Abstract
Coconut foliar decay (CFD) is a disease of coconut (Cocos nucifera L.) associated with infection by coconut foliar decay virus (CFDV), which is endemic in Vanuatu, South Pacific. The local cultivar ‘Vanuatu Tall’ (VTT) is the only cultivar that is fully tolerant to CFD, whereas introduced cultivars and hybrids are affected to different degrees. From 1967 to 2008 a conventional breeding programme was conducted with the aim of creating hybrid planting material combining tolerance to CFD with improved copra yield and high copra weight per nut. This objective was achieved by crossing the progeny of selfed trees of ‘Rennell Island Tall’ (RIT) cultivar, selected for their low susceptibility to CFD in field screening tests, with VTT, improved by mass selection and intercrossing. An improved VTT × RIT hybrid was identified with a high degree of tolerance to CFD (less than 1% of diseased trees after 11 years of exposure to high disease pressure). The annual production of the improved VTT × RIT hybrid ranged from 21.9 to 28.6 kg of copra per tree, depending on the RIT parent, and was, on average, 34% higher than that of ‘VTT Elite’ an advanced cultivar obtained after four selection cycles of local VTT. However, the production of the hybrid in Vanuatu involves constraints such as frequent replanting and isolation of the seed garden and CFD control for the RIT parents. The importance of conducting research on the genetic determinism and the mechanism of tolerance to CFD for better control of the disease in the event that it spreads outside Vanuatu is discussed.
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Notes
Also called ‘New Hebrides Tall’ (NHT) before the country became independent (1980); in French, ‘Grand Nouvelles-Hébrides’ (GNH) then ‘Grand du Vanuatu’ (GVT); in Portuguese, ‘Gigante de Vanuatu’ then ‘Gigante de Novas Hebridas’. VTT is the international abbreviation for Vanuatu Tall.
Mean ± standard deviation.
Abbreviations
- CFD:
-
Coconut foliar decay
- CFDV:
-
Coconut foliar decay virus
- CLY:
-
Coconut lethal yellowing
- MRD:
-
Malayan Red Dwarf
- MVT:
-
Markham Valley Tall
- RIT:
-
Rennell Island Tall
- SIT:
-
Solomon Islands Tall
- VRD:
-
Vanuatu Red Dwarf
- VTT:
-
Vanuatu Tall
References
Batugal PA, Bourdeix R, Baudouin L (2009) Coconut breeding. In: Mohan Jain S, Priyadarsham PM (eds) Breeding plantation tree crops: tropical species. Springer, New York, pp 327–375
Been BO (1981) Observations on field resistance to lethal yellowing in coconut varieties and hybrids in Jamaica. Oléagineux 36:9–11
Bourdeix R (1989) La sélection du cocotier Cocos nucifera L. Etude théorique et pratique, optimisation des stratégies d’amélioration génétique. PhD dissertation, Université de Paris Sud Orsay, Paris
Bourdeix R (1991) Une stratégie de sélection du cocotier Cocos nucifera L. II - Amélioration des hybrides Grand × Grand/Coconut Cocos nucifera L. selection strategy. II - Improvement of Tall × Tall hybrids. Oléagineux 46:267–286
Bourdeix R (1993) Rapport scientifique cocotier 1991–1992. Station cocotier Marc Delorme. IDEFOR, Abidjan, Côte d’Ivoire
Calvez C-H, Renard J-L, Marty G (1980) La tolérance du cocotier hybride Local × Rennell à la maladie des Nouvelles Hébrides/Tolerance of the hybrid coconut Local × Rennell to New Hebrides disease. Oléagineux 35:443–451
De Nucé M, Wuidart W (1981) Les cocotiers Grands à Port-Bouët (Côte d’Ivoire). 2- Grand Rennell, Grand Salomon, Grand Thaïlande, Grand Nouvelles-Hébrides/The Tall coconuts at Port-Bouët (Ivory Coast). 2- Rennell Tall, Solomon Tall, Thailand Tall, New Hebrides Tall. Oléagineux 36:353–365
Dery SK, Philippe R, Baudouin L, Quaicoe RN, Nkansah-Poku J, Owusu-Nipah J, Arthur R, Dare D, Yankey N, Dollet M (2008) Genetic diversity among coconut varieties for susceptibility to Cape St. Paul Wilt disease. Euphytica 164:1–11
Dollet M, Quaicoe R, Pilet F (2009) Review of coconut ‘lethal yellowing’ type diseases. Diversity, variability, and diagnosis. OCL Oléagineux, Corps Gras, Lipides 16:97–101
Foale MA (1964) Report on a visit to Rennell Island B.S.I.P. to study the coconut population. Typed document. Unpublished
Foale MA (1987) Coconut germplasm in the South Pacific Islands. Australian Centre for International Agricultural Research, Canberra, Australia
Frison EA, Putter C, Diekmann M (1993) FAO/IBPGR technical guidelines for the safe movement of coconut germplasm. FAO/International Board for Plant Genetic Resources, Rome
