烤烟与小麦套作和地膜覆盖对烤烟马铃薯Y病毒病发病率的影响

为了探索烤烟马铃薯Y病毒病（PVY）的有效防控措施,于2007～2008年在贵州省瓮安县分别对小麦与烤烟套作和地膜覆盖2种不同的栽培方式下的烤烟PVY发病率和病情指数进行研究。结果表明,烤烟与小麦套作能极显著降低烤烟的PVY发病率,与双行小麦双行烟相比,双行小麦单行烟栽培方式对防治烤烟PVY效果更好;地膜覆盖栽培较常规露地栽培能显著降低烤烟的PVY发病率。小麦与烤烟套作和地膜覆盖是防治烤烟PVY的有效手段,值得大面积推广。

Influence of Flue-cured Tobacco Interplanting with Wheat and Plastic Mulching on the Disease Incidence of Flue-cured Tobacco Potato virus Y

In order to explore the effective prevention and control measures of the disease of flue-cured tobacco Potato virus Y（PVY）,the investigation on disease incidence and disease index under flue-cured tobacco wheat interplanting and plastic mulching were performed in Weng’an country of Qian’nan state of Guizhou province in 2007 and 2008.The results indicated that interplanting with wheat can significantly reduce the incidence of PVY.Furthermore,compared with double rows of wheat interplanting with double line of flue-cured tobacco,dual-line wheat with single line flue-cured tobacco was better.In addition,plastic mulching also significantly decreased the incidence of PVY.Therefore,flue cured tobacco interplanting with wheat and plastic mulching were the effective means of prevention of flue-cured tobacco PVY,and it worth to be applyed in large area.