Genetic diversity among coconut varieties for susceptibility to Cape St Paul Wilt Disease

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dc.contributor.authorBaudouin, L.
dc.contributor.authorDery, S.K.
dc.contributor.authorPhilippe, R.
dc.contributor.authorOwusu Nipah, J.
dc.contributor.authorNkansah-Poku, J.
dc.contributor.authorQuaicoe, R.N.
dc.contributor.authorArthur, R.
dc.contributor.authorDare, D.
dc.contributor.authorYankey, N.
dc.contributor.authorDollet, M.
dc.date.accessioned2014-05-02T11:08:06Z
dc.date.available2014-05-02T11:08:06Z
dc.date.issued2008
dc.description.abstractThe CSPWDis the Ghanaian formof lethal yellowing disease (LYD) of coconut, caused by a phytoplasma and has been active in Ghana since 1932. The paper updates the results of screening trials conducted with 38 pure and hybrid coconut varieties since 1981. Although no variety was found totally resistant, a wide range of susceptibility level was observed: almost all SGD were still unaffected, while the local WAT had almost totally disappeared, additive values were calculated for the parental varieties and it was shown that, in the average, hybrids are slightlymore susceptible than predicted by a purely additive model. According to this genetic model, the SGD 9 VTT hybrid will be appreciably less susceptible than the MYD 9 VTT currently being used for replanting devastated farms in Ghana. Our results tend to confirm the general trend that cultivars from the Pacific group (especially the Dwarfs) are less susceptible than the Indo-Atlantic cultivars. Proposals are made to adapt planting material to the risk level. Genetic control can only be efficient if it is considered as a link in a chain of control measures involving the choice of a proper planting site, goodmanagement and early eradication of diseased trees.en_US
dc.identifier.citationEuphytica (2008) 164:1–11en_US
dc.identifier.urihttp://hdl.handle.net/123456789/846
dc.language.isoenen_US
dc.subjectCoconuten_US
dc.subjectGhanaen_US
dc.subjectLethal yellowingen_US
dc.subjectScreeningen_US
dc.subjectVarietiesen_US
dc.titleGenetic diversity among coconut varieties for susceptibility to Cape St Paul Wilt Diseaseen_US
dc.typeArticleen_US

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