ARCHIVES
VOL. 6, ISSUE 6 (2021)
Antagonistic potential of bio-control agent Trichoderma spp. against stem rot of groundnut incited by Sclerotium rolfsii Sacc
Authors
A Praveen, C Kannan, V Jaiganesh, R Anandan
Abstract
Groundnut is infected by several fungal, bacterial and viral diseases but Stem rot disease considered as one of the most devastating diseases in the groundnut growing areas. Stem rot of groundnut caused by Sclerotium rolfsii which causes yield losses upto 25% and the losses may be accounted for 40-50% in terms of mortality of crop, particularly in kharif season when the climatic conditions are more favourable for pathogens. Management of soil borne pathogens were found difficult, uneconomical and harmful for the environment. Biological control is a great renaissance of interest and research in microbiological balance to control soil-borne plant pathogens and leads to the development of a better farming system. In biological control, genus Trichoderma serves as one of the finest bioagents, which is found to be effective against a wide range of soil borne pathogens. Trichoderma is a soil inhabiting filamentous fungus, which belongs to the division Ascomycota. The biocontrol potential of Trichoderma spp. is due to their complex interaction with plant pathogens either by parasitizing them, secreting antibiotics or by competing for space and nutrients. In the present study, to evaluate the in vitro efficiency of fungal antagonist Trichoderma spp. against mycelial growth of S. rolfsii. Tr-3 isolate reported maximum percent inhibition of 73.81%, whereas least inhibition was noticed in the isolate Tr-10 with 41.05% inhibition when compared over control.
Download
Pages:1556-1559
How to cite this article:
A Praveen, C Kannan, V Jaiganesh, R Anandan "Antagonistic potential of bio-control agent <em>Trichoderma</em> spp. against stem rot of groundnut incited by <em>Sclerotium</em> <em>rolfsii</em> Sacc ". International Journal of Botany Studies, Vol 6, Issue 6, 2021, Pages 1556-1559
Download Author Certificate
Please enter the email address corresponding to this article submission to download your certificate.