Vol. 9, Special Issue 10, Part R (2025)

An experiment was carried out on “Response of Biostimulants and Biopesticides on Growth, Yield and Quality of Tomato (Solanum lycopersicum L.) under Malwa Conditions of Madhya Pradesh” at the Experimental field, Department of Horticulture, College of Agriculture, Indore, Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, Gwalior (M.P.) during the Rabi season 2024-25. The experiment was laid out in randomized block design with nine treatments and three replications. Treatments included bio-stimulants (Amino Acids @ 2 ml/L, Seaweed Extracts @ 2 ml/L), biopesticides (Bacillus thuringiensis @ 5 ml/L, Trichoderma sp. @ 5 g/L), and their combinations. Results revealed significant differences among treatments for growth, yield, and quality parameters. The combination of Seaweed Extracts + Trichoderma sp. (T₈) recorded the highest plant height, number of branches and leaves per plant, internode length, leaf area, and leaf area index at 15, 30, and 45 days after transplanting. T₈ also performed best in terms of early flowering and fruiting, number of flowers per cluster, and flower clusters per plant. Maximum yield per plant (1.91 kg), per plot (30.61 kg), and per hectare (637.84 q) were obtained in T₈, along with highest TSS (5.21 °Brix), titratable acidity (5.57 g/L), ascorbic acid (20.76 mg/g), and lower physiological loss in weight (11.26%). T₈ also showed the lowest disease intensity and pest incidence, and the highest benefit-cost ratio (1:4.8), making it the most effective treatment for enhancing tomato growth, productivity, and quality.