Formation of an adaptive model of the grasspea variety in the lower volga region of the RF

The article describes the results of a study of a model population of the grasspea (Lathyrus sativus L.). As a result of the study, the parameters of selection traits and their variability in the model population were established. The degree of interrelation of traits and the magnitude of the influence of factors on their manifestation (genotype, growing conditions, interaction of factors) in their overall variability have been established. Forms with a high index of productivity components were identified: by the number of beans per plant, by the number of seeds per plant, by the mass of 1000 seeds, by the seed yield (1.80-2.27 t/ha), by the yield of green mass (14.29-21.77 t/ha). Based on the obtained estimates, the parameters of the optimal adaptive model of the common variety for arid and semi-arid regions of the Russian Federation are presented.