Madras Agricultural Journal
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Growth Studies on Acrocylindrium oryzae Sawada an Incitant of Sheath rot Disease of Rice

Abstract

The fungus, Acrocylindrium oryzae Sawada, grow and sporulated well in potato dextrose agar and cats agar media. Among the four liquid media tried. maximum growth and sporulation were in Czapel's medium. The optimum temperature for growth and sporulation of the pathogen was 30-1°C and optimum pH was 6.5. Sucrose and starch were found to be the best among the carbon sources tried while ammonium nitrate and ammonium sulphate promoted better growth and sporulation among the nitrogen sources tested.

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