Investigation on The Biological Control of Fusarium Root Rot in Tomato by Nonpathogen Fusarium Spp.

Authors : Fahri YİĞİT, Kerziban ARIKAN, Yasemin Y BALABAN

Pages : 59-63

View : 23 | Download : 30

Publication Date : 2007-08-25

Article Type : Research Paper

Abstract :To control the Fusarium crown and root rot by nonpathogen Fusarium spp., 40 diversity isolates of nonpathogen Fusari-um spp., from roots of various plants belonging Gramineae and healthy tomato were tested as pot experiment. Pot soil was artificially infested with pathogen fungi grown on perlite-bran medium at 1/19 insert ignore into journalissuearticles values(v/v);. Two days after inoculum, tomato seedlings were planted in infested pot soil by dipping the plant roots at transplant in a conidial suspension insert ignore into journalissuearticles values(108 cfu/ml);. After ten weeks using 0-4 scale, isolates D18, G39, G5, D8, D23 and D25 of tested nonpathogen fungi significantly controlled the disease compared to others. Of tested isolates, D8, G5, G39 and D18 controlled the disease by 34.6%, 46.4%, 64.2% and 69.6%, respectively. The results showed that, antagonists isolated from different host would be used as biocontrol agents in disease control in tomato. Because of there was no effective antagonistic effect in dual culture, it was suggested that, mode of action of nonpathogen Fusarium spp. tested would be attributed to induced systemic resistance and competition.
Keywords : Patojen olmayan Fusarium, domates, kök çürüklüğü, biyolojik kontrol