Observations on some common species of alternaria with special reference to the influence of substrate on size of conidia
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Date
1967
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Division of Plant Pathology, Agricultural College & Research Institute, Vellayani
Abstract
Cultural, physiological and pathogenicity studies of Alternaria species causing leaf spot disease on seven different host plants have been made. of these Hibiscus Rosa-sinensis is a new record for Alternaria in India. All the isolates grew and sporulated on the different solid media tried. But grouth and sporulation on potato dextrose agar were found to be uniformly good.Minimum radial growth of all the isolates was obtained on their respective host leaf extract agar media. Sporulation was also satisfactory in this media. The isolates from Basella and on onion showed pigment production on Czapek's agar medium
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PG