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当前位置: 首页 > 文章 > 高低海拔下甘蓝型油菜产量与其构成因素相关性分析 湖南农业科学 2018 (11) 26-28
Position: Home > Articles > Correlation Analysis of Yield and Components of Brassica Napus at High and Low Altitudes Hunan Agricultural Sciences 2018 (11) 26-28

高低海拔下甘蓝型油菜产量与其构成因素相关性分析

作  者：
张一博;陈亮;关周博
单  位：
西北农林科技大学农学院;陕西省杂交油菜研究中心
关键词：
海拔高度;甘蓝型春油菜;产量构成因素;灰色关联度分析
摘  要：
以9个高油、双低优质甘蓝型春油菜新品种为材料,在2个不同海拔高度地区进行对比试验,应用灰色关联度分析法探究海拔高度对油菜产量与产量构成因素间的影响。结果表明:在高海拔条件下,株高、一次有效分枝数和主花絮有效角果数与产量的关联度较高;在低海拔条件下,千粒重、每角粒数和主花絮有效角果数与产量的关联度较高;同时在不同海拔高度下,单株有效角果数、分枝高度和主花絮有效长度的关联度位次基本一致,表明上述3个性状与产量的关系受海拔条件影响相对较小。试验结果还发现,不同海拔条件下,与产量关联作用较大的性状特点也不同,说明产量的提高仅关注产量构成三因素是不够的,还应综合考虑不同海拔条件下关联度大的的性状。
译  名：
Correlation Analysis of Yield and Components of Brassica Napus at High and Low Altitudes
作  者：
ZHANG Yi-bo;CHEN Liang;GUAN Zhou-bo;College of Agriculture, North West Agriculture and Forestry University;Shaanxi Hybrid Rape Research Center;
单  位：
ZHANG Yi-bo%CHEN Liang%GUAN Zhou-bo%College of Agriculture, North West Agriculture and Forestry University%Shaanxi Hybrid Rape Research Center
关键词：
altitude;;spring Brassica napus;;yield components;;grey correlation analysis
摘  要：
Nine new high-oil, double-low high-quality spring brassica napus varieties were used as materials to conduct comparative experiments at two different altitudes. The relationship between yield and yield components of brassica napus at high altitudes was explored by grey correlation analysis. The results showed that plant height, number of effective branches at one time and number of effective pods in main stem had higher correlation with yield at high altitude. At low altitude, the correlation degree between 1 000-grain weight, seed number per pod, the number of effective pods per main stem and yield was higher. At the same time, at different altitudes, the correlation degree of effective pod number per plant, branch height and effective length of main stem was basically the same, indicating that the relationship between the above three traits and yield was relatively less affected by altitude conditions. The results also showed that the characteristics of the traits that had a greater correlation with yield at different altitudes were different, which indicated that it was not enough to pay attention to only three factors of yield composition, but also to consider the characteristics of high correlation under different altitudes.

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