ECOLOGICAL AND BIOLOGICAL INDICATORS OF PLANT CHARACTERISTICS

Abstract

This article provides information on the study of the influence of sowing deadlines on the variation of quantitative indicators of signs of winter wheat. The “Dustlik” variety of autumn soft wheat was chosen as the object of research. This variety of winder wheat was studied in the conditions of scarce salty gray soil in September, October and early November. Seeding periods strongly affected the number of wheatears. Compared to seeding in September< seeding in November showed 36.67% decrease in the number of wheatears. High harvests of winter wheat (at 447.1 gr per 1m2) were recorded in seeding in October. The timing of seeding affected the variation in quantitative indicators. Being strongly variated and strongly determinated productivity is accepted as an eco-biological indicator in the selection of genotypes adapted for the environment. Wheatear length, its density, plant height, 1000 grains weight are among the least variegated and relatively stable signs, which are recommended as biological indicators in determining productive genotypes.