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Advances in Life Sciences
Year : 2016, Volume : 5, Issue : 3
First page : ( 793) Last page : ( 796)
Print ISSN : 2278-3849. Online ISSN : 2278-4705.

Effectiveness of Different Cultural Media on the Growth and Sporulation of Colletotrichum gloeosporioides causing Anthracnose Disease of Mango (Mangifera indica L.)

Shivakumar K. V.1,*, Palaiah P.2, Raja1, Mallesh S. B.3

1Department of Plant Pathology, UAS, Raichur-584 104

2ARS, UAS, Kawadimatti, Raichur-584 104

3MARS, UAS, Raichur-584 104

*email: shivny2044@gmail.com

Online published on 9 December, 2016.

Abstract

Colletotrichum gloeosporioides causing anthracnose which is a serious post harvest disease in mango accounting for 15–20% loss. The variation in growth and sporulation characteristics of C. gloeosporioides on eight different solid media was investigated. The results of the cultural studies on solid media indicated that the radial growth of C. gloeosporioides was maximum on Potato dextrose agar (88.33 mm) which was significantly superior over all other tested medium followed by Richards's agar (79.50 mm), Asthana and Hawker's ‘A’ agar (77.42 mm), Sabouraud's agar (74.00 mm), Oat meal agar (71.17 mm), Czapek's agar (68.5 mm) and Malt extract agar (61.00 mm). The least radial growth was recorded on Host leaf extract agar (59.08 mm). Mycelium was whitish in most of the media, except in case of Potato dextrose agar, Asthana and Hawker's ‘A’ agar and Malt extract agar produced grayish to white mycelium and dirty brown in case of Host leaf extract agar. Sporulation was good in all the media tested, however maximum sporulation was observed in Richard'sagar (7.25 x 104 conidia ml−1) followed by Potato dextrose agar (6.72 x 104 conidia ml−1). Asthana and Hawker's ‘A’ agar (3.90 x 104) and in Host leaf extract agar average sporulation (2.62 x 104) was observed.

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Keywords

Colletotrichum gloeosporioides, Mangifera indica L, radial growth, sporulation.

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