growth. Results of the morphometric study showed variability of investigated parameters. The obtained data can be used to predict and evaluate the results of introduction and breeding studies with B. orientalis genotypes as promising crops in Ukraine. | Мета. Визначити деякі морфометричні та біохімічні параметри генотипів Bunias orientalis L. у Національному ботанічному саду імені М. М. Гришка НАН України (НБС).Методи. Рослинну сировину B. orientalis досліджували в період квітування (6 генотипів власної селекції НБС). Визначення сухої речовини, золи, кальцію проводили згідно з Грицаєнко та ін. (2003), фосфор – згідно з Починком (1976), цукри, аскорбінову кислоту та ліпіди – згідно з Крищенком (1983), b-каротин – згідно з Плєш­ковим (1985). Енергетична цінність визначалась на кало­риметрі IKA C-200. Дані проаналізовано статистично.Результати. Висота рослин становила від 140,9 (генотип 1) до 157,5 (генотип 5) см, діаметр стебла – від 11,67 (генотип 1) до 16,1 (генотип 6) мм, кількість міжвузлів – від 18,7 (генотип 1) до 25,7 (генотип 6) шт., кількість листків на стеблі – від 14,11 (генотип 1) до 21,8 (генотип 5) шт.,  довжина листкової пластинки – від 14,2 (генотип 1) до 23,45 (генотип 6) см, ширина листкової пластинки – від 6,34 (генотип 1) до 14,5 (генотип 4) см, довжина суцвіття – від 27,4 (генотип 1) до 45,4 (генотип 3) см, ширина суцвіття – від 2,32 (генотип 1) до 4,92 (генотип 3) см та кількість стебел – від 2,55 (генотип 2) до 5,33 (генотип 1) шт. Дослідження поживних речовин у період квітування показало, що вміст сухої речовини становив 13,58–16,00%, цукрів – 5,07–8,86%, титрована кислотність – 3,28–4,25%, ліпідів – 3,33–6,61%, аскорбінової кислоти – 382,83–693,82 мг%, b-каротину – 0,94–3,48 мг%, золи – 6,79–9,2%, кальцію – 1,00–2,44%, фосфору – 1,61–2,67%, енергетична цінність – 3337,0–3498,0 кал/г.Висновки. Рослинна сировина генотипів B. orientalis – цінне джерело поживних речовин у період квітування. Біохімічний склад рослин залежить від генотипу та фази розвитку. У результаті морфометричних вимірювань показано варіабельність досліджуваних параметрів. Отримані да­ні можуть бути використані  для прогнозування та оці­нювання результатів інтродукційної і селекційної роботи з генотипами B. orientalis як перспективних культур в Україні.

Purpose. To reveal the features of agrobiological parameters formation of sweet sorghum various varieties and hybrids in the conditions of the Right-Bank Forest-Steppe of Ukraine. Methods. During 2018–2020 twenty-one varieties and hybrids of sweet sorghum of various ecological and geographical origins (Ukraine, Russia, USA, France, Germany, Hungary, Brazil) were studied in the field. Parameters like plant height and indices of their individual productivity (grain weight per panicle, 1000 grain weight, etc.), yield of dry biomass and grain, content of sugar in juice and protein in grain, as well as estimated sugar and protein yield in a crop. The counts were carried out in the phase of physiological ripeness of the culture. Results. In the group of Ukrainian varieties and hybrids, the plants were from 272 to 306 cm high, in the foreign group – from 274 to 412 cm. Varieties ‘Red Amber’, ‘Sioux’, ‘Affas CJ 899’, ‘Freed’ and ‘Early Orange’ are of high value for breeding practice, their plants were the tallest – from 388 to 412 cm. The panicle length of sweet sorghum cultivars of Ukrainian breeding ranged from 16.0 to 17.3 cm, foreign – from 11.0 to 19.4 cm. Grain weight from one panicle varied from 32.8 to 41.6 g and from 29.2 to 43.5 g, respectively. In a wide range, depending on the varietal characteristics, the indicator of the number of grains per panicle also varied from 1338 to 1708 pcs. The mass of 1000 grains of sweet sorghum ranged from 28.0 to 31.0 g in varieties and hybrids of Ukrainian breeding, in foreign ones – from 19.3 to 31.0 g. The yield of dry vegetative mass of cultivars of Ukrainian breeding was at the level of 8.24–9.11 t/ha. The highest rates were shown in hybrid ‘Mamont’ and ‘Huliver’ variety – 9.05 and 9.11 t/ha, respectively. For cultivars and hybrids of foreign breeding, this indicator varied from 7.00 to 12.17 t/ha. Significantly higher biomass in comparison with the standard variety (‘Sylosne 42’) was produced by ‘Vorai Sumac’, ‘Sorgo Cucre’, ‘Sioux’, ‘Freed’, ‘Red Amber’, ‘Mohavk’, ‘Affas CJ 899’, ‘Early Orange’ – 9.03–12.17 t/ha. The sugar content in sweet sorghum juice varied from 15.2 to 17.2%. The estimated sugar yield in Ukrainian cultivars was at the level of 0.82–0.89 t/ha, in foreign ones – from 0.72 to 1.18 t/ha. In all studied varieties it was the highest in ‘Sorgo Cucre’, ‘Sioux’, ‘Freed’, ‘Red Amber’, ‘Mohavk’, ‘Affas CJ 899’, ‘Early Orange’ – 0.94–1.18 t/ha. Conclusions. The productivity of sweet sorghum varies greatly depending on the origin of the variety and hybrid. In the conditions of the Right-Bank Forest-Steppe, in order to obtain a high sugar yield, it is advisable to grow ‘Sylosne 42’, ‘Favoryt’, ‘Troistyi’, ‘Dovista’, ‘Huliver’ varieties and ‘Ananas’, ‘Medovyi’, ‘Mamont’ hybrids. Varieties ‘Vaconia Orange’, ‘Vorai Sumac’, ‘Sorgo Cucre’ and hybrids ‘Ald Sorghum’, ‘Sioux’, ‘Freed’, ‘Red Amber’, ‘Mohavk’, ‘Affas CJ 899’, ‘Early Orange’ provide high yields of vegetative masses. Hybrids ‘Freed’, ‘Affas CJ 899’ and ‘Early Orange’ produce a large vegetative mass (11.08–12.17 t/ha), grain yield (8.00–8.15 t/ha) and a high protein content (9.8–11.3%).

