It is definited the coefficients of quantitative signs’ inheritance for new donors of dominant stem shortness in winter rye. It is proved the genetic conditionality of plant height’s display for three new donors, which s controlled by aditive genes mainly. It is definited the laws of display and inheritance of other utilitarian signs of new donors Gnom 1, Gnom 2 and Gnom 3. The study of genetic associations of paternal forms’ height with the descendants’ quantitative signs enables to define the strategy of selectional use of dominant stem shortness donors in winter rye.

It is definited the coefficients of quantitative signs’ inheritance for new donors of dominant stem shortness in winter rye. It is proved the genetic conditionality of plant height’s display for three new donors, which s controlled by aditive genes mainly. It is definited the laws of display and inheritance of other utilitarian signs of new donors Gnom 1, Gnom 2 and Gnom 3. The study of genetic associations of paternal forms’ height with the descendants’ quantitative signs enables to define the strategy of selectional use of dominant stem shortness donors in winter rye.

Indicators of the morphological signs of type of sort on white cabbage plants Dutch flat, Belarus, Amager, Langendijker winter and their variability are the presented. It is established low and average factor of a variation at the majority of the morphological signs. Strong high-quality and ecological variability of signs “height external rake” and “its size leafy parts” at type of sort Dutch flat is defined.

Indicators of the morphological signs of type of sort on white cabbage plants Dutch flat, Belarus, Amager, Langendijker winter and their variability are the presented. It is established low and average factor of a variation at the majority of the morphological signs. Strong high-quality and ecological variability of signs “height external rake” and “its size leafy parts” at type of sort Dutch flat is defined.

In the Mironivka Institute for wheat named by V.M. Remeslo UAAN new winter-hardy winter wheat variety material was obtained. The annual breeding was used for the selection df winter wheat forms from spring wheat varieties by the prevernalization, spring sowing and M2 at the beginning of optimal terms in autumn (the influence of low temperature on spring wheat seeds). On the basis of such material, winter-hardy wheat varieties were created, such as Myronivs’ka rannyostygla, Remeslivna, Vo- loshkova and such varieties as Bagira, Vdyachna and Svyankova were submitted to the State Service for Plant Variety Protection.

In the Mironivka Institute for wheat named by V.M. Remeslo UAAN new winter-hardy winter wheat variety material was obtained. The annual breeding was used for the selection df winter wheat forms from spring wheat varieties by the prevernalization, spring sowing and M2 at the beginning of optimal terms in autumn (the influence of low temperature on spring wheat seeds). On the basis of such material, winter-hardy wheat varieties were created, such as Myronivs’ka rannyostygla, Remeslivna, Vo- loshkova and such varieties as Bagira, Vdyachna and Svyankova were submitted to the State Service for Plant Variety Protection.

The fruit of apple scab immune hybrids, obtained from the targeted crossings for suitability for juice production, were estimated. The most perspective hybrids were selected. They are not inferior to the world juice cultivars in the basic technological characters (juice output), and even surpass them in a number of these characters (the content of SDS and P-active catechols in juice).

The fruit of apple scab immune hybrids, obtained from the targeted crossings for suitability for juice production, were estimated. The most perspective hybrids were selected. They are not inferior to the world juice cultivars in the basic technological characters (juice output), and even surpass them in a number of these characters (the content of SDS and P-active catechols in juice).

New donors of short-stem dominant characteristic Gnom 1 (G1), Gnom 2 (G2), Gnom 3 (G3) have been created to the purpose of further increasing the yield of Winter Rye and effective redistribution of assimilation products to the benefits of the grain. Genetic and Statistical analysis of 10 selective characteristics of these donors has been conducted and options to improve them were determined. Application of G1 in the prospective breeding programs G1 on 10 characteristics would not create considerable difficulties. Engagement in the crossing of G2 and G3 donors may create complications in the expression of- productivity characteristics of the ear and plants in the progenies. Crossing used in transgress and combinative breeding is preferable for applying. Application of G3 may be accompanied with technical inconvenience in perfor-ming directed crossing. Application of G3 attracts by the creating conditions for uniting desirable height of plant with the constitutionnal components of Winter Rye productivity.