Hanold D, Landgridge P, Randles J (1988) The use of cloned sequences for the identification of coconut foliar decay disease-associated DNA. J Gen Virol 69:1323–1329
Hanold D, Morin J-P, Labouisse J-P, Randles JW (2003) Foliar decay disease in Vanuatu. In: Loebenstein G, Thottappilly G (eds) Plant virus diseases on crops in developing countries. Kluwer Academic Publishers, The Netherlands, pp 583–596
Julia J-F (1982) Myndus taffini (Homoptera Ciixidae), vecteur du dépérissement foliaire des cocotiers au Vanuatu/Myndus taffini (Homoptera Ciixidae), vector of foliar decay of coconuts in Vanuatu. Oléagineux 37:409–414
Julia J-F, Dollet M, Randles J, Calvez C-H (1985) Le dépérissement foliaire du cocotier par Myndus taffini (DFMT) : Nouveaux résultats/Foliar decay of coconut by Myndus taffini (FDMT): new results. Oléagineux 40:19–27
Labouisse J-P, Sileye T, Morin J-P, Hamelin C, Baudouin L, Bourdeix R, Rouziere A (2004) Coconut (Cocos nucifera L.) genetic improvement in Vanuatu: overview of research achievements from 1962 to 2002. Part 1: improvement of the Vanuatu Tall by mass selection. OCL Oléagineux, Corps gras, Lipides 11:354–361
Labouisse J-P, Sileye T, Morin J-P, Hamelin C, Baudouin L, Bourdeix R, Rouziere A (2005) Coconut (Cocos nucifera L.) genetic improvement in Vanuatu: overview of research achievements from 1962 to 2002. Part 2: improvement of the Vanuatu Tall by hybridization. OCL Oléagineux, Corps gras, Lipides 12:170–179
Miller RG (1981) Simultaneous statistical inference. Springer, New York
Office Vanuatu National Statistics (2008) Census of agriculture 2007. Vanuatu National Statistics Office, Port-Vila, Vanuatu
Perera L, Perera SACN, Bandaranayake CK, Harries HC (2009) Coconut. In: Vollman J, Rajcan I (eds) Handbook of plant breeding vol. 4 oil crops. Springer, New York, pp 369–396
R Development Core Team (2009) R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria
Randles J, Julia J-F, Calvez C, Dollet M (1986) Association of single-stranded DNA with foliar decay disease of coconut palm in Vanuatu. Phytopathology 76:889–894
Randles JW, Miller DC, Morin J-P, Rohde W, Hanold D (1992) Localisation of coconut foliar decay virus in coconut palm. Ann Appl Biol 121:601–617
Randles JW, Wefels E, Hanold D, Miller DC, Morin J-P, Rohde W (1999) Detection and diagnosis of coconut foliar decay disease. In: Oropeza C, Verdeil JL, Ashburner GR, Cardena R, Santamaria JM (eds) Current advances in coconut biotechnology. Kluwer Academic, Dordrecht, pp 247–258
Santos GA, Batugal PA, Othman A, Baudouin L, Labouisse J-P (1996) Manual on standardized research techniques in coconut breeding. IPGRI, Rome, Italy
Vanuatu National Statistics Office (2009) Exports by major local commodities value 1999–2008. Vanuatu National Statistics Office
Weightman B (1989) Agriculture in Vanuatu. A historical review. The British Friends of Vanuatu, Cheam, UK
Whitehead RA (1966) Sample survey and collection of coconut germplasm in the Pacific Islands. 30 May-5 September 1964. Her Majesty’s Stationery Office, London
Wilson MR (1988) The genus Myndus in the Solomon Islands and Vanuatu and its relation to foliar decay on coconut palm in Vanuatu. Bull Ent res 78:519–526
Acknowledgements
We thank the Vanuatu Agricultural Research and Technical Centre, and the Vanuatu Government for their continuous support to coconut research as well as the VARTC coconut division staff, especially MM. Jean-Pierre Tabiusu, Godefroy Buletare, Emerick Tevanu, Pedro Relmal, and Valentino Telukluk, for the tremendous work done during the last four decades. We are also indebted to Dr. Jean-François Julia and Dr. Jean-Paul Morin, both retired CIRAD scientists, who participated in this research programme by setting up the first experiments at the Saraoutou station. The Waite Agricultural Research Institute of the University of Adelaide, the Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD) and the Australian Centre for International Agricultural Research (ACIAR) were the other main funders of the activities reported in this article.
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Labouisse, JP., Sileye, T., Bonnot, F. et al. Achievements in breeding coconut hybrids for tolerance to coconut foliar decay disease in Vanuatu, South Pacific. Euphytica 177, 1–13 (2011). https://doi.org/10.1007/s10681-010-0220-1
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DOI: https://doi.org/10.1007/s10681-010-0220-1