Purpose. Determination of the possibility to diffe­rentia­te triticale samples by starch grain size and identify samples with a minimum size of granules that have a significant positive correlation with the efficiency of the starch transformation into ethanol. Methods. Light mic­roscopy of grinded triticale grains. Results. Analysis of the starch granule size in triticale samples was performed. The minimum average granule size was observed in line Kc-270/14 (23.78 µm), maximum one – in line KR-110/14 (28.06 µm). The size of starch granules in a soft winter wheat variety ‘Tsvit Kalyny’ was 24.2 µm that was within the values typical for winter triticale varieties and lines. The size of the majority of granules ranged from 15 to 35 µm, but their distribution was uneven in the studied lines. Conclusions. Considerable polymorphism of winter triticale for the starch granule size was established. It was found that the minimum average size of starch granules was observed in the samples characterized by minimum maximum size of granules, low frequency of granules of more than 35 µm, and therefore, minimum dispersion. Based on this, assumption can be made about the possibility to evaluate a sample for the presence of granules larger than 35 µm that can significantly reduce the number of measurements and speed up analysis.

Purpose. Determination of the possibility to diffe­rentia­te triticale samples by starch grain size and identify samples with a minimum size of granules that have a significant positive correlation with the efficiency of the starch transformation into ethanol. Methods. Light mic­roscopy of grinded triticale grains. Results. Analysis of the starch granule size in triticale samples was performed. The minimum average granule size was observed in line Kc-270/14 (23.78 µm), maximum one – in line KR-110/14 (28.06 µm). The size of starch granules in a soft winter wheat variety ‘Tsvit Kalyny’ was 24.2 µm that was within the values typical for winter triticale varieties and lines. The size of the majority of granules ranged from 15 to 35 µm, but their distribution was uneven in the studied lines. Conclusions. Considerable polymorphism of winter triticale for the starch granule size was established. It was found that the minimum average size of starch granules was observed in the samples characterized by minimum maximum size of granules, low frequency of granules of more than 35 µm, and therefore, minimum dispersion. Based on this, assumption can be made about the possibility to evaluate a sample for the presence of granules larger than 35 µm that can significantly reduce the number of measurements and speed up analysis.

Purpose. To study the influence of fractional composition of seed material on productive properties of spring rape seeds of the ‘Magnat’ variety and ‘MVM’ (‘Gladiator’) variety sample. Methods. Field investigations, laboratory tests, statistical analysis. Results. During 2013–2014, the influence of sown seeds of different size fractions (up to 2,5 g; 2,6–3,5 g; 3,6 g and more) on the indices of productivity of spring rape varie­ties was studied. It was found that over the years of study field germination of sown fractions of seeds in ‘Magnat’ variety averaged 83.5%, in ‘MSM’ variety sample – 86.7%. During the periods of seedling emergence and harvesting, the density of spring rape crops varied depending on relevant fraction of sown seeds. In the ‘Magnat’ variety, photosynthetic potential of crops ranged from 1.1 to 1.3 million m2/ha, in ‘MSM’ variety sample – from 1.2 to 1.6 million m2/ha. Depending on the seed fractions applied, ‘Magnat’ variety crops during the gro­wing season accumulated organic biomass from 2.05 to 2.36 g/m2 per day, ‘MSM’ sample variety – from 1.83 to 2.10 g/m2 per day. Conclusions. It was established that different fractions of spring rape seeds sown in the Northern Forest-Steppe zone of Ukraine affected the indices of germinating energy and laboratory germination, crop density formation, leaf surface area and intensity of photosynthesis process (crop photosynthetic potential, net photosynthesis performance). The highest indices of productivity and yield in the ‘Magnat’ variety was ensured by large-seeded fraction (3,6 g and more), in the ‘MVM’ (‘Gladia­tor’) sample variety – by small-seeded fraction (up to 2,5 g).

Purpose. To study the influence of fractional composition of seed material on productive properties of spring rape seeds of the ‘Magnat’ variety and ‘MVM’ (‘Gladiator’) variety sample. Methods. Field investigations, laboratory tests, statistical analysis. Results. During 2013–2014, the influence of sown seeds of different size fractions (up to 2,5 g; 2,6–3,5 g; 3,6 g and more) on the indices of productivity of spring rape varie­ties was studied. It was found that over the years of study field germination of sown fractions of seeds in ‘Magnat’ variety averaged 83.5%, in ‘MSM’ variety sample – 86.7%. During the periods of seedling emergence and harvesting, the density of spring rape crops varied depending on relevant fraction of sown seeds. In the ‘Magnat’ variety, photosynthetic potential of crops ranged from 1.1 to 1.3 million m2/ha, in ‘MSM’ variety sample – from 1.2 to 1.6 million m2/ha. Depending on the seed fractions applied, ‘Magnat’ variety crops during the gro­wing season accumulated organic biomass from 2.05 to 2.36 g/m2 per day, ‘MSM’ sample variety – from 1.83 to 2.10 g/m2 per day. Conclusions. It was established that different fractions of spring rape seeds sown in the Northern Forest-Steppe zone of Ukraine affected the indices of germinating energy and laboratory germination, crop density formation, leaf surface area and intensity of photosynthesis process (crop photosynthetic potential, net photosynthesis performance). The highest indices of productivity and yield in the ‘Magnat’ variety was ensured by large-seeded fraction (3,6 g and more), in the ‘MVM’ (‘Gladia­tor’) sample variety – by small-seeded fraction (up to 2,5 g).