Мета. Визначити кореляційні зв’язки між урожайністю та показниками якості зерна сортів і селекційних ліній пшениці м’якої озимої. Методи. Дослідження проводили в умовах Миронівського інституту пшениці імені В. М. Ремесла НААН України (МІП) впродовж 2019/20–2021/22 рр. Оцінювали десять нових сортів і чотири селекційні лінії пшениці м’якої озимої миронівської селекції. Показники якості зерна визначали згідно із загальноприйнятими методами в лабораторії якості зерна МІП. Для встановлення кореляційних зв’язків розраховували коефіцієнти кореляції (r) Пірсона. Результати. Між урожайністю та показниками якості зерна пшениці м’якої озимої встановлено різні за напрямом та силою кореляційні зв’язки ( 0,32 < r < 0,61). Зокрема, в роки досліджень одержано вірогідні прямі коефіцієнти кореляції між урожайністю та показником маси 1000 зерен (r = 0,17–0,46). Також за певних гідротермічних умов вирощування виявлено вірогідну прямолінійну залежність (r = 0,13–0,61) урожайності від водопоглинальної здатності борошна, натури, склоподібності зерна, вмісту білка та клейковини. Виділено сорти й селекційні лінії пшениці м’якої озимої, які під час досліджень мали стабільно прямі кореляційні зв’язки між врожайністю та масою 1000 зерен, склоподібністю зерна, вмістом білка, вмістом клейковини, індексом еластичності тіста, силою борошна, пружністю тіста, водопоглинальною здатністю борошна. Висновки. Виокремлені сорти й селекційні лінії пшениці м’якої озимої можуть бути використані в селекційному процесі як джерела поєднання в одному генотипі високої врожайності та певних підвищених показників якості для створення конкурентоспроможних сортів.

Advantages of heterotic hybrids of the winter rape in the competitive and in the production testing proven. While certain advantages in the productivity of cultivar of the Czech selection of Odila above the domestic cultivar of Dangal got in the competitive testing in the production testing confirmed. It is established that the greatest productivity in the production testing was had hybrids Vsesvit F1t Zapalnyj Fb G-3 Fi and G-4 Fi, which are characterized the stable and yearly high productivity and combine the productivity with adaptability to the environmental conditions of area of Forest- steppe of Ukraine.

Advantages of heterotic hybrids of the winter rape in the competitive and in the production testing proven. While certain advantages in the productivity of cultivar of the Czech selection of Odila above the domestic cultivar of Dangal got in the competitive testing in the production testing confirmed. It is established that the greatest productivity in the production testing was had hybrids Vsesvit F1t Zapalnyj Fb G-3 Fi and G-4 Fi, which are characterized the stable and yearly high productivity and combine the productivity with adaptability to the environmental conditions of area of Forest- steppe of Ukraine.

Possibility of heterosis effect approbation by using synthetic varieties of winter rye was discussed. Heterosis level of first five generation of rye synthetics did not decrease. Considerable yield decrease of winter rye grain took place in later generations. Concept of synthetic varieties of winter wheat creation in Ukraine is prospective, though it requires scientific, economical and legal improvement.

Possibility of heterosis effect approbation by using synthetic varieties of winter rye was discussed. Heterosis level of first five generation of rye synthetics did not decrease. Considerable yield decrease of winter rye grain took place in later generations. Concept of synthetic varieties of winter wheat creation in Ukraine is prospective, though it requires scientific, economical and legal improvement.

Methodical approaches to the cutting lettuce new varieties morphological characteristics grouping are found with regard to the botanical classification of the species. New morphological characteristics, used for new varieties of plants grouping and examination for distinctness are defined.

Methodical approaches to the cutting lettuce new varieties morphological characteristics grouping are found with regard to the botanical classification of the species. New morphological characteristics, used for new varieties of plants grouping and examination for distinctness are defined.

Results of four-years assessment of approximately 90 winter wheat varieties at post- registration research on the background of crops chemical protection and in its absence at Biloczerkivska DSDS (forest- steppe zone) and Borodianska DSDS (subforest zone) are represented in this article. Methods of their immunological assessment and determination of potential productivity have been developed too. Authors are recommending to conduct immunological assessment of varieties on their natural background of diseases development and assess potential productivity in conditions of plants chemical protection as this is the element of crop growing technology.

Results of four-years assessment of approximately 90 winter wheat varieties at post- registration research on the background of crops chemical protection and in its absence at Biloczerkivska DSDS (forest- steppe zone) and Borodianska DSDS (subforest zone) are represented in this article. Methods of their immunological assessment and determination of potential productivity have been developed too. Authors are recommending to conduct immunological assessment of varieties on their natural background of diseases development and assess potential productivity in conditions of plants chemical protection as this is the element of crop growing technology.

The study results for many years (1972- 2006) of pear gene pool in the All- Russian Research Institute of Horticultural Breeding are given. The cultivars and selections have been singled out for wide dissemination and use in breeding.

The study results for many years (1972- 2006) of pear gene pool in the All- Russian Research Institute of Horticultural Breeding are given. The cultivars and selections have been singled out for wide dissemination and use in breeding.