2012•BIOINFOLET - A Quarterly Journal of Life SciencesRequires access

Effect of bio control agents on growth and spore germination of Alternaria porri

M. Abdul Kareem, K. V. M. K. Murthy, M. A. Waseem, A. Nadaf Hasansab

Abstract

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.

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Key concepts: Pseudomonas fluorescens, Trichoderma viride, Trichoderma harzianum, Trichoderma, Germination, Spore, Horticulture, Trichoderma reesei