油用型红花主要农艺性状与单株籽粒产量间的相关及通径分析  

The correlation and path analysis of the seed yield per plant and main agronomic traits in oil-type safflower(Carthamus tinctorius L.)

作　　者：官玲亮[1] 吴卫[1] 郑有良[2] 刘仁建[1] 刘雷[1] 

机构地区：[1]四川农业大学农学院,四川雅安625014 [2]四川农业大学小麦研究所,四川都江堰611830

出　　处：《西南农业学报》2007年第3期486-491,共6页Southwest China Journal of Agricultural Sciences

基　　金：四川省青年科技基金(05ZQ026-011)

摘　　要：对来自世界各地的50份油用型红花品种(系)的主要农艺性状进行相关和通径分析。相关分析结果表明,10个相关性状对单株粒重的影响顺序是单株有效果球数,总果球数,单株无效果球数,百粒重,总分枝数,二级分枝数,一级分枝数,株高,分枝高,顶花球直径。多元回归分析表明,单株有效果球数,总果球数,单株无效果球数,百粒重,顶花球直径是影响单株粒重的主要因素。通径分析表明,单株有效果球数,单株总果球数对产量的直接影响较大,是红花品种选育的主攻方向。综合考虑,单株产量高的油用型红花株型应是:株高和分枝数适中,单株有效果球数和总果球数多,无效果球少,顶果球直径和百粒重较大者。50 varieties（lines） of oil-type safflower came from all over the world were used to study the relationships between the seed yield per plant and main agronomic traits by using correlation and path analysis. The affected order of these factors to seed yield per plant was as follwes： number of effective cones per plant 〉 number of total cones per plant 〉 number of non-effective cones per plant 〉 100-seed yield 〉 number of total branches 〉 number of secondly branches 〉 number of primary branches 〉 plant height 〉 diameter of cones. Multiple regression analysis showed that number of effective cones per plant, number of total cones per plant, number of non-effective cones per plant, 100-seed yield and diameter of cones were the main traits affected seed yield per plant. The number of effective cones per plant and number of total cones per plant had more direct effect to the seed yield per plant. Both of them were the focus on the high yielding breeding and cultivation of safflower varieties. Totally, the high yield oil-type safflower varieties should be more number of effective cones per plant and number of total cones per plant, less number of none-effective cones per plan, higher 100-seed yield and diameter of cones, moderate plant height and number of branches.

关 键 词：红花 农艺性状 相关分析 通径分析 

分 类 号：S681.304.2[农业科学—观赏园艺]