大豆科学2025，Vol.44Issue(6)：47-54,8.DOI:10.11861/j.issn.1000-9841.2025.06.0047
云南低纬高原区与玉米间作的大豆品种耐荫性评价
Evaluation of Shade Tolerance of Soybean Intercropping with Maize in Low Latitude Plateau Area of Yunnan Province
摘要
Abstract
To evaluate the shade tolerance of different soybean varieties under the condition of intercropping with maize in Yunnan,13 soybean varieties bred by the Institute of Food Crops,Yunnan Academy of Agricultural Sciences were used as test materials.These soybean varieties were intercropped with maize in a strip intercropping pattern in a natural shading environment.Appropriate shade tolerance identification indicators were selected,a soybean shade tolerance evaluation model was constructed,and their shade tolerance was systematically evaluated.By means of multivariate analysis methods such as correlation analysis and principal component analysis,the shade tolerance coefficients of 11 traits were statistically analyzed,and the shade tolerance and yield of the tested materials were systematically evaluated.The results showed that the shade tolerance coefficients of each index were converted into four uncoupled comprehensive indexes by principal component analysis,which covered 84.442%information.By means of systematic clustering,the comprehensive shade tolerance evaluation(D value)of 13 cultivated varieties were divided into 3 categories:weak shade tolerance type(2 varieties),medium shade tolerance type(8 varieties)and strong shade tolerance type(3 varieties).The regression model for shade tolerance evaluation was further constructed by stepwise regression:D=－ 0.878+0.973X1+0.754X7 － 0.072X11 －0.128X2,R=0.995,adjusted R2=0.986,and standard deviation of residual=0.020 56.According to the equation,plant height,seeds number per plant,lodging grade and bottom pod height can effectively identify the shade tolerance of Yunnan soybean and corn under belt intercropping.It was found that Yunhuang 22,Yunhuang 20 and Yunhuang 13 had higher yield per plant under intercropping conditions,and were suitable for intercropping with maize in Yunnan region(low latitude plateau).The medium shade tolerant variety Yunhuang 17 had better yield performance under net cropping conditions and was more suitable for net cropping of soybean in Yunnan Province.关键词
大豆/耐荫性/主成分分析/隶属函数法/聚类分析/逐步回归Key words
soybean/shade tolerance/principal component analysis/membership function method/cluster analysis/stepwise regression analysis method引用本文复制引用
谢镕洲,崔兴洪,张亮,刘和湖,孙淳皓,韩玉芝,赵银月..云南低纬高原区与玉米间作的大豆品种耐荫性评价[J].大豆科学,2025,44(6):47-54,8.基金项目
云南省重大科技专项计划"适于与玉米间套种品种的培育及应用"(202502AE090014) （202502AE090014）
国家现代农业产业技术体系建设专项(CARS-04-CES29) （CARS-04-CES29）
云南省油料产业技术体系(2025KJTX005). （2025KJTX005）
