BIO-EFFICACY OF Trichoderma harzianum SPORE CONCENTRATIONS ON TOMATO PRODUCTION

An experiment was accomplished in the Horticulture farm of Sher-e-Bangla Agricultural University, Dhaka during the period from October 2017 to March 2018 to evaluate the bio efficacy of spore concentration of Trichoderma harzianum on tomato. Three tomato varieties viz. Roma-VF (V₁), BARI Tomato-2 (V₂), Apple Netherland (V₃), and Trichoderma harzianum: No Trichoderma applications (T₀), 106spores/ml (T₁), 107 spores/ml (T₂) were used in this study with three replications following Randomized Complete Block Design. Data on different growth and yield attributes parameters were taken in which all the treatment showed significant variations. Among varieties, Roma VF variety had prominent yield (90.3 t ha^-1) and among trichoderma treatment 107 spores/ml application had a synergistic effect on yield/ha (89.8 t). The combination of variety (V₁) and trichoderma (T₂) application increased growth and yield attributes significantly and influenced higher yield than other treatment. Therefore, Trichoderma application on tomato varieties could be the potential for tomato production.