中国农学通报2026，Vol.42Issue(6)：31-40,10.
西藏地区引种油菜的农艺性状综合评价与适应性分析
Comprehensive Evaluation and Adaptability Analysis of Rapeseed Agronomic Traits in Xizang
摘要
Abstract
To explore the introduction adaptability of Brassica napus in the spring rapeseed region of Xizang and broaden the local rapeseed germplasm resources,this study conducted an introduction trial using Brassica napus varieties from various ecological regions across the country.Using principal component analysis,and membership function analysis,the agronomic traits of multiple varieties were comprehensively evaluated.The results showed that the growth duration of the tested varieties ranged from 130.9 to 141.6 days,exhibiting significant genetic variation with a variation coefficient ranging from 0.15 to 0.32.The yield ranged from 908.8 to 4302.2 kg/hm2.The average yield of rapeseed of the Huang-Huai-Hai Region was the highest at 3259.9 kg/hm2.Regarding major agronomic traits,the number of silique on the main raceme,the number of silique per plant,branch position,and thousand-grain weight could serve as key indicators for evaluating the adaptability of Brassica napus in Xizang.Principal component and membership function analysis indicated that among the top 10 varieties in terms of comprehensive agronomic traits,two were from the Huang-Huai-Hai Region,one from the upper Yangtze River Region,and seven from the middle Yangtze River Region.Considering the proportion of outstanding varieties among the total tested varieties in each region and the average yield of varieties in each region,the Huang-Huai-Hai and the middle Yangtze River Region performed relatively better.These varieties showed a relatively balanced performance in plant morphology and yield formation,and were superior to the local main-cultivated varieties in Xizang in terms of growth vigor and high-yield potential,possessing good demonstration and promotion potential.The comprehensive analysis demonstrated that the introduction of rapeseed varieties from the Huang-Huai-Hai and the middle Yangtze River Region in Xizang exhibited relatively superior comprehensive agronomic traits.In the future,targeted introduction of varieties from these regions could further enhance the planting efficiency and germplasm improvement level of rapeseed in Xizang.关键词
油菜/引种/适应性/农艺性状/产量/主成分分析/隶属函数分析/综合评价/西藏Key words
rapeseed/introduction/adaptability/agronomic traits/yield/principal component analysis/membership function analysis/comprehensive evaluation/Xizang分类
农业科技引用本文复制引用
李施蒙,南志强,白玛央珍,王晋雄..西藏地区引种油菜的农艺性状综合评价与适应性分析[J].中国农学通报,2026,42(6):31-40,10.基金项目
拉萨市重点科技计划"抗旱抗寒甘蓝型油菜新种质挖掘与新品种选育"(LSKJ202430) （LSKJ202430）
西藏自治区农牧科学院农业研究所统筹项目(NYSTC202409). （NYSTC202409）
