Study on Control Effect of Plant Organic Induced Resistant Agent of "Polypeptide-product" Against TMV

In order to seek one which is different from traditional potions to control TMV in tobacco production,materials of HD and YK01 were used to explore plant organic induced resistant agent of Polypeptide-Product controlling effect to TMV in the experiment.The results showed that Polypeptide-product was helpful to cultivate vigorous seedlings,improving tobacco plant nutrition and inducing tobacco plants systemic acquired resistance.The control effect to TMV could be achieved more than 91.8% in the stage of the seedling.The control effect is varied by different materials.The Control effcets to TMV for susceptible YK01 could achieved above 21.8% and above 80.1% for HD after transplanting 35 days.Polypeptide-Product will become a good application prospect in tobacco production because of low cost,simple operation,and non-poisonous and harmless to environment.