Madras Agricultural Journal
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SAPROPHYTIC ACTIVITY OF RHIZOCTONIA BATATICOLA CAUSING ROOT ROT OF SAFFLOWER

Abstract

The saprophytic survival of R.bataticola was studied. Among different levels of hoculum, four per cent was optimum for survival of the pathogen in the soupto eight weeks. Different moisture levels were tested and the moisture at 50 per cent moisture holding capacity (MHC) was found to be most optimum for the development followed by 25 and 75 per cent. The saprophytic survival of the pathogen was much less at 100 per cent MHC. The pathogen could also survive in the air dried soil condition.

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