Characterization of 124 Flue-cured Tobacco Germplasm Resources  

124份烤烟种质资源的特征特性研究(英文)

作　　者：许美玲[1] 肖炳光[1] 焦芳婵[1] 吴兴富[1] 

机构地区：[1]云南省烟草农业科学研究院,中国烟草育种研究(南方)中心,云南玉溪653100

出　　处：《Agricultural Science & Technology》2013年第2期286-294,383,共10页农业科学与技术（英文版）

基　　金：Supported by a grant from Yunnan Tobacco Company of China Tobacco Corporation(2010YN02)~~

摘　　要：[Objective] This study aimed to characterize 124 flue-cured tobacco germplasm resources, and to provide reference for making the best use of the existing flue-cured tobacco germplasm resources. [Method] A total of 124 flue-cured tobacco germplasm resources were studied via field experiment and statistic analysis to investigate characteristics of their growth period, morphologic characters, main agronomic traits, and economic characters. [Result] There were significant differences among the 124 flue-cured tobacco germplasm resources in growth period, morphologic characters, main agronomic traits, and economic characters. The coefficients of variation （CV） varied in a range of 7.9%-22.5%. Among them, CV of bud stage was higher, and that of corolla length was lower. Many germplasm resources were attacked seriously by black shank disease at the end of field experiment, including those with disease index higher than 90, like Kutsaga 110, TI706, Ky 151, KM10, Longshe, Chaoxian Kangchi, Kutsaga 51E, Yongding No.1, and those with disease index among 75-90 such as Liaoyan No. 8, Lingnong No.2, Shandong Duoye, 581, Cunjingyan, KRK26, and Special 400. The tobacco root knot nematode invasion was light in some germplasm or never happened in other germplasm resources. TMV happened sporadically. CV 87, Yunyan 99, Yunyan 85, K326, Yunyan 87, Zhubuo No.1, T64 and T66 produced higher yield, production value, proportion of good leaves and sold at a higher price. Finally, we screened out the germpalsm resources with good comprehensive economic values and high disease resistance such as CV 87, Yunyan 99, Yunyan 85, K326, Yunyan 87, Zhubuo No.1, T64, T66, Honghuadajinyan, G-28, Taiyan No. 8, 77089-12, Yunyan 97, K346, V2, K149, NC567, NC297, Yunyan 201, Yunyan 203, KRK22. [Conclusion] This study provides reference for making better use of tobacco germplasm resources, and breeding new varieties.[目的]研究烤烟种质特性,以期为充分利用现有的烟草种质资源奠定基础。[方法]以124份重要的烤烟种质资源为试验材料,对其进行田间鉴定和统计分析,研究其种质特性。[结果]参试种质在生育期、形态特征、主要农艺性状、经济性状等方面差异较大,变异系数在7.9%～22.5%之间,现蕾期较高,花冠长度较低。后期黑胫病严重(病指>90)的种质有:Kutsaga110、TI706、Ky151、KM10、龙舌、朝鲜抗赤、Kutsaga51E、永定一号等;发病较重(病指75～90)的种质有:辽烟8号、灵农二号、山东多叶、581、寸茎烟、KRK26、Special400等。根结线虫病发生较轻或不发病,TMV零星发生。CV87、云烟99、云烟85、K326、云烟87、筑波1号、T64、T66等种质产量、产值、上等烟比例、均价较高。试验筛选出了CV87、云烟99、云烟85、K326、云烟87、筑波1号、T64、T66、红花大金元、G-28、台烟8号、77089-12、云烟97、K346、V2、K149、NC567、NC297、云烟201、云烟203、KRK22等综合经济性状和抗病性较好的种质推荐给育种利用。[结论]该研究结果为更好地利用烟草种质资源、选育更多新品种奠定了试验基础。

关 键 词：Flue-cured tobacco Germplasm resources Cluster analysis Economic characters Agronomical characters 

分 类 号：S572[农业科学—烟草工业]