Cu-chitosan nanoparticle induced plantgrowth andantibacterial activity against bacterial pustule disease in soybean[Glycine max (L.)]

Abstract

Indiscriminate use of pesticides and fertilizers causes loss of biodiversity, environmental pollution and emergence of agricultural pests and pathogens. Chitosan is a biocompatible, biodegradable and nontoxic polymer with various applications. In the present investigation, the efficacy of Cu-chitosan nanoparticles (NPs) to plant growth promotryactivity and antibacterial activity against bacterial pustule disease of soybean were evaluated.NPs treatments exhibited growth promotry effect in terms ofplant height, root length, root weight, nodule number, weight of nodule and number of pods per plant in pot experiments.In field experiment, plant height, root length, root weight, nodule number, weight of nodule and number of pods per plant weightwere enhanced in NPs treatments. Further, significant control bacterial pustule disease of soybeanwas recorded at 0.02 to 0.12% of Cu-chitosan NPs treatments in pot and 0.02 to 0.10% of NPstreatments in field condition.