11个娃娃菜品种主要性状的相关与通径分析

摘要

The correlation and path analysis of 15 main characters in 11 baby Chinese cabbage varieties were carried out .The results of correlation analysis showed that the rough weight per plant was very significantly positively correlated with petiole width and leaf stalk thickness;the net weight per plant was significantly positively correlated with plant width , number of internal leaf , petiole width , and rough weight per plant;the edible rate was significantly ( or very significantly ) negatively correlated with number of outer leaf, and petiole length, and was significantly positively correlated with number of internal leaf , and net weight per plant .The path analysis indicated that stele height had the greatest positive contribution to rough weight per plant , while head width had the greatest negative contribution to it;petiole width had the greatest positive contribution to net weight per plant , while head width had the grea-test negative contribution to it;head width had the greatest positive contribution to edible rate , while maximum leaf length had the greatest negative contribution to it .%对11个娃娃菜品种的15个主要性状进行了相关分析与通径分析。相关分析结果表明：单株毛重与叶柄宽、叶柄厚呈极显著正相关；单株净重与株幅、内叶数、叶柄宽、单株毛重呈显著正相关；净菜率与外叶数、叶柄长呈显著或极显著负相关，与内叶数、单株净重呈显著正相关。通径分析结果表明：中柱高对单株毛重的正向贡献最大，叶球宽对其的负向贡献最大；叶柄宽对单株净重的正向贡献最大，叶球宽对其的负向贡献最大；叶球宽对净菜率的正向贡献最大，最大叶长对其的负向贡献最大。