Correlation relationships of the signs of seed productivity in soy collectible varieties under the conditions of forest-steppe of the Middle Volga region

The article presents the results of correlation of signs of seed productivity in soybean varieties of VIR collection. The study was conducted on the experimental field of Samara research Institute IN 2012-2017. high correlation coefficients for all years were found between the weight of grain per plant and the number of seeds per plant (r = 0.72 - 0.99), as well as between the weight of grain per plant and the number of beans per plant (r = 0.94 - 0.59). The analysis of the travel coefficients showed a positive direct contribution to the sign of the seed mass from the plant of the following features: the number of beans on the plant (R = 1,120 - 0,547), the number of seeds on the plant (R = 1,223 - 0,697) weight of 1000 seeds (R = 0,653).