LIANG Chunbo.Correlation and Path Analysis Between Agronomic Traits and Yield per Plant in Oiltype Sunflower Hybrids[J].HEILONGJIANG AGRICULTURAL SCIENCES,2016,(12):23-27.[doi:10.11942/j.issn10022767.2016.12.0023]
油用向日葵杂交种(组合)主要农艺性状与单株产量的相关及通径分析
- Title:
- Correlation and Path Analysis Between Agronomic Traits and Yield per Plant in Oiltype Sunflower Hybrids
- 文章编号:
- 10022767(2016)12002304
- 分类号:
- S565.5
- 文献标志码:
- A
- 摘要:
- 为探讨油用向日葵产量与主要农艺性状的相关性和各性状对产量的直接和间接效应,对20个油用向日葵杂交种(组合)的生育日数(X1),株高(X2),茎粗(X3),叶片数(X4),花盘直径(X5),单株粒数(X6),百粒重(X7),籽仁率(X8),结实率(X9)和单株产量(Y)进行相关分析和通径分析。相关分析结果表明:单株产量与结实率呈极显著正相关,与百粒重、单株粒数、生育日数、籽仁率呈显著正相关。通径分析结果表明:向日葵主要农艺性状对单株产量的直接作用大小依次为:百粒重>结实率>单株粒数>株高>籽仁率>花盘直径>生育日数>茎粗>叶片数。因此油用向日葵新品种的选育应首先考虑结实率、百粒重、单株粒数、花盘直径、籽仁率等主要性状,同时兼顾生育日数、叶片数、株高和茎粗等其它性状。
- Abstract:
- In order to explore correlation between yield,main agronomic traits,direct and indirect effects of various characters on yield of oiltype sunflower,nine traits days of growth(X1),plant height(X2),stem diameter (X3),leaves number per plant(X4),head diameter(X5),seed number per plant(X6),hundred seed weight(X7),kernel rate(X8)and setting percentage(X9) in 20 oiltype sunflower hybrids were studied by correlation analysis and path analysis.Correlation analysis showed that setting percentage (X9),hundred seed weight(X7),seed number per plant(X6) and kernel rate(X8) showed significantly positive correlations with the yield per plant.The results of path showed that the direct effect of nine traits on yield per plant followed the order:seed hundred seed weight(X7)>setting percentage (X9)>seed number per plant(X6)>plant height>kernel rate>head diameter>days of growth>stem diameter> leaves number per plant.In the breeding for high yield oiltype sunflower hybrids,setting percentage,hundred seed weight,seed number per plant,head diameter and kernel rate should be selected primarily,days of growth,leaves number per plant,plant height and stem diameter also should be taken into consideration.
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备注/Memo
收稿日期:20161116