Inheritance of stem strength and its correlations with culm morphological traits in wheat (Triticum aestivum L.)
文献类型： 外文期刊
作者： Yao, Jinbao 1 ; Ma, Hongxiang 1 ; Zhang, Pingping 1 ; Ren, Lijuan 1 ; Yang, Xueming 1 ; Yao, Guocai 1 ; Zhang, Peng 1 ; Z 1 ;
作者机构： 1.Jiangsu Acad Agr Sci, Prov Key Lab Agrobiol, Nanjing 210014, Jiangsu, Peoples R China
关键词： Wheat (Triticum aestivum L.);stem strength;general combining ability (GCA);specific combining ability;culm morphological traits
期刊名称：CANADIAN JOURNAL OF PLANT SCIENCE （ 影响因子：1.018； 五年影响因子：1.242 ）
ISSN： 0008-4220
年卷期： 2011 年 91 卷 6 期
页码：
收录情况： SCI
摘要： Yao, J., Ma, H., Zhang, P., Ren, L., Yang, X., Yao, G., Zhang, P. and Zhou, M. 2011. Inheritance of stem strength and its correlations with culm morphological traits in wheat (Triticum aestivum L.). Can. J. Plant Sci. 91: 1065-1070. The genetic effect of stem strength and its correlation with culm morphological traits were investigated in a 7x7 diallel cross of wheat involving seven parents (Ningmai 8, Ningmai 9, Yangmai 5, Yangmai 9, Yangmai 11, Sumai 3, and Wangshuibai) during the crop season of 2009-2010. Significant differences were observed among genotypes for stem strength. The estimates of general combining ability (GCA) pointed out that the best general combiners for stem strength were Ningmai 8 and Yangmai 9. The additive-dominance model was adequate for stem strength, and it was controlled by the over dominance type of gene action. Ningmai 8, followed by Yangmai 5, possessed maximum recessive genes, whereas Wangshuibai had maximum dominant genes. Stem strength could be controlled by three genes with low narrow sense heritability. A statistical analysis showed that stem strength is highly significantly correlated with nine culm morphological traits except for diameter of the first basal internode.
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