STUDY OF GROWING SEASON OF SOI COLLECTION SAMPLES

The effectiveness of soy cultivation is largely determined by the availability of extensive and diverse source of starting material. Its creation is the first and most important stage of the selection process and begins with the collection and study of various forms of soy. The paper presents the studied data of soybean collection accessions.The study divided accessions into different maturity groups, revealed differences in the duration of the individual phases of plant development. The most promising models, characterized by a complex of economic and biological characteristics were selected.