Purpose. To estimate genetic resources collection of soft winter wheat plants (new collection accessions) of Ustymivka Experimental Station for Plant Production and select initial material for breeding of adaptive, productive and qualitative soft winter wheat varieties. Methods. Field experiment, laboratory testing. Results. The authors pre- sented results of study of over 1000 samples of gene pool of soft winter wheat from 25 countries during 2001–2005 in Ustymivka Experimental Station for Plant Production of Plant Production Institute nd. a. V. Ya. Yuriev, NAAS of Ukraine for a complex of economic traits. More than 400 new sources with high adaptive properties were selected that combine traits of high productivity and high quality of grain, early ripening, resistance to biotic and abiotic fac- tors (the assessment of samples for 16 valuable traits is given). The selected material comes from various agro-cli- matic zones, including zones of unsustainable agriculture. Conclusions. Recommended sources of traits that have breeding value will allow to enrich high-quality assortment of wheat and considerably accelerate breeding process du- ring development of new soft winter wheat varieties.

Purpose. To estimate genetic resources collection of soft winter wheat plants (new collection accessions) of Ustymivka Experimental Station for Plant Production and select initial material for breeding of adaptive, productive and qualitative soft winter wheat varieties. Methods. Field experiment, laboratory testing. Results. The authors pre- sented results of study of over 1000 samples of gene pool of soft winter wheat from 25 countries during 2001–2005 in Ustymivka Experimental Station for Plant Production of Plant Production Institute nd. a. V. Ya. Yuriev, NAAS of Ukraine for a complex of economic traits. More than 400 new sources with high adaptive properties were selected that combine traits of high productivity and high quality of grain, early ripening, resistance to biotic and abiotic fac- tors (the assessment of samples for 16 valuable traits is given). The selected material comes from various agro-cli- matic zones, including zones of unsustainable agriculture. Conclusions. Recommended sources of traits that have breeding value will allow to enrich high-quality assortment of wheat and considerably accelerate breeding process du- ring development of new soft winter wheat varieties.

Purpose. To create a multiplex system for identification glyphosate-tolerant sugar beet by using PCR. Methods. Molecular genetic analysis. Results. The article presents the results of studies to determine the parameters of the polymerase chain reaction (PCR) in order to develop a multiplex system for identification of the structural elements of the design of transgenic gene cp 4 epsps, which provides tole­rance to glyphosate. For amplicon target DNA sequences, the following values of temperature conditions of PCR were determined: step 1 (initial denaturation) 95 °C – 3 min; step 2 (specific reaction products accumulation): denaturation 95 °C – 45 s; hybridization of primers 55 °C – 50 s; elongation 72 °C – 1 min; number of cycles – 40; step 3 (final elongation) 72 °C – 6 min. A series of PCR were carried out for the purpose of selecting the optimal amount of DNA matrix for efficient estimate of transgenic sugar beet plants for the presence of specific sequences. Conclusions. To identify transgenic glyphosate-tolerant sugar beet, it is advisable to determine 35S promoter and gene cp 4 epsps in individual genotypes. It was found that during the selection of temperature parameters of multiplex reaction a 5 °C rise in primer hybridization temperature did not affect the identification of gene als that allowed to include specific primers for determination of this sequence as an internal control. Based on the results of test multiplex reactions, concentrations of dNTPs and Mg2+ ions were determined that allowed to exclude the possibility of non-specific fragments and false-negative results. The optimum amount of matrix DNA (100–150 ng) for an efficient estimate of transgenic sugar beet plants for the presence of specific sequences was determined. Obtained results allowed to develop a multiplex test system for identification of transgenic glyphosate-to­lerant sugar beet which can be used for simultaneous determination of the 35S promoter, cp 4 epsps gene and als gene as an internal reaction control.

