不同烤烟品种农艺性状与经济性状比较及灰色关联分析

Comparison and Grey Correlation Analysis Between Agronomic Traits and Economic Traits Among Different Flue-cured Tobacco Varieties

为探明不同烤烟品种主要农艺性状、经济性状的差异及相关性,以K326、云烟87、云烟105为材料,在采用Duncan′s法分析不同烤烟品种的农艺性状及经济性状差异的基础上,运用灰色关联法分析农艺性状及经济性状间的相关性。结果表明:农艺性状以云烟105的叶面积、株高、茎围表现较好,以云烟87有效叶片数、节距较佳,K326稍差;经济性状以云烟105的产量最高,云烟87的均价、产值最高,K326的上等烟率最高。农艺性状与经济性状的相关性分析表明,株高对产量的影响最大,有效叶片数与均价、产值的相关性最密切,茎围与上等烟率的关联度最高。不同烤烟品种主要农艺性状与经济性状有着极大的相关性,可通过栽培或改良品种等措施来改善烤烟的农艺性状,进一步提高烤烟的经济效益。

To explore the differences and correlations between the main agronomic traits and economic traits of different flue-cured tobacco varieties,K326,Yunyan 87,and Yunyan 105 were used as materials.Based on the differences of agronomic traits and economic traits among different flue-cured tobacco varieties analyzed by Duncan′s method,the grey correlation method was used to analyze the correlation between agronomic traits and economic traits.The results showed that in terms of agronomic traits,the leaf area,plant height,and stem circumference of Yunyan 105 exhibited better,while effective leaf number and pitch of Yunyan 87 exhibited better,while K326 had slightly worse agronomic traits.In terms of economic traits,Yunyan 105 had the highest yield,Yunyan 87 had the highest average price and output value,and K326 had the highest first-class tobacco rate.The correlation analysis between agronomic traits and economic traits showed that plant height had the greatest impact on yield,effective leaf number had the closest correlation with average price and output value,and stem circumference had the highest correlation with first-class tobacco rate.There is a great correlation between the main agronomic traits and economic traits among different flue-cured tobacco varieties.Measures such as cultivation or variety improvement can be taken to improve the agronomic traits of flue-cured tobacco and further enhance its economic benefits.