Department of Plant Pathology, Agricultural College, Bapatla, Andhra Pradesh
Online published on 24 August, 2012.
Trichoderma viride (88.65%) and Trichoderma harzianum (86.85%) were highly effective in inhibiting growth of A. porri in vitro followed by Trichoderma koningii (76.58%) and Pseudomonas fluorescens (72.55%). Least inhibition (68.50%) was noticed with Trichoderma resei. Similarly highest reduction in spore germination was observed in Trichoderma viride (81.65%) which was significantly superior to all other bio-control agents tested. Next best was Trichoderma harzianum (76.72%), followed by Trichoderma koningii (68.50%) and Pseudomonas fluorescens (57.33%). Least inhibition (41.50%) was noticed with Trichoderma reesei.
Biocontrol agents, Alternaria porri, Spore germination and Fungal growth
