大麦与谷类科学2025，Vol.42Issue(4)：22-26,5.DOI:10.14069/j.cnki.32-1769/s.2025.04.004
18个玉米新组合主要农艺性状与产量的多重分析
Multiple Analysis of Main Agronomic Traits and Yield of 18 New Maize Combinations
陈国斌 1刘婷婷 1谢志坚 1孟静娇 1李琰聪 1杨建国1
作者信息
- 1. 保山市农业科学研究院,云南 保山 678000
- 折叠
摘要
Abstract
The relationship between main agronomic traits and yield of maize was studied by correlation analysis,path analysis and grey correlation analysis based on the results of multi-point joint identification test of Maize in Yunnan Province in 2024.The results showed that among the main agronomic traits,the correlation degree with yield(correlation coefficient)was as follows:diameter(0.708 9)＞ear length(0.632 5)＞100 grain weight(0.538 1)＞rows per ear(0.512 1)＞seed yield(0.496 3)＞bald tip length(0.291 2)＞grains per row(0.218 0)＞ear height(-0.176 4)＞growth period(-0.177 8)＞plant height(-0.385 4)The contribution to yield(direct path coefficient)was as follows:ear diameter(0.381 0)＞ear length(0.345 5)＞seed yield(0.281 5)＞100 grain weight(0.243 1)＞rows per ear(0.206 6)>grains per row(0.157 8)＞ear height(0.155 8)＞bald tip length(-0.186 3)>growth period(-0.190 0)＞plant height(-0.196 8).The order of the correlation degree with yield was ear diameter(0.456 6)＞rows per ear(0.444 3)＞seed yield(0.409 0)＞ear length(0.392 8)＞bald tip length(0.369 0)＞100 grain weight(0.363 0)＞grains per row(0.347 0)＞growth period(0.269 2)＞plant height(0.250 3)＞ear height(0.231 3).The main factors affecting the yield of maize were ear diameter,ear length,seed yield and rows per ear.关键词
组合/农艺性状/产量/相关分析/通径分析/灰色关联分析Key words
Combination/Agronomic traits/Yield/Correlation analysis/Path analysis/Grey relational analysis分类
农业科技引用本文复制引用
陈国斌,刘婷婷,谢志坚,孟静娇,李琰聪,杨建国..18个玉米新组合主要农艺性状与产量的多重分析[J].大麦与谷类科学,2025,42(4):22-26,5.
