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.

Purpose. Evaluate the introduced samples of soft winter wheat from the international nursery Common Bunt-Resistant Nursery (CBUNT-RES) of different ecological and geographical origin in the southern part of the Forest-Steppe zone of Ukraine according to a set of productivity indicators in order to define the most valuable samples and describe them. Methods. During 2016–2019 on the base of Ustymivka Experimental Station for Plant Production of the V. Ya. Yuriev Plant Production Institute of NAAS the authors studied, evaluated and described 75 new soft winter wheat samples of various eco-geographical origins by productivity traits. In the field and laboratory conditions, indicators of yield and productivi­ty were determined: 1000 grains weight, plant height and ear length, the number of spikelets and grains in the ear, weight of ear and grain and early-ripening. Results. Plant material with increased parameters of economic and biological characters was identified. During studies, it was found that ‘F08347G8’, ‘F00628G34-1’ (Romania), ‘91-142A61/KATIA1//GRISET-4’, ‘SAULESKU#44/TR810200//GRISET-4’, ‘ATTILA/BABAX//PASTOR/4/…’ (IU067591) (Turkey), ‘INTENSIVNAYA//PBW343*2/TUKURU’, ‘SANZAR-8/KKTS’ (Mexico) were the high-yielding varieties. The samples of soft winter wheat as ‘F08347G8’, ‘F00628G34-1’ (Romania), ‘INTENSIVNAYA//PBW343*2/…’ (IU067637) (Mexico), ‘ATAY/GALVEZ87/6/TAST/…’ (IU067587), ‘DE9/MERCAN-2’, ‘KRASNODAR/FRTL/6…’ (IU067595), ‘SAULESKU#44/TR810200//GRISET-4’, ‘GANSU-1/3/AUSGS50AT34/…’ (IU067598), ‘ORKINOS-1*2/3/AUS…’ (IU067608), ‘KAMBARA1/ZANDER-17’ , ‘TAM200/KAUZ/4/CHAM6//…’ (IU067612) (Turkey) contained a large grain weight (more than 5.0 g), plant productivity in these samples was rather high due to increased amount of grains and the thousand kernel weight. Conclusions. The introduced soft winter wheat samples of various eco-geographical origins were adapted to the Southern Forest-Steppe and can be recommended as a source material in breeding to increasing productive capacity.

Мета. Оцінити сорти гречки їстівної Fagopyrum esculentum Moench за морфологічними ознаками з використанням алгоритму найближчих сусідів за допомогою кластеризації сортів рослин та ідентифікувати групи схожих сортів. Методи. Аналітичний, математичний, статистичний. Як вхідну інформацію для статистичного оброблення було використано результатні дані експертизи на відмінність, однорідність та стабільність (ВОС) з бази даних автоматизованої інформаційної системи Українського інституту експертизи сортів рослин. Моделювання було проведено з використанням алгоритму найближчих сусідів, методом Machine Learning у середовищі статистичного пакета IBM SPSS Statistics «Statistical Package for the Social Sciences». У ролі параметрів моделі було використано такі типи змінних: цільова змінна – ознака «Рослина: тип росту», фокусна змінна – «Рослина: плоїдність», мітка спостережень – «Назва сор­ту». Перелік показників (features) складали такі ознаки: «Рослина: плоїдність», «Стебло: антоціанове забарвлення», «Суцвіття: антоціанове забарвлення бруньки», «Час початку цвітіння», «Рослина: тип росту», «Рослина: за висотою», «Квітка: забарвлення пелюсток», «Стебло: за довжиною», «Стебло: кількість вузлів», «Стебло: діаметр», «Час достигання», «Насінина: за довжиною», «Насінина: форма», «Насінина: забарвлення шкірки», «Насіння: маса 1000 шт.». До складу моделі було узято 25 сортів гречки їстівної вітчизняного та іноземного походження, які включені до Державного реєстру сортів рослин, придатних для поширення в Україні на 2020 рік. Результати. Унаслідок комп’ютерного моделювання було сформовано модель подібних сортів гречки їстівної за сімнадцятьма морфологічними ознаками, які відібрано із застосуванням частотного аналізу проявлення морфологічних ознак. Сформована модель містила 17 тренувальних об’єктів (сортів) та дев’ять контрольних об’єктів (сортів). Було ідентифіковано 22 групи подібних сортів гречки їстівної. Висновки. Сорти гречки їстівної F. esculentum було оцінено за морфологічними ознаками з використанням алгоритму найближчих сусідів за допомогою кластеризації подібних сортів рослин. Було ідентифіковано такі найподібніші групи сортів: перша – ‘Крупнозелена’, ‘Дикуль’, ‘Дев’ятка’ та ‘Ювілейна 100’; друга – ‘Рута’, ‘Мальва’, ‘Надійна’ та ‘Володар’; третя – ‘Ксенія’, ‘Сімка’, ‘Селяночка’ та ‘Мальва’.

Acca sellowiana (Myrtaceae), feijoa (in Brazil, goiaba da serra), is a native southern South America tree that produces edible fruits which, although only occasionally cultivated in South America, became a significant fruit crop in New Zealand. Recently, during surveys for fungal pathogens of feijoa in southern Brazil, several plants were found bearing tar-spot symptoms caused by a species of Phyllachora. A literature search enabled us to identify the fungus as Phyllachora feijoae, a little-known species originally described in the 19th century by H. Rehm and later transferred to the genus Catacauma. The name Catacauma feijoae, although now regarded as a later synonym of P. feijoae is still mistakenly in use (as, for instance, in the Brazilian list of fungi on plants). The type specimen was most probably deposited in the Botanisches Garten und Museum Berlin-Dahlem (B) and lost or destroyed during World War II, and could not be located. The recent recollection of abundant material of this fungus in the vicinity of Pelotas (Rio Grande do Sul, Brazil) allowed its re-examination and neotypification. Phyllachora feijoae is also illustrated here for the first time.

Acca sellowiana (Myrtaceae), feijoa (in Brazil, goiaba da serra), is a native southern South America tree that produces edible fruits which, although only occasionally cultivated in South America, became a significant fruit crop in New Zealand. Recently, during surveys for fungal pathogens of feijoa in southern Brazil, several plants were found bearing tar-spot symptoms caused by a species of Phyllachora. A literature search enabled us to identify the fungus as Phyllachora feijoae, a little-known species originally described in the 19th century by H. Rehm and later transferred to the genus Catacauma. The name Catacauma feijoae, although now regarded as a later synonym of P. feijoae is still mistakenly in use (as, for instance, in the Brazilian list of fungi on plants). The type specimen was most probably deposited in the Botanisches Garten und Museum Berlin-Dahlem (B) and lost or destroyed during World War II, and could not be located. The recent recollection of abundant material of this fungus in the vicinity of Pelotas (Rio Grande do Sul, Brazil) allowed its re-examination and neotypification. Phyllachora feijoae is also illustrated here for the first time.

Purpose. To study the morphological features and determine the biometric indices of leaves of English roses. Methods. Field, morphological, descriptive, biometric. Morphological descriptions were carried out in accordance with the Atlas of morphological features of rose varieties (Rosa L.) (2009) and the Illustrated Guide to Flowering Plant Morphology (2004). Results. The morphological features of the leaves of English rose varieties were determined. Quantitative (length of complex leaf, number of leaf plates, area of leaflet, total leaf area) and qualitative (leaflet shape, leaflet edge shape, leaflet base shape, leaflet tip) were studied. Varieties of English roses that have maximum and minimum values for these indicators were highlighted. Conclusions. The morphological features were revealed and the biometric indicators of the leaves of English roses from the collection of the State Dendrological Park “Alexandria” NAS of Ukraine were determined. The amplitude of variability of morphological characters of the studied varieties was determined. Peculiarities of the morphological structure and biometric parameters of leaves of English rose varieties can be diagnostic signs for determining varieties within the boundaries of the species. Plants with increased photosynthetic productivity of the leaf apparatus, which is characteristic of the ‘James Galway’ and ‘A Shropshire Lad’ varieties, have an advantage in landscaping.

Purpose. To study the morphological features and determine the biometric indices of leaves of English roses. Methods. Field, morphological, descriptive, biometric. Morphological descriptions were carried out in accordance with the Atlas of morphological features of rose varieties (Rosa L.) (2009) and the Illustrated Guide to Flowering Plant Morphology (2004). Results. The morphological features of the leaves of English rose varieties were determined. Quantitative (length of complex leaf, number of leaf plates, area of leaflet, total leaf area) and qualitative (leaflet shape, leaflet edge shape, leaflet base shape, leaflet tip) were studied. Varieties of English roses that have maximum and minimum values for these indicators were highlighted. Conclusions. The morphological features were revealed and the biometric indicators of the leaves of English roses from the collection of the State Dendrological Park “Alexandria” NAS of Ukraine were determined. The amplitude of variability of morphological characters of the studied varieties was determined. Peculiarities of the morphological structure and biometric parameters of leaves of English rose varieties can be diagnostic signs for determining varieties within the boundaries of the species. Plants with increased photosynthetic productivity of the leaf apparatus, which is characteristic of the ‘James Galway’ and ‘A Shropshire Lad’ varieties, have an advantage in landscaping.

