Sat, 16 Dec 2017

Effect of Biocontrol agent on Chilli (Capsicum annuum L.) using Seed treatment and Root dipping method

Selvam Gomathi*1, Varatharaju Ambikapathy1,  Annamalai Panneerselvam1

1. PG & Research Department of Botany & Microbiology, A.V.V.M Sri Pushpam College (Autonomous), Poondi – 613 503, Thanjavur


ABSTRACT

It has been confirmed that Trichoderma sp. has antagonistic and biological control activity in which T. viride maximum inhibited the pathogenic fungus by the dual culture technique. Seed treatment and application of the antagonist in root dipping are alternative methods for chemical control which could improve the establishment and colonization ability in the plant rhizosphere. This effectiveness of disease control with the added advantage of using small volumes of biocontrol preparations. In seed treatment and root dipping of chilli seedlings the transplanting to the pot after 30th, 60th, 90th and 120th days, the maximum percentage of seed germination and morphometric analysis such as shoot length, root length and yield of fruits were observed in the treatment of T. viride and T. harzianum when compared to control.

Keywords: Trichoderma sp, Chilli, Seed treatment, Root dipping


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