Purpose. To reveal the features of agrobiological parameters formation of sweet sorghum various varieties and hybrids in the conditions of the Right-Bank Forest-Steppe of Ukraine. Methods. During 2018–2020 twenty-one varieties and hybrids of sweet sorghum of various ecological and geographical origins (Ukraine, Russia, USA, France, Germany, Hungary, Brazil) were studied in the field. Parameters like plant height and indices of their individual productivity (grain weight per panicle, 1000 grain weight, etc.), yield of dry biomass and grain, content of sugar in juice and protein in grain, as well as estimated sugar and protein yield in a crop. The counts were carried out in the phase of physiological ripeness of the culture. Results. In the group of Ukrainian varieties and hybrids, the plants were from 272 to 306 cm high, in the foreign group – from 274 to 412 cm. Varieties ‘Red Amber’, ‘Sioux’, ‘Affas CJ 899’, ‘Freed’ and ‘Early Orange’ are of high value for breeding practice, their plants were the tallest – from 388 to 412 cm. The panicle length of sweet sorghum cultivars of Ukrainian breeding ranged from 16.0 to 17.3 cm, foreign – from 11.0 to 19.4 cm. Grain weight from one panicle varied from 32.8 to 41.6 g and from 29.2 to 43.5 g, respectively. In a wide range, depending on the varietal characteristics, the indicator of the number of grains per panicle also varied from 1338 to 1708 pcs. The mass of 1000 grains of sweet sorghum ranged from 28.0 to 31.0 g in varieties and hybrids of Ukrainian breeding, in foreign ones – from 19.3 to 31.0 g. The yield of dry vegetative mass of cultivars of Ukrainian breeding was at the level of 8.24–9.11 t/ha. The highest rates were shown in hybrid ‘Mamont’ and ‘Huliver’ variety – 9.05 and 9.11 t/ha, respectively. For cultivars and hybrids of foreign breeding, this indicator varied from 7.00 to 12.17 t/ha. Significantly higher biomass in comparison with the standard variety (‘Sylosne 42’) was produced by ‘Vorai Sumac’, ‘Sorgo Cucre’, ‘Sioux’, ‘Freed’, ‘Red Amber’, ‘Mohavk’, ‘Affas CJ 899’, ‘Early Orange’ – 9.03–12.17 t/ha. The sugar content in sweet sorghum juice varied from 15.2 to 17.2%. The estimated sugar yield in Ukrainian cultivars was at the level of 0.82–0.89 t/ha, in foreign ones – from 0.72 to 1.18 t/ha. In all studied varieties it was the highest in ‘Sorgo Cucre’, ‘Sioux’, ‘Freed’, ‘Red Amber’, ‘Mohavk’, ‘Affas CJ 899’, ‘Early Orange’ – 0.94–1.18 t/ha. Conclusions. The productivity of sweet sorghum varies greatly depending on the origin of the variety and hybrid. In the conditions of the Right-Bank Forest-Steppe, in order to obtain a high sugar yield, it is advisable to grow ‘Sylosne 42’, ‘Favoryt’, ‘Troistyi’, ‘Dovista’, ‘Huliver’ varieties and ‘Ananas’, ‘Medovyi’, ‘Mamont’ hybrids. Varieties ‘Vaconia Orange’, ‘Vorai Sumac’, ‘Sorgo Cucre’ and hybrids ‘Ald Sorghum’, ‘Sioux’, ‘Freed’, ‘Red Amber’, ‘Mohavk’, ‘Affas CJ 899’, ‘Early Orange’ provide high yields of vegetative masses. Hybrids ‘Freed’, ‘Affas CJ 899’ and ‘Early Orange’ produce a large vegetative mass (11.08–12.17 t/ha), grain yield (8.00–8.15 t/ha) and a high protein content (9.8–11.3%).

Мета. Оцінити екологічну пластичність урожайності проса посівного в умовах Степу, Лісостепу та Полісся України. Методи. Математико-статистичні: визначення стабільності та пластичності за методикою Ебергарда–Рассела, кореляційний аналіз. Результати. За результатами кореляційного аналізу посівних площ проса посівного за період 2011–2020 рр. визначено, що площі під посівами проса посівного в Україні залежать від світових (r = 0,34). Визначено, що високий рівень урожайності проса посівного отримано в зоні Лісостепу, а саме в Полтавській, Хмельницькій, Черкаській, Сумській та Харківській областях (2,20–2,51 т/га). Достатньо високі показники отримано у Вінницькій, Київській (зона Лісостепу) та Кіровоградській (зона Степу) областях (1,86–2,02 т/га). Низьку врожайність за 10 років відзначено у Рівненській, Житомирській та Волинській областях, які належать до зони Полісся (1,09–1,34 т/га). Показано, що протягом 2011–2015 рр. висока варіабельність урожайності проса спостерігалася в Хмельницькій, Вінницькій та Волинській областях. Коефіцієнт варіації становив 42,0–71,3%. У 2016–2020 рр. найбільшу варіацію відзначено в Донецькій, Волинській та Одеській областях. Коефіцієнт варіації – 31,8–43,9%. Визначено, що за період 2011–2015 рр. високою пластичністю врожайності проса посівного характеризуються Вінницька, Донецька, Київська, Кіровоградська, Сумська, Харківська, Хмельницька, Черкаська та Полтавська області. У проміжок із 2016 до 2020 рр. високу пластичність ознаки врожайності відзначено у Вінницькій, Київській, Харківській, Полтавській, Черкаській, Сумській та Хмельницькій областях. Висновки. За результатами проведених досліджень установлено, що під час скорочення посівних площ під просом посівним у світі, обсяг його виробництва в Україні збільшується. Визначено, що найбільша врожайність просо посівного за досліджувані роки отримана в зоні Лісостепу. Відповідно до розрахованої пластичності врожайності проса посівного визначено, що для реалізації біологічного потенціалу сприятливі умови були в Донецькій та Кіровоградській областях зони Степу, у лісостеповій зоні – Полтавська, Київська, Харківська, Хмельницька, Черкаська та Сумська області.

BACKGROUND: Developing drought-tolerant crops critically depends on the efficient response of a genotype to the limited water availability, a trait known as phenological plasticity. Our understanding of the phenological plasticity remains limited, in particular, about its relationships with plant developmental program. Here, we examined the plastic response of spring wheat at tillering, booting, heading, and anthesis stages to constant or periodic drought stress. The response was assessed by morphological and physiological parameters including symptoms. RESULTS: The dynamics of morphological symptoms were indicators of the plasticity identification of drought. We found that spring wheat exhibits higher phenological plasticity during tillering stage followed by the heading stage, while booting and anthesis stages are the most sensitive. Also, the adaptive response is thought to be influenced with the plant height genes. Furthermore, periodic stress caused more pronounced inhibition of yield than the constant stress, with limited resistance resolution under long period. CONCLUSIONS: Our study shows the importance of considering the phenological plasticity in designing screens for drought tolerance in spring wheat and proposes tillering as the most informative stage for capturing genotypes with tolerance to limit water availability.

Purpose. To identify spring durum wheat accessions with high yield level and by yield components for their involvement in breeding programs as a source material. Methods. Field, statistical. Results. The results of the study of 65 collection samples of spring durum wheat of various ecological and geographical origin in terms of productivity in 2016–2018 are presented. The research results indicate that the samples of spring durum wheat had different yield level depending on the conditions of the year of cultivation. According to the calculations of the degree of yield stability parameters, the samples were found that ensure its level under fluctuations in weather conditions with regression coefficient close to one as follows ‘Omskiy izumrud’ (RUS), ‘Korona’, ‘Toma’, ‘Nauryz 6’ (KAZ), ‘Dura king’, ‘Candura’ (CAN), ‘Tera’, ‘Novatsiia’ (UKR), thus indicating their semi-intensive type. Collection samples of spring durum wheat that under optimal weather conditions are capable of producing significant yield increase are distinguished by wide ecological reaction. These are samples with regression coefficient more than one ‘MIP Raiduzhna’, ‘Hordeiforme 13-07’ (UKR), ‘Lan’, ‘Salaut’, ‘Ertol’ (KAZ), ‘Bezenchukskaya 205’, ‘Lilek’ (RUS). These samples can be characterized by their adaptive properties as intense ones, with a pronounced response to the environment. Over the years of the research, grain number per spike varied from 35.9 to 38.8 pcs. Year conditions in 2016 were the most favorable for plant growth and development, while index of conditions was 4.1, and the average grain number per spike was 41.4 pcs. Year conditions in 2017 and 2018 were less favorable for growth and development of durum spring wheat, and therefore there was a negative value of index of year conditions (lj = -5.1 and lj = 0.5, respectively) with less grain number per spike (32.2 and 38.2 pcs., respectively). According to the trait «1000 kernel weight», the samples were identified with regression coefficient close to one under fluctuations of weather conditions, i.e ‘Korona’, ‘Raya’ (KAZ), ‘Lilek’, ‘Bezenchukskaya 205’ (RUS), ‘MIP Raiduzhna’ (UKR). The grain weight per spike in the collection samples varied from 1.27 to 1.77 g. The stable samples ‘Ertol’, ‘Salaut’, ‘Damsinskaya yantarnaya’ (KAZ), ‘Lilek’ (RUS), ‘Novatsiia’ (UKR), ‘Duraking’, ‘Candura’ (CAN) promising in spring wheat breeding were identified and can be involved in hybridization. Conclusions. Stable and plastic samples were identified among collection material of spring durum wheat in terms of productivity for involvement in scientific programs as source material.

The article devotes to the stages of formation of plant collection of park of landscape and gardening art of local importance “arboretum State variety network” located in the village Oguyivka of Mashevka district of Poltava region.

