Affiliation:
1. Agricultural Research Center “Donskoy”
Abstract
The current paper has presented the study results on the homeostaticity of the collection samples of soybeans according to the trait “seed weight per plant” in the southern part of the Rostov region, conducted on the fields of the FSBSI “Agricultural Research Center “Donskoy” in 2017-2019. The purpose of the research was to determine the homeostaticity of the collection samples of soybeans according to the trait “seed weight per plant”. The objects of the research were 75 samples of soybeans of the middle early ripening group, which varied according to their morphological, biological and economically valuable traits and properties. There have been selected 27 collection samples of soybeans, which significantly exceeded the standard variety in terms of to the trait “seed weight per plant”. The soybean variety ‘Don 21' developed in the FSBSI “Agricultural Research Center “Donskoy” was used as a standard variety. The meteorological conditions during the growing season of soybeans during the years of study were different, which made it possible to objectively estimate the parameters of homeostaticity. For statistical processing of the results obtained, there were used the Dospekhov's methods of analysis of variance, the homeostaticity indices (Hom) were calculated according to V. V. Khangildin. (1984). According to the study results, it was established that the sample ‘Veselovskaya 5', ‘Line 504/11' and ‘PR 110370 OZ 006' had high productivity indices per a plant, along with high homeostaticity indices. There has been recommended to use them in breeding for homeostaticity and ecological adaptability. The highly productive samples ‘Im 55-2', ‘Kyoto', ‘Kofu', ‘Line 696-1', ‘M-91-212006, ‘RZhT Shuna', ‘SVH 14 TOS 1D' have shown a low index of homeostaticity. They could be characterized as the samples responsive to the improvement of environmental conditions and could be recommended as an initial material when developing varieties of intensive type.
Publisher
FSBSI Agricultural Research Center Donskoy
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