Favorable cultural conditions for mycelial growth of Alternaria brassicace, causing leaf blight of cabbage under In-vitro conditions

Abstract

Cabbage is one of the most important cole crops. Now it is grown almost throughout the year for economic and nutritional value. India occupies 2nd position in cabbage production worldwide .As it suffers from a wide array of fungal, bacterial and viral disease which is causing severe loss in the yield . Alternaria brassicace, the causal agent of leaf blight of cabbage is a fungal pathogen has been reported from all the continents of the world as well as in the state of Uttarakhand, Himachal Pradesh and Telaganna. The study on the growth of the fungus in different media revealed that Potato Dextrose Agar Medium supported significantly the maximum radial growth (68.4mm) of the test fungus followed by Oat Meal Agar Medium and the less growth was observed in the Czpez Dox Agar and Corn Meal Agar Medium. The Potato Dextrose Agar Medium was found to be a best medium for the growth of Alternaria brassicace.