Мета. Оцінити екологічну пластичність урожайності проса посівного в умовах Степу, Лісостепу та Полісся України. Методи. Математико-статистичні: визначення стабільності та пластичності за методикою Ебергарда–Рассела, кореляційний аналіз. Результати. За результатами кореляційного аналізу посівних площ проса посівного за період 2011–2020 рр. визначено, що площі під посівами проса посівного в Україні залежать від світових (r = 0,34). Визначено, що високий рівень урожайності проса посівного отримано в зоні Лісостепу, а саме в Полтавській, Хмельницькій, Черкаській, Сумській та Харківській областях (2,20–2,51 т/га). Достатньо високі показники отримано у Вінницькій, Київській (зона Лісостепу) та Кіровоградській (зона Степу) областях (1,86–2,02 т/га). Низьку врожайність за 10 років відзначено у Рівненській, Житомирській та Волинській областях, які належать до зони Полісся (1,09–1,34 т/га). Показано, що протягом 2011–2015 рр. висока варіабельність урожайності проса спостерігалася в Хмельницькій, Вінницькій та Волинській областях. Коефіцієнт варіації становив 42,0–71,3%. У 2016–2020 рр. найбільшу варіацію відзначено в Донецькій, Волинській та Одеській областях. Коефіцієнт варіації – 31,8–43,9%. Визначено, що за період 2011–2015 рр. високою пластичністю врожайності проса посівного характеризуються Вінницька, Донецька, Київська, Кіровоградська, Сумська, Харківська, Хмельницька, Черкаська та Полтавська області. У проміжок із 2016 до 2020 рр. високу пластичність ознаки врожайності відзначено у Вінницькій, Київській, Харківській, Полтавській, Черкаській, Сумській та Хмельницькій областях. Висновки. За результатами проведених досліджень установлено, що під час скорочення посівних площ під просом посівним у світі, обсяг його виробництва в Україні збільшується. Визначено, що найбільша врожайність просо посівного за досліджувані роки отримана в зоні Лісостепу. Відповідно до розрахованої пластичності врожайності проса посівного визначено, що для реалізації біологічного потенціалу сприятливі умови були в Донецькій та Кіровоградській областях зони Степу, у лісостеповій зоні – Полтавська, Київська, Харківська, Хмельницька, Черкаська та Сумська області.

This study aimed to evaluate the performance and stability of agronomic and grain quality traits of 11 spring barley varieties from the Latvian breeding programme grown in two locations for four years. The study was carried out on 11 Latvian spring barley varieties: nine covered varieties ‘Abava’, ‘Ansis’, ‘Austris’, ‘Didzis’, ‘Gāte’, ‘Idumeja’, ‘Jumara’, ‘Kristaps’, and ‘Saule PR’ and two hull-less varieties ‘Irbe’ and ‘Kornelija’. Plants of the varieties were grown in field trials of the Institute of Agricultural Resources and Economics, at two sites (Priekuļi and Stende) during 2014–2017. Varieties ‘Didzis’, ‘Jumara’, and ‘Ansis’ yielded significantly above the grand mean in eight environments (5.70 t•haE−1; LSD = 0.476 t•haE−1). ‘Didzis’ showed relatively high dynamic yield stability and broad adaptability to all environments (bi = 0.90; b = 1; s2d = 0.07). Grain yield for varieties ‘Jumara’ and ‘Ansis’ showed specific adaptability to unfavourable environments (bi = 0.48 and 0.55, respectively; bi is less than 1). Some covered spring barley varieties were considered to be the best in eight environments with stable and high 1000 grain weight (‘Austris’, ‘Idumeja’), test weight (‘Gāte’, ‘Jumara’, ‘Austris’), lodging resistance (‘Austris’, ‘Jumara’, ‘Didzis’), resistance to Pyrenophora teres (‘Didzis’, ‘Saule PR’) and Blumeria graminis (‘Saule PR’, ‘Didzis’). Both hull-less barley varieties ‘Irbe’ and ‘Kornelija’ were distinguished for high crude protein and ß-glucan content.

Purpose. To estimate the ecological plasticity of common millet yield under conditions of Steppe, Forest-Steppe and Forest of Ukraine. Methods. Mathematical and statistical: determination of stability and plasticity by Eberhart & Russell method, correlation analysis. Results. As a result of correlation analysis of millet cultivated areas during the period of 2011?2020, it was revealed that cultivated areas in Ukraine depend on the world ones (r = 0.34). It was determined that a high level of common millet yield was obtained in the forest-steppe zone, namely in Poltava, Khmelnytskyi, Cherkasy, Sumy and Kharkiv regions (2.20?2.51 t/ha). Quite high rates of yield were obtained in Vinnytsia, Kyiv (Forest-Steppe zone) and Kirovohrad (Steppe zone) regions (1.86?2.02 t/ha). Low yield over 10 years was noted in Rivne, Zhytomyr and Volyn regions, which belong to the Forrest zone (1.09?1.34 t/ha). It is shown that during 2011?2015 high variability of millet yield was observed in Khmelnytskyi, Vinnytsia and Volyn regions. The coefficient of variation was 42.0?71.3%. During 2016?2020 significant variation was noted in Donetsk, Volyn and Odesa regions. The coefficient of variation was 31.8?43.9%. In the period from 2016 to 2020, high plasticity of the yield trait was noted in Vinnitsa, Kyiv, Kharkiv, Poltava, Cherkasy, Sumy and Khmelnitsky regions. During 2016?2020 high plasticity trait of millet yield was in Vinnytsia, Kyiv, Sumy, Kharkiv, Khmelnytskyi, Cherkasy and Poltava regions. Conclusions. According to the results of the studies, it was found that with a reduction in the area under millet in the world, the volume of its production in Ukraine increases. It was determined that the hig?hest yield of millet was obtained in the Forest-Steppe zone during the years of observation. According to the plasticity of millet yield, it was found that favorable conditions for realization of its biological potential were in Donetsk and Kirovohrad regions of Steppe zone, in Forest-Steppe zone of Vinnytsia, Poltava, Kyiv, Kharkiv, Khmelnytskyi, Cherkasy and Sumy regions. | ????. ??????? ?????????? ???????????? ??????????? ????? ????????? ? ?????? ?????, ????????? ?? ??????? ???????. ??????. ??????????-???????????: ?????????? ???????????? ?? ???????????? ?? ????????? ?????????????????, ???????????? ??????. ??????????. ?? ???????????? ????????????? ??????? ???????? ???? ????? ????????? ?? ?????? 2011?2020 ??. ?????????, ?? ????? ??? ???????? ????? ????????? ? ??????? ???????? ??? ???????? (r = 0,34). ?????????, ?? ??????? ?????? ??????????? ????? ????????? ???????? ? ???? ?????????, ? ???? ? ???????????, ????????????, ??????????, ???????? ?? ??????????? ???????? (2,20?2,51 ?/??). ????????? ?????? ????????? ???????? ? ??????????, ????????? (???? ?????????) ?? ??????????????? (???? ?????) ???????? (1,86?2,02 ?/??). ?????? ??????????? ?? 10 ????? ?????????? ? ???????????, ???????????? ?? ?????????? ????????, ??? ???????? ?? ???? ??????? (1,09?1,34 ?/??). ????????, ?? ???????? 2011?2015 ??. ?????? ?????????????? ??????????? ????? ?????????????? ? ????????????, ?????????? ?? ?????????? ????????. ?????????? ???????? ???????? 42,0?71,3%. ? 2016?2020 ??. ????????? ???????? ?????????? ? ?????????, ?????????? ?? ???????? ????????. ?????????? ???????? ? 31,8?43,9%. ?????????, ?? ?? ?????? 2011?2015 ??. ??????? ???????????? ??????????? ????? ????????? ???????????????? ?????????, ????????, ????????, ??????????????, ???????, ??????????, ???????????, ????????? ?? ?????????? ???????. ? ???????? ?? 2016 ?? 2020 ??. ?????? ???????????? ?????? ??????????? ?????????? ? ??????????, ?????????, ???????????, ???????????, ??????????, ???????? ?? ???????????? ????????. ????????. ?? ???????????? ?????????? ?????????? ???????????, ?? ??? ??? ?????????? ???????? ???? ??? ?????? ???????? ? ?????, ????? ???? ??????????? ? ??????? ????????????. ?????????, ?? ????????? ??????????? ????? ????????? ?? ???????????? ???? ???????? ? ???? ?????????. ?????????? ?? ???????????? ???????????? ??????????? ????? ????????? ?????????, ?? ??? ?????????? ???????????? ?????????? ?????????? ????? ???? ? ????????? ?? ??????????????? ???????? ???? ?????, ? ???????????? ???? ? ??????????, ????????, ??????????, ???????????, ????????? ?? ??????? ???????.