Purpose. To create a multiplex system for identification glyphosate-tolerant sugar beet by using PCR. Methods. Molecular genetic analysis. Results. The article presents the results of studies to determine the parameters of the polymerase chain reaction (PCR) in order to develop a multiplex system for identification of the structural elements of the design of transgenic gene cp 4 epsps, which provides tole­rance to glyphosate. For amplicon target DNA sequences, the following values of temperature conditions of PCR were determined: step 1 (initial denaturation) 95 °C – 3 min; step 2 (specific reaction products accumulation): denaturation 95 °C – 45 s; hybridization of primers 55 °C – 50 s; elongation 72 °C – 1 min; number of cycles – 40; step 3 (final elongation) 72 °C – 6 min. A series of PCR were carried out for the purpose of selecting the optimal amount of DNA matrix for efficient estimate of transgenic sugar beet plants for the presence of specific sequences. Conclusions. To identify transgenic glyphosate-tolerant sugar beet, it is advisable to determine 35S promoter and gene cp 4 epsps in individual genotypes. It was found that during the selection of temperature parameters of multiplex reaction a 5 °C rise in primer hybridization temperature did not affect the identification of gene als that allowed to include specific primers for determination of this sequence as an internal control. Based on the results of test multiplex reactions, concentrations of dNTPs and Mg2+ ions were determined that allowed to exclude the possibility of non-specific fragments and false-negative results. The optimum amount of matrix DNA (100–150 ng) for an efficient estimate of transgenic sugar beet plants for the presence of specific sequences was determined. Obtained results allowed to develop a multiplex test system for identification of transgenic glyphosate-to­lerant sugar beet which can be used for simultaneous determination of the 35S promoter, cp 4 epsps gene and als gene as an internal reaction control.

Purpose. Review of the main achievements of the Wheat Breeding and Seed ProductionDepartment in the Plant Breeding and Genetic Institute – National Centre of Seed and Cultivar Investigation in the developing theoretical principles of breeding and creation of winter wheat varieties of different types during 100-year (1916–2016) period of breeding programs realization. Results. The main theoretical, methodical developments and breeding achievements of Wheat Breeding and Seed Production Department during 100-year (1916–2016) history have been considered. In the course of the Department activity, the research and metho­dology grounds of bread winter wheat breeding and seed production have been laid, 9 stages of breeding programs development have been accomplished. As a result, more than 130 varieties of different types have been created, 87 of them have been released in some periods or registered in the State registers of plants varieties of Ukraine and other countries and grown in the total sowing area about 220 million hectares.

