Correlation and Path Analysis of the Seed Yield Per Plant and Mainly Agronomic Traits in Safflower(Carthamus tinctorius L.)
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摘要：
为了分析不同红花品种主要农艺性状与单株籽粒产量的关系,对20个红花品种的10个农艺性状进行了相关和通径分析.结果证明,9个相关性状对单株籽粒产量的影响顺序是百粒重>单株有效果球数、二级分枝数>分枝长度>一级分枝数>茎粗>顶花球直径>株高>第一分枝高.多元回归分析表明,茎粗、一级分枝数、单株有效果球数、分枝长度、第一分枝高、百粒重为影响单株籽粒重的主要因素.通径分析发现,百粒重、一级分枝数对单株籽粒产量影响最大,因此,在适当控制茎粗、分枝长度、第一分枝高、单株有效果球数的基础上,将提高百粒重、一级分枝数作为红花品种的主要选育方向.
20varieties of safflower were used to study the relationships between the seed yield per plant and mainly agronomic traits by using correlation and path analysis.The affected order of these factors to seed yield per plant was as follows：100-seed yield,number of mon-effective cones per plant、number of secondly branches,high branch,number of primary branches,stem diameter,diameter of primary head,plant high,the distance of the first primary branches from the earth＇s surface.Multiple regression analysis is showed that stem diameter,number of primary branches、number of mon-effective cones per plant、high branch、the distance of the first primary branches from the earth＇s surface,100-seed yield were the main traits affected seed yield per plant.Path analysis is showed that 100-seed yield and number of primary branches had more direct effect to the seed yield per plant.So,we must focus on how to raise 100-seed yield and number of primary branches,and keep stem diameter、high branch、the distance of the first primary branches from the earth＇s surface、number of mon-effective cones per plant at moderate levels.
作者:
赵昕鹏 石晓卫 董天宇 高武军 邓传良 卢龙斗
机构地区:
betway官方app 生命科学学院 新乡医学院三全学院
出处：
《betway官方app 学报：自然科学版》 CAS 北大核心 2016年第6期140-144,共5页
基金：
国家自然科学基金(31000165)
关键词：
红花 农艺性状 单株籽粒产量 相关分析 通径分析
safflower agronomic trait seed yield per plant correlation analysis path analysis
分类号：
Q31 [生物学—遗传学]
