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Morphology, pathology, and pathogenicity of Cercospora oryzae, the causal fungus of narrow brown spot of Rice plant



Morphology, pathology, and pathogenicity of Cercospora oryzae, the causal fungus of narrow brown spot of Rice plant



Bull, nat. Inst. Agric. Sci. Tokyo, Ser. C, 1956. 6: 167-178



oryzae was found to grow best on potato and soy-bean agars, while conidial production was most abundant on rice straw decoction agar. Growth occurred at 6-33 degrees C. and pH 2.8-9.3, with optima at 25-28 degrees and 5.7-7.1. Treatment with water heated to 45 degrees destroyed the conidia within 45 min. and to 48 degrees within 10; under dry conditions they succumb at 80 degrees within 1 hr., at 85 degrees within 30 min., and at 90 degrees within 10.

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