Untangling the genetic architecture of grain yield (GY) and yield stability is an important determining factor to optimize genomics-assisted selection strategies in wheat. We conducted in-depth investigation on the above using a large set of advanced bread wheat lines (4,302), which were genotyped with genotyping-by-sequencing markers and phenotyped under contrasting (irrigated and stress) environments. Haplotypes-based genome-wide-association study (GWAS) identified 58 associations with GY and 15 with superiority index Pi (measure of stability). Sixteen associations with GY were “environment-specific” with two on chromosomes 3B and 6B with the large effects and 8 associations were consistent across environments and trials. For Pi, 8 associations were from chromosomes 4B and 7B, indicating ‘hot spot’ regions for stability. Epistatic interactions contributed to an additional 5–9% variation on average. We further explored whether integrating consistent and robust associations identified in GWAS as fixed effects in prediction models improves prediction accuracy. For GY, the model accounting for the haplotype-based GWAS loci as fixed effects led to up to 9–10% increase in prediction accuracy, whereas for Pi this approach did not provide any advantage. This is the first report of integrating genetic architecture of GY and yield stability into prediction models in wheat.

The inconsistent prevalence of abiotic stress in most of the agroecosystems can be addressed through deployment of plant material with stress adaptive plasticity. The present study explores water stress induced plasticity for early root-shoot development, proline induction and cell membrane injury in 57 accessions of Aegilops tauschii (DD-genome) and 26 accessions of Triticum dicoccoides (AABB-genome) along with durum and bread wheat cultivars. Thirty three Ae. tauschii accessions and 18 T. dicoccoides accessions showed an increase in root dry weight (ranging from 1.8 to 294.75%) under water stress. Shoot parameters- length and biomass, by and large were suppressed by water stress, but genotypes with stress adaptive plasticity leading to improvement of shoot traits (e.g., Ae tauschii accession 14191 and T. dicoccoides accession 7130) could be identified. Water stress induced active responses, rather than passive repartitioning of biomass was indicated by better shoot growth in seedlings of genotypes with enhanced root growth under stress. Membrane injury seemed to work as a trigger to activate water stress adaptive cellular machinery and was found positively correlated with several root-shoot based adaptive responses in seedlings. Stress induced proline accumulation in leaf tissue showed marked inter- and intra-specific genetic variation but hardly any association with stress adaptive plasticity. Genotypic variation for early stage plasticity traits viz., change in root dry weight, shoot length, shoot fresh weight, shoot dry weight and membrane injury positively correlated with grain weight based stress tolerance index (r = 0.267, r = 0.404, r = 0.299, r = 0.526, and r = 0.359, respectively). In another such trend, adaptive seedling plasticity correlated positively with resistance to early flowering under stress (r = 0.372 with membrane injury, r = 0.286 with change in root length, r = 0.352 with change in shoot length, r = 0.268 with change in shoot dry weight). Overall, Ae. tauschii accessions 9816, 14109, 14128, and T. dicoccoides accessions 5259 and 7130 were identified as potential donors of stress adaptive plasticity. The prospect of the study for molecular marker tagging, cloning of plasticity genes and creation of elite synthetic hexaploid donors is discussed.

Мета. Використовуючи статистичні методи, проаналізувати за показниками екологічної пластичності та стабільності лінії конкурсного випробування пшениці м’якої ярої і виявити серед них такі, що вирізняються високою стабільністю врожайності зерна. Методи. Дослідження проводили протягом 2018–2020 рр. на базі Миронівського інституту пшениці імені В. М. Ремесла НААН. У процесі оброблення отриманих результатів послуговувалися загально­прийнятими методами генетико-статистичного аналізу. Результати. Оцінка селекційного матеріалу в різні роки дає змогу отримати інформацію щодо особливостей реакції генотипів на зміну екологічних умов. У результаті проведених досліджень встановлено, що високопластичними є лінії Lutescens 14-32 (bi = 0,59), Erythrospermum 15-32  (bi = 0,44) і Lutescens 14-47 (bi = 0,22). За розрахунками, екологічно стабільними вважають лінії, варіанса стабільності яких дорівнює нулю (S2di = 0,00) або близька до нуля (S2di = 0,01). З погляду практичності цінними є лінії із сукупним проявом високої екологічної пластичності та стабільності, а саме: Erythrospermum 15-32 (bi = 0,44; S2di = 0,01), що має низьку норму реакції та може забезпечувати незмінно високий рівень врожайності за будь-яких умов вирощування. Найціннішими є генотипи, що поєднують у собі низький рівень коефіцієнта варіації (CV ≤ 10,0%), високу гомеостатичність і селекційну цінність. Серед них – лінії Erythrospermum 15-32 (Hom = 206,42, Sc = 4,11), Lutescens 14-47 (Hom = 98,41, Sc = 3,91), Erythrospermum 17-08 (Hom = 78,57, Sc = 3,76), Erythrospermum 14-65 (Hom = 54,84, Sc = 3,75), Lutescens 14-32 (Hom = 54,60, Sc = 4,17), Lutescens 14-13 (Hom = 35,60, Sc = 3,78) і Lutescens 14-48 (Hom = 46,66, Sc = 3,58). Висновки. Оцінка селекційного матеріалу має важливе значення для створення нових високопродуктивних сортів з адаптивним потенціалом. Метод оцінки екологічної пластичності та варіанси її стабільності дав змогу диференціювати лінії пшениці м’якої ярої конкурсного випробування за реакцією на зміну умов вирощування. Для оптимальнішого відбору селекційного матеріалу за показниками екологічної пластичності та стабільності у селекційних програмах слід враховувати ранжовані оцінки генотипів.

Мета. Порівняльна оцінка за врожайністю та адаптивністю сортів ячменю ярого Миронівського інституту пшениці імені В. М. Ремесла НААН різних років реєстрації. Методи. Дослідження проведені в Миронівському інституті пшениці імені В. М. Ремесла НААН у 2013–2017 рр. відповідно до загальноприйнятих методик. Об’єкт досліджень – 19 сортів ячменю ярого миронівської селекції зареєстрованих в Україні за період 1995–2017 рр. Для характеристики взаємодії генотип–середовище та диференціації сортів за врожайністю і стабільністю використали низку найбільш поширених підходів: S. A. Eberhart, W. A. Russel (1966); G. Wricke (1962); C. S. Lin, M. R. Binns (1988); M. Huehn (1990); А. В. Кильчевский, Л. В. Хотылёва (1985); В. В. Хангильдин, Н. А. Литвиненко (1981); J. L. Purchase та ін. (2000); AMMI; GGE biplot. Результати. Частка умов року досліджень у загальній варіації становила 83,40%. Достовірні, але суттєво нижчі значення мали генотип – 10,65% та взаємодія генотип–середовище – 5,95%. Перші дві головні компоненти GGE biplot пояснювали дещо більшу частку взаємодії генотип–середовище (85,58%) порівняно з AMMI моделлю (80,9%). Кореляційний аналіз виявив, що середня врожайність (Mean) мала вищесередній зв’язок як з максимальним (Max) (r = 0,69), так і мінімальним (Mіn) (r = 0,72) її значеннями. Сильну позитивну кореляцію Mean виявлено з парамет­рами: СЦГі (r = 0,88), Hom (r = 0,86), Sc (r = 0,82). Дуже сильний негативний зв’язок Mean відзначено з Pi (r = -0,96). Для Max середній негативний зв’язок спостерігали лише з Pi (r = -0,60). Mіn сильно корелювала з Sc (r = 0,96), СЦГі (r = 0,87), Hom (r = 0,84). Негативну сильну кореляцію відзначено Min з Sgi (r = -0,86). Між деякими показниками виявлено зв’язок від функціонального позитивного: δ2CAЗi і Кgi (r = 1,00), Wi і Lgi (r = 0,98), СЦГі і Hom (r = 0,98), СЦГі і Sc (r = 0,96), S2di і Wi (r = 0,96), Wi і ASV (r = 0,94), Sc і Hom (r = 0,94), δ2CAЗi і bi (r = 0,93), S2di і ASV (r = 0,93) до сильного негативного: Sgi іСЦГі (r = -0,94), Sgi і Sc(r = -0,92), Sgi і Hom (r = -0,91), Pi і СЦГі (r = -0,83), Pi і Sc (r = -0,80), Pi і Hom (r = -0,79). Висновки. Системна порівняльна оцінка статистичними і графічними підходами свідчить, що внесені до Державного реєстру сортів рослин, придатних для поширення в Україні у 2016–2017 рр. сорти ячменю ярого ‘Віраж’, ‘Талісман Миронівський’, ‘МІП Мирний’, ‘МІП Салют’, ‘МІП Сотник’, ‘МІП Азарт’, ‘МІП Богун’ переважають створені на попередніх етапах селекційної роботи сорти як за продуктивним, так і адаптивним потенціалом.

