摘要
为明确区域试验中适宜不同种植密度大豆品种主要农艺性状与产量的相关性,文章采用逐步回归、相关性分析和通径分析方法,对2023年河南省夏大豆区域试验普通C组和高密组26个品种产量与农艺性状相关性进行分析。结果表明,2个种植密度组别参试品种仅生育期存在显著差异,产量及其他农艺性状差异不显著。在产量相关农艺性状中,单株粒数对提高产量的正效应最大。普通C组参试品种中,百粒重对提高产量具有正效应,单株粒重具有负效应;高密组参试品种中,百粒重对提高产量具有正效应,单株粒重和生育期具有负效应。在耐密植大豆新品种选育过程中,应注重单株粒数和百粒重选择,在生育期较短材料中更易选育获得耐密植栽培品种。
To clarify the correlation between the main agronomic traits and yield of soybean varieties suitable for different planting densities,the article applied stepwise regression,correlation analysis,and path analysis methods to analyze the correlation between yield and agronomic traits of 26 varieties,including ordinary C group and high-density group in 2023 Henan Province summer soybean regional trial.The results showed that there was a significant difference in the growth duration between the two groups,while yield and other agronomic traits did not differ significantly.Among the agronomic traits correlated with yield,the number of pods per plant had the most substantial positive effect on yield enhancement.Moreover,in the standard density group,the hundred-seed weight positively influenced yield,whereas the weight per plant had a negative impact.In the high-density group,the hundred-seed weight positively affected yield,while the weight per plant and the growth duration negatively impacted yield.The above results suggested that in the process of breeding new high-yielding soybean varieties,emphasis should be placed on the selection of the number of grains per plant and the weight of a hundred grains.It was easier to cultivate varieties suitable for high-density planting from materials with shorter growth periods.
作者
昝凯
柴语潼
牛静
王铭
陈亚光
牛永锋
ZAN Kai;CHAI Yutong;NIU Jing;WANG Ming;CHEN Yaguang;NIU Yongfeng(Anyang Academy of Agricultural Sciences/Henan Province High Quality Soybean Improvement Engineering Technology Center/Henan Province Soybean Germplasm Resources Innovation and Utilization Engineering Research Center,Anyang 455000,Henan,China)
出处
《大豆科技》
2025年第4期29-34,共6页
Soybean Science & Technology
基金
河南省农业良种联合攻关项目(2022010304)
安阳市科技攻关计划项目(2022C01NY008)。
关键词
种植密度
产量
农艺性状
逐步回归
通径分析
Plant density
Yield
Agronomic traits
Stepwise regression
Path analysis
