The article characterizes the advantages of sudangrass, presents its comparative assessment, and gives recommendations for the cultivation of a new variety Evgeniya for seeds. Implementation of the program for the development of forage production in Russia and other countries implies not only the creation of new varieties but also the promotion of their introduction. This study aims to test the new variety Evgeniya of sudangrass and refine the cultivation techniques for obtaining high-quality seeds in the Volga region. For a period of 2 years, we studied the new promising variety, new lines that were obtained during interspecific, intraspecific, and intervarietal crossings carried out in different years, and new varieties of sudangrass recommended for cultivation in the region. The Yubileinaya 20 and Zonalskaya 6 varieties of sudangrass were used as standards. Field studies were carried out in 2017-2019. It was found that the new variety Evgeniya was characterized by high values of economically valuable traits. The variety had several biometric and biological features, such as thin stems and high yields, so we studied the influence of sowing methods and seeding rates not only on yield but on seed quality. To obtain the maximum yield of high-quality seeds, Evgeniya sudangrass must be sown with a seeding rate of 0.6-0.7 mln. viable seeds per hectare and row spacing of 30 cm.

Саратовский государственный аграрный университет имени Н.И. Вавилова В результате многолетних исследований созданы рабочие коллекции для селекции зернового и сахарного сорго, чумизы и суданской травы, выявлены перспективные селекционные линии. Получены патенты и включены в Государственный реестр охраняемых селекционных достижений сорт зернового сорга Гарант и 4 лучшие родительские формы синтетической популяции: ЖВИ-25, ЖВИ-32, МЕВ-89/2, МЕВ-93/2. На государственное сортоиспытание в 2016 г. передана селекционная линия зернового сорго МЕВ-1/16. Селекционные линии сахарного сорго Л-109, Л-9, Л-23, Л-1898/2 рекомендованы для дальнейшей оценки в конкурсном сортоиспытании. По результатам комплексной оценки селекционного материала линия суданской травы МЕВ-117/2015 передана на Государственное сортоиспытание. Все перспективные линии будут использованы в селекции для создания конкурентоспособных сортов и гибридов зернокормовых культур.

For the arid zone of the Lower Volga region, grain sorghum is an important forage crop. The paper presents the results of a comparative assessment of grain yield and biomass of breeding lines of grain sorghum in the nursery of preliminary variety testing. The volume of the nursery for the preliminary variety testing was 117 breeding lines. The most productive were the breeding lines of grain sorghum, the grain yield of which reached 3.95 t / ha (line PSI-17 / EV-56); 4.10 t / ha (line PSI-17 / EV-113); 4.15 t / ha (line PSI-17 / EV-55); 4.50 t / ha (line PSI-17 / EV-92) with a yield of 3.75 t / ha of the standard variety Volzhskoe 4. As a result of scientific research, the promising breeding lines of grain sorghum were identified: PSI-17 / EV-56 and PSI-17 / EV-92, which were recommended to be submitted for competitive variety testing. It is advisable to use the breeding line of grain sorghum PSI-17 / EV-54V for early maturity. The breeding lines of grain sorghum: PSI-17 / EV-56 and PSI-17 / EV-90 are planned to be included in crosses to create varieties and hybrids with high grain quality. Breeding lines of grain sorghum: PSI-17 / EV-50, PSI-17 / EV-54, PSI-17 / EV-92 and PSI-17 / EV-127 are planned to be used in breeding for biomass yield.

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