EFFECTS OF PADDY SOIL ANTAGONISTIC MICROORGANISMS OF GUILAN ON THE CAUSAL AGENT OF RICE BAKANAE DISEASE

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PADASHT DEHKAEI M.N.; MANSOURI JAJAEI SH.; ROUHANI H.

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Journal: Journal of Water and Soil Science Year:2004 | Volume:8 | Issue:1 Page(s): 222-222

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Title

EFFECTS OF PADDY SOIL ANTAGONISTIC MICROORGANISMS OF GUILAN ON THE CAUSAL AGENT OF RICE BAKANAE DISEASE

Author(s)

PADASHT DEHKAEI M.N. | MANSOURI JAJAEI SH. | ROUHANI H. | Issue Writer Certificate

Keywords

RICEQ3

DISEASESQ4

BIOLOGICAL CONTROLQ4

BAKANAE DISEASEQ4

ANTAGONISTIC MICROORGANISMSQ4

Abstract

One hundred and two microorganisms were isolated from 85 paddy soil samples of different locations in Guilan Province. Antagonistic effects of the microorganisms were tested against Gibberella Fujikuroi on PDA medium. Twenty one microorganism isolates were selected for seed treatment in blotter test. Seven isolates that were satisfactorily effective in reducing pathogen colonies formed on seeds and seedlings were tested in controlling disease in a greenhouse experiment with split plot design. The antagonists were Bacillus subtilis, B. circulars, Bacillus sp., Trichoderma harzianum, T. virens (2 isolates), and F.23 (unidentified). Results showed that all antagonists effectively reduced the disease in sterilized soil compared with control but overall effectiveness of B. subtilis, T. harzianum, and T. virens was higher than others and lower than the fungicide treatment (thiophant methyl thiram W.P. 80% , 2g/L). It was found that when seeds were treated with antagonists prior to inoculation with the pathogen, the effectiveness of antagonists was significantly better than when they were applied after seed infection with the pathogen.

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APA: Copy

PADASHT DEHKAEI, M.N., MANSOURI JAJAEI, SH., & ROUHANI, H.. (2004). EFFECTS OF PADDY SOIL ANTAGONISTIC MICROORGANISMS OF GUILAN ON THE CAUSAL AGENT OF RICE BAKANAE DISEASE. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 8(1), 222-222. SID. https://sid.ir/paper/357324/en

Vancouver: Copy

PADASHT DEHKAEI M.N., MANSOURI JAJAEI SH., ROUHANI H.. EFFECTS OF PADDY SOIL ANTAGONISTIC MICROORGANISMS OF GUILAN ON THE CAUSAL AGENT OF RICE BAKANAE DISEASE. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2004;8(1):222-222. Available from: https://sid.ir/paper/357324/en

IEEE: Copy

M.N. PADASHT DEHKAEI, SH. MANSOURI JAJAEI, and H. ROUHANI, “EFFECTS OF PADDY SOIL ANTAGONISTIC MICROORGANISMS OF GUILAN ON THE CAUSAL AGENT OF RICE BAKANAE DISEASE,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 8, no. 1, pp. 222–222, 2004, [Online]. Available: https://sid.ir/paper/357324/en

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