Purpose. To study the morphological features and determine the biometric indices of leaves of English roses. Methods. Field, morphological, descriptive, biometric. Morphological descriptions were carried out in accordance with the Atlas of morphological features of rose varieties (Rosa L.) (2009) and the Illustrated Guide to Flowering Plant Morphology (2004). Results. The morphological features of the leaves of English rose varieties were determined. Quantitative (length of complex leaf, number of leaf plates, area of leaflet, total leaf area) and qualitative (leaflet shape, leaflet edge shape, leaflet base shape, leaflet tip) were studied. Varieties of English roses that have maximum and minimum values for these indicators were highlighted. Conclusions. The morphological features were revealed and the biometric indicators of the leaves of English roses from the collection of the State Dendrological Park “Alexandria” NAS of Ukraine were determined. The amplitude of variability of morphological characters of the studied varieties was determined. Peculiarities of the morphological structure and biometric parameters of leaves of English rose varieties can be diagnostic signs for determining varieties within the boundaries of the species. Plants with increased photosynthetic productivity of the leaf apparatus, which is characteristic of the ‘James Galway’ and ‘A Shropshire Lad’ varieties, have an advantage in landscaping. | Мета. Вивчити морфологічні особливості та визначити біометричні показники листків англійських троянд.Методи. Польовий, морфолого-описовий, біометричний. Опис морфологічних ознак виконували згідно з «Атласом морфологічних ознак сортів троянди (Rosa L.)» (2009) та «Ілюстрованим довідником з морфології квіткових рослин» (2009).Результати. Визначено морфологічні особливості листків сортів англійських троянд. Вивчено кількісні (довжина складного листка, кількість листкових пластинок, площа листкової пластинки, загальна площа листка) та якісні (форма листкової пластинки, форма краю листкової пластинки, форма основи листкової пластинки, форма верхівки листкової пластинки) показники. Виділено сорти англійських троянд, які мають максимальні та мінімальні значення за цими показниками.Висновки. Виявлено морфологічні особливості та визначено біометричні показники листків англійських троянд з колекції Державного дендрологічного парку «Олександрія» НАН України. Встановлено амплітуду мінливості морфологічних ознак досліджуваних сортів. Особливості морфологічної будови та біометричних параметрів листків рослин сортів англійських троянд можуть бути діагностичними ознаками для визначення сортів у межах виду. В озелененні переважають рослини із збільшеною фотосинтетичною продуктивністю листкового апарату, яка властива сортам ‘James Galway’ та ‘A Shropshire Lad’. | Цель. Изучить морфологические особенности и определить биометрические показатели листков английских роз. Методы. Полевой, морфолого-описательный, биомет­рический. Описание морфологических признаков проводили в соответствии с «Атласом морфологічних ознак сортів троянди (Rosa L.) (2009) и «Ілюстрованим довідником з морфології квіткових рослин» (2004). Результаты. Определены морфологические особенности листьев сортов английских роз. Изучены количественные (длина сложного листа, количество листовых пластинок, площадь листовой пластинки, общая площадь листа) и качественные (форма листовой пластинки, форма края листовой пластинки, форма основания листовой пластинки, форма верхушки листовой пластинки) показатели. Выделены сорта английских роз, которые имеют максимальные и минимальные значения по этим показателям. Выводы. Установлены морфологические особенности и определены биометрические показатели листов английских роз из коллекции Государственного дендрологического парка «Александрия» НАН Украины. Определена амплитуда изменчивости морфологических признаков исследуемых сортов. Особенности морфологического строения и биометрических параметров листов растений сортов английских роз могут быть диагностическими признаками для определения сортов в границах вида. Для озеленения преимущество имеют растения с увеличенной фотосинтетической продуктивностью листового аппарата, что является характерным для сортов ‘James Galway’ и ‘A Shropshire Lad’.

Purpose. Identifying the features of the seasonal growth rhythm, development of the plants, morphological and biological differences in monoecious introduced and domestic varieties of Cannabis sativa L. in the North-east region of Ukraine. Methods. The research was conducted from 2014 till 2019. The following research methods were employed: field (phenological observations, sampling for laboratory analysis), microscopic (study of the morphological structure of glandular and cystolithic hairs on vegetative and generative organs, determination of the size and density of hair formation), laboratory and analytical (determination of the content of cannabinoid substances by thin layer and gas-liquid chromatography), biomorphological me­thods (analysis of morphological characteristics of plants). Chemical analysis for the content of cannabinoid substan­ces was carried out in the laboratory of the breeding and seed production department of the Institute of Bast Crops of the NAAS of Ukraine (Glukhiv, 2014–2019). The content of neutral substances [cannabinol (CBN), cannabidiol (CBD), tetrahydrocannabinol (THC)] and acids (CBDA, THCA) was determined by using a thin layer chromatography (TLC) and gas-liquid chromatography (GLC) methods. For the study, 11 monoecious varieties of C. sativa: ‘YuSO 1’, ‘YuSO 31’, ‘Hliana’, ‘Viktoriia’, ‘Hlesiia’, ‘Hlukhivskyi 46’, ‘Hlukhivski 51’, ‘Zoloto­niski 15’ and 3 introduced varieties: ‘Fedora 17’, ‘Felina 32’, ‘Futura 77’ (France) which differed among themselves in morphological, biological, genetic, ecological-geographical and economically valuable characteristics were selected. Results. Biological and morphological characteristics of modern monoecious varieties of C. sativa were investigated depending on the ecological and geographical zones of origin, conditions of the growing season and the stage of ontogenesis. The functional interdependence between the formation of specialized excretory structures and the content of cannabinoid substances in plants of different varieties of C. sa­tiva  was revealed. The following promising varieties of C. sativa in a ration of ((THC + CBN) ≤ CBD) point the possibility to use them as the source material for creating the medicinal varie­ties of plants with a high content of CBD. Conclusions. Nowadays C. sativa is the main source of phyto material for industrial production of natural CBD. In recent years, high-yielding varieties of C. sativa have been created, which, together with high commercially valuable traits, did not contain psychoactive THC and had an insignificant amount of CBD. The results of the research indicated the features of the seasonal growth rhythm, development of the plants and the morphological and biological features of modern monoecious introduced and domestic varieties of C. sativa in the North-east region of Ukraine. The low correlation between the content of cannabinoid substances and their acids in varieties, which are cha­racterized by the low content of cannabinoid compounds was established. According to the developed own classification (THC + KBN): CBD, varieties with a predominant CBD content ‘Hlukhivskyi 46’, ‘Zolotoniski 15’, ‘Hliana’ which are of significant medicinal value were identified.

Purpose. Identifying the features of the seasonal growth rhythm, development of the plants, morphological and biological differences in monoecious introduced and domestic varieties of Cannabis sativa L. in the North-east region of Ukraine. Methods. The research was conducted from 2014 till 2019. The following research methods were employed: field (phenological observations, sampling for laboratory analysis), microscopic (study of the morphological structure of glandular and cystolithic hairs on vegetative and generative organs, determination of the size and density of hair formation), laboratory and analytical (determination of the content of cannabinoid substances by thin layer and gas-liquid chromatography), biomorphological me­thods (analysis of morphological characteristics of plants). Chemical analysis for the content of cannabinoid substan­ces was carried out in the laboratory of the breeding and seed production department of the Institute of Bast Crops of the NAAS of Ukraine (Glukhiv, 2014–2019). The content of neutral substances [cannabinol (CBN), cannabidiol (CBD), tetrahydrocannabinol (THC)] and acids (CBDA, THCA) was determined by using a thin layer chromatography (TLC) and gas-liquid chromatography (GLC) methods. For the study, 11 monoecious varieties of C. sativa: ‘YuSO 1’, ‘YuSO 31’, ‘Hliana’, ‘Viktoriia’, ‘Hlesiia’, ‘Hlukhivskyi 46’, ‘Hlukhivski 51’, ‘Zoloto­niski 15’ and 3 introduced varieties: ‘Fedora 17’, ‘Felina 32’, ‘Futura 77’ (France) which differed among themselves in morphological, biological, genetic, ecological-geographical and economically valuable characteristics were selected. Results. Biological and morphological characteristics of modern monoecious varieties of C. sativa were investigated depending on the ecological and geographical zones of origin, conditions of the growing season and the stage of ontogenesis. The functional interdependence between the formation of specialized excretory structures and the content of cannabinoid substances in plants of different varieties of C. sa­tiva was revealed. The following promising varieties of C. sativa in a ration of ((THC + CBN) ≤ CBD) point the possibility to use them as the source material for creating the medicinal varie­ties of plants with a high content of CBD. Conclusions. Nowadays C. sativa is the main source of phyto material for industrial production of natural CBD. In recent years, high-yielding varieties of C. sativa have been created, which, together with high commercially valuable traits, did not contain psychoactive THC and had an insignificant amount of CBD. The results of the research indicated the features of the seasonal growth rhythm, development of the plants and the morphological and biological features of modern monoecious introduced and domestic varieties of C. sativa in the North-east region of Ukraine. The low correlation between the content of cannabinoid substances and their acids in varieties, which are cha­racterized by the low content of cannabinoid compounds was established. According to the developed own classification (THC + KBN): CBD, varieties with a predominant CBD content ‘Hlukhivskyi 46’, ‘Zolotoniski 15’, ‘Hliana’ which are of significant medicinal value were identified.

