Evaluation of breeding samples of complex hybrid clover populations based on economically valuable characteristics in order to form new varieties of grassland direction
https://doi.org/10.32634/0869-8155-2021-346-3-74-78
Abstract
The paper presents the results of research on the formation of complex hybrid populations, the assessment of collection samples of clover on the complex of economically valuable characteristics for the creation of varieties of hay-pasture type. The basis for the study was promising plants and their biomechanical mixture, which was sown in a wide row and individually in a row. By negative selection, weak and underdeveloped plants were mowed down. In the period of budding — the beginning of flowering, the accounting of economically valuable signs was carried out by cutting the plants at a height of 10–12 cm. The direct dependence of seed formation on weather conditions is noted. In the first year of life the clover plants developed unevenly. The evaluation of the productivity of the studied legumes, which was determined by the calculation method based on the weight of seeds from one plant, showed that the maximum level of seed yield was formed by samples of all the studied cultivars, which exceeded the standard variety by 15–20%. The assessment of the collection samples of clover, according to the complex of economically valuable characteristics for the creation of varieties of hay-pasture type, is given. The best samples were selected for the yield of green mass, bushiness and plant height. The initial material was obtained according to the characteristics of adaptability, yield of green mass, leafiness and seed productivity. Promising clover samples were selected for high seed productivity, that reached more than 60%. Based on the repollination of the best genotypes, complex hybrid populations were formed for further selection evaluation. Рromising samples were selected based on a complex of traits: Minsk mutant, Orlik, Lisitsyn’s memory, Yaskrava, Farn; wild-growing samples from mountain regions: Dargavs, Gornaya Saniba, Vakats; complex hybrid populations: Syn 305-03, Syn 300-99, Tos-31, FM-46, Syn 320-08, 321-08, with high productivity exceeding the standard grade of Daryal.
About the Author
V. I. Gasiev
The North Caucasian Research Institute of Mountain and Piedmont Agriculture — the Affiliate of Vladikavkaz Scientific Centre of the Russian Academy of Sciences
Russian Federation
Russian Federation
Candidate of Agricultural Sciences, Researcher at the Laboratory of Selection and Seed Production of Grain and Forage Crops
Mikhailovskoye village, 1 Williams st.,
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Review
For citations:
Gasiev V.I. Evaluation of breeding samples of complex hybrid clover populations based on economically valuable characteristics in order to form new varieties of grassland direction. Agrarian science. 2021;(3):74-78. (In Russ.) https://doi.org/10.32634/0869-8155-2021-346-3-74-78
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