Antifungal Potential of Plant Extracts against Alternaria solani, causing Early Blight of Tomato

Abstract

Abstract Aqueous extracts of five plants with anti-microbial properties were evaluated for suppression of growth of Alternaria solani in laboratory conditions. At low concentration of 2%, four extracts including (Azadirachta indica) failed to suppress the growth. One extract ( Putranjiva roxburghii) showed significant suppression of pathogen growth at low concentration, according to Analysis of variance, Tukey’s post-test. Some extracts (Melia azedarach and Tabernaemontana divaricata ) on the contrary promoted the growth significantly more than the negative control. Discovery of a plant with better anti-fungal property than Azadirachta indica is a significant out-come of the investigation. Putranjiva roxburghii extract shows potential for management of an early blight of tomato in organic farming and for the isolation of bioactive molecule. Keywords: Plant extracts, anti-fungal, Alternaria, early blight, organic, tomato Cite this Article Heminder Singh, Gurpreet Kaur, Gurvarinder Kaur et al . Antifungal Potential of Plant Extracts against Alternaria solani, causing Early Blight of Tomato. Research & Reviews: Journal of Crop Science and Technology . 2018; 7(1): 22–26p.