Evaluation of Mycosphaerella impact on eucalypts plantations in Portugal
Mycosphaerella leaf disease (MLD) is one of the most important diseases of eucalypts plantations worldwide. However, only recently it has become relevant in Portugal. Caused by a complex of Mycosphaerella species, this disease reduces the photosynthetic area and can cause tree defoliation. In extrem...
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| Format: | Article |
| Language: | English |
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Sociedade de Ciências Agrárias de Portugal
2008-12-01
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| Series: | Revista de Ciências Agrárias |
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| Online Access: | http://www.scielo.oces.mctes.pt/scielo.php?script=sci_arttext&pid=S0871-018X2008000200013 |
| _version_ | 1819264547609903104 |
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| author | Márcia Silva Carlos Valente Lucinda Neves Helena Machado |
| author_facet | Márcia Silva Carlos Valente Lucinda Neves Helena Machado |
| author_sort | Márcia Silva |
| collection | DOAJ |
| description | Mycosphaerella leaf disease (MLD) is one of the most important diseases of eucalypts plantations worldwide. However, only recently it has become relevant in Portugal. Caused by a complex of Mycosphaerella species, this disease reduces the photosynthetic area and can cause tree defoliation. In extreme cases it causes reduction in the volume of wood produced. In order to relate the observed symptoms of MLD with the presence of the pathogen and at the same time obtaining an evaluation of eucalypt clones and family susceptibility, two experimental plantations were established in places where the disease has been detected. Data on the percentage of affected crown (necrosis or defoliation) were collected and some of the Mycosphaerella species present were identified (M. africana, M. communis, M. grandis, M. lateralis, M. marksii, M. nubilosa, M. parva, M. vespa and M. walkeri).<br>A doença das manchas das folhas do eucalipto é uma das mais importantes nas plantações de eucalipto, tendo-se só recentemente tornado relevante em Portugal. Esta doença, causada por um complexo de espécies de Mycosphaerella, reduz a área fotossintética da árvore, podendo causar desfolha, com consequente redução da taxa de crescimento e do volume de madeira produzido. Com o objectivo de relacionar os sintomas observados com a presença do agente patogénico e avaliar a susceptibilidade de clones e famílias de eucalipto, foram estabelecidas duas plantações experimentais em locais onde foi detectada a doença. Foram recolhidos dados relativos à percentagem de área da copa afectada (por necroses ou desfolha) e identificadas as espécies de Mycosphaerella associadas (M. africana, M. communis, M. grandis, M. lateralis, M. marksii, M. nubilosa, M. parva, M. vespa e M. walkeri). |
| first_indexed | 2024-12-23T20:31:13Z |
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| institution | Directory Open Access Journal |
| issn | 0871-018X |
| language | English |
| last_indexed | 2024-12-23T20:31:13Z |
| publishDate | 2008-12-01 |
| publisher | Sociedade de Ciências Agrárias de Portugal |
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| series | Revista de Ciências Agrárias |
| spelling | doaj.art-4ca7f08972294eb8ad9f1f874c58c15d2022-12-21T17:32:14ZengSociedade de Ciências Agrárias de PortugalRevista de Ciências Agrárias0871-018X2008-12-01312112118Evaluation of Mycosphaerella impact on eucalypts plantations in PortugalMárcia SilvaCarlos ValenteLucinda NevesHelena MachadoMycosphaerella leaf disease (MLD) is one of the most important diseases of eucalypts plantations worldwide. However, only recently it has become relevant in Portugal. Caused by a complex of Mycosphaerella species, this disease reduces the photosynthetic area and can cause tree defoliation. In extreme cases it causes reduction in the volume of wood produced. In order to relate the observed symptoms of MLD with the presence of the pathogen and at the same time obtaining an evaluation of eucalypt clones and family susceptibility, two experimental plantations were established in places where the disease has been detected. Data on the percentage of affected crown (necrosis or defoliation) were collected and some of the Mycosphaerella species present were identified (M. africana, M. communis, M. grandis, M. lateralis, M. marksii, M. nubilosa, M. parva, M. vespa and M. walkeri).<br>A doença das manchas das folhas do eucalipto é uma das mais importantes nas plantações de eucalipto, tendo-se só recentemente tornado relevante em Portugal. Esta doença, causada por um complexo de espécies de Mycosphaerella, reduz a área fotossintética da árvore, podendo causar desfolha, com consequente redução da taxa de crescimento e do volume de madeira produzido. Com o objectivo de relacionar os sintomas observados com a presença do agente patogénico e avaliar a susceptibilidade de clones e famílias de eucalipto, foram estabelecidas duas plantações experimentais em locais onde foi detectada a doença. Foram recolhidos dados relativos à percentagem de área da copa afectada (por necroses ou desfolha) e identificadas as espécies de Mycosphaerella associadas (M. africana, M. communis, M. grandis, M. lateralis, M. marksii, M. nubilosa, M. parva, M. vespa e M. walkeri).http://www.scielo.oces.mctes.pt/scielo.php?script=sci_arttext&pid=S0871-018X2008000200013Eucalyptus globulusdoença foliarMLDplantação experimentalEucalyptus globulusMycosphaerella leaf diseaseMLDplantation trial |
| spellingShingle | Márcia Silva Carlos Valente Lucinda Neves Helena Machado Evaluation of Mycosphaerella impact on eucalypts plantations in Portugal Revista de Ciências Agrárias Eucalyptus globulus doença foliar MLD plantação experimental Eucalyptus globulus Mycosphaerella leaf disease MLD plantation trial |
| title | Evaluation of Mycosphaerella impact on eucalypts plantations in Portugal |
| title_full | Evaluation of Mycosphaerella impact on eucalypts plantations in Portugal |
| title_fullStr | Evaluation of Mycosphaerella impact on eucalypts plantations in Portugal |
| title_full_unstemmed | Evaluation of Mycosphaerella impact on eucalypts plantations in Portugal |
| title_short | Evaluation of Mycosphaerella impact on eucalypts plantations in Portugal |
| title_sort | evaluation of mycosphaerella impact on eucalypts plantations in portugal |
| topic | Eucalyptus globulus doença foliar MLD plantação experimental Eucalyptus globulus Mycosphaerella leaf disease MLD plantation trial |
| url | http://www.scielo.oces.mctes.pt/scielo.php?script=sci_arttext&pid=S0871-018X2008000200013 |
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