Using soybean starting material in breeding process

Abstract

The paper evaluates new promising soybean varieties and their parental forms with high yield, seed quality, and resistance to diseases and the stress conditions of Primorsky kray for a number of traits. The soybean accessions were used in a breeding program for constructing genotypes. Based on the research results, we selected promising soybean varieties characterized by a high yield and a high content of protein and oil in seeds. The yield of varieties Primorskaya 1670 and Primorskaya 1672 exceeded the standard by more than 32.2%. Varieties Primorskaya 1551 and Primorskaya 1674 had a high oil content in seeds – 23.8% and 24.1%, respectively. Variety Primorskaya 1659 was characterized by a high content of protein (41.2%). The parental forms used in the breeding of the new varieties were evaluated for a number of economically important traits. The yield of the starting forms ranged from 0.149 to 0.405 kg/m2. It was determined that 69.5% of the soybean accessions belonged to the group with mid-season maturity. A high content of protein in seeds (> 40.0 %) was detected in varieties of various origin – Primorskaya 13, Hefeng 25, NIISKH 2, XN 4, Arisa, and Kioto; variety NIISKH had a high oil content (24.2%). Varieties NIISKH 6, D 402-HH51, Arisa, NIISKH 5, XN 8, and XN 4 demonstrated a high potential adaptability to stress conditions.