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Crop Improvement
Year : 2005, Volume : 32, Issue : 1
First page : ( 95) Last page : ( 101)
Print ISSN : 0256-0933. Online ISSN : 2231-4563.

Effect of Bioagents and Fungicides Against Phomoposis Vexans and on Seed Quality of Brinjal

SriNivas C.*, Niranjana S.R., Shetty H.S.

Biocontrol Research Laboratory, Department of Studies in Applied Botany and Biotechnology, University of Mysore, Manasagangotri, Mysore-570006

*Department of Studies in Bio-Science, University of Mysore, postgraduate Centre, Hemagangotri, Hassan-573201, Karnataka, India, 08172-240578, 08172-240674, Srinivas_uom@rediffmail.com

Abstract

Seeds of five different cultivars of brinjal infected with a varied degree of Phomoposis vexans were treated with biocontrol agents. Pure cultures of Pseudomonas fluorescens and Trichoderma harzianum at the rate of 1 x 108 cfu g−1 and talcum based formulations of (28x107 cfu g−1) and (19x107 cfu g−1) at the rate of 5g/kg−1 and 10g/kg−1 of seeds were used, respectively. The treated seeds were evaluated for reduction of P. vexans, seed germination, vigour index and field emergence. It was found that a pure culture of P. fluorescens was more effective in reducing the P. vexans infection followed by T. harzianum than the fungicides treated and untreated seeds. Formulations of P. fluorescens were effective in reducing the P. vexans infection and also in increasing the seed germination, vigour index and field emergence, followed by T. harzianum and fungicide treatments in comparison with control.

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Index Words

Brinjal, Phomoposis vexans, seed quality, field emergence, biological agents.

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