EVALUATION OF SPRING BARLEY GENOTYPES ACCORDING TO A SET OF PARAMETERS THAT DETERMINE THEIR BREEDING VALUE, ADAPTIVE ABILITY IN COMPETITIVE VARIETY TESTING
2023
Andreev, A. A. | Dracheva, M. K.
The article presents the results of the study of varieties and lines of spring barley in the northeastern part of the Central Chernozem region. These studies made it possible to identify productive genotypes adapted to the weather and climatic conditions of the region. The highest yield was noted in the lines L-54403, L-54241 and variety Grace, these samples on average for all the years of testing had a yield of 2.8-6.4% higher than the average for the experiment. In the conditions of our region, Grace variety (GAC=2.3) and lines L-54241 (GAC=1.0), L-54403 (GAC=0.7) showed high general adaptive capacity. The most stable lines were L-54403 and L- 54241, which had a relative stability Sqi=14.2-16.2% and a regression coefficient on the medium bi=0.92-0.99. Taking into account the parameters of the adaptive capacity and stability of samples allows a more objective approach to the evaluation and creation of new promising varieties and hybrids.
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