Defense response of Trichoderma sp. on tomato seedlings through biochemical analysis (in-vitro)

Abstract

Tomato wilt caused by Fusarium oxysporum f.sp. lycopersici is most important and destructive disease of tomato in Uttar Pradesh, which causes considerable losses in yield of tomato. Therefore, present studies were undertaken to test the efficacy of two fungicides, three bioagents and soil amendments in vitro Azad T-6 varieties of tomato in green house against Fusarium wilt of tomato Among the highest chlorophyll content was also observed in Seedlings treatment with vermicompost 3.110 (0.855 chl. A and 2.250 chl. B) followed by poultry manure as 2.596 (0.759 chl. The maximum protein content was continuously higher (all three week) in the Seedlings treatment Trichoderma viride (T-05), followed by Neem cake in soil amendment. The maximum PPO activity was found in Soil apply with poultry manure followed by the vermicompost and FYM plants on the pathogen challenge respectively.