Selection for High Yield, Combining Ability, and Stability in Smooth Bromegrass

Show simple item record Saeidnia, F. Majidi, M. M. Mirlohi, A. 2018-01-11T11:16:20Z 2018-01-11T11:16:20Z 2018-01-11
dc.description Paper en_US
dc.description.abstract To develop synthetic varieties, not only the estimation of General Combining Ability (GCA) for forage production is required but also the stability of GCA for parental genotypes is necessary. Little is known about genetic analysis and selection for high pr oduction, combining ability, and stability in grasses. In this study, half - sib families derived from the polycross of 25 smooth bromegrass genotypes were evaluated under 10 environments (combination of five years and two moisture environments, including no n - stressed and drought stress conditions). Considerable variation for genetic and Genotype×Environment (G×E) interaction was found among half - sib families. Low broad sense heritability (27%) was found for forage yield indicating that selection based on an index may be more useful for improvement of this trait in recurrent selection programs. On the other hand, since the interactions of genetic by environment are significant, selection of superior genotypes for development of synthetic varieties should be do ne based on multi - environments trails. Keywords: Additive effects, Bromus inermis , Drought stress, Polycross, Synthetic variety en_US
dc.language.iso en en_US
dc.publisher JKUAT en_US
dc.subject Synthetic variety en_US
dc.subject Polycross en_US
dc.subject Drought stress en_US
dc.subject Bromus inermis en_US
dc.subject Additive effects en_US
dc.title Selection for High Yield, Combining Ability, and Stability in Smooth Bromegrass en_US
dc.type Working Paper en_US

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