| 吉林省中晚熟玉米杂交种主要农艺性状与产量的相关和通径分析 |
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| 引用本文： | 岳尧海,赵万庆,王绍平.吉林省中晚熟玉米杂交种主要农艺性状与产量的相关和通径分析[J].辽宁农业科学,2009(4):5-7. |
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| 作者姓名： | 岳尧海 赵万庆 王绍平 |
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| 作者单位： | 吉林省农业科学院玉米研究所,吉林,公主岭,136100 |
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| 摘 要： | 选用30个中晚熟玉米杂交种为供试材料，采用随机区组设计。经过对行粒数、株高、穗行数、千粒重等5个农艺性状进行相关分析和通径分析表明，对产量影响最大的因素是行粒数（P0.4=0．8345^＊＊，r=0．8056^＊＊和千粒重（P0.3=0．5270^＊＊，r=0．5849^＊＊），相关系数达极显著水平，其次是穗行数，株高，穗位高。指出在吉林省中晚熟玉米育种中，提高行粒数和千粒重，适当增加穗行数并兼顾其他农艺性状是提高玉米产量的有效途径。
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| 关 键 词： | 玉米杂交种 农艺性状 相关分析 通径分析 |
Correlation and Path Analysis between Yield and Main Agronomic Traits of Mid-late Mature Maize Hybrids in Jilin Province |
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| YUE Yao-hai,ZHAO Wan-qing,WANG Shao-ping.Correlation and Path Analysis between Yield and Main Agronomic Traits of Mid-late Mature Maize Hybrids in Jilin Province[J].Liaoning Agricultural Sciences,2009(4):5-7. |
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| Authors: | YUE Yao-hai ZHAO Wan-qing WANG Shao-ping |
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| Institution: | ( Maize Research Institute, Jilin Academy of Agricultural Sciences, Gongzhuling, Jilin 136100) |
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| Abstract: | Thirty mid-late mature maize hybrids were tested by using a Randomized Complete Block Design. The maize experiment was conducted by analyzing the correlation and Path between yield and main agronomic traits. The most contribution to the yield is from grains per row and 1 000-grain weight with p and r value （P0.4 = 0. 8345^ ＊ ＊ ,r = 0. 8056^ ＊ ＊ ,P0.3 = 0. 5270 ^＊ ＊ , r = 0. 5849 ^＊ ＊ ）. The correlation value showed highly significant differences at 1% level. The following was rows per ear, plant height and ear height. This article pointed out enhancing grains per row and 1 000-grain weight, increasing rows per ear properly and giving dual attention to main agronomic traits is an effective way to enhance the corn yield in breeding of Jilin province. |
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| Keywords: | Mid-late mature maize hybrids Agronomic traits Correlation analysis Path analysis |
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