Abstract

For breeding and using resistant varieties and effectively controlling tobacco diseases,the resistance of 9 new introduced tobacco varieties to TMV,tobacco black shank and tobacco brown spot diseases was tested with artificial inoculation.The results indicated that PVH2254,PVH2306 and PVH2299 were highly resistant to TMV,resistant to tobacco black shank and moderately resistant to tobacco brown spot.RGH04 was highly resistant to TMV,resistant to tobacco black shank,moderately susceptible to tobacco brown spot.PVH2110 and K326PVY were moderately resistant to tobacco black shank and brown spot,susceptible to TMV.PVH1452 was resistant to tobacco black shank,susceptible to TMV and moderately susceptible to tobacco brown spot.NC71 was resistant to tobacco black shank,moderately susceptible to TMV and tobacco brown spot.

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