苗用型大白菜单株产量与主要农艺性状关系分析  

Correlation analysis between yield per plant and main agronomic traits of seeding-edible Chinese cabbage

作　　者：张淑霞[1] 杨晓云[1] 张清霞[1] 司朝光[1] 宋永骏 ZHANG Shuxia;YANG Xiaoyun;ZHANG Qingxia;SI Chaoguang;SONG Yongjun(Qingdao Academy of Agricultural Science,Qingdao 266100,Shandong,China)

机构地区：[1]青岛市农业科学研究院,山东青岛266100

出　　处：《中国瓜菜》2023年第7期65-69,共5页China Cucurbits And Vegetables

基　　金：青岛市科技惠民示范引导专项-速生型和小棵型大白菜新品种选育与应用(22-3-7-xdny-3-nsh)。

摘　　要：以16份苗用型大白菜组合及品种为试验材料,对其单株产量和10个主要农艺性状进行相关性分析、通径分析和回归分析,探求苗用型大白菜单株产量与主要农艺性状的关系。相关性分析表明,单株产量与最大叶叶长、叶宽、叶柄长、叶柄宽及叶柄厚度的相关性达到极显著水平;通径分析表明,对产量的直接效应影响依次为最大叶叶柄宽>最大叶叶柄长>株高>叶片数>最大叶叶宽>最大叶叶长>最大叶叶柄厚>中心柱宽>开展度>中心柱长。回归分析中建立起最优回归方程:Y=15.157-4.666X_(1)-9.903X_(3)+8.315X_(6)+66.664X_(7),但只有最大叶叶柄宽的偏相关系数达到极显著水平。综上所述,在苗用型大白菜新品种培育过程中,亲本材料的最大叶叶柄宽是选育高产品种的重要指标。The 10 major agronomy traits were analyzed by correlation analysis,path analysis and regression analysis on the yield per plant with 16 seedling-edible Chinese cabbage.It is to explore the relationship between yield per plant and main agronomic traits of seedling-edible Chinese cabbage.The results of correlation analysis showed that the correlation between yield per plant and maximum leaf length,leaf width,maximum leaf petiole long,petiole width,and petiole thickness reached extremely significant level;the results of path analysis indicated that the direct effect on the yield per plant is the maximum leaf petiole width>maximum leaf petiole length>plant height>outer leaf number>maximum leaf width>maximum leaf length>maximum leaf petiole thickness>central column width>development degree>central column length.In the regression analysis,the optimal regression model was Y=15.157-4.666X_(1)-9.903X_(3)+8.315X_(6)+66.664X_(7).However,only the partial correlation coefficient of the the maximum leaf petiole width reached a significant level.In summary,the maximum leaf petiole width among the pro-based materials in the cultivation of new seedling-edible Chinese cabbage varieties is an important indicator of raising high products.

关 键 词：苗用型大白菜 单株产量 农艺性状 相关性分析 通径分析 回归分析 

分 类 号：S634.1[农业科学—蔬菜学]