Abstract
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.
Highlights
At the present stage, the economic development of agriculture in Russia requires a solution to the problem of the fodder industry
In the Volga region, a powerful reserve, in particular for the production of high-quality forage, are sorghum crops characterized by high drought resistance
In order for grain sorghum to become widespread in the Volga region, it is necessary to provide agricultural producers with varieties and hybrids characterized by high drought resistance, early maturity, high productivity, resistance to diseases and pests, cold resistance, rapid starting growth, uniformity of ripening, the ability to mechanized harvesting [4,5]
Summary
The economic development of agriculture in Russia requires a solution to the problem of the fodder industry. In order for grain sorghum to become widespread in the Volga region, it is necessary to provide agricultural producers with varieties and hybrids characterized by high drought resistance, early maturity, high productivity, resistance to diseases and pests, cold resistance, rapid starting growth, uniformity of ripening, the ability to mechanized harvesting [4,5].
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