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[目的]探讨我国西部地区芥菜型油菜农艺性状间的相互关系,为西部地区芥菜型油菜育种提供科学依据。[方法]以39份西部地区芥菜型油菜材料为对象,运用典型相关分析方法,对其产量性状(5个变量)、主茎性状(6个变量)、分枝性状(3个变量)、角果性状(4个变量)4组生态性状(共含18个变量)间的典型相关关系进行了研究。[结果]西部地区芥菜型油菜单株产量主要靠每株有效角果数取胜,每株角果总数、每角果粒数、千粒重的影响不明显;影响西部地区芥菜型油菜产量性状最重要的性状是主茎性状,其次是分枝性状和角果性状;西部地区芥菜型油菜产量性状、主茎性状、分枝性状、角果性状4组性状间均有密切的联系。[结论]要提高我国西部地区栽培芥菜型油菜产量性状,重点要抓好主茎性状,其次是分枝性状和角果性状;要选择每株角果总数、每株有效角果数优良的油菜品种应重点从有效分枝数、株高、主花序角果数、主花序果柄数等性状方面选择,要选择每角果粒数、千粒重优良的油菜品种应重点从果喙长度等性状方面选择。
[Objective] The research aimed to discuss the relationship among the agronomic traits of Brassica juncea in the western part of our country and provide the scientific basis for the breeding of Brassica juncea in the western part of China. [Method] With the analysis of canonical rapeseed (Brassica campestris spp.) From 39 western China, the correlations between yield traits (5 variables), main stem traits (6 variables), branching traits (3 variables) Four typical ecological traits (including 18 variables) were studied. [Result] The yield per plant of Brassica juncea in western China was mainly based on the number of effective pods per plant, and the effect of the total number of pericarp per plant, the number of per pod and the weight of 1000 seeds was insignificant. The most important factors affecting the yield traits of Brassica juncea in the western China The traits were the main stem traits, followed by the branching traits and the pododerms traits. The four traits of Brassica campestris, the yield traits, the main stem traits, the branching traits and the fruit traits in the west of China were closely related. [Conclusion] To improve the yield traits of Brassica juncea cultivated in the western region of our country, we should pay attention to the main stem traits, followed by the branching traits and the fruit traits. To select the total number of the traits, Varieties should focus on the number of effective branches, plant height, the number of main inflorescences, the main inflorescence stalks and other traits to choose from, to choose the number of grains per corner, 1000-grain weight rape varieties should focus on the beak length and other traits select.