Abstract:
Проведено аналіз залежності показника зав’язування насіння у пшениці м’якої озимої від наявності у батьківських форм пшенично-житніх транслокацій. Спостерігалася тенденція щодо кращого зав’язування гібридного насіння зі збільшенням терміну від кастрації до запилення. Рівень сумісності використаних у схрещуваннях сортів залежить від генотипу материнської форми. Проведен анализ зависимости показателя завязывания семян у пшеницы мягкой озимой от наличия у родительских форм пшенично-ржаных транслокаций. Наблюдалась тенденция относительно лучшего завязывания гибридных семян с увеличением срока от кастрации к опылению. Уровень совместимости использованных в скрещиваниях сортов зависит от генотипа материнской формы.
Description:
The aim research is an exposure of dependence between seed settings in the first generation of intervarietal hybrids of bread winter wheat and presence of wheat-rye translocation at the paternal forms. The field experiments were conducted in 2012-2013 on the experimental field of educational research and production complex in Sumy national agrarian university. There was a tendency in relation to better setting of hybrid seed with the term increase from castration to pollination. Significantly higher index of setting was for carrying out pollination on 5-6 day compared to 1-3 days. Combinations participating in cross-varieties where genotypes with a wheat-rye translocation 1AL/1RL were brought into as maternal form, were distinguished with high indexes of hybrid seed settings. Combinations participating in crossing, where genotypes with a wheat-rye translocation 1BL/1RS were characterized as a maternal form by the average indexes of hybrid seed settings. Combinations where as a male paternal form were genotypes with wheat-rye translocations 1AL/1RL and 1BL/1RS by low indexes of hybrid seed settings were marked, and also without them. They are the carriers of wheat-rye translocations. The field similarity indexes of the hybrid seed, survival of F1 plants and level of sign inheritance of F1 plants and transgression of F2 plants are in perspective of further research.
