Isolation and screening of some rhizosphere fungi for their antagonistic potential against Fusarium oxysporum f. sp. lycopersici in tomato cv Pusa Ruby
Rekha Arya*
Department of Botany Sri Tika Ram Kanya Mahavidyalaya, Aligarh-202001 (India) E mail -drrekhaarya@gmail.com
ABSTRACT
Studies were made to isolate and screen the associated rhizosphere mycoflora of Ziziphus jujuba Mill.for their antagonistic effect. Fungi were isolated from rhizosphere and rhizoplane of Ziziphus in the month of March. Three fungal genera Penicillium cyclopium, Trichoderma harzianum and Trichoderma pseudokoeningii, known to have antagonistic potential, were screened against Fusarium oxysporum f. sp. lycopersici to evaluate their biocontrol potential on tomato cv Pusa Ruby. Germination percentage of plant was studied after 5, 10, 15 and 20 days of sowing. All three fungi were found to mitigate the adverse effect of the pathogen. Moreover, fungi have improved germination percentage over uninoculated check.