Vol. 11, Issue 5 (2022)

Author(s):
Shivam Kumar, SK Biswas, Arshad Husain, Kishan Lal, Saurabh Kumar, and Ravi Kumar

Abstract:
The prepared vermicompost had used alone or in combination with bio-agents, bio-fertilzer, and foliar application of fungicide in pot culture experiment at Glass house complex at Department of Plant Pathology, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur during 2018-19 and 2019-20. The maximum germination (%) was recorded in T₁₀ treatment as soil application with PGPR + Vermicompost (6gm+300gm) and two foliar spray with propiconazole (vegetative stage and booting stage) representing 95.57% and 99.58%, respectively. The maximum seed viability as 88.20% and 91.66% also was recorded in T₁₀ treatment (Soil application with PGPR + Vermicompost (6gm+300gm) and two foliar sprays with propiconazole at vegetative stage and booting stage). Seedling emergence (%) highest was recorded in T₁₀ treatment as 97.67% and 98.18%. respectively. The highest level of vigor index was found in T₁₀ treatment as soil application of PGPR + Vermicompost (6gm+300 gm), two foliar spray with propiconazole (vegetative stage and booting stage) representing 6500.67 and 7061.21 against 1811.75 and 1830.89 in case of Control-1 and Control-2 respectively. The maximum activity of salicylic acid was found in T₁₀ treatment as soil application with PGPR + Vermicompost (6gm+300gm) and two foliar spray with propiconazole (vegetative stage and booting stage) indicating 0.72, 0.88, 1.12 and 0.85 (mg/g) of fresh leaves against 0.26, 0.31, 0.38 and 0.28 mg/g in case of control-1 and 0.28, 0.35, 0.42 and 0.33 mg/g in case of control-2 at 10, 20, 30 and 40 days of pathogen inoculation, respectively during 2018-19. The similar trend of increase activity of salicylic acid was noticed during 2019-20. The increased activity of salicylic acid in plants might be responsible for defense response in plant against B. sorokiniana.