Study of the phenological characteristics of sugar sorghum hybrids based on A2 cytoplasm when cultivated in the Saratov region
https://doi.org/10.32634/0869-8155-2026-403-02-76-82
Abstract
Relevance. Studying the phenological characteristics of new sorghum varieties and hybrids is an important part of breeding work, especially in the northern sorghum-growing regionsw, where sugar sorghum plants grow in extreme conditions characterized by a lack of active temperature, light hours, and precipitation during certain periods of vegetation. The purpose of the research is to evaluate the phenological characteristics of sugar sorghum hybrids obtained using sterile A2 cytoplasm and identify promising combinations for further testing in arid conditions of the Saratov region.
Methods. Seven hybrids obtained on the basis of CMS lines with sterile A2 cytoplasm were grown during 2022–2024 at the experimental field of Institute “Rossorgo” and evaluated in accordance with generally accepted recommendations and methods.
Results. It was found that the duration of interphase periods and the growing season in general for F1 hybrids depended both on the prevailing weather conditions during the growing season and on the genotypic characteristics. The hybrids that are most suitable for the production of succulent fodder and sugar-containing products have been identified: A2 KVV 114/k-10832 (116–118.7 days) has the lowest variability in the duration of the growing season during the test period, with a difference of 2.7 days; the most precocious hybrids are A2 Chaika/k-64 (101.0–111.3 days) and A2 Chaika/k-581 (102.0–113.0 days).
Supporting agencies: The work was carried out within the framework of the thematic plan of the Federal State Budgetary Budgetary Institution “Russian Scientific Research and Design Technological Institute of Sorghum and Corn” according to the state assignment No. 1022051600013-1 and 124020300044-6 of the Ministry of Agriculture of the Russian Federation.
About the Author
O. P. Kibalnik
Russian Research and Design-Technological Institute
of Sorghum and Corn
Russian Federation
Russian Federation
Oksana Pavlovna Kibalnik, Doctor of Biolgical Sciences, Chief Researcher
4 1th Institute passage, Saratov, 410050
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Review
For citations:
Kibalnik O.P. Study of the phenological characteristics of sugar sorghum hybrids based on A2 cytoplasm when cultivated in the Saratov region. Agrarian science. 2026;1(2):76-82. (In Russ.) https://doi.org/10.32634/0869-8155-2026-403-02-76-82
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