- Turkish Journal Of Field Crops
- Vol: 19 Issue: 2
- Inheritance of Graın Yield and Its Correlation with Yield Components In Bread Wheat (Triticum aestiv...
Inheritance of Graın Yield and Its Correlation with Yield Components In Bread Wheat (Triticum aestivum L.)
Authors : Jinbao YAO, Xueming YANG, Miaoping ZHOU, Dan YANG, Hongxiang MA
Pages : 169-174
Doi:10.17557/tjfc.30098
View : 9 | Download : 9
Publication Date : 2014-02-01
Article Type : Research
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<0.01), indicating that additive effect played important role in the inheritance of the trait. SCA effect was also highly significant (P<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 levelsKeywords : diallel cross, grain yield, inheritance, Triticum aestivum L