Мета. Визначення генетичних ефектів ПЖТ 1AL.1RS і 1ВL.1RS на врожайність, елементи продуктивності рослин та показники якості рекомбінантних ліній, установлення ефективності використання кожної з ПЖТ для створення досконаліших за цими ознаками сортів пшениці м’якої озимої в умовах ґрунтово-повітряних посух у степовій зоні України та розроблення селекційних заходівів зменшення негативних ефектів транслокацій для отримання генотипів з високими показниками якості зерна цінної і сильної пшениці. Методи. Польові експерименти, внутрішньовидова гібридизація, оцінювання селекційного матеріалу в польових умовах, методи лабораторного визначення показників хлібопекарських якостей зерна, електрофорез запасних білків, статистичні. Результати. У посушливих умовах Півдня України на великому експериментальному матеріалі селекційного процесу виявлено позитивний вплив ПЖТ 1AL.1RS на врожайність рекомбінантних ліній та основні елементи продуктивності рослин, що проявляється на фоні одночасного позитивного ефекту цієї транслокації на посухо- й жаростійкість. Використання в селекції пшениці ПЖТ 1ВL.1RS у цьому регіоні є менш перспективним заходом. Установлено, що введення шляхом гібридизації в місцевий генофонд пшениці м’якої озимої пшенично-житніх транслокацій 1АL.1RS та 1ВL.1RS змінює показники якості зерна. Зокрема, вміст білка, зазвичай, має тенденцію до підвищення, при цьому він суттєвіше зростає завдяки транслокації 1ВL.1RS. Показано, що частота отримання рекомбінантних ліній, які поєднують високу врожайність та мають добрі хлібопекарські властивості не нижче цінних і сильних пшениць, досить низька (1,7–6,1%). Однак, переваги за цим показником мають інтрогресивні лінії з ПЖТ 1АL.1RS. Використовуючи комбінування в процесі гібридизації ПЖТ з алелями з високим позитивним впливом на хлібопекарські властивості, а також створюючи гетерогенність у складі генотипів з ПЖТ і без них, можна спрямовано зменшувати негативний вплив ПЖТ на якість зерна пшениці м’якої озимої і створювати сорти з параметрами якості цінних і сильних пшениць. Висновки. Отримані результати дають підстави стверджувати, що використання ПЖТ 1AL.1RS є перспективним напрямом подальшого селекційного нарощування генетичного потенціалу врожайності сортів пшениці м’якої озимої в посушливих умовах Півдня України. У результаті повного циклу селекційного процесу на матеріалі з ПЖТ 1АL.1RS, створена серія сортів пшениці м’якої озимої – ‘Житниця одеська’, ‘Октава одеська’, ‘Ліга одеська’, ‘Дума одеська’, ‘Версія одеська’, які забезпечують підвищення врожайності на 10–15% порівняно зі стандартами та занесені до Державних реєстрів сортів рослин України та Молдови. | Purpose. To determine the genetic effects of WRT 1AL.1RS and 1BL.1RS on the yield, plant productivity elements and quality indices of recombinant lines, to determine the effectiveness of using each of the WRT for creating more perfect varieties of soft winter wheat in these traits under soil-air drought in the steppe zone of Ukraine and development of breeding techniques to reduce the negative effects of translocation to produce genotypes with high quality indices of valuable and strong wheat grain. Methods. Field experiments, intraspecific hybridization, evaluation of breeding material in the field, methods of laboratory determination of baking quality indices of grain, electrophoresis of spare proteins, statistical. Results. Under arid conditions of the South of Ukraine on the large experimental material of breeding process, a positive effect of 1AL.1RS on the yield of recombinant lines and the main elements of plant productivity were determined, which was manifested against the background of simultaneous positive effect of this transposition on the drought and heat tolerance. The use of 1BL.1RS in wheat breeding in this region is less promising technique. It has been determined that introduction of 1AL.1RS, 1BL.1RS translocations into local gene pool of soft winter wheat by hybridization changes the grain quality indices. In particular, the protein content tends to increase more significantly under the influence of 1BL.1RS translocation. It has been shown that the frequency of obtaining recombinant lines which combine high yield and sufficient level of baking properties (not lower than valuable and strong wheat) is quite low (1,7–6,1%), but introgressive lines with 1AL.1RS have the advantages in this parameter. Using such genetic factors as hybridization combining WRT with alleles with high positive effect on baking properties, and also creating heterogeneity in the composition of genotypes with and without WRT, one can purposefully reduce the negative impact of WRT on the quality of soft winter wheat grain and create varieties with quality parameters of valuable and strong wheat. Conclusions. In general, the results achieved give reason to assert that the use of WRT 1AL.1RS is a promising direction for further breeding increase of genetic capacity of soft winter wheat varieties in the arid conditions of the South of Ukraine. As a result of full cycle of breeding process on the material with 1AL.1RS WRT a series of varieties of soft winter wheat ‘Zhytnytsia odeska’, ‘Oktava odeska’, ‘Liha odeska’, ‘Duma odeska’, ‘Versiia odeska’, providing 10 – 15% increase in yield to standards was created and included in the State Register of Ukraine and Moldova.

Мета. Визначення генетичних ефектів ПЖТ 1AL.1RS і 1ВL.1RS на врожайність, елементи продуктивності рослин та показники якості рекомбінантних ліній, установлення ефективності використання кожної з ПЖТ для створення досконаліших за цими ознаками сортів пшениці м’якої озимої в умовах ґрунтово-повітряних посух у степовій зоні України та розроблення селекційних заходівів зменшення негативних ефектів транслокацій для отримання генотипів з високими показниками якості зерна цінної і сильної пшениці. Методи. Польові експерименти, внутрішньовидова гібридизація, оцінювання селекційного матеріалу в польових умовах, методи лабораторного визначення показників хлібопекарських якостей зерна, електрофорез запасних білків, статистичні. Результати. У посушливих умовах Півдня України на великому експериментальному матеріалі селекційного процесу виявлено позитивний вплив ПЖТ 1AL.1RS на врожайність рекомбінантних ліній та основні елементи продуктивності рослин, що проявляється на фоні одночасного позитивного ефекту цієї транслокації на посухо- й жаростійкість. Використання в селекції пшениці ПЖТ 1ВL.1RS у цьому регіоні є менш перспективним заходом. Установлено, що введення шляхом гібридизації в місцевий генофонд пшениці м’якої озимої пшенично-житніх транслокацій 1АL.1RS та 1ВL.1RS змінює показники якості зерна. Зокрема, вміст білка, зазвичай, має тенденцію до підвищення, при цьому він суттєвіше зростає завдяки транслокації 1ВL.1RS. Показано, що частота отримання рекомбінантних ліній, які поєднують високу врожайність та мають добрі хлібопекарські властивості не нижче цінних і сильних пшениць, досить низька (1,7–6,1%). Однак, переваги за цим показником мають інтрогресивні лінії з ПЖТ 1АL.1RS. Використовуючи комбінування в процесі гібридизації ПЖТ з алелями з високим позитивним впливом на хлібопекарські властивості, а також створюючи гетерогенність у складі генотипів з ПЖТ і без них, можна спрямовано зменшувати негативний вплив ПЖТ на якість зерна пшениці м’якої озимої і створювати сорти з параметрами якості цінних і сильних пшениць. Висновки. Отримані результати дають підстави стверджувати, що використання ПЖТ 1AL.1RS є перспективним напрямом подальшого селекційного нарощування генетичного потенціалу врожайності сортів пшениці м’якої озимої в посушливих умовах Півдня України. У результаті повного циклу селекційного процесу на матеріалі з ПЖТ 1АL.1RS, створена серія сортів пшениці м’якої озимої – ‘Житниця одеська’, ‘Октава одеська’, ‘Ліга одеська’, ‘Дума одеська’, ‘Версія одеська’, які забезпечують підвищення врожайності на 10–15% порівняно зі стандартами та занесені до Державних реєстрів сортів рослин України та Молдови.

