作　　者： ; ; ; ;

机构地区： 华南农业大学园艺学院

出　　处： 《华南农业大学学报》 2004年第2期118-120,共3页

摘　　要： 以花椰菜BrassicaoleraceaL.var.botrytis白杨品种研究花球产量与其他主要性状的关系并进行通径分析.结果表明,花椰菜生育过程植株、根、茎和叶鲜质量及叶面积均呈单峰曲线增长,叶质量、叶面积、株质量、花球茎直径、花球直径与花球质量存在极显著的正相关,并得出多元线性回归方程:花球质量=0 190×叶质量-0 009×叶面积+0 313×株质量-11 758×花球茎直径+23 828×花球直径-191 439(R2=0 958).通径分析表明植株质量和花球直径对花球质量有直接的显著影响,叶质量、叶面积和花球茎直径则是通过显著影响前二者而间接影响花球质量. The relationship of plant growth characters and curd yield in cauliflower (Brassica oleracea L. var. botrytis L. cv. Baiyang) was studied and analysised by path analysis. The results showed that the fresh mass of plant, root, stem and leaf, leaf area increased in single-peak curve. There were significant correlations among leaf mass, leaf area, plant mass, diameter of curd stem, curd stem diameter and curd mass respectively. There was a multiple linear regression equation: curd mass=0.190×leaf mass (-0.009)×plant leaf area+0.313×plant mass -11.758×diameter of curd stem+23.828×curd diameter -191.439 (R^2=0.958). The result of path analysis showed that there were significant direct effects of plant mass and curd diameter on curd mass, and indirect effects of leaf mass, leaf area and diameter of curd stem on curd mass by significant effects on plant mass and curd diameter.

关 键 词： 花椰菜 花球产量 产量性状 通径分析 植株质量 花球直径 叶质量 叶面积

领　　域： [农业科学] [农业科学]