烤烟主要性状配合力和相关性研究

Combining Ability and Correlation of Primary Characters of Flue-cured Tobacco

选用 7个烤烟品种作亲本 ,采用Griffing方法I,利用 7× 7完全双列杂交 ,对烤烟产量、产值、上等烟比例、均价和级指等主要经济性状配合力和相关性进行研究 ,结果表明 :各农艺性状和经济性状的遗传特性同时受基因加性效应、非加性效应以及反交效应的共同作用。从经济性状来看 ,以红花大金元和云烟 317作亲本之一 ,特别是红花大金元作母本配制的杂交组合优势较强。以净叶黄作为亲本之一配制的杂交组合没有优势 ,显示出各组合的产量、产值等经济性状较低。

Using Seven flue-cured tobacco varieties as parents, combining ability and correlation of primary characters such as yield, economic value, classy leaf rate, average price perkg, grade index were studied by applying 7×7 complete diallel cross and Griffing method I. The results showed that agronomic and economic characters were affected by additive, non-additive effects and reciprocal cross effect. The economic characters showed high heterosis when Honghuadaijinyuan and Yunyan 317 were used as one of parents, especially Honghuadaijinyuan as mother . But there was no heterosis when Jingyihuang was used as one of parents, with lower yield and economic value.