津巴布韦引进烤烟品种对黑胫病的抗性鉴定

Resistant Identification of Tobacco Introduced from Zimbabwe to Black Shank

[目的]筛选对黑胫病抗性较好的烤烟品种。[方法]2010年对引进的14份津巴布韦烤烟品种进行了黑胫病抗性鉴定。[结果]品种KRK1、KRK8、KM10的病情指数在90.00～96.29,表现为高感;品种KE1、T62、KRK23、KRK26、T29、KRK28的病情指数在64.19～78.89,表现为感病;品种T64、T27、KRK22、T65的病情指数在46.92～57.04,表现为中感;仅品种T66表现为中抗。[结论]为优良烤烟品种的推广提供了理论依据。

[ Objective ] The aim was to screen out tobacco varieties with good resistance to black shank. [ Method] The resistance of 14 tobacco varieties introduced from Zimbabwe to black shank was identified in 2010. [ Result ] The disease indexes of three tobacco varieties （ KRK1, KRK8 and KM10） ranged from 90.00 to 96.29, showed highly resistance. The disease indexes of six tobacco varieties （KE1, T62, RK23, KRK26 ,T29 and KRK28） ranged from 64. 19 to 78.89, showed susceptible. The disease indexes of four tobacco varieties （T64 ,T27, KRK22 and T65 ） ranged from 46.92 to 57.04,showed moderately susceptible. Only T66 showed moderately resistance. [ Conclusion] The research provides theoretical ba- sis for the generalization of good tobacco varieties.