Variability and Character Association in Barley (Hordeum vulgare L.) - Daba, Sintayehu
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Among the characters studied, harvest index, number of kernels per spike, biomass yield, and 1000-kernel weight were more heritable, high in variability and genetic advance compared to grain yield with somehow good association with grain yield, with the first two of these traits has positive association with each other while the last two traits were also positively correlated with each other. However, the associations among the two groups were negative. Hence, it is important to compromise selection among these traits to take care of the negative correlations among them and to bring about…mehr

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Produktbeschreibung
Among the characters studied, harvest index, number of kernels per spike, biomass yield, and 1000-kernel weight were more heritable, high in variability and genetic advance compared to grain yield with somehow good association with grain yield, with the first two of these traits has positive association with each other while the last two traits were also positively correlated with each other. However, the associations among the two groups were negative. Hence, it is important to compromise selection among these traits to take care of the negative correlations among them and to bring about sufficient improvement in grain yield. Generally, selection for good biomass yield with increased harvest index, and restricted selection for number of kernels per spike and 1000-kernel weight could be useful as indirect selection criteria for improving grain yield.
Autorenporträt
Mr. Sintayehu Debebe Daba was employed by Ethiopian Istitute of Agricultural Research and assigned to work as barley breeder from 2000 to 2010. He has also acquired his MSc degrees from Alemaya University in 2003. Now, he is pursuing his PhD study in plant sciences with research focus on QTL mapping in barley at North Dakota State University, USA.