The morphological and agrobiological characteristics and qualities, the potential of the new registered winter wheat varieties, which are suitable for intensive technologies have been learned.

The expediency of winter wheat varieties examination in the state variety examination is proved at two levels of agricultural backgrounds: at high level - in the presence of intensive agro technologies and at low level, which is typical for majority of producers. Conclusions have been made under the expediency of improvement and making changes to the Guidelines on evaluation of varieties resistance to diseases and crop tillage with a help of retardants.

Purpose. Review of the main achievements of the Wheat Breeding and Seed ProductionDepartment in the Plant Breeding and Genetic Institute – National Centre of Seed and Cultivar Investigation in the developing theoretical principles of breeding and creation of winter wheat varieties of different types during 100-year (1916–2016) period of breeding programs realization. Results. The main theoretical, methodical developments and breeding achievements of Wheat Breeding and Seed Production Department during 100-year (1916–2016) history have been considered. In the course of the Department activity, the research and metho­dology grounds of bread winter wheat breeding and seed production have been laid, 9 stages of breeding programs development have been accomplished. As a result, more than 130 varieties of different types have been created, 87 of them have been released in some periods or registered in the State registers of plants varieties of Ukraine and other countries and grown in the total sowing area about 220 million hectares.

Purpose. Studying and identifying winter wheat varieties that are resistant to causal agents of major diseases and pests. Methods. Laboratory analysis, field study. Results. On artificial infection backgrounds of causal agents such varieties as ‘Smuhlianka’, ‘Svitanok Myronivskyi’, ‘Berehynia Myronіvska’, ‘Horlytsia Myronіvska’ have shown high level of resistance to brown rust; ‘Svitanok Myronivskyi’, ‘Berehynia Myronіvska’ – to powdery mildew; ‘Smuhlianka’ – to covered smut. Varieties ‘Voloshkova’, ‘Yuviliar Myronivskyi’, ‘Myrliena’, ‘Oberih Myronivskyi’, ‘Kolos Myronivschyny’, ‘Lehenda Myronivska’ had medium resistance to Septoria leaf blotch; ‘Smuhlianka’, ‘Myrliena’, ‘Oberih Myronivskyi’, ‘Berehynia Myronіvska’, ‘Horlytsia Myronіvska’, ‘Myronivska storichna’ – to Fusarium head blight; ‘Myronіvska 65’, ‘Smuhlianka’, ‘Lehenda Myronivska’, ‘Berehynia Myronіvska’ – to root rots. Among the varieties studied, there were those with group resistance to diseases: ‘Voloshkova’, ‘Myrliena’, ‘Yuviliar Myronivskyi’, ‘Oberih Myronivskyi’, ‘Bohdana’, ‘Myronivska storichna’, ‘Ekonomka’, ‘Svitanok Myronivskyi’, ‘Berehynia Myronіvska’, ‘Horlytsia Myronіvska’, ‘Smuhlianka’. Varieties bred at the V. M. Remeslo Myronivka Institute of Wheat are distinguished by pest resistance. During autumn tillering phase of winter wheat the smallest number of large cereal aphids was observed in varieties ‘Smuhlianka’ and ‘Myronivska storichna’, leafhoppers – in varieties ‘Smuhlianka’, ‘Myrliena’, ‘Yuviliar Myronivskyi’. The slight population of thrips in the phase of earing was marked in the variety ‘Kolos Myronivschyny’, in the milk-ripe stage the smallest number of larvae per ear was detected in varieties ‘Smuhlianka’, ‘Voloshkova’, ‘Kolos Myronivschyny’. Varieties ‘Lehenda Myronivska’ and ‘Smuhlianka’ were proved to be resistant to damages of stems by sawflies. It should be noted that ‘Smuhlianka’ variety shows resistance to aphids, leafhoppers and grain sawflies. Conclusions. It was established that winter wheat varieties bred at the V. M. Remeslo Myronivka Instutite of Wheat are characterized by resistance to certain causal agents, some of them – to their group. Varieties that are resistant to the most common and harmful phytophages were identified.

