ГОМЕОСТАТИЧНОСТЬ И АДАПТИВНОСТЬ СОРТОВ ГОРОХА РАЗНЫХ МОРФОТИПОВ

Abstract

The main source of vegetable protein in world production is legumes, including peas (Pisum sativum L.). The creation of new highly productive pea varieties, adapted to local conditions, will solve the problem of food and feed protein. Modern varieties also should be characterized by high homeostaticity and stable productivity in a changing climate. The aim of the study was to study the homeostaticity of pea varieties on the basis of grain yield in the southern forest-steppe of the Republic of Bashkortostan. The studies were conducted on the experimental field of Soil Science, Botany and Plant Breeding Department at the Educational and Scientific Center of Bashkir State Agrarian University in 2009-2018. The soil of the experimental plot is leached chernozem of heavy loam granulometric composition. During the research years weather conditions were contrasting. The object of the study was the following pea varieties: Chishminsky 95, Chishminsky 229, Aksaysky usatuy 55 and in memory of Khangildin. Grain yield was recorded. The overall homeostaticity of the varieties (Hom) was determined. In our studies, the grain productivity of the studied pea varieties varied greatly from year to year. On average, over 10 years, the varieties Chishminsky 229 and a variety in memory of Khangildin were the most productive, and the least productive was Aksaysky usatuy 55 variety. Data analysis showed that the variety has a limiting effect on crop yield resistance to environmental stress factors. Varieties Chishminsky 229 (Hom = 36.6), in memory of Khangildin (Hom = 36.5) were characterized by the highest index of homeostaticity, and the variety Aksaysky usatuy 55 (Hom = 26.5) was the least. The varieties of Chishminsky 229 (Sc = 3.44), in memory of Khangildin (Sc = 3.35) and Chishminsky 95 (Sc = 3.38) possessed the highest breeding value.