Purpose. To establish the optimal seeding time and depth of ‘Dniprovskyi 39’ and ‘Vinets’ sorghum varieties, to prove their effect on the crop photosynthetic capacity in the Right-Bank Forest-Steppe of Ukraine. Methods. Field, laboratory, comparative, analytical, generalizing, mathematical and statistical. Results. It was proved that the best results of crop photosynthetic capacity of sorghum were obtained by sowing in the first decade of May (the second sowing period) at a seeding depth of 4–6 cm. Accordingly, the leaf surface area in these variants reached its maximum during the “panicle-blooming” period and equated 36.13–38.81 thousand m2/ha for the ‘Dniprovskyi 39’ variety and 34.23–36.91 thousand m2/ha for the ‘Vinets’ variety. By sowing seeds in the third decade of April (the first sowing period) at the seedining depth values described above the leaf surface area of the varieties was slightly smaller and amounted to 29.56–31.20 thousand m2/ha for the ‘Dniprovskyi 39’ variety and 27.76–29.40 thousand m2/ha for the ‘Vinets’ variety. By sowing seeds in the second decade of May (the third sowing period), the leaf surface area was 30.68–32.92 thousand m2/ha for the ‘Dniprovskyi 39’ variety and 29.08–31.32 thousand m2/ha for the ‘Vinets’ variety. The highest photosynthetic potential was obtained for sorghum plants in the second sowing period at the seeding depth of 4–6 cm and was 1.27 and 1.34 million m2/ha for the ‘Dniprovskyi 39’ variety and 1.16 and 1.22 million m2/ha for the variety ‘Vinets’. In the first sowing period, this indicator was slightly lower and amounted to 1.18 and 1.23 million m2/ha for the ‘Dniprovskyi 39’ variety and 0.98 and 1.02 million m2/ha for the ‘Vinets’ variety respectively. In the third sowing period, it was the smallest one and equated 1.09 and 1.13 million m2/ha for the ‘Dniprovskyi 39’ variety, and 0.88 and 0.93 million m2/ha for the ‘Vinets’ variety at the optimal seeding depth. The photosynthetic potential was lower at the seeding depth of 2 and 8 cm, which is explained by the different soil and climatic parameters during a certain period of sorghum plant vegetation. The highest value of the photosynthetic capacity net indicator was obtained by sowing seeds at the optimal time and the optimal seeding depth and it equated 3.84–4.02 g/m2 per day for the ‘Dniprovskyi 39’ variety and 3.79 – 3.98 g/m2 per day for the ‘Vinets’ variety. Conclusions. It has been established that the sorghum plants had better vegetation and formed photosynthetic capacity by sowing seeds in the first decade of May at the planting depth of 4–6 cm, which we recommend for growing this crop in the Right-Bank Forest-Steppe of Ukraine.

Purpose. To establish the optimal seeding time and depth of ‘Dniprovskyi 39’ and ‘Vinets’ sorghum varieties, to prove their effect on the crop photosynthetic capacity in the Right-Bank Forest-Steppe of Ukraine. Methods. Field, laboratory, comparative, analytical, generalizing, mathematical and statistical. Results. It was proved that the best results of crop photosynthetic capacity of sorghum were obtained by sowing in the first decade of May (the second sowing period) at a seeding depth of 4–6 cm. Accordingly, the leaf surface area in these variants reached its maximum during the “panicle-blooming” period and equated 36.13–38.81 thousand m2/ha for the ‘Dniprovskyi 39’ variety and 34.23–36.91 thousand m2/ha for the ‘Vinets’ variety. By sowing seeds in the third decade of April (the first sowing period) at the seedining depth values described above the leaf surface area of the varieties was slightly smaller and amounted to 29.56–31.20 thousand m2/ha for the ‘Dniprovskyi 39’ variety and 27.76–29.40 thousand m2/ha for the ‘Vinets’ variety. By sowing seeds in the second decade of May (the third sowing period), the leaf surface area was 30.68–32.92 thousand m2/ha for the ‘Dniprovskyi 39’ variety and 29.08–31.32 thousand m2/ha for the ‘Vinets’ variety. The highest photosynthetic potential was obtained for sorghum plants in the second sowing period at the seeding depth of 4–6 cm and was 1.27 and 1.34 million m2/ha for the ‘Dniprovskyi 39’ variety and 1.16 and 1.22 million m2/ha for the variety ‘Vinets’. In the first sowing period, this indicator was slightly lower and amounted to 1.18 and 1.23 million m2/ha for the ‘Dniprovskyi 39’ variety and 0.98 and 1.02 million m2/ha for the ‘Vinets’ variety respectively. In the third sowing period, it was the smallest one and equated 1.09 and 1.13 million m2/ha for the ‘Dniprovskyi 39’ variety, and 0.88 and 0.93 million m2/ha for the ‘Vinets’ variety at the optimal seeding depth. The photosynthetic potential was lower at the seeding depth of 2 and 8 cm, which is explained by the different soil and climatic parameters during a certain period of sorghum plant vegetation. The highest value of the photosynthetic capacity net indicator was obtained by sowing seeds at the optimal time and the optimal seeding depth and it equated 3.84–4.02 g/m2 per day for the ‘Dniprovskyi 39’ variety and 3.79 – 3.98 g/m2 per day for the ‘Vinets’ variety. Conclusions. It has been established that the sorghum plants had better vegetation and formed photosynthetic capacity by sowing seeds in the first decade of May at the planting depth of 4–6 cm, which we recommend for growing this crop in the Right-Bank Forest-Steppe of Ukraine.

