In vitro interactions among fungi associated with leaf rot disease of coconut
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Authors
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N. SRINIVASAN and M. GUNASEKARAN
Central Plantation Crops Research Institute, Regional Station, Kayangulam 690 533
Keywords:
Coconut leaf rot, fungi, growth, interactions, competitionAbstract
A total of 36 dual combinations of fungi associated with leaf rot of coconut (Colletotrichum gloeosporioides [Glomerella cingulata], Exserohilum rostratum [Setosphaeria rostrata], Gliocladium vermoeseni, Fusarium solani, F. moniliforme var. intermedium, Thielaviopsis paradoxa [Ceratocystis paradoxa], Rhizoctonia solani, Cylindrocladium scoparium and Mortierella elongata) were inoculated on potato dextrose agar. Based on the inhibition zone, the interaction was classified as extremely mild (<2 mm),mild (2-3 mm), moderate (4-6 mm) and strong (>6 mm) and the results were tabulated. The predominant fungi did not show strong inhibition or antagonism towards other fungi and the predominant fungi of leaf rot appeared to be associative rather than antagonistic.
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