Biological control of fusarium wilt of tomato (Solanum lycopersicum L.) by antagonistic fungi

Abstract

A Field experiment was conducted during the Rabi season of 2017 at the main research field of department of horticulture, Naini Agricultural Institute, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad U. P. (India). To study the “Biological control of fusarium wilt of tomato (Solanum lycopersicum L.) By antagonistic fungi.” Under In Vitro, maximum radial growth was observed in Fusarium oxysporum f. sp. Lycopersici (90mm) and least radial growth was observed in Trichoderma harzianum (41.99mm). Among the three treatments viz., T1- Trichoderma harzianum, T2- Trichoderma viridae and T3- Aspergillus Niger. Maximum percent growth inhibition was recorded in Trichoderma harzianum (52.60%), which is followed by Trichoderma viridae percent growth inhibition (47.94%) and Aspergillus Niger percent growth inhibition (38.90%). Under In Vivo, twelve treatment i.e (T1) control, (T2) - F. oxysporum f. sp. lycopersici, (T3) - Trichoderma harzianum, (T4) - Trichoderma viridae, (T5) - Aspergillus niger, (T6) - F. oxysporum f. sp. lycopersici + T. harzanium, (T7) – F. oxysporum f. sp. lycopersici + T. viridae, (T8) - F. oxysporum f. sp. lycopersici + A. niger, (T9) - T. harzanium + T. viridae, (T10) - T. harzanium + A. niger, (T11) – T. viridae + A. niger, (T12) - F. oxysporum f. sp. lycopersici + T. harzanium + T. viridae + A. niger replicated three times each were carried out in the plot in Randomized block design. More over T12 treatment (F. oxysporum f. sp. lycopersici + T. harzanium + T. viridae + A. Niger) showed better result followed by T10 and T9.