STUDY ON THE BIOLOGICAL CONTROL OF RICE BLAST DISEASE IN THE FIELD CONDITION

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PADASHT DEHKAEI F.; IZADYAR MINA

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Journal: Journal of Agricultural Sciences and Natural Resources Year:2007 | Volume:13 | Issue:6 Page(s): 84-92

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Title

STUDY ON THE BIOLOGICAL CONTROL OF RICE BLAST DISEASE IN THE FIELD CONDITION

Author(s)

PADASHT DEHKAEI F. | IZADYAR MINA | Issue Writer Certificate

Keywords

RICEQ3

DISEASEQ3

BIOLOGICAL CONTROLQ4

PYRICULARIAQ3

PSEUDOMONASQ3

BACILLUS SPPQ3

Abstract

The effects of 12 antagonistic bacteria which included Bacillus circulans (6 isolates), B. subtilis (1 isolate), B. megaterium (2 isolates), Bacillus sp. (1 isolate) and PSEUDOMONAS fluorescens (2 isolates) were tested in controlling RICE blast DISEASE (Pyricularia grisea Sacc.) on a susceptible cultivar (Binam). It was carried out in a randomized complete block design with 4 replications in the field for two years. Plants were sprayed with 48-h old culture of each of the bacteria in carboxymethyl cellulose solution (1g/l) at the first occurrence of RICE blast in the field, 15 days after that and heading stage. Under natural infection the precntage DISEASEd leaf area (DLA%) on each of the leaves of 25 tillers and panicle blast (%) were scored at 15 days after each bacterial application and maturity stage, respectively. It found that at the each time of evaluation, some isolates significantly decreased blast DISEASE in comparison with control, but their effects were lower than fungicide treatments. More durable control of leaf and panicle blast was achieved with B. circulans B. 17B than other bacterial strains in two years. It was isolated from RICE blast fungus in the medium.

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APA: Copy

PADASHT DEHKAEI, F., & IZADYAR, MINA. (2007). STUDY ON THE BIOLOGICAL CONTROL OF RICE BLAST DISEASE IN THE FIELD CONDITION. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 13(6), 84-92. SID. https://sid.ir/paper/9174/en

Vancouver: Copy

PADASHT DEHKAEI F., IZADYAR MINA. STUDY ON THE BIOLOGICAL CONTROL OF RICE BLAST DISEASE IN THE FIELD CONDITION. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2007;13(6):84-92. Available from: https://sid.ir/paper/9174/en

IEEE: Copy

F. PADASHT DEHKAEI, and MINA IZADYAR, “STUDY ON THE BIOLOGICAL CONTROL OF RICE BLAST DISEASE IN THE FIELD CONDITION,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 13, no. 6, pp. 84–92, 2007, [Online]. Available: https://sid.ir/paper/9174/en

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