The reaction of soybean varieties of different maturity groups to abiotic factors in the conditions of the eastern zone of the Krasnodar territory

Abstract

The research was carried out in 2009-2019 on the basis of the Armavir Experimental Station-a branch of the All-Russian Scientific Research Institute of Oilseeds named after V. S. Pustovoit. The soil of the experimental site is ordinary chernozem. The predecessor is winter wheat. In the experiment, the varieties of VNIIMK selection were studied-Lira (precocious), Vilana (medium - ripe) and the Armavir experimental station-Duar (medium-ripe). As a result of dispersion and correlation analyses, it was found that in the conditions of the eastern soil and climatic zone of the Krasnodar Territory, the highest yield of 1.91 t / ha was obtained when growing the Vilana variety (control), the growing season was from 109 to 130 days. The yield of soybean grain significantly depends on the GTC - r = 0.7058. The main abiotic factor affecting the yield of soybean grain is moisture availability, the correlation between the yield and the amount of precipitation during the growing season-r = 0.8298. The effect of the duration of the growing season on the yield of soybean grain to a lesser extent was noted-r = 0.3983.