DefinePK

Abstract

Capsicum annuum L. member of family Solanaceae is an important vegetable crop throughout the world. Fusarium wilt of chilli caused by Fusarium oxysporoum f.sp. capsici , is a serious destructive disease, which reduces its yield and is a major threat to the economy. Plant activators play an important role to manage soil born disease. In current study, a pot experiment was carried out under greenhouse conditions in the research area of Plant Pathology Department, University of Agriculture, Faisalabad. Five plant activators K 2 HPO 4 , CaCl 2 , Benzoic acid, Salicylic acid and Alpha-Tocopherol were used to manage the Fusarium wilt of chilli. Soil drenching of each plant activator was applied at three different concentrations 0.25%, 0.5% and 0.75% after transplantation. Results showed that the minimum incidence of disease, maximum length of shoot, length of root was revealed by K 2 HPO 4 at 0.75% concentration. While benzoic acid exhibit maximum shoot fresh weight, maximum shoot dry weight, fresh root weight and dry root weight at 0.75% concentration . Maximum fresh leaf weight showed by salicylic acid whereas maximum dry leaf weight exhibited by alpha-tocopherol at 0.75% concentration. It was concluded that K 2 HPO 4 at 0.75% concentration is effective to manage Fusarium wilt of chilli that can be used to manage disease in future .