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Kwame Wilson Shamuyarira,Hussein Shimelis,Terence Tapera,Toi John Tsilo 한국작물학회 2019 Journal of crop science and biotechnology Vol.22 No.2
Genetic variation and heritability estimates in early generations are important in identifying superior families that can be targeted for genetic advancement. Early generation selection has been a successful tool to enhance selection efficiency in plant breeding programs. The aim of this study was to select and advance F3 families of wheat relative to their parents for drought tolerance using agronomic traits. Twelve parental lines and 66 newly-developed F3 families were evaluated using a 6x13 alpha-lattice design under drought-stressed and non-stressed conditions. Considerable genetic and phenotypic variation was observed for days to heading, plant height, spike length, kernels per spike, fresh biomass, and grain yield. Expected genetic gains were high for fresh biomass and grain yield. The families LM02xLM05, LM02xLM23, LM09xLM45, and LM13xLM45 were high yielding with high biomass values and are recommended for genetic advancement using single seed descent.