Purpose. Studying and identifying winter wheat varieties that are resistant to causal agents of major diseases and pests. Methods. Laboratory analysis, field study. Results. On artificial infection backgrounds of causal agents such varieties as ‘Smuhlianka’, ‘Svitanok Myronivskyi’, ‘Berehynia Myronіvska’, ‘Horlytsia Myronіvska’ have shown high level of resistance to brown rust; ‘Svitanok Myronivskyi’, ‘Berehynia Myronіvska’ – to powdery mildew; ‘Smuhlianka’ – to covered smut. Varieties ‘Voloshkova’, ‘Yuviliar Myronivskyi’, ‘Myrliena’, ‘Oberih Myronivskyi’, ‘Kolos Myronivschyny’, ‘Lehenda Myronivska’ had medium resistance to Septoria leaf blotch; ‘Smuhlianka’, ‘Myrliena’, ‘Oberih Myronivskyi’, ‘Berehynia Myronіvska’, ‘Horlytsia Myronіvska’, ‘Myronivska storichna’ – to Fusarium head blight; ‘Myronіvska 65’, ‘Smuhlianka’, ‘Lehenda Myronivska’, ‘Berehynia Myronіvska’ – to root rots. Among the varieties studied, there were those with group resistance to diseases: ‘Voloshkova’, ‘Myrliena’, ‘Yuviliar Myronivskyi’, ‘Oberih Myronivskyi’, ‘Bohdana’, ‘Myronivska storichna’, ‘Ekonomka’, ‘Svitanok Myronivskyi’, ‘Berehynia Myronіvska’, ‘Horlytsia Myronіvska’, ‘Smuhlianka’. Varieties bred at the V. M. Remeslo Myronivka Institute of Wheat are distinguished by pest resistance. During autumn tillering phase of winter wheat the smallest number of large cereal aphids was observed in varieties ‘Smuhlianka’ and ‘Myronivska storichna’, leafhoppers – in varieties ‘Smuhlianka’, ‘Myrliena’, ‘Yuviliar Myronivskyi’. The slight population of thrips in the phase of earing was marked in the variety ‘Kolos Myronivschyny’, in the milk-ripe stage the smallest number of larvae per ear was detected in varieties ‘Smuhlianka’, ‘Voloshkova’, ‘Kolos Myronivschyny’. Varieties ‘Lehenda Myronivska’ and ‘Smuhlianka’ were proved to be resistant to damages of stems by sawflies. It should be noted that ‘Smuhlianka’ variety shows resistance to aphids, leafhoppers and grain sawflies. Conclusions. It was established that winter wheat varieties bred at the V. M. Remeslo Myronivka Instutite of Wheat are characterized by resistance to certain causal agents, some of them – to their group. Varieties that are resistant to the most common and harmful phytophages were identified.

Purpose. To analyse the Ukrainian nomenclature of subtribe Malinae representatives and improve terminological system of the Ukrainian names of a species and a generic levels and names of fruit crops. Results. There is a confusion in the Ukrainian names of plants of Cydonia-Chaenomeles–Pseudocydonia, Mespilus–Eriobotrya, Amelanchier–Cotoneaster. Considering the division of Sorbus s.l. on separate genera Sorbus s.str., Aria, Cormus, Chamaemespilus, Torminalis and availability of numerous hybrids with their involvement, the Ukrainian names for both taxa and nothotaxa of species and generic levels are offered, principles of their choice are also considered. Formation of the Ukrainian generic names on the basis of specific epithets leads to undesirable tautonomy. Aspects of derussification of the Ukrainian professional terminology are discussed. Conclusions. Ukrainian scientific generic and nothogeneric plant names for subtribe Malinae are transliterated/transcripted, borrowed as a calque of latin names or have their own origin, consisting of one or two words. The choice of the best variants of generic and species names from a number of possible ones has a temporal component and largely depends on experts who apply them and basic principles of choice. It is necessary to improve the modern Ukrainian plant nomenclature on a national basis involving the transformed Latin scientific names for introduced species and hybrids.

