Ecological stability for abiotic stressors of soy-bean early ripening varieties

The soybean productivity depends most of all on weather conditions. Abiotic stress factors appear every year during different phases of the plant growing, and affect the yield formation. Our researches show the depend-ence on external climatic factors of phenological phases of soybean development, the formation of bush according to height and branching, the quantity of beans and seeds on the plant, the mass of 1000 seeds and, finally, the yield. The most stable yields within the years regardless of abiotic stress factors were provided by SibNIIK 315, Major, Aldana, 1073/4, the index of stability was equal to 0.23; 0.37; 0.39; 0.44 respectively.