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- W3048584566 abstract "Purpose. To reveal plant breeding and genetic features of six-row winter barley varieties under conditions of the Forest-Steppe of Ukraine by 1000 kernel weight. Methods. The researches were carried out at the Myronivka Institute of Wheat in 2012/13–2014/15 on six-row winter barley varieties Paladin Myronivskyi, Zherar, Selena star, Strimkyi, Cartel, Existens, Cinderella and F1 derived from crossing them in complete diallel scheme (7 × 7). ANOVA, combining ability and genetic parameters were calculated according to conventional methods (Dospekhov B. A., 1985; Fedin M. A. et al., 1980). Results. There was established variation in genetic control of 1000 kernel weight and shift in distribution of varieties in relation to regression line on Heyman’s graphs depending on conditions of year. In dry 2012/13 intra locus over-domination, and in wet 2013/14-2014/15 incomplete dominance have been noted. The variance of general combining ability (GCA) exceeded much variance of specific combining ability (SCA), thus indicating a notable additive effect in genetic control of the trait. It is also confirmed by coefficient of heritability in the narrow sense (h2 = 0.75-0.88). In each year of the research, the varieties Cartel (2.87-3.57) and Existens (1.12-1.27) were distinguished with high reliable effects of GCA. The variety Cinderella was characterized with positive effects of GCA (0.87) in 2014/15 and on error margin (0.24-0.32) in 2012/2013-2013/14. Analysis of constants of SCA showed a strong variation depending on conditions in years of the research. Conclusions. For the first time under environments of the Forest-Steppe of Ukraine in contrasting weather conditions of 2012/13-2014/15, genetic parameters and combining ability of winter barley varieties for 1000 kernel weight in system of complete diallel crossings (7 × 7) were investigated. The features of parameters of genetic variation and combining ability revealed indicate the possibility of breeding increase in 1000 kernel weight of the most of the genotypes examined. The varieties Cartel, Existens and Cinderella were characterized by increased general combining ability for 1000 kernel weight." @default.
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- W3048584566 date "2017-06-15" @default.
- W3048584566 modified "2023-09-27" @default.
- W3048584566 title "Combining ability and parameters of genetic variation for 1000 kernel weight in multi-row winter barley in the Forest-Steppe of Ukraine" @default.
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- W3048584566 doi "https://doi.org/10.31073/mvis201704-02" @default.
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