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J. Owusu-Nipah
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On-farm evaluation of the coconut hybrid, Malayan Yellow Dwarf x Vanuatu Tall for tolerance to the lethal yellowing disease of coconut in Ghana S. K. Dery; J. Owusu-Nipah; E. Andoh-Mensah; B. N. Nuertey; J. Nkansah-Poku; R. Arthur; R. Philippe
International Coconut Community Journal Vol 21 No 1 (2005): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v21i01.399

Abstract

The performance of the coconut hybrid, Malayan Yellow Dwarf x Vanuatu Tall (MYD x VTT) was assessed in Ghana for a period of 6-8 years. The hybrid has previously been identified as being tolerant to the devastating lethal yellowing disease known in Ghana as Cape Saint Paul Wilt Disease (CSPWD). CSPWD is the most important coconut disease in Ghana. It has destroyed approximately 11,000 ha of coconut in Ghana, causing economic hardship to thousands of people. Mortality due to CSPWD during the trial period was only 1.0%. The hybrid showed remarkable tolerance to CSPWD during the 8-year trial period. Mortality, inflorescence emergence and nut load depended largely on the level of farmers’ commitment to basic management practices. In well maintained farms, the hybrid performed two to three times better compared to farms where maintenance was poor.
On-farm evaluation of the coconut hybrid, Malayan Yellow Dwarf x Vanuatu Tall for tolerance to the lethal yellowing disease of coconut in Ghana S. K. Dery; J. Owusu-Nipah; E. Andoh-Mensah; B. N. Nuertey; J. Nkansah-Poku; R. Arthur; R. Philippe
International Coconut Community Journal Vol 21 No 1 (2005): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v21i01.399

Abstract

The performance of the coconut hybrid, Malayan Yellow Dwarf x Vanuatu Tall (MYD x VTT) was assessed in Ghana for a period of 6-8 years. The hybrid has previously been identified as being tolerant to the devastating lethal yellowing disease known in Ghana as Cape Saint Paul Wilt Disease (CSPWD). CSPWD is the most important coconut disease in Ghana. It has destroyed approximately 11,000 ha of coconut in Ghana, causing economic hardship to thousands of people. Mortality due to CSPWD during the trial period was only 1.0%. The hybrid showed remarkable tolerance to CSPWD during the 8-year trial period. Mortality, inflorescence emergence and nut load depended largely on the level of farmers’ commitment to basic management practices. In well maintained farms, the hybrid performed two to three times better compared to farms where maintenance was poor.
Preliminary investigation of poor nut yield performance of Sri Lanka Green Dwarf in the coconut belt of South - Western Ghana E. Andoh-Mensah; R. Philippe; J. Owusu-Nipah
International Coconut Community Journal Vol 23 No 1 (2007): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v23i1.561

Abstract

A lethal yellowing disease known locally as Cape Saint Paul Wilt Disease (CSPWD) has brought the coconut industry in Ghana under a serious threat due to its devastating effect. The Sri Lanka Green Dwarf (SGD) is so far the only coconut ecotype identified to have shown least susceptibility to the disease. However, in the coconut belt of South - Western Ghana, where the SGD is mainly found, this coconut ecotype has a general problem of low nut yield and wide variability in nut load. A phenomenon that does not auger well for any hybridization programme involving the ecotype. Consequently, between August 2003 and March 2004 an investigation was carried out into the problem of low yield and large variability of nut load in the SGD. Soil and leaf samples were taken from SGD plots in South - Western Ghana and analysed. Nut count was carried out to estimate annual nut load per tree. Pest survey and identification were also done. Results indicated nutritional/soil factors especially K deficiency or pest damage particularly due to Pseudoptheraptus devastans (coconut bug) or a combination of the two as being largely responsible for the low yield and wide variability in nut load. Oecophylla longinoda (red ant) was confirmed as the natural enemy of the coconut bug during the study.
Co-Authors B. N. Nuertey E. Andoh-Mensah J. Nkansah-Poku R. Arthur R. Philippe S. K. Dery