Comparative Morphology and Characterization of Colletotrichum Isolates Occurring on Cocoa in Malaysia

Yee, M. F. and Meon, Sariah (1993) Comparative Morphology and Characterization of Colletotrichum Isolates Occurring on Cocoa in Malaysia. Pertanika Journal of Tropical Agricultural Science, 16 (1). pp. 45-51. ISSN 0126-6128

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Abstract

Isolation from cocoa leaves showing symptoms of shot-hole, blight or irregular leaf spot and from cherelles and pod rot yielded Colletotrichum gloeosporioides. No distinct differences in cultural and morphological characteristics were noted between the various isolates. The fungus was found to grow and sporulate well at 3()C. Cocoa LeafExtract Agar (CllA) was the best medium for mycelial growth while Potato Dextrose Agar appeared to favour sporulation. Both cocoa leaves and injured pods were liable to infection by C. gloeosporioides. Three week old cocoa seedlings and cherelles were noted as the most susceptible stages.

Item Type:Article
Keyword:Colletotrichum gloeosporioides, cocoa, temperature, culture media, infectivity
Publisher:Universiti Putra Malaysia Press
ID Code:3097
Deposited By: Nasirah Abu Samah
Deposited On:24 Nov 2009 01:18
Last Modified:27 May 2013 07:05

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