The article gives analysis of practical value of soybean varieties according to productivity and ecological plasticity in different climatic provinces of Ukraine. Ecological estimation of soybean varieties by the methodology of Eberhart and Rassel has been made. This estimation helped to determine variety plasticity and potential to adaptability. It has been established that varieties Almaz and Diona were the best according to the results of ecological research of varieties. The most favourable regions for cultivation of up-to-date soybean varieties have been chosen. Variety Almaz has been defined as the most intensive and plastic soybean variety (average yield during research years was 2.66–2.93 t/hа). Varieties Antratsit and Ametist also have shown high plasticity. The article gives rank estimation of practical value of soybean varieties on the basis of grain productivity.It has been established that all examined varieties had high economic value – coefficient of agronomic stability is higher than 70%.Variety Almaz has the greatest selective value according to homeostatic character. Almaz is the most intensive variety with maximal plasticity grown in Poltava region.Varieties with high indices of adaptability and plasticity which are very valuable for selection and practical use have been singled out.

This study aimed to evaluate the performance and stability of agronomic and grain quality traits of 11 spring barley varieties from the Latvian breeding programme grown in two locations for four years. The study was carried out on 11 Latvian spring barley varieties: nine covered varieties ‘Abava’, ‘Ansis’, ‘Austris’, ‘Didzis’, ‘Gāte’, ‘Idumeja’, ‘Jumara’, ‘Kristaps’, and ‘Saule PR’ and two hull-less varieties ‘Irbe’ and ‘Kornelija’. Plants of the varieties were grown in field trials of the Institute of Agricultural Resources and Economics, at two sites (Priekuïi and Stende) during 2014–2017. Varieties ‘Didzis’, ‘Jumara’, and ‘Ansis’ yielded significantly above the grand mean in eight environments (5.70 t·ha⁻¹; LSD = 0.476 t·ha⁻¹). ‘Didzis’ showed relatively high dynamic yield stability and broad adaptability to all environments (bᵢ = 0.90; b = 1; s²d = 0.07). Grain yield for varieties ‘Jumara’ and ‘Ansis’ showed specific adaptability to unfavourable environments (bᵢ = 0.48 and 0.55, respectively; bᵢ < 1). Some covered spring barley varieties were considered to be the best in eight environments with stable and high 1000 grain weight (‘Austris’, ‘Idumeja’), test weight (‘Gāte’, ‘Jumara’, ‘Austris’), lodging resistance (‘Austris’, ‘Jumara’, ‘Didzis’), resistance to Pyrenophora teres (‘Didzis’, ‘Saule PR’) and Blumeria graminis (‘Saule PR’, ‘Didzis’). Both hull-less barley varieties ‘Irbe’ and ‘Kornelija’ were distinguished for high crude protein and ß-glucan content.

The model, Yᵢⱼ = μ₁ + β₁Iⱼ + δᵢⱼ, defines stability parameters that may be used to describe the performance of a variety over a series of environments. Yᵢⱼ is the variety mean of the iᵗʰ variety at the jₜₕ environment, µ₁ is the iᵗʰ variety mean over all environments, β₁ is the regression coefficient that measures the response of the iᵗʰ variety to varying environments, δᵢⱼ is the deviation from regression of the iᵗʰ variety at the jᵗʰ environment, and Iⱼ is the environmental index. The data from two single-cross diallels and a set of 3-way crosses were examined to see whether genetic differences could be detected. Genetic differences among lines were indicated for the regression of the lines on the environmental index with no evidence of nonadditive gene action. The estimates of the squared deviations from regression for many hybrids were near zero, whereas extremely large estimates were obtained for other hybrids.

Purpose. To analyze lines of competitive testing of soft spring wheat in terms of ecological plasticity and stability using statistical methods of analysis and identify lines with high stability of grain yield.Methods. The studies were carried out during 2018–2020, on the basis of the V. M. Remeslo Myronivka Institute of Wheat NAAS of Ukraine. When considering the results obtained, generally accepted methods of genetic and statistical analysis were used.Results. Evaluation of breeding material in different years makes it possible to obtain information about the characteristics of the reaction of genotypes to changes in environmental conditions. As a result of the studies, it was found that the lines Lutescens 14-32 (bi = 0.59), Erythrospermum 15-32 (bi = 0.44), Lutescens 14-47 (bi = 0.22) were of high plasticity. Calculations of ecological stability indicate that lines are considered stable, the variance of stability is zero or close to zero. From a practical point of view, lines with a combined manifestation of high ecological plasticity and stability are considered valuable. This was the line Erythro­spermum 15-32 (bi = 0.44; S2di = 0.01) that indicates its low reaction rate and the ability to provide a consistently high level of yield under any growing conditions. The most valuable are the genotypes that combine a low level of the coefficient of variation, high homeostaticity and bree­ding value, which include the lines Erythrospermum 15-32 (Hom = 206.42, Sc = 4.11), Lutescens 14-47 (Hom = 98.41, Sc = 3.91), Erythrospermum 17-08 (Hom = 78.57, Sc = 3.76), Erythrospermum 14-65 (Hom = 54.84, Sc = 3.75), Lutescens 14-32 (Hom = 54.60, Sc = 4.17), Lutescens 14-13 (Hom = 35.60, Sc = 3.78), Lutescens 14-48 (Hom = 46.66, Sc = 3.58).Conclusions. The evaluation of breeding material is of great importance when creating new high-performance varieties with adaptive potential. The method for assessing ecological plasticity and variants of its stability made it possible to differentiate wheat lines of soft spring competitive testing by their response to changes in gro­wing conditions. For a more optimal selection of breeding material in terms of ecological plasticity and stability, breeding programs should take into account ranked estimates of genotypes. | Мета. Використовуючи статистичні методи, проаналізувати за показниками екологічної пластичності та стабільності лінії конкурсного випробування пшениці м’якої ярої і виявити серед них такі, що вирізняються високою стабільністю врожайності зерна.Методи. Дослідження проводили протягом 2018–2020 рр. на базі Миронівського інституту пшениці імені В. М. Ремесла НААН. У процесі оброблення отриманих результатів послуговувалися загально­прийнятими методами генетико-статистичного аналізу.Результати. Оцінка селекційного матеріалу в різні роки дає змогу отримати інформацію щодо особливостей реакції генотипів на зміну екологічних умов. У результаті проведених досліджень встановлено, що високопластичними є лінії Lutescens 14-32 (bi = 0,59), Erythrospermum 15-32  (bi = 0,44) і Lutescens 14-47 (bi = 0,22). За розрахунками, екологічно стабільними вважають лінії, варіанса стабільності яких дорівнює нулю (S2di = 0,00) або близька до нуля (S2di = 0,01). З погляду практичності цінними є лінії із сукупним проявом високої екологічної пластичності та стабільності, а саме: Erythrospermum 15-32 (bi = 0,44; S2di = 0,01), що має низьку норму реакції та може забезпечувати незмінно високий рівень врожайності за будь-яких умов вирощування. Найціннішими є генотипи, що поєднують у собі низький рівень коефіцієнта варіації (CV ≤ 10,0%), високу гомеостатичність і селекційну цінність. Серед них – лінії Erythrospermum 15-32 (Hom = 206,42, Sc = 4,11), Lutescens 14-47 (Hom = 98,41, Sc = 3,91), Erythrospermum 17-08 (Hom = 78,57, Sc = 3,76), Erythrospermum 14-65 (Hom = 54,84, Sc = 3,75), Lutescens 14-32 (Hom = 54,60, Sc = 4,17), Lutescens 14-13 (Hom = 35,60, Sc = 3,78) і Lutescens 14-48 (Hom = 46,66, Sc = 3,58).Висновки. Оцінка селекційного матеріалу має важливе значення для створення нових високопродуктивних сортів з адаптивним потенціалом. Метод оцінки екологічної пластичності та варіанси її стабільності дав змогу диференціювати лінії пшениці м’якої ярої конкурсного випробування за реакцією на зміну умов вирощування. Для оптимальнішого відбору селекційного матеріалу за показниками екологічної пластичності та стабільності у селекційних програмах слід враховувати ранжовані оцінки генотипів.

