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Position: Home > Articles > Correlation Analysis on Yield Components of Wheat Hubei Agricultural Sciences 2012,51 (23) 56-58

小麦产量构成因素的相关性分析

作  者:
周芳菊;陈桥生;张道荣;汤清益;姜齐斌;王艳;刘先斌;陆天泰
单  位:
湖北省襄阳市农业科学院
关键词:
小麦(Triticum aestivum L.);变异系数;产量构成因子;相关性分析
摘  要:
通过对2009-2012年湖北省3个小麦(Triticum aestivum L.)主导品种郑麦9023、襄麦55、襄麦25的产量及其构成因素调查分析表明,有效穗数对产量的贡献最大,直接通径系数为0.412 5,其次是千粒重,为0.287 2,贡献最小的是每穗粒数,为0.151 7,相关分析和通径分析结果一致;不同年度间,千粒重的变异系数最大,其次是有效穗数,最小的是每穗粒数。因此,襄阳市麦区应在群体适宜有效穗数的基础上,把增加穗粒数和千粒重作为突破口,实现三者的最佳协调关系,力争达到产量最大化。
译  名:
Correlation Analysis on Yield Components of Wheat
作  者:
ZHOU Fang-ju,CHEN Qiao-sheng,ZHANG Dao-rong,TANG Qing-yi,JIANG Qi-bin,WANG Yan, LIU Xian-bin,LU Tian-tai(Xiangyang Agricultural Science Academy of Hubei Province,Xiangyang 441057,Hubei,China)
关键词:
wheat(Triticum aestivum L.);variation coefficient;yield component;correlation analysis
摘  要:
According to the investigation and analysis on yield and component factors of three wheat(Triticum aestivum L.) cultivars,Zhengmai 9023,Xiangmai 55 and Xiangmai 25 during 2009~2012,effective spike number had the most significant positive correlation with actual production(path=0.412 5);1 000-kernel-weight was the second(path=0.2872);while grain number per spike had the lowest(path=0.151 7) correlation.The results of correlation analysis and path analysis were consistent.The variation coefficient of 1 000-kernel-weight during different year was the highest,followed by effective panicle;the lowest was of grain number per spike.In order to reach the maximum yield,the breakthrough should be realized on increasing the grain number and 1 000-kernel-weight based on the optimum effective spike number,and coordinate the relationship among the three indexes.

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