Purpose. To analyse the Ukrainian nomenclature of subtribe Malinae representatives and improve terminological system of the Ukrainian names of a species and a generic levels and names of fruit crops. Results. There is a confusion in the Ukrainian names of plants of Cydonia-Chaenomeles–Pseudocydonia, Mespilus–Eriobotrya, Amelanchier–Cotoneaster. Considering the division of Sorbus s.l. on separate genera Sorbus s.str., Aria, Cormus, Chamaemespilus, Torminalis and availability of numerous hybrids with their involvement, the Ukrainian names for both taxa and nothotaxa of species and generic levels are offered, principles of their choice are also considered. Formation of the Ukrainian generic names on the basis of specific epithets leads to undesirable tautonomy. Aspects of derussification of the Ukrainian professional terminology are discussed. Conclusions. Ukrainian scientific generic and nothogeneric plant names for subtribe Malinae are transliterated/transcripted, borrowed as a calque of latin names or have their own origin, consisting of one or two words. The choice of the best variants of generic and species names from a number of possible ones has a temporal component and largely depends on experts who apply them and basic principles of choice. It is necessary to improve the modern Ukrainian plant nomenclature on a national basis involving the transformed Latin scientific names for introduced species and hybrids.

Purpose. To develop and improve adaptive technologies of winter wheat cultivation which provide high productivity and quality of grain. Methods. Field and laboratory stu­dies, mathematical and statistical analysis. Results. During 2011–2015, the impact of cultivation technologies on the formation of grain quality and yield of winter wheat varie­ty ‘Stolychna’ (with pea as predecessor) was studied. When using alternative technologies with only predecessor by-products application, the yield of winter wheat with integ­rated crop protection system was 4,56 t/ha, with minimal protection – 4.25 t/ha with grain quality of the 5th class of B group. Resource saving cultivation technologies with limi­ted application of fertilizers (Р45К45N30(II)+30(IV)) provided productivity at the level of 4,87–5,50 t/ha with grain qua­lity of the 2nd–3rd class of A group. Grain yield of 6.01 t/ha with indicators of the 2nd–3rd class of quality was obtained with the use of intensive cultivation technology with application of mineral fertilizers (Р90К90N30(II)+60(IV)+30(VIII)) on the background of applying predecessor’s by-products and integra­ted crop protection. The highest yield of grain (6.22 t/ha) with indicators of the 2nd class of A group quality on average for the research period was provided by energy-intensive technology, that requires the application of mineral fertilize­rs (P135K135N60(II)+75(IV)+45(VIII)) and incorporation of predecessor’s by-products in the soil, and integrated plant protection. Conclusion. It was found that in the northern part of the Right-Bank Forest-Steppe zone of Ukraine, the highest productivity of winter wheat was obtained in dark grey podzolic soils when using the energy-intensive technology with application of P135K135N60(II)+75(IV)+45(VIII) on the background of predecessor’s by-products and integrated crop protection. This technology ensured the grain yield of 6.22 t/ha of the 2nd class of A group quality.

Purpose. To develop and improve adaptive technologies of winter wheat cultivation which provide high productivity and quality of grain. Methods. Field and laboratory stu­dies, mathematical and statistical analysis. Results. During 2011–2015, the impact of cultivation technologies on the formation of grain quality and yield of winter wheat varie­ty ‘Stolychna’ (with pea as predecessor) was studied. When using alternative technologies with only predecessor by-products application, the yield of winter wheat with integ­rated crop protection system was 4,56 t/ha, with minimal protection – 4.25 t/ha with grain quality of the 5th class of B group. Resource saving cultivation technologies with limi­ted application of fertilizers (Р45К45N30(II)+30(IV)) provided productivity at the level of 4,87–5,50 t/ha with grain qua­lity of the 2nd–3rd class of A group. Grain yield of 6.01 t/ha with indicators of the 2nd–3rd class of quality was obtained with the use of intensive cultivation technology with application of mineral fertilizers (Р90К90N30(II)+60(IV)+30(VIII)) on the background of applying predecessor’s by-products and integra­ted crop protection. The highest yield of grain (6.22 t/ha) with indicators of the 2nd class of A group quality on average for the research period was provided by energy-intensive technology, that requires the application of mineral fertilize­rs (P135K135N60(II)+75(IV)+45(VIII)) and incorporation of predecessor’s by-products in the soil, and integrated plant protection. Conclusion. It was found that in the northern part of the Right-Bank Forest-Steppe zone of Ukraine, the highest productivity of winter wheat was obtained in dark grey podzolic soils when using the energy-intensive technology with application of P135K135N60(II)+75(IV)+45(VIII) on the background of predecessor’s by-products and integrated crop protection. This technology ensured the grain yield of 6.22 t/ha of the 2nd class of A group quality.