Plants respond to environmental conditions not only by plastic changes to their own development and physiology, but also by altering the phenotypes expressed by their offspring. This transgenerational plasticity was initially considered to entail only negative effects of stressful parental environments, such as production of smaller seeds by resource- or temperature-stressed parent plants, and was therefore viewed as environmental noise. Recent evolutionary ecology studies have shown that in some cases, these inherited environmental effects can include specific growth adjustments that are functionally adaptive to the parental conditions that induced them, which can range from contrasting states of controlled laboratory environments to the complex habitat variation encountered by natural plant populations. Preliminary findings suggest that adaptive transgenerational effects can be transmitted by means of diverse mechanisms including changes to seed provisioning and biochemistry, and epigenetic modifications such as DNA methylation that can persist across multiple generations. These non-genetically inherited adaptations can influence the ecological breadth and evolutionary dynamics of plant taxa and promote the spread of invasive plants. Interdisciplinary studies that join mechanistic and evolutionary ecology approaches will be an important source of future insights.

Мета. Порівняльна оцінка за врожайністю та адаптивністю сортів ячменю ярого Миронівського інституту пшениці імені В. М. Ремесла НААН різних років реєстрації. Методи. Дослідження проведені в Миронівському інституті пшениці імені В. М. Ремесла НААН у 2013–2017 рр. відповідно до загальноприйнятих методик. Об’єкт досліджень – 19 сортів ячменю ярого миронівської селекції зареєстрованих в Україні за період 1995–2017 рр. Для характеристики взаємодії генотип–середовище та диференціації сортів за врожайністю і стабільністю використали низку найбільш поширених підходів: S. A. Eberhart, W. A. Russel (1966); G. Wricke (1962); C. S. Lin, M. R. Binns (1988); M. Huehn (1990); А. В. Кильчевский, Л. В. Хотылёва (1985); В. В. Хангильдин, Н. А. Литвиненко (1981); J. L. Purchase та ін. (2000); AMMI; GGE biplot. Результати. Частка умов року досліджень у загальній варіації становила 83,40%. Достовірні, але суттєво нижчі значення мали генотип – 10,65% та взаємодія генотип–середовище – 5,95%. Перші дві головні компоненти GGE biplot пояснювали дещо більшу частку взаємодії генотип–середовище (85,58%) порівняно з AMMI моделлю (80,9%). Кореляційний аналіз виявив, що середня врожайність (Mean) мала вищесередній зв’язок як з максимальним (Max) (r = 0,69), так і мінімальним (Mіn) (r = 0,72) її значеннями. Сильну позитивну кореляцію Mean виявлено з парамет­рами: СЦГі (r = 0,88), Hom (r = 0,86), Sc (r = 0,82). Дуже сильний негативний зв’язок Mean відзначено з Pi (r = -0,96). Для Max середній негативний зв’язок спостерігали лише з Pi (r = -0,60). Mіn сильно корелювала з Sc (r = 0,96), СЦГі (r = 0,87), Hom (r = 0,84). Негативну сильну кореляцію відзначено Min з Sgi (r = -0,86). Між деякими показниками виявлено зв’язок від функціонального позитивного: δ2CAЗi і Кgi (r = 1,00), Wi і Lgi (r = 0,98), СЦГі і Hom (r = 0,98), СЦГі і Sc (r = 0,96), S2di і Wi (r = 0,96), Wi і ASV (r = 0,94), Sc і Hom (r = 0,94), δ2CAЗi і bi (r = 0,93), S2di і ASV (r = 0,93) до сильного негативного: Sgi іСЦГі (r = -0,94), Sgi і Sc(r = -0,92), Sgi і Hom (r = -0,91), Pi і СЦГі (r = -0,83), Pi і Sc (r = -0,80), Pi і Hom (r = -0,79). Висновки. Системна порівняльна оцінка статистичними і графічними підходами свідчить, що внесені до Державного реєстру сортів рослин, придатних для поширення в Україні у 2016–2017 рр. сорти ячменю ярого ‘Віраж’, ‘Талісман Миронівський’, ‘МІП Мирний’, ‘МІП Салют’, ‘МІП Сотник’, ‘МІП Азарт’, ‘МІП Богун’ переважають створені на попередніх етапах селекційної роботи сорти як за продуктивним, так і адаптивним потенціалом.

To create an industrial hemp variety of the Central European ecological and geographical type with a high cannabigerol content and universal application. Methods. Breeding (self-pollination, creation of artificial populations, selection), field, biochemical (thin-layer and gas-liquid chromatography of cannabinoid compounds), instrumental and technological assessment of fibre quality, and statistical methods. Results. Variety ‘Vik 2020’ was obtained as a result of creation of artificial populations. The plants are characterized by higher content of cannabigerol (1.034 ± 0.0323%), and almost zero of other secondary metabolites, such as cannabidivarin, cannabidiol, cannabichromene and psychotropic tetrahydrocannabinol (0.003 ± 0.0011; 0.018 ± 0.0080; 0.012 ± 0.0027, and 0.005 ± 0.0012%, respectively). The t rait of cannabigerol content is quite stable within the population and is not correlated with the trait of tetrahydrocannabinol content (r = -0.23). TLC showed that cannabigerol accumulated mainly in the form of cannabigerolic acid and to a lesser extent as a neutral compound, which is consistent with the theory that this substance is a precursor for the synthesis of other cannabinoids. According to the results of the competitive variety test, when growing to obtain fibre and seeds, the variety features short height, specifically significantly lower total (206.4 cm) and technical stem length (135.6 cm) compared to the standard variety, significantly higher inflorescence length (70.8 cm), which determine the formation of the significant yield of biomass suitable for pharmaceutical use and high seed yield (0.98 t/ha). The yield of total fibre was the same as in the standard variety (29.0%), but its quality and technological value for primary processing were higher. The variety had a homogeneous sex structure, resistance to bioltic and abiotic environmental factors. Plants reached biological maturity in 116 days (BBCH 89). This cultivar is recommended for obtaining seeds, quality fiber and potentially cannabigerol (on condition of changes in legislation). Conclusions. The efficiency of using self-pollinating lines in breeding with their subsequent combining into a synthetic population and improving selection was proved by the case of a new variety of industrial hemp ‘Vik 2020’, characterized by an increased content of cannabigerol and the absence of psychotropic properties