Цель. Установить оптимальные сроки сева и глубину заделки семян сорго зернового сортов ‘Дніпровський 39’ и ‘Вінець’, обосновать их влияние на фотосинтетическую продуктивность посевов в условиях Правобережной Лесостепи Украины.Методы. Полевой, лабораторный, сравнительный, аналитический, обобщающий, математически-статистический.Результаты. Наилучшие результаты фотосинтетической продуктивности посевов сорго зернового получены во время сева в I декаде мая (второй срок) на глубине заделки семян 4–6 см. Соответственно, площадь листовой поверхности в этих вариантах в период «выбрасывания метелки–цветения» достигала максимума и составляла 36,13–38,81 тыс. м2/га у сорта ‘Дніпровський 39’ и 34,23 – 36,91 тыс. м2/га у сорта ‘Вінець’. При севе семян в III декаде апреля (первый срок) при вышеуказанных значениях глубины заделки площадь листовой поверхнос­ти у сортов была несколько меньше и составляла 29,56–31,20 тыс. м2/га у сорта ‘Дніпровський 39’ и 27,76–29,40 тыс. м2/га у сорта ‘Вінець’. При севе семян во II декаде мая (третий срок) площадь листовой поверхности составляла 30,68–32,92 тыс. м2/га у сорта ‘Дніпровський 39’ и 29,08–31,32 тыс. м2/га у сорта ‘Вінець’. Фотосинтетический потенциал был самым высоким в растениях сорго зернового во втором сроке сева семян на глубине заделки 4–6 см и составлял 1,27 и 1,34 млн м2/га у сорта ‘Дніпровський 39’ и 1,16 и 1,22 млн м2/га у сорта ‘Вінець’. В первом сроке сева этот показатель был несколько ниже и составлял 1,18 и 1,23 млн м2/га у сорта ‘Дніпровський 39’ и 0,98 и 1,02 млн м2/га у сорта ‘Вінець’, соответственно. В третьем сроке сева он был самым низким, у сорта ‘Дніпровський 39’ этот показатель составлял 1,09 и 1,13 млн м2/га, у сорта ‘Вінець’ – 0,88 и 0,93 млн м2/га при оптимальных значениях глубины заделки семян. На глубине заделки семян 2 и 8 см фотосинтетический потенциал был ниже, что объясняют различными почвенно-климатическими условиями в определенный период развития растений сорго. Наивысшее значение показателя чистой продуктивности фотосинтеза было получено при севе семян в оптимальные сроки и оптимальной глубине заделки семян и составляло 3,84–4,02 г/м2 в сутки у сорта ‘Дніпровський 39’ и 3,79–3,98 г/м2 в сутки у сорта ‘Вінець’, соответственно.Выводы. Лучше развивались и формировали фотосинтетическую продуктивность растения сорго зернового при севе семян в первой декаде мая на глубине заделки 4–6 см, которые и рекомендованы для выращивания данной культуры в Правобережной Лесостепи Украины. | Purpose. To establish the optimal seeding time and depth of ‘Dniprovskyi 39’ and ‘Vinets’ sorghum varieties, to prove their effect on the crop photosynthetic capacity in the Right-Bank Forest-Steppe of Ukraine. Methods. Field, laboratory, comparative, analytical, generalizing, mathematical and statistical. Results. It was proved that the best results of crop photosynthetic capacity of sorghum were obtained by sowing in the first decade of May (the second sowing period) at a seeding depth of 4–6 cm. Accordingly, the leaf surface area in these variants reached its maximum during the “panicle-blooming” period and equated 36.13–38.81 thousand m2/ha for the ‘Dniprovskyi 39’ variety and 34.23–36.91 thousand m2/ha for the ‘Vinets’ variety. By sowing seeds in the third decade of April (the first sowing period) at the seedining depth values described above the leaf surface area of the varieties was slightly smaller and amounted to 29.56–31.20 thousand m2/ha for the ‘Dniprovskyi 39’ variety and 27.76–29.40 thousand m2/ha for the ‘Vinets’ variety. By sowing seeds in the second decade of May (the third sowing period), the leaf surface area was 30.68–32.92 thousand m2/ha for the ‘Dniprovskyi 39’ variety and 29.08–31.32 thousand m2/ha for the ‘Vinets’ variety. The highest photosynthetic potential was obtained for sorghum plants in the second sowing period at the seeding depth of 4–6 cm and was 1.27 and 1.34 million m2/ha for the ‘Dniprovskyi 39’ variety and 1.16 and 1.22 million m2/ha for the variety ‘Vinets’. In the first sowing period, this indicator was slightly lower and amounted to 1.18 and 1.23 million m2/ha for the ‘Dniprovskyi 39’ variety and 0.98 and 1.02 million m2/ha for the ‘Vinets’ variety respectively. In the third sowing period, it was the smallest one and equated 1.09 and 1.13 million m2/ha for the ‘Dniprovskyi 39’ variety, and 0.88 and 0.93 million m2/ha for the ‘Vinets’ variety at the optimal seeding depth. The photosynthetic potential was lower at the seeding depth of 2 and 8 cm, which is explained by the different soil and climatic parameters during a certain period of sorghum plant vegetation. The highest value of the photosynthetic capacity net indicator was obtained by sowing seeds at the optimal time and the optimal seeding depth and it equated 3.84–4.02 g/m2 per day for the ‘Dniprovskyi 39’ variety and 3.79 – 3.98 g/m2 per day for the ‘Vinets’ variety.Conclusions. It has been established that the sorghum plants had better vegetation and formed photosynthetic capacity by sowing seeds in the first decade of May at the planting depth of 4–6 cm, which we recommend for growing this crop in the Right-Bank Forest-Steppe of Ukraine. | Мета. Встановити оптимальні строки сівби та глибину загортання насіння сорго зернового сортів ‘Дніпровський 39’ та ‘Вінець’, обґрунтувати їхній вплив на фотосинтетичну продуктивність посівів в умовах Правобережного Лісостепу України. Методи. Польовий, лабораторний, порівняльний, аналітичний, узагальнюючий, математично-статистичний. Результати. Найкращі результати фотосинтетичної продуктивності посівів сорго зернового отримано за сівби у  І декаді травня (другий строк) на глибину загортання насіння 4–6 см. Відповідно, площа листкової поверхні за цих факторів у період «викидання волоті – цвітіння» сягала максимуму і дорівнювала 36,13–38,81 тис. м2/га у сорту ‘Дніпровський 39’ та 34,23–36,91 тис. м2/га у сорту ‘Вінець’. За сівби насіння у ІІІ декаді квітня (перший строк) за таких самих значень глибини загортання площа листкової поверхні у сортів була дещо меншою і становила 29,56–31,20 тис. м2/га у сорту ‘Дніпровський 39’ та 27,76–29,40 тис. м2/га у сорту ‘Вінець’. За сівби насіння у ІІ декаді травня (третій строк) площа листкової поверхні дорівнювала 30,68–32,92 тис. м2/га у сорту ‘Дніпровський 39’ та 29,08–31,32 тис. м2/га у сорту ‘Вінець’. Фотосинтетичний потенціал був найвищим у рослин сорго зернового за ІІ строку сівби насіння та глибини загортання 4–6 см й дорівнював 1,27 та 1,34 млн м2/га у сорту ‘Дніпровський 39’ і 1,16 та 1,22 млн м2/га у сорту ‘Вінець’. За І строку сівби цей показник був дещо меншим і відповідно становив 1,18 та 1,23 млн м2/га у сорту ‘Дніпровський 39’ й 0,98 і 1,02 млн м2/га у сорту ‘Вінець’. За ІІІ строку сівби він був найменшим та у сорту ‘Дніпровський 39’ дорівнював 1,09 і 1,13 млн м2/га, у сорту ‘Вінець’ 0,88 і 0,93 млн м2/га за оптимальних значень глибини загортання насіння. За глибини загортання насіння 2 та 8 см фотосинтетичний потенціал був нижчим, що пояснюють різними ґрунтово-кліматичними умовами у певний період розвитку рослин сорго. Найбільше значення показника чистої продуктивності фотосинтезу було отримано за сівби насіння в оптимальні строки та за оптимальної глибини загортання насіння і становило у сорту ‘Дніпровський 39’, відповідно, 3,84–4,02 г/м2 за добу, у сорту ‘Вінець’ 3,79–3,98 г/м2 за добу.Висновки. Найкраще розвивались та формували фотосинтетичну продуктивність рослини сорго зернового за сівби насіння у першій декаді травня на глибину загортання 4–6 см, які й рекомендовано для вирощування даної культури в Правобережному Лісостепу України.

Purpose. To study the economic and biological characteristics and to reveal the genetic potential of various hybrids of Chinese cabbage depending on the climatic zone of cultivation. Methods. In the experiment, hybrids of Chinese cabbage ‘Pioner F1’ (control), ‘Villi F1’, ‘Manoko F1’, ‘Orient Star F1’, ‘Vitimo F1’, ‘Sprinkin F1’, ‘Summer Highland F1’, ‘Suprin F1’, and ‘Richi F1’ were evaluated. The experiment was laid out in a randomized block design with four replications with a single plot area of 21 m2. The container seedlings (40 days old) were planted in the middle of April according to the scheme 70 cm by 25 cm. Results. Having been planted at the same time, seed germination over the studied hybrids was not simultaneous. The first sprouted seeds (4 days after seeding) belonged to hybrids ‘Villi F1’, ‘Manoko F1’, ‘Orient Star F1’, and‘Summer Highland F1’. Seeds of the other hybrids started active germination on the 5–6 days after seeding. The highest yield of the cabbage heads was obtained from hybrids ‘Villi F1’ (31.7 t/ha) and ‘Sprinkin F1’ (28.7 t/ha), which was 10.0 and 7.0 t/ha more than in the control variant. The yield of ‘Summer Highland F1’ was 24.9 t/ha and ‘Suprin F1’ 24.6 t/ha. Under the conditions of unstable soil moisture, hybrids ‘Villi F1’and ‘Sprinkin F1’ appeared the most productive and ensured yield increase of 10.0 t/ha and 7.0 t/ha, respectively, compared to the control; and crop commercial quality was high. The highest percentage of dry matter (DM) content was in ‘Summer Highland F1’ (6.2%) followed by ‘Sprinkin F1’ (5.9%), which was 1.1% and 0.8% more than in the control. There was no significant difference between the values of the total sugars content over the variants. They ranged between 1.7 and 2.1%, which was similar to the control values. The content of nitrates in the cabbage heads of the studied Chinese cabbage hybrids was within the tolerance limit and amounted to 600 mg/kg (raw mass). Conclusions. Phenological observations of plant development and their biometric indices, depending on the varietal characteristics, indicate that under the conditions of unstable soil moisture, hybrids ‘Villi F1’ and ‘Sprinkin F1’ were more yielding and ensured yield increase of 10.0 t/ha and 7.0 t/ha, respectively, compared to the control. The crop commercial quality was high. The long growing season of ‘Richi F1’ (93 days) did not affect the crop quality and yield and demonstrated the lowest productivity compared to the control and the other experiment variants.

Purpose. To study the economic and biological characteristics and to reveal the genetic potential of various hybrids of Chinese cabbage depending on the climatic zone of cultivation. Methods. In the experiment, hybrids of Chinese cabbage ‘Pioner F1’ (control), ‘Villi F1’, ‘Manoko F1’, ‘Orient Star F1’, ‘Vitimo F1’, ‘Sprinkin F1’, ‘Summer Highland F1’, ‘Suprin F1’, and ‘Richi F1’ were evaluated. The experiment was laid out in a randomized block design with four replications with a single plot area of 21 m2. The container seedlings (40 days old) were planted in the middle of April according to the scheme 70 cm by 25 cm. Results. Having been planted at the same time, seed germination over the studied hybrids was not simultaneous. The first sprouted seeds (4 days after seeding) belonged to hybrids ‘Villi F1’, ‘Manoko F1’, ‘Orient Star F1’, and‘Summer Highland F1’. Seeds of the other hybrids started active germination on the 5–6 days after seeding. The highest yield of the cabbage heads was obtained from hybrids ‘Villi F1’ (31.7 t/ha) and ‘Sprinkin F1’ (28.7 t/ha), which was 10.0 and 7.0 t/ha more than in the control variant. The yield of ‘Summer Highland F1’ was 24.9 t/ha and ‘Suprin F1’ 24.6 t/ha. Under the conditions of unstable soil moisture, hybrids ‘Villi F1’and ‘Sprinkin F1’ appeared the most productive and ensured yield increase of 10.0 t/ha and 7.0 t/ha, respectively, compared to the control; and crop commercial quality was high. The highest percentage of dry matter (DM) content was in ‘Summer Highland F1’ (6.2%) followed by ‘Sprinkin F1’ (5.9%), which was 1.1% and 0.8% more than in the control. There was no significant difference between the values of the total sugars content over the variants. They ranged between 1.7 and 2.1%, which was similar to the control values. The content of nitrates in the cabbage heads of the studied Chinese cabbage hybrids was within the tolerance limit and amounted to 600 mg/kg (raw mass). Conclusions. Phenological observations of plant development and their biometric indices, depending on the varietal characteristics, indicate that under the conditions of unstable soil moisture, hybrids ‘Villi F1’ and ‘Sprinkin F1’ were more yielding and ensured yield increase of 10.0 t/ha and 7.0 t/ha, respectively, compared to the control. The crop commercial quality was high. The long growing season of ‘Richi F1’ (93 days) did not affect the crop quality and yield and demonstrated the lowest productivity compared to the control and the other experiment variants.

