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Evaluation of some Biological and Environmental Factors Efficiency for Control of Green Mould Rot Caused by Trichoderma sp. on The an Edible Mushroom Agaricus bisporus and Study of some Virulence Factors of Causal Agent | ||
| Journal of Tikrit University For Agriculture Sciences | ||
| Article 1, Volume 17, Issue 0, 2017, Pages 147-156 | ||
| Authors | ||
| Abdullah Abdulkareem Hassan; Muqdad saleh jasim | ||
| Abstract | ||
| The experiment was achieved in College of Agriculture –University of Tikrit to test the efficiency of some biological and environmental factors on control of green mould rot caused by Trichoderma sp. on the an edible mushroom Agaricus bisporus ,the result showed that the biological control by Pseudomonas fluorescence was the best treatment in reducing the pathogen effect on mushroom production, resulting in 1.79 % ( infection%) with biological efficiency ( B.E) 80.16%. pH at 8.5 and 80% compost moisture were the best condition for reduction of pathogen effect resulting in (3.52 and 25.7%) with B.E 64.61 and 13077% respectively . compared to 67.73% and B.E 8.75% in control, Among three A.bisporus strains , the brown strain was the more resistance for green mould disease in which there was no any infection percentage with B.E 86.39% compared to 67.73% ( infection % ) and 8,75 B.E in B62 strains. The chitinase and β-glucanase activity in A.bisporus were ( 0.0023 and 0.03 unit/ml) while these activities were 0.0129 and 0.04 unit /ml in Trichoderma sp. (T6), respectively, these enzymes activities increased to 0.12 and 0.4 unit/ml in present of both fungi, A.bisporus and Trichoderma sp. (T6), respectively. The increase in enzymes activity may be due to antagonistic activity of Trichoderma sp. (T6) and overlaing growth on A.bisporus, thus chitinase and β-glucanase regard as virulence factors of causal agent. | ||
| Keywords | ||
| Biological Control; green mould rot Trichoderma sp; Edible mushroom Agaricus bisporus Pseudomonas putida; fluorescence; Bacillus subtills; cerinus B; thourogensis; Trichoderma sp; Agaricus bisporus; Pseudomonas putida | ||
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