Purpose. To select promising high productive maize hyb­rids of middle-early maturity group in terms of stability and plasticity of main economic characters. Methods. Field study, laboratory test, analytical procedure and statistical evaluation. Results. 14 maize hybrids recorded in the State Register of Plant Varieties Suitable for Dissemination in Ukraine in 2015 were studied for plasticity and stability of such traits as productivity, protein and starch content. Intensive highly-plastic hybrid ‘SI Tiptop’ was selected among the studied ones for productivity trait that can respond properly to changes of growing conditions. It was defined that for the starch content such hybrids as ‘SI Tiptop’, ‘SI Enigma’, ‘SI Arioso’, ‘Svich 38’, ‘Svich 35’, ‘HU 8653’, ‘Zdobutok’ and ‘SI Contrakt’ belonged to the intensive type and combined rather high values and the stability of the studied trait under variable conditions. The following hybrids as ‘NS 2642’, ‘DK S3016’, ‘Svich 38’, ‘NS 2632’ were qualified as intensive for protein content and appeared to be highly-plastic but stability values of this trait were low. ‘Svich 38’ hybrid was intensive simultaneously for two traits such as protein and starch content and showed rather high values of plasticity. ‘SI Tiptop’, ‘SI Enigma’ and ‘Svich 35’ were defined as hybrids of extensive type that provided stable protein content in adverse cultivation conditions. Conclusions. On the condition that intensive crop growing technologies should be used, for obtaining stable yields it is advisable to sow only highly-plastic hybrids that can adapt to unfavorable environmental factors, including ‘SI Tiptop’ – for productivity trait, ‘Zdobutok’ and ‘SI Kontrakt’ – for starch content, ‘MAC 24N‘, ‘NA 2642‘ and ‘Danubio’ – for protein content.

Purpose. To select promising high productive maize hyb­rids of middle-early maturity group in terms of stability and plasticity of main economic characters. Methods. Field study, laboratory test, analytical procedure and statistical evaluation. Results. 14 maize hybrids recorded in the State Register of Plant Varieties Suitable for Dissemination in Ukraine in 2015 were studied for plasticity and stability of such traits as productivity, protein and starch content. Intensive highly-plastic hybrid ‘SI Tiptop’ was selected among the studied ones for productivity trait that can respond properly to changes of growing conditions. It was defined that for the starch content such hybrids as ‘SI Tiptop’, ‘SI Enigma’, ‘SI Arioso’, ‘Svich 38’, ‘Svich 35’, ‘HU 8653’, ‘Zdobutok’ and ‘SI Contrakt’ belonged to the intensive type and combined rather high values and the stability of the studied trait under variable conditions. The following hybrids as ‘NS 2642’, ‘DK S3016’, ‘Svich 38’, ‘NS 2632’ were qualified as intensive for protein content and appeared to be highly-plastic but stability values of this trait were low. ‘Svich 38’ hybrid was intensive simultaneously for two traits such as protein and starch content and showed rather high values of plasticity. ‘SI Tiptop’, ‘SI Enigma’ and ‘Svich 35’ were defined as hybrids of extensive type that provided stable protein content in adverse cultivation conditions. Conclusions. On the condition that intensive crop growing technologies should be used, for obtaining stable yields it is advisable to sow only highly-plastic hybrids that can adapt to unfavorable environmental factors, including ‘SI Tiptop’ – for productivity trait, ‘Zdobutok’ and ‘SI Kontrakt’ – for starch content, ‘MAC 24N‘, ‘NA 2642‘ and ‘Danubio’ – for protein content.

Purpose. To develop a conceptually new method for determination of varietal purity (typicality), hybridity, steri­lity of seed lots. Methods of molecular biology (genomic DNA extraction, PCR with SSR markers application, capillary electrophoresis), genetic, statistical, mathematical analysis. Results. New method for determining the varietal qualities of seed lot was developed that consists of the following steps: simultaneous DNA extraction from a representative sample of aggregated seeds; PCR and further analysis of the amplification products by determination of the qualitative and quantitative composition of SSR-markers’ alleles; calculation of values of varietal seed lot quality using experimentally derived allele ratios. Conclusions. The developed method for determining varietal qualities of seed lots allows to reduce significantly the consumption of materials, time and labor during the analysis. Consistent qualification and quantification of alleles in the total sample of a seed lot is a conceptually new approach to establish varietal purity (typicality), hybridity, sterility.

Purpose. To develop a conceptually new method for determination of varietal purity (typicality), hybridity, steri­lity of seed lots. Methods of molecular biology (genomic DNA extraction, PCR with SSR markers application, capillary electrophoresis), genetic, statistical, mathematical analysis. Results. New method for determining the varietal qualities of seed lot was developed that consists of the following steps: simultaneous DNA extraction from a representative sample of aggregated seeds; PCR and further analysis of the amplification products by determination of the qualitative and quantitative composition of SSR-markers’ alleles; calculation of values of varietal seed lot quality using experimentally derived allele ratios. Conclusions. The developed method for determining varietal qualities of seed lots allows to reduce significantly the consumption of materials, time and labor during the analysis. Consistent qualification and quantification of alleles in the total sample of a seed lot is a conceptually new approach to establish varietal purity (typicality), hybridity, sterility.