| 阴雨寡照条件下玉米穗部性状与产量的相关分析 |
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| 引用本文： | 王久光,蔡一林,孙海燕,王国强.阴雨寡照条件下玉米穗部性状与产量的相关分析[J].西南农业大学学报,2006,28(6):910-912. |
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| 作者姓名： | 王久光 蔡一林 孙海燕 王国强 |
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| 作者单位： | 西南大学农学与生物科技学院,重庆400715 |
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| 基金项目： | 重庆市动植物良种创新工程资助项目（8317-3） |
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| 摘 要： | 以2003年参加玉米预试组合为材料，研究了玉米穗部性状（穗长、竞尖长、行数、行粒数、千粒重、出籽率、小区产量）与产量的相关性。结果表明，竞尖长与千粒重对产量表现出显著相关，相关系数分别为-0．34025和0．40649。穗行数与行粒数与产量的相关系数为0．23314和0．24044，未达到显著性水平。在重庆特殊气候条件下，玉米育种工作应该重点对秃尖长与千粒重进行选择，同时兼顾其他性状的表现。
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| 关 键 词： | 玉米 穗部性状 相关性分析 通径分析 |
| 文章编号： | 1000-2642（2006）06-0910-03 |
| 收稿时间： | 03 3 2006 12:00AM |
| 修稿时间： | 2006-03-03 |
CORRELATION ANALYSIS OF YIELD AND EAR CHARACTERS OF MAIZE IN CLOUDY AND DRIZZLY CONDITIONS |
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| WANG Jiu-guang,CAI Yi-lin,SUN Hai-yan,WANG Guo-qiang.CORRELATION ANALYSIS OF YIELD AND EAR CHARACTERS OF MAIZE IN CLOUDY AND DRIZZLY CONDITIONS[J].Journal of Southwest Agricultural University,2006,28(6):910-912. |
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| Authors: | WANG Jiu-guang CAI Yi-lin SUN Hai-yan WANG Guo-qiang |
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| Institution: | College of Agronomy and Biotechnology, Southwest University, Chongqing 400715, China |
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| Abstract: | The data of some cross combinations of maize in the pre-evaluation in 2003 were used to analyze the correlation between yield and 7 era characters.Grain yield was correlated significantly with bald ear length(r=-0.340 25) and 1 000-kernal-weight(r=(0.406 49)),but non-significantly with row number(r= 0.233 14) and kernel number per row(r= 0.240 44).Therefore,under the cloudy and drizzly conditions prevailing in Chongqing, bald ear length and 1 000-kernal-weight are the most important factors for maize breeding. |
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| Keywords: | maize(Zea mays) ear character correlation analysis path analysis |
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