Symptoms on Tobacco Cultivars Caused by Chilli veinal mottle virus and Cultivars Disease Resistance Identification

The damage of tobacco caused by Chilli veinal mottle virus( ChiVMV) in China has increased,understanding ChiVMV symptoms on tobacco varieties and cultivars resistance could direct disease management. In this study,the symptoms and resistance to ChiVMV of 21 tobacco cultivars were elevated by mechanical inoculation in plastic tunnel. The typical symptoms of ChiVMV were chlorosis, yellowing,mosaic,blotch,leaf edge roll down. Cultivars of MD609,Basma 1 and Yunyan 97 were susceptible to ChiVMV,other 18 varieties( MSK326,MSYunyan 87,MSYunyan 85 and Honghuadajingyuan,etc.) were highly susceptible to ChiVMV. No variety was resistant to ChiVMV from the tested Yunnan tobacco varieties. More attention should be paid to the impact of ChiVMV on tobacco.