黑龙江农业科学Issue(12)：23-26,27,5.DOI:10.11942/j.issn1002-2767.2016.12.0023
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
Correlation and Path Analysis Between Agronomic Traits and Yield per Plant in Oil-type Sunflower Hybrids
摘要
Abstract
In order to explore correlation between yield ,main agronomic traits ,direct and indirect effects of vari‐ous characters on yield of oil‐type 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 oil‐type sunflower hybrids were studied by correlation analy‐sis 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 hun‐dred 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 oil‐type sunflower hybrids ,setting percentage ,hundred seed weight ,seed number per plant ,head diameter and ker‐nel rate should be selected primarily ,days of growth ,leaves number per plant ,plant height and stem diameter also should be taken into consideration .关键词
油用向日葵/单株产量/农艺性状/相关分析/通径分析Key words
oil-type sunflower/yield per plant/agronomic trait/correlation analysis/path analysis分类
农业科技引用本文复制引用
梁春波..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[J].黑龙江农业科学,2016,(12):23-26,27,5.基金项目
黑龙江省青年基金资助项目（QC2015025）；黑龙江省农业科学院引进博士科研启动金资助项目（201507-38）；国家向日葵产业技术体系资助项目（CARS-16）；中塞政府间科技合作资助项目 （）
