Infection of Colletotrichum gloeosporioides on mango fruit and its resistance
2002
Dinh, Song-Quang(Kasetsart Univ., Bangkok (Thailand). Faculty of Agriculture. Dept. of Plant Pathology) | Somsiri Sangchote(Kasetsart Univ., Bangkok (Thailand). Faculty of Agriculture. Dept. of Plant Pathology)
Infection of Colletotrichum gloeosporioides on mango fruit cv. Nam Dok Mai ws studied. Under an optimum condition (95-100 percent RH, 25 deg C), germination and appressorium formation started at 12 hrs and 12 hrs after deposition of conidia on the peel, respectively. After 48 hrs, 60 percent fungal propagules present was appressoria. The fungus infected unripe mango fruit in latent fashion. Appressorium produced an infection peg to penetrate fruit peel accompanying the maceration of cuticle. The symptoms expressed at fruit ripening and the fungus reproduced conidia by sporulating of acervulus. At postharvest stages, mango cv. Nam Dok Mai and Nang Klang Wan were found to be susceptible to anthracnose whereas Rad was resistant.
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