To create an industrial hemp variety of the Central European ecological and geographical type with a high cannabigerol content and universal application. Methods. Breeding (self-pollination, creation of artificial populations, selection), field, biochemical (thin-layer and gas-liquid chromatography of cannabinoid compounds), instrumental and technological assessment of fibre quality, and statistical methods. Results. Variety ‘Vik 2020’ was obtained as a result of creation of artificial populations. The plants are characterized by higher content of cannabigerol (1.034 ± 0.0323%), and almost zero of other secondary metabolites, such as cannabidivarin, cannabidiol, cannabichromene and psychotropic tetrahydrocannabinol (0.003 ± 0.0011; 0.018 ± 0.0080; 0.012 ± 0.0027, and 0.005 ± 0.0012%, respectively). The t rait of cannabigerol content is quite stable within the population and is not correlated with the trait of tetrahydrocannabinol content (r = -0.23). TLC showed that cannabigerol accumulated mainly in the form of cannabigerolic acid and to a lesser extent as a neutral compound, which is consistent with the theory that this substance is a precursor for the synthesis of other cannabinoids. According to the results of the competitive variety test, when growing to obtain fibre and seeds, the variety features short height, specifically significantly lower total (206.4 cm) and technical stem length (135.6 cm) compared to the standard variety, significantly higher inflorescence length (70.8 cm), which determine the formation of the significant yield of biomass suitable for pharmaceutical use and high seed yield (0.98 t/ha). The yield of total fibre was the same as in the standard variety (29.0%), but its quality and technological value for primary processing were higher. The variety had a homogeneous sex structure, resistance to bioltic and abiotic environmental factors. Plants reached biological maturity in 116 days (BBCH 89). This cultivar is recommended for obtaining seeds, quality fiber and potentially cannabigerol (on condition of changes in legislation). Conclusions. The efficiency of using self-pollinating lines in breeding with their subsequent combining into a synthetic population and improving selection was proved by the case of a new variety of industrial hemp ‘Vik 2020’, characterized by an increased content of cannabigerol and the absence of psychotropic properties

To create an industrial hemp variety of the Central European ecological and geographical type with a high cannabigerol content and universal application.Methods. Breeding (self-pollination, creation of artificial populations, selection), field, biochemical (thin-layer and gas-liquid chromatography of cannabinoid compounds), instrumental and technological assessment of fibre quality, and statistical methods.Results. Variety ?Vik 2020? was obtained as a result of creation of artificial populations. The plants are characterized by higher content of cannabigerol (1.034 ? 0.0323%), and almost zero of other secondary metabolites, such as cannabidivarin, cannabidiol, cannabichromene and psychotropic tetrahydrocannabinol (0.003 ? 0.0011; 0.018 ? 0.0080; 0.012 ? 0.0027, and 0.005 ? 0.0012%, respectively). The t rait of cannabigerol content is quite stable within the population and is not correlated with the trait of tetrahydrocannabinol content (r = -0.23). TLC showed that cannabigerol accumulated mainly in the form of cannabigerolic acid and to a lesser extent as a neutral compound, which is consistent with the theory that this substance is a precursor for the synthesis of other cannabinoids. According to the results of the competitive variety test, when growing to obtain fibre and seeds, the variety features short height, specifically significantly lower total (206.4 cm) and technical stem length (135.6 cm) compared to the standard variety, significantly higher inflorescence length (70.8 cm), which determine the formation of the significant yield of biomass suitable for pharmaceutical use and high seed yield (0.98 t/ha). The yield of total fibre was the same as in the standard variety (29.0%), but its quality and technological value for primary processing were higher. The variety had a homogeneous sex structure, resistance to bioltic and abiotic environmental factors. Plants reached biological maturity in 116 days (BBCH 89). This cultivar is recommended for obtaining seeds, quality fiber and potentially cannabigerol (on condition of changes in legislation).Conclusions. The efficiency of using self-pollinating lines in breeding with their subsequent combining into a synthetic population and improving selection was proved by the case of a new variety of industrial hemp ?Vik 2020?, characterized by an increased content of cannabigerol and the absence of psychotropic properties | ???????? ???? ??????????? ???????? ????????????????????? ???????-????????????? ???? ??????????????? ??????? ?????????????? ???????????? ? ??????????? ??????? ????????????.??????. ?????????? (?????????????, ????????? ??????????? ?????????, ?????), ???????, ?????????? (??????????? ?? ??????????? ????????????? ????????????? ??????), ???????????????-???????????? ?????????? ?????? ???????, ???????????.??????????. ? ?????????? ??????????? ???????? ???????? ???? ?????2020?, ??????? ????? ???????????????? ?????????? ??????? ???????????? (1,034???0,0323%), ?? ??? ????? ??????????? ????????????, ? ????? ?????? ??????????? ????? ????????? ??????????? ? ??????????????, ???????????, ????????????? ? ????????????? ???????????????????? (0,003???0,0011; 0,018???0,0080; 0,012???0,0027 ? 0,005???0,0012% ??????????). ?????? ?????? ???????????? ? ?????? ?????????? ? ????? ????????? ? ?? ??????????????? ? ??????? ?????? ???????????????????? (r =?-0,23). ?????????? ???????????? ????????????? ????????, ?? ??????????? ????????????? ????????? ? ????? ??????????????? ??????? ? ?????? ????? ?? ?????????? ???????, ?? ?????? ???????????? ? ???????, ?????? ? ???? ?? ???????? ? ???????????? ??? ??????? ????? ????????????. ?? ???????????? ??????????? ????????????????? ? ???? ??????????? ??? ????????? ??????? ? ??????? ???? ??????? ??????????????, ? ???? ??????? ????? ????????? ?? ??????-?????????? ????????? ????????? (206,4???) ? ????????? ??????? ??????? (135,6 ??), ? ??????? ?????? ??????????? ??????? ???????? (70,8 ??), ??? ???????????? ?????????? ??????? ???????, ????????? ??? ???????????? ?? ????????????? ????, ?? ??????????? ??????? (0,98??/??). ????? ?????????? ??????? ????????, ?? ? ? ?????-?????????, 29,0%, ??? ???? ????????????????? ????? ?????? ? ????????????? ???????? ?? ?????????? ????????????. ???? ??? ????????? ??????? ?????????, ????????? ?? ???- ?? ?????????? ???????? ??????????. ???????????? ?????? ?? ??????????? ????????? (BBCH 89) ??116 ???. ?????????????? ??? ??????????? ? ????? ????????? ???????, ???????? ??????? ? ?????????? ? ???????????? (?? ????? ????? ?????????????).????????. ???????? ???????????? ????????? ?? ???????????? ??????? ????????????? ????? ?? ????????? ?? ??????????? ? ?????????? ????????? ? ?????????????? ??????? ?? ???????? ?????? ????? ??????????? ???????? ???? 2020?, ?? ???????????????? ?????????? ??????? ???????????? ? ??????????? ???????????? ????????????.

Purpose. To reveal the peculiarities of the seasonal rhythm of growth and development of Itoh Group peony cultivars in the conditions of the M. M. Hryshko National Botanical Garden National Academy of Sciences of Ukraine. Methods. The objects of research were plants of 24 cultivars of Itoh Group peonies. The research was conducted on the experimental field of the Department of Flowering and Ornamental Plants of the M. M. Hryshko National Botanical Garden National Academy of Sciences of Ukraine during 2017–2020. The sum of effective temperatures was calculated by summing the daily air temperatures reduced by the biological zero. Results. The phenological phases of Ito Group cultivars growth were determined. Phenological spectra for different groups are presented. It was determined that the flowering of early cultivars: ‘First Arrival’, ‘Hillary’, ‘Julia Rose’, ‘Morning Lilac’, ‘Old Rose Dandy’, ‘Sonoma Apricot’ starts at the sum of effective temperatures ≥ 400 °С. The middle group hybrids bloom when the sum of temperatures reaches 450 °С. This group includes: ‘Bartzella’, ‘Callie’s Memory’, ‘Cora Louise’, ‘Lollipop’, ‘Scarlet Heaven’, ‘Sonoma Velvet Ruby’, ‘Yellow Dream’, ‘Yellow Emperor’, ‘Yellow Heaven’, ‘Yellow Waterlily’. Late flowering group includes: ‘Border Charm’, ‘Garden Treasure’, ‘Kopper Kettle’, ‘Pastel Splendor’, ‘Prairie Charm’, ‘Viking Full Moon’, ‘White Emperor’, ‘Yankee Doodle Dandy’; accumulation of effective temperatures above 500 °С is an essential requirement for their flowering. Conclusions. Itoh Group cultivars successfully pass all phases of seasonal development and manage to complete the growing season. Cultivars belong to the spring-summer-autumn-green phenorhythmotype. The onset of the corresponding phenological phases in peonies of the studied group of cultivars requires a certain sum of effective temperatures. Plant outgrowth begins on March 23 – April 2, when the sum of effective temperatures ranges from 20–40 °С. The flowering of varieties characterized as late spring, lasts 6–9 days ± 3–4 days, depending on the varietal characteristics and the year of cultivation. A rapid increase in the sum of effective temperatures up to 700 °C shortens the flowering phase by 4–5 days. An assortment of early (May 22–25 ± 2–3 days), medium (May 26–28 ± 3–5 days) and late-flowering (May 29–31 ± 4–6 days) cultivars has been selected, what ensures the continuity of peony flowering during two months.

