Effects of different cultivation measures and varieties on tobacco bacterial wilt and black shank
In order to effectively control tobacco bacterial wilt and black shank,this experiment studied the effects of different transplanting methods(conventional transplanting,well cellar transplanting,and transplanting seedlings under the membrane),tobacco varieties(K326,Guiyan No.8,Guiyan No.5,Yunyan 85,Yunyan 105,Xiangyan No.7,and Yunyan 87),mulching methods(white film,black film,and not covering with film),and stem perforation positions(5,15,and 25 cm form the ground)on tobacco wilt and black shank.The results showed that the incidence of transplanting seedlings under film was the lowest among the 3 transplanting methods.Among the 3 film mulching methods,black film had the lightest incidence;the occurrence of bacterial wilt and black shank could be significantly reduced by perforation at 5 cm from the ground after the onset of tobacco plant.Among the 7 tobacco varieties,the incidence of Xiangyan No.7 was the lowest,which was highly resistant to bacterial wilt and black shank.The research results can provide a reference for scientific and effective prevention and control of tobacco bacterial wilt and black shank.
万方数据
维普
