In vitro Bio control Efficiency of Bacterial Endophytes and its Effect on Growth Parameter of Chilli (Capsicum annum L.)

Author: Suma C. Kammar*, Mahadeva Swamy, Nagaraj M. Naik, Ravindra C. Gundappagol, B.K. Desai and Amaresh Y.S.

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Abstract

The antagonistic activity of endophytic bacteria against two phytopathogens viz., Fusarium oxysporum, Colletotrichum sp. were isolated from healthy tissues of chilli and tomato plants in 2018-2019 and the pot experiment was carried out in the glass house of Department of Agricultural Microbiology, University of Agricultural Sciences, Raichur with eighteen treatments and three replications. To explore the antifungal activity was screened using dual culture method in which both endophytic bacteria and test fungi were inoculated in single Potato Dextrose Agar (PDA) media plate. The potential endophytic bacterial isolates were identified through morphological and biochemical characteristics revealed that the Bacillus species were the dominant antagonist. The results of present study indicated that the isolate ESK-26 and ESK-32 recorded highest per cent inhibition of 63.85 % and 61.25 % against Fusarium oxysporum and Colletotrichum spp. respectively. Significantly highest plant height, nu

Keywords

Endophytic bacteria, Bacillus sp. Plant growth promotion, chilli, Fusarium oxysporum and Colletotrichum spp.

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