Assessment of source material for breeding soybeans of various origins in the conditions of the Saratov Trans-Volga region

The results of the assessment of the collection of various soybean varieties in the conditions of the Saratov Trans-Volga region according to economically valuable characteristics are presented. Among the studied samples of various breeding, samples with a height of more than 70 cm were identified: Soer 345, Uchitel, Ras 20, Shirofusa, ENS 1004, SC Unica, SC Elana, Snezhana, Unga OS, SC Aurora, SC Alta, Avril, Tatiana. Assessment of plants by the height of attachment of beans exceeding over 13 cm allowed to select the following samples: OAK Prudence, Snezhana, Unga OS, SC Aurora, SC Alta, Hey He 44, MS-5, Avril, Tenacious, Samer 5, Tatiana, Dawn of Amur. The number of beans per plant over 100 pcs.: Sebur, Alice, VNIIOZ 11, Ras 20, Slava. According to the number of seeds, the following samples had an advantage: Sawyer 345, Alice, Belgorodskaya 143, Gali, Pokrovskaya, Ogemaw, Shirofus, Ambella, Topaz, SC Aurora. The assessment of biological yield on average over the years of research revealed the advantage of varieties: Sawyer 345, Ogemaw, Ambella, OAK Prudence, ENS 0852, ARENS 2, Male, SK Elana, Alice, Snezhana, Unga OS, Natalie, OPH 2018 02, Alvesta, Dawn of Amur, Khekhtsirskaya and Slava. The assessment of the quality indicators of the seeds allowed to identify samples with a high protein content (more than 40.0 %): Pokrovskaya, Unga OS, Natalie, MS-5, Alvesta, EN 1432, Kiivska-451 and Khekhtsirskaya. In terms of fat content (more than 23.0 %), the following varieties had an advantage: Annushka, Sebur, ENS 08 52, SK Elana, Alice, Unga OS, OPH 2018 03, SK Ava, Alvesta, Slava. The fiber content index varied in the studied samples from 7.9 to 9.3 %. All samples had a high ash content in the seeds (more than 5.0 %). According to the average values of nitrogen-free extractive substances in seeds (more than 25.0 %), the following samples were identified: Soer 345, Alice, VNIIOZ 11, Belgorodskaya 143, Gali.