Characterization Of Fusarium Mangiferae And F. Proliferatum, And Management Of Mango Malformation Disease
| dc.contributor.author | Rodzali, Haslinda | |
| dc.date.accessioned | 2022-03-14T01:12:40Z | |
| dc.date.available | 2022-03-14T01:12:40Z | |
| dc.date.issued | 2021-03 | |
| dc.description.abstract | Mango is one of the most favourable fruits by Malaysians. Malaysia produced at an estimated of a hundred and two kilo tonnes of mango yearly. However, the local market demand towards mango is very high. Thus, Malaysia still imports the fruits from other countries such as Thailand and Australia. The occurrence of mango malformation disease (MMD) has been a stumbling block to mango production. Mango malformation disease has been a well-known disease since 1891 in India and gradually spread to other mango growing countries including Malaysia. Since then, several species of Fusarium have been reported to cause this disease in other countries including Egypt and China. However, none was confirmed in Malaysia. The disease has caused malformation of the inflorescence and vegetative parts of the tree making it as one of the most destructive diseases to mango tree. The disease affected the fruit production, from less to no yield if the plant was severely infected as the malformed inflorescence did not produce fruits. This research focused to determine the causal agent of MMD and evaluated the effectiveness of fungicides and biological agent in controlling the disease. In Malaysia, several species of Fusarium have been isolated from infected samples (panicles, leaflets and flowers) such as F. mangiferae, F. proliferatum, and F. subglutinans, but their pathogenicity tests were not completed. Sample collections were conducted in mango orchards around peninsular Malaysia (Perlis, Kedah, Pulau Pinang, Perak, Melaka, Negeri Sembilan, Pahang and Johor). Isolates of Fusarium species recovered from the symptomatic samples (panicles, flowers and leaflets) were identified using morphological and molecular approaches. As a result, 103 isolates of Fusarium were identified as Fusarium concentricum, F. incarnatum, F. mangiferae, F. oxysporum, F. proliferatum, F. pseudocircinatum, and F. verticillioides. Based on the pathogenicity test, only F. proliferatum and F. mangiferae produced the malformation symptoms. Though samples were collected in all states in peninsular Malaysia, only orchards in northern region showed symptoms of MMD. To control the disease, fungicide testing and biological control agent were done using in vitro All fungicides and biological control agent tested were proven to have impact on MMD pathogens. The outcome of this study was expected to help researchers, growers and institutions involved in mango industries to understand the disease and increase the yield of mangoes. | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/14871 | |
| dc.language.iso | en | en_US |
| dc.publisher | Universiti Sains Malaysia | en_US |
| dc.subject | Natural history | en_US |
| dc.title | Characterization Of Fusarium Mangiferae And F. Proliferatum, And Management Of Mango Malformation Disease | en_US |
| dc.type | Thesis | en_US |
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