The correlation analysis among major breeding objective characters in wheat-rye recombinant lines
1999
Yan Zehong | Zheng Youliang (Sichuan Agricultural Univ., Dujiangyan (China). Inst. of Triticeae)
The partial correlation coefficient among 7 characters in wheat-rye recombinant lines were studied. The positive significant correlations were found between heading date and spikelet per spike, plant height and protein content, 1000-grain weight and grain numbers per spike, and grain weight per spike, respectively. But a negative significant partial correlation was found between 1000-grain and grain numbers per spike. The other correlation involved in the seven characters were not significant. The positive correlation between 1000-grain weight and grain numbers per spike, plant height and protein content, heading date and spikelet number per spike, have disadvantageous effect on the genetic improvement of wheat-rye recombinant lines. In the paper, the combination among 1000-grain weight, grain numbers per spike and multispikelet have been discussed. Furthermore, how to coordinate these disadvantage correlation was discussed
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