Цель. Исследовать хозяйственно-биологические особенности и раскрыть генетический потенциал различных гибридов капусты пекинской в зависимости от климатической зоны выращивания. Методы. Вариантами опыта были гибриды капусты пекинской ‘Pioner F1’ (контроль), ‘Vili F1’, ‘Manoko F1’, ‘Orient Star F1’, ‘Vitimo F1’, ‘Sprinkin F1’, ‘Summer Highland F1’, ‘Suprin F1’, ‘Richi F1’. Площадь учетного участка 21 м2. Опыт закладывался в четырех повторениях, исследуемые варианты размещали методом рендомизированных блоков. Кассетную рассаду в возрасте 40 суток высаживали во второй декаде апреля по схеме 70 × 25 см. Результаты. В один срок посева у гибридов всходы появлялись не одновременно и первые отмечены у гибридов ‘Vili F1’, ‘Manoko F1’, ‘Orient Star F1’ и ‘Summer Highland F1’ – на 4 сутки после посева, а в остальных – массовые всходы наблюдались несколько позже, на 5–6 сутки после посева. Самый высокий товарный урожай головок получили у гибридов ‘Vili F1’ (31,7 т/га) и ‘Sprinkin F1’ (28,7 т/га), что на 10,0 и 7,0 т/га больше, чем в контроле. Существенно ниже была урожайность у гибридов ‘Summer Highland F1’ – 24,9 и ‘Suprin F1’ – 24,6 т/га. В условиях неустойчивого увлажнения более урожайными были гиб­риды ‘Vili F1’ и ‘Sprinkin F1’, которые обеспечили прирост урожая к контролю 10,0 и 7,0 т/га, а продукция имела высокое товарное качество. Самый высокий процент сухих растворимых веществ установлен в головках гибридов ‘Summer Highland F1’ (6,2%) и ‘Sprinkin F1’ (5,9%), что на 1,1 и 0,8% больше контроля. По сумме сахаров не отмечено существенной разницы между вариантами, данный показатель был на уровне контроля (1,7–2,1%). Содержание нитратов в головках исследуемых гибридов капусты пекинской было в пределах допустимой нормы 600 мг/кг сырой массы. Выводы. Фенологические наблюдения за развитием растений и их биометрические показатели в зависимости от сортовых особенностей указывают, что в условиях неустойчивого увлажнения более урожайными были гибриды ‘Vili F1’ и ‘Sprinkin F1’, которые обеспечили прирост урожая к контролю 10,0 и 7,0 т/га, а продукция была высокого товарного качества. Длительный период вегетации у гибрида ‘Richi F1’ – 93 суток не повлиял на качество и урожайность культуры и обеспечил низкие показатели относительно контрольного и исследуемых вариантов. | Мета. Дослідити господарсько-біологічні особливості та розкрити генетичний потенціал різних гібридів капусти пекінської залежно від кліматичної зони вирощування.Методи. Варіантами досліду були гібриди капусти пекінської ‘Pioner F1’ (контроль), ‘Vili F1’, ‘Manoko F1’, ‘Orient Star F1’, ‘Vitimo F1’, ‘Sprinkin F1’, ‘Summer Highland F1’, ‘Suprin F1’, ‘Richi F1’. Площа облікової ділянки 21 м2. Дослід закладався в чотирьох повтореннях, досліджувані варіанти розміщували методом рендомізованих блоків. Касетну розсаду віком 40 діб висаджували в другій декаді квітня за схемою 70 × 25 см.Результати. За одного строку сівби у гібридів сходи з’являлись неодночасно і перші відмічено у гібридів ‘Vili F1’, ‘Manoko F1’, ‘Orient Star F1’та ‘Summer Highland F1’ – на 4 добу після сівби, а у решти – масові сходи спостерігали дещо пізніше, на 5–6 добу після сівби. Найвищий товарний врожай головок одержали у гібридів ‘Vili F1’ (31,7 т/га) та ‘Sprinkin F1’ (28,7 т/га), що на 10,0 і 7,0 т/га більше, ніж у контролі. Істотно нижчою була врожайність у гібридів ‘Summer Highland F1’ – 24,9 і ‘Suprin F1’ – 24,6 т/га. В умовах нестійкого зволоження врожайнішими були гібриди ‘Vili F1’та ‘Sprinkin F1’, які забезпечили приріст урожаю до контролю 10,0 і 7,0 т/га, а продукція була високої товарної якості. Найвищий відсоток сухих розчинних речовин був у головках гібридів ‘Summer Highland F1’ (6,2%) і ‘Sprinkin F1’ (5,9%), що на 1,1 і 0,8% більше за контроль. За сумою цукрів не відмічено істотної різниці між варіантами, даний показник був на рівні контролю (1,7–2,1%). Уміст нітратів у головках досліджуваних гібридів капусти пекінської був у межах допустимої норми – 600 мг/кг сирої маси.Висновки. Фенологічні спостереження за розвитком рослин та їхні біометричні показники залежно від сортових особливостей вказують, що в умовах нестійкого зволоження врожайнішими були гібриди ‘Vili F1’та ‘Sprinkin F1’, які забезпечили приріст урожаю до контролю 10,0 і 7,0 т/га, а продукція була високої товарної якості. Тривалий період вегетації у гібриду ‘Richi F1’– 93 доби, не вплинув на якість і врожайність та забезпечив найнижчі показники відносно контрольного і досліджуваних варіантів. | Purpose. To study the economic and biological characteristics and to reveal the genetic potential of various hybrids of Chinese cabbage depending on the climatic zone of cultivation.Methods. In the experiment, hybrids of Chinese cabbage ‘Pioner F1’ (control), ‘Villi F1’, ‘Manoko F1’, ‘Orient Star F1’, ‘Vitimo F1’, ‘Sprinkin F1’, ‘Summer Highland F1’, ‘Suprin F1’, and ‘Richi F1’ were evaluated. The experiment was laid out in a randomized block design with four replications with a single plot area of 21 m2. The container seedlings (40 days old) were planted in the middle of April according to the scheme 70 cm by 25 cm.Results. Having been planted at the same time, seed germination over the studied hybrids was not simultaneous. The first sprouted seeds (4 days after seeding) belonged to hybrids ‘Villi F1’, ‘Manoko F1’, ‘Orient Star F1’, and‘Summer Highland F1’. Seeds of the other hybrids started active germination on the 5–6 days after seeding. The highest yield of the cabbage heads was obtained from hybrids ‘Villi F1’ (31.7 t/ha) and ‘Sprinkin F1’ (28.7 t/ha), which was 10.0 and 7.0 t/ha more than in the control variant. The yield of ‘Summer Highland F1’ was 24.9 t/ha and ‘Suprin F1’ 24.6 t/ha. Under the conditions of unstable soil moisture, hybrids ‘Villi F1’and ‘Sprinkin F1’ appeared the most productive and ensured yield increase of 10.0 t/ha and 7.0 t/ha, respectively, compared to the control; and crop commercial quality was high. The highest percentage of dry matter (DM) content was in ‘Summer Highland F1’ (6.2%) followed by ‘Sprinkin F1’ (5.9%), which was 1.1% and 0.8% more than in the control. There was no significant difference between the values of the total sugars content over the variants. They ranged between 1.7 and 2.1%, which was similar to the control values. The content of nitrates in the cabbage heads of the studied Chinese cabbage hybrids was within the tolerance limit and amounted to 600 mg/kg (raw mass).Conclusions. Phenological observations of plant development and their biometric indices, depending on the varietal characteristics, indicate that under the conditions of unstable soil moisture, hybrids ‘Villi F1’ and ‘Sprinkin F1’ were more yielding and ensured yield increase of 10.0 t/ha and 7.0 t/ha, respectively, compared to the control. The crop commercial quality was high. The long growing season of ‘Richi F1’ (93 days) did not affect the crop quality and yield and demonstrated the lowest productivity compared to the control and the other experiment variants.

