通过对我省几个油菜推广品种产量构成的主要因素与产量的相关关系以及各因素的直接影响与间接影响的分析,为油菜育种工作进一步选育更高产的类型提供参考信息。 一、材料和方法 本研究于1981～82年进行,供试品种为近年我省选育的推广良种黔油9号、锦油1号、定油1号和凯油1号,以及在我省表现较好的优良品种西南302、湘选-6和甘油5号,共7个品种。田间随机区组设计,重复 Through the analysis of the relationship between the main factors and the yield of several varieties of rapeseed popularization in our province and the direct and indirect effects of the factors, it provides reference information for further breeding higher yield types of rapeseed breeding. I. MATERIALS AND METHODS The study was carried out in 1981-82. The tested varieties were the popularized varieties Guizhou Inay 9, Jinyou 1, Dingyou 1 and Kaiyou 1, which were bred in recent years in our province. The better performing varieties of southwest 302, Hunan election -6 and glycerol 5, a total of 7 varieties. Field randomized block design, repeat