Morphogenetic productivity index of winter soft wheat

This research is dedicated to the study of the morphogenetic index of productivity of winter soft wheat. While studying, the number of spikelets in the ear, grains in the ear and the mass of grains in the ear were measured, the morphogenetic index of productivity was calculated according to the main indicators of the shoot. In selection practical work the morphogenetic productivity index is a convenient criterion for evaluating the morphogenetic potential and the yield of the cultivar. 8 (eight) cultivars of winter soft wheat of Saratov selection were taken as study material. The study reveals that the morphogenetic productivity index (MPI) for the number of spikelets per ear varies from 2.36 (Lutescens 230) to 5.43 (Saratovskaya 17). According to the number of grains in the ear, Saratovskaya 17 shows the variety of 2.31 while Kalach 60 shows the variety of 3.9. The Pearl of Povolzhe, Mironovskaya 808, and Kalach 60 demonstrate high values of MPI according to the weight of grains in the ear. The analyzing of the obtained data allows to find out that the MPI values of each of the productivity elements for the same cultivar can greatly differ over the growing years, which, in our opinion, indicates the wide plasticity of the variety in specific weather conditions of the growing season. The analysis of the correlation of MPI indicators with productivity shows that cultivars which have high morphogenetic productivity index (Guberniya, Saratovskaya 90, Kalach 60) are characterized by high productivity.