Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The Norman High School volleyball team, under head coach Butch Peters, is off to a solid start despite a relative lack of experience. The Norman team includes, from left (kneeling) , Danice Fox, Stacy Allen, Elizabeth Richardson and Joan Fletcher; (standing) Amy Langenbach, Lee Corley, Staci Smith, Moira Redcord and Tina Santizo.

Dan Yang

Hongxiang Ma

Jinbao Yao

Miaoping Zhou

Xueming Yang

ABSTRACT The inheritance of grain yield plant -1 and its correlation with other yield components were investigated in a diallel cross of seven wheat parents during the crop season of 2011-2012. Mean square of GCA effect was 2.90 for grain yield plant-1, which was highly significant (P&lt;0.01), indicating that additive effect played important role in the inheritance of the trait. SCA effect was also highly significant (P&lt;0.01) for grain yield plant-1 (0.68), suggesting that the trait was also controlled by non-additive effect. The estimates of GCA showed that the best combiner for grain yield plant-1 was Ningmai 9. The additive-dominance model was partially adequate for grain yield plant-1 and it was controlled by the over dominance type of gene action. Ningmai 8 possessed maximum dominant genes, whereas Yangmai 9 had maximum recessive genes. Grain yield plant-1 might be controlled by two groups of genes and exhibited moderately high value of narrow sense heritability (h2N=69.51%). The statistical analysis revealed that grain yield plant-1 was positively and significantly correlated with tillers plant-1 (rp=0.584, rg=0.595) and number of grains spike-1 (rp=0.528, rg=0.507) at phenotypic and genotypic levels

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INHERITANCE OF GRAIN YIELD AND ITS CORRELATION WITH YIELD COMPONENTS IN BREAD WHEAT (Triticum aestivum L.)

The genetic effect of grain yield plant-1 and its correlation with yield components were investigated in a 7 × 7 incomplete diallel cross of seven wheat parents during the crop season of 2009 to 2010. Mean square of general combining ability (GCA) effect was 2.90 for grain yield plant-1, which was highly significant (P&lt;0.01), indicating that additive effect played important role in the inheritance of the trait. Specific combining ability (SCA) effect was highly significant (P&lt;0.01) for grain yield plant-1 (0.68), suggesting that the trait was also controlled by non-additive effect. The estimates of GCA showed that the best combiner for grain yield plant-1 was Ningmai 9. The additive-dominance model was partially adequate for grain yield plant-1 and it was controlled by the over dominance type of gene action. Ningmai 8 possessed maximum dominant genes, whereas Yangmai 9 had maximum recessive genes. Grain yield plant-1 might be controlled by two groups of genes and exhibited moderately high value of narrow sense heritability (h2N=69.51%). The statistical analysis revealed that grain yield plant-1 was positively and significantly correlated with tillers plant-1 (rp=0.584, rg=0.595) and number of grains spike-1 (rp=0.528, rg=0.507) at phenotypic and genotypic levels. The information obtained from the study might be helpful for wheat breeders trying to develop new varieties with high-yielding potential.Keywords: Combining ability, diallel cross, grain yield, inheritance, Triticum aestivum LAfrican Journal of Biotechnology, Vol 13(12), 1379-138

Yao, Jinbao

Ma, Hongxiang

Yang, Xueming

Yao, G.uocai

Zhou, Miaoping

AJOL - African Journals Online

English

Inheritance of grain yield and its correlation with yield components in bread wheat (Triticum aestivum L.)

Wilson, George R.

Gateway to Oklahoma History