Purpose. Development of scientific and applied foundations for the introduction, selection and use of plants of the species of the genus Physalis L. to ensure food security in Ukraine. Methods. Subject of study – plants of the genus Physalis. The study was conducted in 2014–2018. on the introduction plots of the department of cultural flora of the M. M. Hryshko National Botanical Garden, NAS of Ukraine (NBG). The work used general scientific and special methods: field, introduction, biological and morphological; laboratory (chemical, biochemical), statistical (methods of analysis of variance and statistical estimation of average data using Microsoft Excel (2010). Results. The features of ontomorphogenesis were established, the biological and morphological parameters of plants of the species of the genus Physalis L. were investigated under conditions of introduction in the Right-Bank Forest-Steppe Ukraine. It was found that the content of dry matter in plant fruits varied from 10 to 18.34%, sugars – from 39.34 to 67.97%, tannins – 1.57 to 3.35% and carotene – from 0.200 to 0.583%, ascorbic acid – from 123.91 to 284.95 mg/100 g, depending on the species, varietal and shape characteristics. Conclusions. It was found that the introduced plant species of the genus Physalis in conditions of culture have four age periods and 10 developmental states: seeds (se), sprouts (p), juvenile (j), immature (im), virginal (v), generative (g), subsenilny (ss) and senile (se). Ph. ixocarpa ‘Likhtaryk’ of the NBG selection was distinguished among the studied introduced species in terms of biological and morphological parameters and biochemical composition. The obtained data can be used for further research and determining the prospects for the introduction of these introduced species into a wide culture

Purpose. Development of scientific and applied foundations for the introduction, selection and use of plants of the species of the genus Physalis L. to ensure food security in Ukraine. Methods. Subject of study – plants of the genus Physalis. The study was conducted in 2014–2018. on the introduction plots of the department of cultural flora of the M. M. Hryshko National Botanical Garden, NAS of Ukraine (NBG). The work used general scientific and special methods: field, introduction, biological and morphological; laboratory (chemical, biochemical), statistical (methods of analysis of variance and statistical estimation of average data using Microsoft Excel (2010). Results. The features of ontomorphogenesis were established, the biological and morphological parameters of plants of the species of the genus Physalis L. were investigated under conditions of introduction in the Right-Bank Forest-Steppe Ukraine. It was found that the content of dry matter in plant fruits varied from 10 to 18.34%, sugars – from 39.34 to 67.97%, tannins – 1.57 to 3.35% and carotene – from 0.200 to 0.583%, ascorbic acid – from 123.91 to 284.95 mg/100 g, depending on the species, varietal and shape characteristics. Conclusions. It was found that the introduced plant species of the genus Physalis in conditions of culture have four age periods and 10 developmental states: seeds (se), sprouts (p), juvenile (j), immature (im), virginal (v), generative (g), subsenilny (ss) and senile (se). Ph. ixocarpa ‘Likhtaryk’ of the NBG selection was distinguished among the studied introduced species in terms of biological and morphological parameters and biochemical composition. The obtained data can be used for further research and determining the prospects for the introduction of these introduced species into a wide culture

Purpose. Provide bioinformatic analysis and comparison of target regions of the acetolactate synthase (als) gene in several members of the Poaceae family and, on the basis of the obtained data, explore the possibility of creating a unified genetic construct for als gene editing using the CRISPR-Cas9 system. Methods. The als gene sequences of various members of the Poaceae family were obtained from the NCBI: Nucleotide database. For comparison, a fragment of the imi-2 gene of wheat of the soft line ‘TealIMI11A’ was used in two regions of the 367–390 and 1729–1749 nucleotide sequences. The Sequence Viewer 3.37.0 tool was used to assess the presence of nucleotide substitutions in the working sequence of the imi-2 gene. The dendrogram was built using the “Blast Tree” tool from the NCBI: Blast: Nucleotide resource. Results. A comparative analysis of the nucleotide sequences of seven different species was carried out: soft wheat (Triticum aestivum L.), common wild oat (Avena fatua L.), barley (Hordeum vulgare L.), Asian rice (Oryza sativa L.), maize (Zea mays L.), aleppo grass (Sorghum halepense Pers.) and Tausch’s goatgrass (Aegilops tauschii Coss.). The dendrogram is based on the gene sequence als, showed that all studied genotypes can be divided into two blocks: the first block included maize and aleppo grass, and the second block, a separate branch includes Asian rice and common wild oat, barley, soft wheat and Tausch’s goatgrass. 367–390 nucleotide sequences of soft wheat showed the highest 100% homology to Asian rice, Tausch’s goatgrass and common wild oat. The lowest homo­logy was for maize and aleppo grass at 83.3%. Evaluation of the nucleotide sequence 1729–1749 showed no complete homology at the 100% level. It was the highest for barley and Tausch’s goatgrass – 95.2%, and the lowest for rice, maize and aleppo grass – 80.9% each. Conclusions. The analysis confirms a significant degree of homology of the als gene sequence for various species of the Poaceae family, which allows us to create a universal genetic vector. However, taking into account the high degree of sequence homology for species such as soft wheat, Tausch’s goatgrass, barley, Asian rice and common wild oat, it can be assumed that the corresponding genetic vector can be used with the greatest efficiency to alter the als gene of these genotypes.

Purpose. Provide bioinformatic analysis and comparison of target regions of the acetolactate synthase (als) gene in several members of the Poaceae family and, on the basis of the obtained data, explore the possibility of creating a unified genetic construct for als gene editing using the CRISPR-Cas9 system.Methods. The als gene sequences of various members of the Poaceae family were obtained from the NCBI: Nucleotide database. For comparison, a fragment of the imi-2 gene of wheat of the soft line ‘TealIMI11A’ was used in two regions of the 367–390 and 1729–1749 nucleotide sequences. The Sequence Viewer 3.37.0 tool was used to assess the presence of nucleotide substitutions in the working sequence of the imi-2 gene. The dendrogram was built using the “Blast Tree” tool from the NCBI: Blast: Nucleotide resource. Results. A comparative analysis of the nucleotide sequences of seven different species was carried out: soft wheat (Triticum aestivum L.), common wild oat (Avena fatua L.), barley (Hordeum vulgare L.), Asian rice (Oryza sativa L.), maize (Zea mays L.), aleppo grass (Sorghum halepense Pers.) and Tausch’s goatgrass (Aegilops tauschii Coss.). The dendrogram is based on the gene sequence als, showed that all studied genotypes can be divided into two blocks: the first block included maize and aleppo grass, and the second block, a separate branch includes Asian rice and common wild oat, barley, soft wheat and Tausch’s goatgrass. 367–390 nucleotide sequences of soft wheat showed the highest 100% homology to Asian rice, Tausch’s goatgrass and common wild oat. The lowest homo­logy was for maize and aleppo grass at 83.3%. Evaluation of the nucleotide sequence 1729–1749 showed no complete homology at the 100% level. It was the highest for barley and Tausch’s goatgrass – 95.2%, and the lowest for rice, maize and aleppo grass – 80.9% each.Conclusions. The analysis confirms a significant degree of homology of the als gene sequence for various species of the Poaceae family, which allows us to create a universal genetic vector. However, taking into account the high degree of sequence homology for species such as soft wheat, Tausch’s goatgrass, barley, Asian rice and common wild oat, it can be assumed that the corresponding genetic vector can be used with the greatest efficiency to alter the als gene of these genotypes. | Цель. Провести биоинформатический анализ и сравнить целевые участки гена ацетолактат синтазы (als) у нескольких представителей семейства Злаковых и на основе полученных данных исследовать возможность создания унифицированной генетической конструкции для направленного изменения гена als с помощью системы CRISPR-Cas9.Методы. Сиквенсы гена als различных представителей семейства Злаковых были получены из базы данных NCBI: Nucleotide. Для сравнения был использован фрагмент гена imi-2 пшеницы мягкой линии ‘TealIMI11A’ в двух участках сиквенса 367–390 и 1729–1749 нуклеотидов. Для оценки наличия нуклеотидных замен в рабочих сиквенсах гена imi-2 использовали инструмент ‘Sequence Viewer 3.37.0’. Дендрограмму строили с использованием инструмента “Blast Tree” с ресурса NCBI: Blast: Nucleotide. Результаты. Был проведен сравнительный анализ нуклео­тидных последовательностей семи различных видов: пшеницы мягкой (Triticum aestivum L.), овсюга обыкновенного (Avena fatua L.), ячменя обыкновенного (Hordeum vulgare L.), риса посевного (Oryza sativa L.), кукурузы (Zea mays L.), сорго алепского (Sorghum halepense Pers.) и эгилопса Тауша (Aegilops tauschii Coss.). На основе сравнительного анализа сиквенса участков гена іmi-2 для 7-ми генотипов построили филогенетическое дерево, которое показало, что исследованные виды можно разделить на два блока. В первый блок вошли кукуруза и сорго алеппское, а ко второму блоку – рис посевной, овсюг обыкновенный, ячмень обыкновенный, пшеница мягкая и эгилопс Тауша. Определение степени гомологии между последовательностью 367–390 нуклеотида пшеницы мягкой и другими видами показала, что абсолютной была гомология с соответствующими последовательностями риса посевного, эгилопса Тауша и овсюга обыкновенного (100%). Наименьшим нуклеотидное родство оказалось для кукурузы и сорго алеппского – по 83,3%. На участке 1729–1749 нук­леотидов гена іmi-2 никакой из 6 сиквенсов не показал 100% гомологии с последовательностью пшеницы мягкой. Самой высокой она была для ячменя обыкновенного и эгилопса Тауша – 95,2%, а наименьшей для риса посевного, кукурузы и сорго алеппского – по 80,9%.Выводы. Проведенный анализ подтверждает значительную степень гомологии последовательности гена als для различных видов семейства Злаковых. Это позволяет допустить возможность создания универсальной генетической конструкции, с помощью которой можно осуществлять редактирование генома и получения растений, устойчивых к гербициду разных представителей этой семьи. Учитывая высокую степень гомологии последовательностей для таких видов как пшеница мягкая, эгилопс Тауша, ячмень обыкновенный, рис посевной и овсюг обыкновенный, можно предположить, что с наибольшей эффективностью соответствующая генетическая конструкция может быть использована для редактирования гена als именно этих генотипов. | Провести біоінформатичний аналіз та порівняти цільові ділянки гена ацетолактат синтази (als) у декількох представників родини Злакових і на основі отриманих даних дослідити можливість створення уніфікованої генетичної конструкції для направленого редагування гена als за допомогою системи CRISPR-Cas9. Методи. Сиквенси гена als різних представників родини Злакових було отримано з бази даних NCBI: Nucleotide. Для порівняння було використано фрагмент гена іmi-2 пшениці м’якої лінії ‘TealIMI11A’ у двох ділянках сиквенсу: 367–390 та 1729–1749 нук­леотидів. Для оцінювання наявності нуклеотидних замін в робочих сиквенсах гена іmi-2 використовували інструмент “SequenceViewer 3.37.0”. Дендрограму будували з використанням інструменту ‘BlastTree’ з ресурсу NCBI: Blast: Nucleotide. Результати. Було проаналізовано нуклеотидні послідовності сімох різних видів: пшениці м’якої (TriticumaestivumL.), вівсюга звичайного (AvenafatuaL.), ячменю звичайного (HordeumvulgareL.), рису посівного (OryzasativaL.), кукурудзи (ZeamaysL.), сорго алепського (SorghumhalepensePers.) та егілопса Тауша (AegilopstauschiiCoss.). На основі порівняльного аналізу сиквенсу ділянок гена іmi-2 для 7-ми генотипів було побудовано філогенетичне дерево, яке показало, що досліджені види можна поділити на два блоки. До одного з них увійшли кукурудза та сорго алепське, а до другого – рис посівний, вівсюг звичайний, ячмінь звичайний, пшениця м’яка та егілопс Тауша. Визначення ступеня гомології між послідовністю 367–390 нуклеотиду пшениці м’якої та іншими видами показало, що абсолютною була гомологія з відповідними послідовностями рису посівного, егілопса Тауша та вісюга звичайного (100%). Найменшою нуклеотидна спорідненість виявилась для кукурудзи та сорго алепського – 83,3%. У ділянці 1729–1749 нуклеотидів гена іmi-2 жоден з 6 сиквенсів не показав 100% гомології з послідовністю пшениці м’якої. Найвищою вона була до ячменю звичайного та егілопсу Тауша – 95,2%, а найменшою для рису посівного, кукурудзи та сорго алепського – по 80,9%. Висновки. Проведений аналіз підтверджує значний ступінь гомології послідовності гена als для різних видів родини Злакових. Це дозволяє зробити припущення про можливість створення універсальної генетичної конструкції, за допомогою якої можна редагувати геном та отримувати рослини, стійкі до гербіцидів різних представників цієї родини. Зважаючи на вищий ступінь гомології послідовностей для таких видів як пшениця м’яка, егілопс Тауша, ячмінь звичайний, рис посівний та вівсюг звичайний, можна припустити, що ефективнішою відповідна генетична конструкція буде для редагування гена als саме цих генотипів.

