Abstract: Trichoderma species are widely used as biocontrol agents for phytopathogenic fungi in agricultural fields. The occurrence of diseases such as damping off, Fusarium wilt and leaf spot, blights (Alternaria spp.) are important major diseases of chilli (Capsicum annum L.) . Trichoderma harzianum (MH333257) act as biocontrol agents against plant pathogenic fungi such as Fusarium oxysporum(RORK02), and Alternaria spp. The microbial isolates were identified by microscopic analysis and confirmed through genetic DNA isolation and PCR analysis. Trichoderma harzianum were screened for antifungal activity against Fusarium oxysporum (RORK02), and Alternaria alternata and zone of inhibition was taken as an indicator by dual culture method. In this study chilli plants were harvested after 30 days of microbial inoculation and plant biomass, chlorophyll content and Enzyme activity were calculated. Trichoderma inoculated plants highly inhibited Fusarium.
Keywords: Alternaria alternata, Antagonistic activity, Biocontrol, Fusarium oxysporum, Trichoderma harzianum.
Title: Biocontrol Potential of Trichoderma harzianum against Fusarium oxysporum and Alternaria alternata in Chilli plants
Author: R.PAVITHRA, S.LALITHA
International Journal of Life Sciences Research
ISSN 2348-313X (Print), ISSN 2348-3148 (online)
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