主栽烟草品种对几种病害的抗性评价

The Resistance Evaluation of Flue-cured Tobacco Cultivars to Several Major Disease

[目的]研究烤烟主栽品种对主要烟草病害的抗性,为不同的病害流行地区、不同地块选择合适的烤烟品种提供依据.[方法]采用田间病圃人工接种诱发鉴定方法,鉴定了9个烤烟主栽品种对烟草黑胫病、烟草赤星病、TMV、南方根结线虫病的抗病性.[结果]2008 ～ 2012年的抗病性鉴定结果表明,云烟201、YH05和PVH19抗TMV,云烟100和PVH19对烟草赤星病的抗性为抗-中抗,云烟97、云烟98和云烟201抗烟草黑胫病,云烟97、云烟201和YH05对南方根结线虫的抗病性为抗-中抗.[结论]在TMV病害较重的地区可选择云烟201、YH05、PVH19,在赤星病较重的地区可选择云烟100和PVH19,试验所述主栽品种对烟草黑胫病的抗性均较好,而在南方根结线虫病较重的地区可选择云烟97、云烟99、云烟201、YH05.

[Objective] To research the resistance of flue-cured tobacco cultivars to major diseases and to provide the evidence for tobacco varieties selection in different epidemic area and fields.[Method] The identification and evaluation of 9 tobacco varieties resistant to Black shank,Brown spot,Tobacco mosaic virus （TMV） and Southern root-knot nematode were done by artificial inoculation in the field.[Result] From 2008 to 2012,the results indicated that Yunyan 201,YH05 and PVH19 is resistant to TMV,the resistance of Yunyan 100 and PVH19 to Brown spot were R-MR,Yunyan 97,Yunyan 98,Yunyan 201 resistant to Black shank,and the resistance of Yunyan 97,Yunyan 201 and YH05 to southern root-knot nematode were R-MR.[Conclusion] The varieties of Yunyan 201,YH05,PVH19 can be chosen in the areas of heavy TMV,in the areas of heavy Brown spot we can choose Yunyan100 and PVH19,the resistance of all of the varieties of tobacco is good to Black shank,while the southern root-knot nematode in areas of heavy clouds can choose Yunyan 97,Yunyan99,Yunyan201 and YH05 can be chosen in the area of heavy Southern root-knot nematode.