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BIOLOGICAL CONTROL OF F. OXYSPORUM f. sp. LYCOPERSICI CAUSING WILT OF TOMATO BY PSEUDOMONAS FLUORESCENS

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Author(s): ASHA BB, CHANDRA NAYAKA S, UDAYA SHANKAR AC, SRINIVAS C, NIRANJANA SR

Journal: International Journal of Microbiology Research
ISSN 0975-5276

Volume: 3;
Issue: 2;
Start page: 79;
Date: 2011;
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Keywords: Pseudomonas fluorescens | formulation | mass production | seed quality | tomato wilt control

ABSTRACT
Pseudomonas fluorescens is one of the major fungal biocontrol agents found in the soil and the rhizosphere ofvarious crop systems. Ten isolates of P.fluorescens were isolated from rhizosphere soil samples collected from varioustomato-growing fields and evaluated for their efficacy in increasing seed quality variables of tomato and in inhibiting themycelial growth of Fusarium oxysporum. Pseudomonas isolate 2 produced effective results and was selected and massmultiplied. Talc and sodium alginate formulations of mass multiplied using different agents were prepared and evaluated fortheir effects against fusarium wilt under greenhouse conditions. Fresh cultures of Pf2 isolate was found to increase seedlingemergence and reduce fusarium wilt disease incidence when compared to the control and the formulations.

Tango Jona
Tangokurs Rapperswil-Jona

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