About increase of selective efficiency in vicia sativa on adaptivity and seed productivity in breeding nursery

On the basis of statistics parameters the possibility for revelation of adaptive form in Vicia sativa already in breeding nursery of first year and the increase of reliability of estimation on this breeding stage was considered. The data are presented on plasticity and homeostatic character of vetch during different on meteorological conditions years. It was shown, that the use two variants on planting density (5×30 and 2,5×15 sm) permit to reveal the best vetch variants on plasticity and homeostatic character in breeding nursery of first year on the basis of estimation of their intensity and breeding value. The index of breeding value permit to increase the reliability of vetch selection in nursery on seed productivity. These statistic indices do not allowed during extreme on weather conditions years.