烤烟抗赤星病种质资源的农艺性状及烤后烟叶化学成分分析

　　摘要：【目的】分析抗赤星病烤煙种质资源的农艺性状及其化学成分，为烤烟育种亲本选择及种质资源充分利用提供参考。【方法】采用大田试验方法对24份抗赤星病烤烟种质资源的大田生育期、农艺性状、经济性状及化学成分进行研究，并进行主成分分析和系统聚类分析。【结果】参试烤烟种质资源生育期存在明显差异，较适宜的种质资源有净叶黄、中烟86、云烟110、云烟100和晓丰8号；综合农艺性状表现较优的种质资源有云烟100、云烟110、晓丰8号、8813、福烟6号和龙江911；主要经济性状较优的种质资源有云烟100、云烟110、晓丰8号、YA-2、惠水-1、惠水-2和紫江1号；中部烟叶内在化学成分含量较协调的种质资源有云烟100、云烟110、Oxford 26、单育2号和惠水-1；主成分分析综合得分较高的种质资源有YA-2、惠水-1、紫江1号、云烟100、9042、惠水-2、Coker spedlgreed、YQ-1、福烟6号和云烟110。【结论】各类烤烟抗赤星病种质资源特点差异明显，其中YA-2、惠水-1、紫江1号、云烟100、9042、惠水-2、Coker spedlgreed、YQ-1、福烟6号和云烟110等10份种质资源综合得分较高，可作为亲本材料用于烤烟抗赤星病新品种选育。
　　关键词： 烤烟；种质资源；赤星病；农艺性状；化学成分
　　中图分类号： S572.024 文献标志码：A 文章编号：2095-1191（2018）05-0839-09
　　Abstract：【Objective】The agronomic traits and chemical compositions of tobacco germplasm resources resistant to brown spot disease were analyzed in order to provide reference for the parent selection of tobacco breeding and full utilization of the germplasm resources. 【Method】The experiment was conducted in field， the field growth period， agronomic traits， economic characters and chemical compositions of 24 tobacco germplasm resources that were resistant to brown spot disease were analyzed， and principal component analysis and hierarchical cluster analysis were also conducted. 【Result】The results showed that the growth period of all 24 tobacco germplasm resources showed great differences. The germplasm resources with suitable field growth period were Jingyehuang， Zhongyan 86， Yunyan 110， Yunyan 100 and Xiaofeng No.8. Besides， Yunyan 100， Yunyan 110， 8813 and Xiaofeng No.8 were the germplasm resources with sound comprehensive agronomic traits. Yunyan 100， Yunyan 110， Xiaofeng No.8， YA-2， Huishui-1， Huishui-2 and Zijiang No.1 were the germplasm resources with fine main economic characters. Yunyan 100， Yunyan 110， Oxford 26， Danyu No.2 and Huishui-1 were the germplasm resources with coordinated chemical composition in middle tobacco leaves. YA-2， Huishui-1， Zijiang No.1， Yunyan 100， 9042， Huishui-2， Coker spedlgreed， YQ-1， Fuyan No.6 and Yunyan 110 were the germplasm resources obtaining high comprehensive score in principal component analysis.【Conclusion】There are great differences among various tobacco germplasm resources that are resistant to brown spot disease. Ten germplasm resources， including YA-2， Huishui-1， Zijiang No.1， Yunyan 100， 9042， Huishui-2， Cokers pedlgreed， YQ-1， Fuyan No.6 and Yunyan 110， obtain high comprehensive score， so they can be used as parent materials for the breeding of new toba-cco varieties that are resistant to brown spot disease.

相关热词搜索：种质 农艺 烤烟 性状 烟叶