Purpose. To reveal the peculiarities of the seasonal rhythm of growth and development of Itoh Group peony cultivars in the conditions of the M. M. Hryshko National Botanical Garden National Academy of Sciences of Ukraine. Methods. The objects of research were plants of 24 cultivars of Itoh Group peonies. The research was conducted on the experimental field of the Department of Flowering and Ornamental Plants of the M. M. Hryshko National Botanical Garden National Academy of Sciences of Ukraine during 2017–2020. The sum of effective temperatures was calculated by summing the daily air temperatures reduced by the biological zero.                 Results. The phenological phases of Ito Group cultivars growth were determined. Phenological spectra for different groups are presented. It was determined that the flowering of early cultivars: ‘First Arrival’, ‘Hillary’, ‘Julia Rose’, ‘Morning Lilac’, ‘Old Rose Dandy’, ‘Sonoma Apricot’ starts at the sum of effective temperatures ≥ 400 °С. The middle group hybrids bloom when the sum of temperatures reaches 450 °С. This group includes: ‘Bartzella’, ‘Callie’s Memory’, ‘Cora Louise’, ‘Lollipop’, ‘Scarlet Heaven’, ‘Sonoma Velvet Ruby’, ‘Yellow Dream’, ‘Yellow Emperor’, ‘Yellow Heaven’, ‘Yellow Waterlily’. Late flowering group includes: ‘Border Charm’, ‘Garden Treasure’, ‘Kopper Kettle’, ‘Pastel Splendor’, ‘Prairie Charm’, ‘Viking Full Moon’, ‘White Emperor’, ‘Yankee Doodle Dandy’; accumulation of effective temperatures above 500 °С is an essential requirement for their flowering. Conclusions. Itoh Group cultivars successfully pass all phases of seasonal development and manage to complete the growing season. Cultivars belong to the spring-summer-autumn-green phenorhythmotype. The onset of the corresponding phenological phases in peonies of the studied group of cultivars requires a certain sum of effective temperatures. Plant outgrowth begins on March 23 – April 2, when the sum of effective temperatures ranges from 20–40 °С. The flowering of varieties characterized as late spring, lasts 6–9 days ± 3–4 days, depending on the varietal characteristics and the year of cultivation. A rapid increase in the sum of effective temperatures up to 700 °C shortens the flowering phase by 4–5 days. An assortment of early (May 22–25 ± 2–3 days), medium (May 26–28 ± 3–5 days) and late-flowering (May 29–31 ± 4–6 days) cultivars has been selected, what ensures the continuity of peony flowering during two months.

Purpose. To reveal the peculiarities of the seasonal rhythm of growth and development of Itoh Group peony cultivars in the conditions of the M. M. Hryshko National Botanical Garden National Academy of Sciences of Ukraine.Methods. The objects of research were plants of 24 cultivars of Itoh Group peonies. The research was conducted on the experimental field of the Department of Flowering and Ornamental Plants of the M. M. Hryshko National Botanical Garden National Academy of Sciences of Ukraine during 2017–2020. The sum of effective temperatures was calculated by summing the daily air temperatures reduced by the biological zero.                 Results. The phenological phases of Ito Group cultivars growth were determined. Phenological spectra for different groups are presented. It was determined that the flowering of early cultivars: ‘First Arrival’, ‘Hillary’, ‘Julia Rose’, ‘Morning Lilac’, ‘Old Rose Dandy’, ‘Sonoma Apricot’ starts at the sum of effective temperatures ≥ 400 °С. The middle group hybrids bloom when the sum of temperatures reaches 450 °С. This group includes: ‘Bartzella’, ‘Callie’s Memory’, ‘Cora Louise’, ‘Lollipop’, ‘Scarlet Heaven’, ‘Sonoma Velvet Ruby’, ‘Yellow Dream’, ‘Yellow Emperor’, ‘Yellow Heaven’, ‘Yellow Waterlily’. Late flowering group includes: ‘Border Charm’, ‘Garden Treasure’, ‘Kopper Kettle’, ‘Pastel Splendor’, ‘Prairie Charm’, ‘Viking Full Moon’, ‘White Emperor’, ‘Yankee Doodle Dandy’; accumulation of effective temperatures above 500 °С is an essential requirement for their flowering.Conclusions. Itoh Group cultivars successfully pass all phases of seasonal development and manage to complete the growing season. Cultivars belong to the spring-summer-autumn-green phenorhythmotype. The onset of the corresponding phenological phases in peonies of the studied group of cultivars requires a certain sum of effective temperatures. Plant outgrowth begins on March 23 – April 2, when the sum of effective temperatures ranges from 20–40 °С. The flowering of varieties characterized as late spring, lasts 6–9 days ± 3–4 days, depending on the varietal characteristics and the year of cultivation. A rapid increase in the sum of effective temperatures up to 700 °C shortens the flowering phase by 4–5 days. An assortment of early (May 22–25 ± 2–3 days), medium (May 26–28 ± 3–5 days) and late-flowering (May 29–31 ± 4–6 days) cultivars has been selected, what ensures the continuity of peony flowering during two months. | Мета. Установити особливості сезонного ритму росту й розвитку сортів півоній Itoh Group в умовах Національного ботанічного саду імені М. М. Гришка НАН України (НБС).Методи. Об’єктом досліджень слугували рослини 24 сортів півоній Itoh Gp. Дослідження проводили на експериментальній ділянці відділу квітниково-декоративних рослин НБС протягом 2017–2020 рр. Суму ефективних температур обраховували через сумування добових температур повітря, зменшених на значення біологічного мінімуму.Результати. Виділено фенологічні фази росту й розвитку рослин півоній Іто-групи. Побудовано фенологічні спектри для різних феногруп. Установлено, що цвітіння ранніх сортів – ‘First Arrival’, ‘Hillary’, ‘Julia Rose’, ‘Morning Lilac’, ‘Old Rose Dandy’, ‘Sonoma Apricot’ – розпочинається за суми ефективних температур ≥ 400 °С. Сорти рослин середньої групи зацвітають, коли сума температур сягає 450 °С. До цієї групи належать ‘Bartzella’, ‘Callie’s Memory’, ‘Cora Louise’, ‘Lollipop’, ‘Scarlet Heaven’, ‘Sonoma Velvet Ruby’, ‘Yellow Dream’, ‘Yellow Emperor’, ‘Yellow Heaven’, ‘Yellow Waterlily’. Пізньоквітуюча група включає сорти ‘Border Charm’, ‘Garden Treasure’, ‘Kopper Kettle’, ‘Pastel Splendor’, ‘Prairie Charm’, ‘Viking Full Moon’, ‘White Emperor’, ‘Yankee Doodle Dandy’, необхідною умовою цвітіння яких є накопичення ефективних температур понад 500 °С.Висновки. Рослини сортів півоній Itoh Gp успішно проходять усі фази сезонного розвитку та встигають завершити вегетацію. За тривалістю вегетації вони належать до весняно-літньо-осінньозеленого феноритмотипу. Настання відповідних фенологічних фаз у півоній досліджуваної групи сортів потребує певної суми ефективних температур. Відростання сортів розпочинається 23 березня – 2 квітня, коли сума ефективних температур змінюється в межах 20–40 °С. Цвітіння сортів характеризується як пізньовесняне, триває 9–16 діб ± 3–4 доби й залежить від сортових особливостей рослин та року вирощування. Швидке наростання суми ефективних температур до 700 °C під час цвітіння рослин скорочує його тривалість на 4–5 діб. Аналіз фенологічних спектрів сезонного розвитку рослин дав змогу виділити сортимент ранньо‑ (22–25 травня ± 2–3 доби), середньо‑ (26–28 травня ± 3–5 діб) та пізньоквітуючих (29–31 травня ± 4–6 діб) півоній Itoh Gp, що забезпечує безперервність їхнього цвітіння загалом упродовж двох місяців.