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INTEGRATED DISEASE CONTROL OF FUSARIUM WILT ON TOMATO BY COMBINATION BETWEEN Pseudomonas fluorecens AND Trichoderma harzianum UNDER FIELD CONDITION | ||
| IRAQ JOURNAL OF AGRICULTURE | ||
| Article 1, Volume 14, Issue 3, 2009, Pages 0-0 | ||
| Authors | ||
| I. A. Jediaa; S. A. Musa; A. A. Ali; B. A. Abbas | ||
| Abstract | ||
| This study was carried out to evaluate the efficacy of biological control agents (Pseudomonas fluorescens , Trichoderma harzianum) and Benomyl fungicide and there combination as component of integrated disease control of Fusarium wilt on tomato caused by Fusarium oxysporum f.sp. lycopersici. Results showed that the combination treatments with or without fungicide reduced the disease incidence to 22.02 and 25.75% respectively compared to control (64.32%) after 10 weeks from plantation, as well as, these treatments improved growth parameters, it caused significantly increasing in plant yield which reached to 72 and 69% respectively in comparison with the control. The results of Fusarium population density count showed a highly reduction on root tips in all treatments compared to the control and low populations noticed on main roots in combination treatments with or without fungicide compared to the control which was 1.5 , 1.6 and 4.8 Cfu/g fresh roots, respectively, Also a highly significant reduction in Fusarium inoculum potential obtained in the soil for the same treatments and these were 2.3 , 2.5 and 3.9 Cfu/g soil, respectively. | ||
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