Vol. 12, Issue 6 (2023)

Author(s):
Brindhadevi S, Thavapriya T, Tanusri Chamarthi, Thangaguruvu K, Tharun Prabu N, Durga Nandhini M and Jeevitha S

Abstract:
A survey was conducted for the collection and isolation of Trichoderma spp. in different districts of major tomato growing areas viz., Virudhunagar, Nellore, Namakkal, Salem, Theni Ramanathapuram, Sivaganagai, Coimbatore, Madurai, Srikazhi, Villupuram and Chidambaram. Twelve isolates of Trichoderma spp. were isolated from the rhizosphere soil of tomato. These isolates were screened against root rot pathogens. Among the twelve isolates tested, the isolate DVT-1 had maximum inhibition of 83.33 percent inhibition over control and with mean mycelial growth of Rhizoctonia solani of 1.50 cm under in vitro. Minimum percent inhibition over control was recorded by TTM-6 with 36.44 percent and mean mycelial growth of 5.72 cm.