Abstract
The fungitoxic effects of 10 isolates of Pseudomonas fluorescens from various parts of Tamil nadu were evaluated under in vitro conditions on growth of Colletotrichum capsici, the causal agent of chilli fruit rot. The identity of P. fluorescens was confirmed by DNA sequence analysis of the isolates. P. fluorescens PI-1 was the most effective showing 75.6% inhibition of colony growth with minimum mean mycelial growth (4.7 cm) of the pathogen. The aim of this research work was to study the use of biocontrol agents as an alternative to fungicides in the control of fruit rot of chilli. Key words: Polymerase chain reaction (PCR) analysis, disease management, plant growth promotion.
Highlights
Effica acy of Pseud domonas fluo oresce ens on contro ol of chilli fruitt rot ca aused by Co olletotrrichum m capsiici
Th he aim of th his research h work was to study the e use of biocontrol agents a as an n alternative to fungicides s in the conttrol of fruit ro ot of chilli
A similar study was carried out by Scarpellini et al (2004) who reported the amplification of single DNA fragment of 850 bp of 16S rRNA for P. fluorescens
Summary
The fungito oxic effects of 10 isolates of Pseud domonas flu uorescens fro om various parts of Tam mil nadu were evalua ated under in n vitro conditions on gro owth of Collletotrichum c capsici, the c causal agentt of chilli fruit rot Th he identity of o P. fluoresc cens was co onfirmed by DNA seque ence analysis of the iso olates. Fluorescens s PI-1 was th he most effec ctive showing 75.6% inhiibition of colony growth with minimu um mean mycelial grrowth (4.7 cm) Th he aim of th his research h work was to study the e use of biocontrol agents a as an n alternative to fungicides s in the conttrol of fruit ro ot of chilli.
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