Yüksek Tünel Koşullarında Patlıcanda Fusarium Solgunluk Hastalığına Karşı Sistemik Dayanıklılığın Teşviki

Authors : H Handan ALTINOK

Pages : 21-30

View : 20 | Download : 9

Publication Date : 2007-06-01

Article Type : Research Paper

Abstract :In this study, a plant activator insert ignore into journalissuearticles values(Actigard 50 WG; Acibenzolar-S-methyl; ASM); and an isolate of Fusarium oxysporum formae speciales nonpathogenic on eggplant insert ignore into journalissuearticles values(F. oxysporum f. sp. melonis; FOM); which were found successful against Fusarium wilt disease insert ignore into journalissuearticles values(Fusarium oxysporum f. sp. melongenae; Fomg); in previous pot experiments, were examined in polytunnel conditions. Pathogen insert ignore into journalissuearticles values(Fomg10); was applied 72 h after ASM and FOM treatments to allow resistance development. Average lengths of ASM and FOM-treated plants were 88.8 and 78.7 cm, respectively, while control plant lengths were 53.56 cm, at 67th day after inoculation insert ignore into journalissuearticles values(DAI);. Fomg10 was isolated from 25th cm of ASM and FOM induced plants and from 50th cm of control plants to evaluate disease progress. The disease improved rapidly in control plants by the end of experiment insert ignore into journalissuearticles values(67 DAI);, and disease severity was 81%. Although neither of inducers succeeded to inhibit initial penetration of the pathogen, however, induced a certain amount of resistance by reducing the disease severity in eggplants by 37.65% insert ignore into journalissuearticles values(ASM); and 50.61% insert ignore into journalissuearticles values(FOM); at 67th DAI, compared to control
Keywords : Fusarium oxysporum, Solanum melongena, acibenzolar S methyl, induced resistance, polytunnel