Determination of Root Rot Causal Agents and Prevalence of Disease on Tomato Plants in Greenhouse with Applied Pentachloronitrobenzene (PCNB)

Authors : Fahri YİĞİT

Pages : 1-4

View : 44 | Download : 25

Publication Date : 2003-06-25

Article Type : Research Paper

Abstract :In this study, ten greenhouses for each of two groups as pentachloronitrobenzene insert ignore into journalissuearticles values(PCNB); treated and non-treated were chosen for sampling and observations to determine the quantative and qualitative effects of PCNB on the root rot pathogens of tomato and the prevalence of the disease under greenhouse conditions. Six diseased plants were randomly collected from the each of greenhouse after determination of the disease incidence rates, and the isolation studies were carried out with the diseased plant samples. According to the results the average amount of Fusarium spp. were 20.9 % more than those which were in the controls. The ratio of Fusarium spp. among the total fungal iso-lates were found 85.05% for PCNB and 75.67% for control. In addition, Fusarium spp. from diseased plants were 85.6% and 66.4% in PCNB treated and nontreated greenhouse respectively. Rhizoctonia solani and Colletotrichum coccodes were found in less amounts 71.43% and 60% respectively in comparison with control. There no statistical significant difference insert ignore into journalissuearticles values(p:0.05 level); between the control and PCNB applied greenhouses.
Keywords : Pentachloronitrobenzen, kök çürüklüğü, domates, sera

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