Purpose. Provide bioinformatic analysis and comparison of target regions of the acetolactate synthase (als) gene in several members of the Poaceae family and, on the basis of the obtained data, explore the possibility of creating a unified genetic construct for als gene editing using the CRISPR-Cas9 system. Methods. The als gene sequences of various members of the Poaceae family were obtained from the NCBI: Nucleotide database. For comparison, a fragment of the imi-2 gene of wheat of the soft line ‘TealIMI11A’ was used in two regions of the 367–390 and 1729–1749 nucleotide sequences. The Sequence Viewer 3.37.0 tool was used to assess the presence of nucleotide substitutions in the working sequence of the imi-2 gene. The dendrogram was built using the “Blast Tree” tool from the NCBI: Blast: Nucleotide resource. Results. A comparative analysis of the nucleotide sequences of seven different species was carried out: soft wheat (Triticum aestivum L.), common wild oat (Avena fatua L.), barley (Hordeum vulgare L.), Asian rice (Oryza sativa L.), maize (Zea mays L.), aleppo grass (Sorghum halepense Pers.) and Tausch’s goatgrass (Aegilops tauschii Coss.). The dendrogram is based on the gene sequence als, showed that all studied genotypes can be divided into two blocks: the first block included maize and aleppo grass, and the second block, a separate branch includes Asian rice and common wild oat, barley, soft wheat and Tausch’s goatgrass. 367–390 nucleotide sequences of soft wheat showed the highest 100% homology to Asian rice, Tausch’s goatgrass and common wild oat. The lowest homo­logy was for maize and aleppo grass at 83.3%. Evaluation of the nucleotide sequence 1729–1749 showed no complete homology at the 100% level. It was the highest for barley and Tausch’s goatgrass – 95.2%, and the lowest for rice, maize and aleppo grass – 80.9% each. Conclusions. The analysis confirms a significant degree of homology of the als gene sequence for various species of the Poaceae family, which allows us to create a universal genetic vector. However, taking into account the high degree of sequence homology for species such as soft wheat, Tausch’s goatgrass, barley, Asian rice and common wild oat, it can be assumed that the corresponding genetic vector can be used with the greatest efficiency to alter the als gene of these genotypes.

Purpose. Analysis of the allelic state of Ppd-1 genes, which control sensitivity to photoperiod, in varieties and lines of bread winter wheat, and comparison of the results obtained with field observations on the duration of periods before heading and flowering, whose originators were the Nosivska Breeding and Research Station of the V. M. Remeslo Myronivka Institute of Wheat National Academy of Agrarian Sciences of Ukraine and Poltava State Agrarian Academy of the Ministry of Education and Science of Ukraine. Methods. The following methods were used in the work: DNA extraction, allele-specific PCR, agarose and polyacrylamide gel electrophoresis, analysis of variance. Results. It was revealed that ‘Yuvivata 60’ variety has a recessive Ppd-1 genotype and belongs to the III haplotype by a combination of mutations in the structure of Ppd-D1 gene. Line ‘L41/95’ was heterogeneous by alleles of Ppd-D1 gene, which corresponded to the presence of haplotypes III and VII. All other tested cultivars and lines were characterized by alleles Ppd-A1b, Ppd-B1b and Ppd-D1a, and assigned to haplotype VII. According to the results of statistical data processing, the duration of the period from May, 1 to heading was the smallest for the variety ‘Donskaya polukarlikovaya’ in the conditions of both the Forest-Steppe and Polissia-Forest-Steppe regions of Ukraine, the longest – in the varieties ‘Yuvivata 60’, ‘Myronivska 61’ and ‘L41/95’. The differences between these groups were significant and amounted to 10 days. Conclusions. A breeding material with a high adaptive ability for growing conditions in Polissia-Forest-Steppe zone was studied by the allelic state of the Ppd-1 genes. A low level of polymorphism in the studied varieties and lines was revealed by the alleles of Ppd-1 genes [12.5% – Ppd-D1b (²²²), 12.5% – Ppd-D1à/b (²²²/VII), 75% – Ppd-D1a (VII)], that agrees with the hypothesis that breeders gave a greater preference for the photoperiod-insensitive wheat genotype under Ukrainian conditions. The genotypes with the dominant Ppd-D1a (VII) gene almost completely dominate in the south of Ukraine. At the same time, in northern latitudes, weather conditions negate the advantages of the genotypes with Ppd-D1a gene

