интрогрессивные линии

The study of the resistance of plants obtained as a result of introgressive breeding to various factors, including osmotic stress, is an important stage of breeding work. The objects of research are two varieties of spring soft wheat – Saratovskaya 70 and Saratovskaya 68 and three lines – L3 (C68/ThatcherLr28*4//C68), L4 (C68/ThatcherLr29*4//C68), L12 (C70/ThatcherLr29* 4//C70). PEG was used as a cultivation substrate. The eff ect of osmotic stress on growth was assessed by morphometric parameters, the seedling root availability index, and the seedling root index.

To protect bread wheat from rust diseases, introgressive resistance genes located in alien translocations are commonly used. In the literature there are no data on the effect of Lr-genes on the structures of the embryo grain. For the solution of these problems, developed lines Dobrynya, resistant to leaf rust. In work results of research of the anatomic-morphological structure of the grains wheat Lr-genes of resistance to leaf rust.