Purpose. Analysis of the allelic state of Ppd-1 genes, which control sensitivity to photoperiod, in varieties and lines of bread winter wheat, and comparison of the results obtained with field observations on the duration of periods before heading and flowering, whose originators were the Nosivska Breeding and Research Station of the V. M. Remeslo Myronivka Institute of Wheat National Academy of Agrarian Sciences of Ukraine and Poltava State Agrarian Academy of the Ministry of Education and Science of Ukraine.Methods. The following methods were used in the work: DNA extraction, allele-specific PCR, agarose and polyacrylamide gel electrophoresis, analysis of variance.Results. It was revealed that ‘Yuvivata 60’ variety has a recessive Ppd-1 genotype and belongs to the III haplotype by a combination of mutations in the structure of Ppd-D1 gene. Line ‘L41/95’ was heterogeneous by alleles of Ppd-D1 gene, which corresponded to the presence of haplotypes III and VII. All other tested cultivars and lines were characterized by alleles Ppd-A1b, Ppd-B1b and Ppd-D1a, and assigned to haplotype VII. According to the results of statistical data processing, the duration of the period from May, 1 to heading was the smallest for the variety ‘Donskaya polukarlikovaya’ in the conditions of both the Forest-Steppe and Polissia-Forest-Steppe regions of Ukraine, the longest – in the varieties ‘Yuvivata 60’, ‘Myronivska 61’ and ‘L41/95’. The differences between these groups were significant and amounted to 10 days.Conclusions. A breeding material with a high adaptive ability for growing conditions in Polissia-Forest-Steppe zone was studied by the allelic state of the Ppd-1 genes. A low level of polymorphism in the studied varieties and lines was revealed by the alleles of Ppd-1 genes [12.5% – Ppd-D1b (²²²), 12.5% – Ppd-D1à/b (²²²/VII), 75% – Ppd-D1a (VII)], that agrees with the hypothesis that breeders gave a greater preference for the photoperiod-insensitive wheat genotype under Ukrainian conditions. The genotypes with the dominant Ppd-D1a (VII) gene almost completely dominate in the south of Ukraine. At the same time, in northern latitudes, weather conditions negate the advantages of the genotypes with Ppd-D1a gene | Мета. Визначення алельного стану генів Ppd-1, що контролюють чутливість до фотоперіоду, у сортів та ліній пшениці м’якої озимої Носівської селекційно-дослідної станції Миронівського інституту пшениці ім. В. М. Ремесла НААН (НСДС МІП) і Полтавської державної аграрної академії МОН України (ПДАА), та зіставлення отриманих результатів молекулярно-генетичного аналізу з даними польових спостережень щодо строків колосіння та цвітіння.Методи. Виділення ДНК, алель-специфічна ПЛР, електрофорез фрагментів ампліфікації в агарозних та полі­акриаламідних гелях, дисперсійний аналіз.Результати. Визначено, що сорт ‘Ювівата 60’ має рецесивний генотип Ppd-1 та належить до ІІІ гаплотипу за комбінацією мутацій у структурі Ppd-D1 гена. Лінія ‘Л41/95’ виявилася гетерогенною за алелями гена Ppd-D1, що відповідало наявності гаплотипів III і VII. Усі інші досліджені зразки характеризувалися алелями Ppd-A1b, Ppd-B1b та Ppd-D1а та належали до гаплотипу VII. За результатами статистичної обробки даних тривалість періоду від першого травня до колосіння була найменшою в сорту ‘Донская полукарликовая’ в умовах як Лісостепу, так і Полісся–Лісостепу Ук­раїни, найбільшою – у сортів ‘Ювівата 60’, ‘Миронівська 61’ та лінії ‘Л41/95’. Відмінності між зазначеними групами були достовірними й становили приблизно 10 діб.Висновки. За алельним станом генів Ppd-1 досліджено селекційний матеріал з високою адаптивною здатністю для умов вирощування в перехідній зоні Полісся–Лісостеп. За алелями генів Ppd-1 досліджені сорти та лінії виявили невисокий рівень поліморфізму [12,5% – Ppd-D1b (ІІІ), 12,5% – Ppd-D1а/b (ІІІ/VII), 75% – Ppd-D1a (VII)], що узгоджується з гіпо­тезою надання селекціонерами більшої переваги слабкочутливим до фотоперіоду генотипам пшениці в умовах України. Генотипи з домінантним алелем Ppd-D1a (VII) в умовах Півдня України практично повністю домінують. Водночас у північніших широтах погодні умови нівелюють переваги, що мають генотипи з Ppd-D1a.

Purpose. Analysis of the allelic state of Ppd-1 genes, which control sensitivity to photoperiod, in varieties and lines of bread winter wheat, and comparison of the results obtained with field observations on the duration of periods before heading and flowering, whose originators were the Nosivska Breeding and Research Station of the V. M. Remeslo Myronivka Institute of Wheat National Academy of Agrarian Sciences of Ukraine and Poltava State Agrarian Academy of the Ministry of Education and Science of Ukraine. Methods. The following methods were used in the work: DNA extraction, allele-specific PCR, agarose and polyacrylamide gel electrophoresis, analysis of variance. Results. It was revealed that ‘Yuvivata 60’ variety has a recessive Ppd-1 genotype and belongs to the III haplotype by a combination of mutations in the structure of Ppd-D1 gene. Line ‘L41/95’ was heterogeneous by alleles of Ppd-D1 gene, which corresponded to the presence of haplotypes III and VII. All other tested cultivars and lines were characterized by alleles Ppd-A1b, Ppd-B1b and Ppd-D1a, and assigned to haplotype VII. According to the results of statistical data processing, the duration of the period from May, 1 to heading was the smallest for the variety ‘Donskaya polukarlikovaya’ in the conditions of both the Forest-Steppe and Polissia-Forest-Steppe regions of Ukraine, the longest – in the varieties ‘Yuvivata 60’, ‘Myronivska 61’ and ‘L41/95’. The differences between these groups were significant and amounted to 10 days. Conclusions. A breeding material with a high adaptive ability for growing conditions in Polissia-Forest-Steppe zone was studied by the allelic state of the Ppd-1 genes. A low level of polymorphism in the studied varieties and lines was revealed by the alleles of Ppd-1 genes [12.5% – Ppd-D1b (²²²), 12.5% – Ppd-D1à/b (²²²/VII), 75% – Ppd-D1a (VII)], that agrees with the hypothesis that breeders gave a greater preference for the photoperiod-insensitive wheat genotype under Ukrainian conditions. The genotypes with the dominant Ppd-D1a (VII) gene almost completely dominate in the south of Ukraine. At the same time, in northern latitudes, weather conditions negate the advantages of the genotypes with Ppd-D1a gene

Purpose. To determine the level of productivity of sunflower hybrids, their stability and plasticity for cultivation in the Left Bank Forest-Steppe of Ukraine. Methods. The field experiment was performed in the conditions of the Left-Bank Forest-Steppe of Ukraine in 2016–2018. The peculiarities of plant growth and development, formation of yield of hybrids ‘Ukrainskyi F1’ (k), ‘P64LL125’, ‘P63LE10’, ‘P64F50’, ‘P64F66’, ‘P63LL06’, ‘NK Konti’ (k), ‘NK Brio’, ‘P64LE99’, ‘Laskala’, ‘Kupava’. Yield plasticity was calculated and analyzed by the Ebergard – Russell method. Results. Over the years of research, the average yield of sunflower hybrids in the Left-Bank Forest-Steppe of Ukraine varied from 2.71 to 4.04 t/ha. The lowest yield was shown by the ‘Ukrainskyi F1’ hybrid – 2.42–3.05 t/ha, the highest ‘Laskala’ – 3.79–4.26 t/ha. It was determined that in the conditions of the Left-Bank Forest-Steppe, there is no absolute predominance of medium-ripe hybrids in terms of yield. Conclusions. According to the results of the analysis of yield plasticity of sunflower hybrids, it was determined that the group of samples with high yield plasticity includes ‘Ukrainskyi F1’, ‘P64F50’, ‘P64F66’, ‘NK Konti’, ‘NK Brio’, ‘P64LE99’, ‘Lascala’ and ‘Kupava’. They respond to the improvement of the level of agricultural technology and provide the maximum yield only under the conditions of optimal factors. Hybrids ‘P64LL125’, ‘P63LE10’ and ‘P63LL06’ are more stable in response to changes in growing conditions without reductions in yield. As for the shares of the influence of the studied factors, the yield of the hybrid ‘Ukrainskyi F1’ was most influenced by the conditions of the year, ‘NK Brio’ – the sowing rate. For the ‘NK Ferti’ hybrid, the conditions of the year and the sowing rate are equally important.

Purpose. To determine the level of productivity of sunflower hybrids, their stability and plasticity for cultivation in the Left Bank Forest-Steppe of Ukraine. Methods. The field experiment was performed in the conditions of the Left-Bank Forest-Steppe of Ukraine in 2016–2018. The peculiarities of plant growth and development, formation of yield of hybrids ‘Ukrainskyi F1’ (k), ‘P64LL125’, ‘P63LE10’, ‘P64F50’, ‘P64F66’, ‘P63LL06’, ‘NK Konti’ (k), ‘NK Brio’, ‘P64LE99’, ‘Laskala’, ‘Kupava’. Yield plasticity was calculated and analyzed by the Ebergard – Russell method. Results. Over the years of research, the average yield of sunflower hybrids in the Left-Bank Forest-Steppe of Ukraine varied from 2.71 to 4.04 t/ha. The lowest yield was shown by the ‘Ukrainskyi F1’ hybrid – 2.42–3.05 t/ha, the highest ‘Laskala’ – 3.79–4.26 t/ha. It was determined that in the conditions of the Left-Bank Forest-Steppe, there is no absolute predominance of medium-ripe hybrids in terms of yield. Conclusions. According to the results of the analysis of yield plasticity of sunflower hybrids, it was determined that the group of samples with high yield plasticity includes ‘Ukrainskyi F1’, ‘P64F50’, ‘P64F66’, ‘NK Konti’, ‘NK Brio’, ‘P64LE99’, ‘Lascala’ and ‘Kupava’. They respond to the improvement of the level of agricultural technology and provide the maximum yield only under the conditions of optimal factors. Hybrids ‘P64LL125’, ‘P63LE10’ and ‘P63LL06’ are more stable in response to changes in growing conditions without reductions in yield. As for the shares of the influence of the studied factors, the yield of the hybrid ‘Ukrainskyi F1’ was most influenced by the conditions of the year, ‘NK Brio’ – the sowing rate. For the ‘NK Ferti’ hybrid, the conditions of the year and the sowing rate are equally important.