On-farm assessment of clonal introduction of root crops diversity in Vanuatu, Melanesia
Ex-situ collections of vegetatively propagated root crops are difficult to maintain in developing countries. On-farmconservation could be a solution but is more complex for vegetatively propagated than for sexually propagated species. In Vanuatu, a Melanesian archipelago where yam, taro, sweet potato and cassava are staples, a study was undertaken to develop an on-farm conservation system based on the geographic distribution of allelic diversity. Two years after the introduction of new varieties, a survey was conducted with 449 farmers located on 10 different islands. In order to evaluate on-farm conservation efficiency, qualitative and quantitative investigations were conducted and data were analysed. The conclusion was that farmers do enrich their varietal portfolioswith introduced exotic genotypes thus broadening the narrow genetic bases of some species. Nevertheless, no local varieties were lost. Significant geographic distribution of clones of new varieties throughout the archipelago also took place via spontaneous, informal distribution to farmers' relatives. These encouraging results point to the potential impact of the geographic distribution of allelic diversity on smallholders' varietal portfolios. On-farm conservation appears to be an appropriate strategy for the conservation of root crop germplasm diversity inVanuatu. Potential applications for transfer of the methodology to other locations are discussed.
id |
dig-cirad-fr-557781 |
---|---|
record_format |
koha |
spelling |
dig-cirad-fr-5577812024-01-28T18:48:39Z http://agritrop.cirad.fr/557781/ http://agritrop.cirad.fr/557781/ On-farm assessment of clonal introduction of root crops diversity in Vanuatu, Melanesia. Camus P., Lebot Vincent. 2010. Experimental Agriculture, 46 (4) : 541-559.https://doi.org/10.1017/S0014479710000591 <https://doi.org/10.1017/S0014479710000591> On-farm assessment of clonal introduction of root crops diversity in Vanuatu, Melanesia Camus, P. Lebot, Vincent eng 2010 Experimental Agriculture F30 - Génétique et amélioration des plantes F70 - Taxonomie végétale et phytogéographie F01 - Culture des plantes plante racine génétique des populations distribution géographique variation génétique variété adoption de l'innovation petite exploitation agricole Dioscorea Ipomoea batatas Manihot esculenta Colocasia esculenta http://aims.fao.org/aos/agrovoc/c_6641 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_8157 http://aims.fao.org/aos/agrovoc/c_3878 http://aims.fao.org/aos/agrovoc/c_7113 http://aims.fao.org/aos/agrovoc/c_2288 http://aims.fao.org/aos/agrovoc/c_3937 http://aims.fao.org/aos/agrovoc/c_4579 http://aims.fao.org/aos/agrovoc/c_1765 Vanuatu http://aims.fao.org/aos/agrovoc/c_5159 Ex-situ collections of vegetatively propagated root crops are difficult to maintain in developing countries. On-farmconservation could be a solution but is more complex for vegetatively propagated than for sexually propagated species. In Vanuatu, a Melanesian archipelago where yam, taro, sweet potato and cassava are staples, a study was undertaken to develop an on-farm conservation system based on the geographic distribution of allelic diversity. Two years after the introduction of new varieties, a survey was conducted with 449 farmers located on 10 different islands. In order to evaluate on-farm conservation efficiency, qualitative and quantitative investigations were conducted and data were analysed. The conclusion was that farmers do enrich their varietal portfolioswith introduced exotic genotypes thus broadening the narrow genetic bases of some species. Nevertheless, no local varieties were lost. Significant geographic distribution of clones of new varieties throughout the archipelago also took place via spontaneous, informal distribution to farmers' relatives. These encouraging results point to the potential impact of the geographic distribution of allelic diversity on smallholders' varietal portfolios. On-farm conservation appears to be an appropriate strategy for the conservation of root crop germplasm diversity inVanuatu. Potential applications for transfer of the methodology to other locations are discussed. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/557781/1/document_557781.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1017/S0014479710000591 10.1017/S0014479710000591 info:eu-repo/semantics/altIdentifier/doi/10.1017/S0014479710000591 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1017/S0014479710000591 |
institution |
CIRAD FR |
collection |
DSpace |
country |
Francia |
countrycode |
FR |
component |
Bibliográfico |
access |
En linea |
databasecode |
dig-cirad-fr |
tag |
biblioteca |
region |
Europa del Oeste |
libraryname |
Biblioteca del CIRAD Francia |
language |
eng |
topic |
F30 - Génétique et amélioration des plantes F70 - Taxonomie végétale et phytogéographie F01 - Culture des plantes plante racine génétique des populations distribution géographique variation génétique variété adoption de l'innovation petite exploitation agricole Dioscorea Ipomoea batatas Manihot esculenta Colocasia esculenta http://aims.fao.org/aos/agrovoc/c_6641 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_8157 http://aims.fao.org/aos/agrovoc/c_3878 http://aims.fao.org/aos/agrovoc/c_7113 http://aims.fao.org/aos/agrovoc/c_2288 http://aims.fao.org/aos/agrovoc/c_3937 http://aims.fao.org/aos/agrovoc/c_4579 http://aims.fao.org/aos/agrovoc/c_1765 http://aims.fao.org/aos/agrovoc/c_5159 F30 - Génétique et amélioration des plantes F70 - Taxonomie végétale et phytogéographie F01 - Culture des plantes plante racine génétique des populations distribution géographique variation génétique variété adoption de l'innovation petite exploitation agricole Dioscorea Ipomoea batatas Manihot esculenta Colocasia esculenta http://aims.fao.org/aos/agrovoc/c_6641 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_8157 http://aims.fao.org/aos/agrovoc/c_3878 http://aims.fao.org/aos/agrovoc/c_7113 http://aims.fao.org/aos/agrovoc/c_2288 http://aims.fao.org/aos/agrovoc/c_3937 http://aims.fao.org/aos/agrovoc/c_4579 http://aims.fao.org/aos/agrovoc/c_1765 http://aims.fao.org/aos/agrovoc/c_5159 |
spellingShingle |
F30 - Génétique et amélioration des plantes F70 - Taxonomie végétale et phytogéographie F01 - Culture des plantes plante racine génétique des populations distribution géographique variation génétique variété adoption de l'innovation petite exploitation agricole Dioscorea Ipomoea batatas Manihot esculenta Colocasia esculenta http://aims.fao.org/aos/agrovoc/c_6641 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_8157 http://aims.fao.org/aos/agrovoc/c_3878 http://aims.fao.org/aos/agrovoc/c_7113 http://aims.fao.org/aos/agrovoc/c_2288 http://aims.fao.org/aos/agrovoc/c_3937 http://aims.fao.org/aos/agrovoc/c_4579 http://aims.fao.org/aos/agrovoc/c_1765 http://aims.fao.org/aos/agrovoc/c_5159 F30 - Génétique et amélioration des plantes F70 - Taxonomie végétale et phytogéographie F01 - Culture des plantes plante racine génétique des populations distribution géographique variation génétique variété adoption de l'innovation petite exploitation agricole Dioscorea Ipomoea batatas Manihot esculenta Colocasia esculenta http://aims.fao.org/aos/agrovoc/c_6641 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_8157 http://aims.fao.org/aos/agrovoc/c_3878 http://aims.fao.org/aos/agrovoc/c_7113 http://aims.fao.org/aos/agrovoc/c_2288 http://aims.fao.org/aos/agrovoc/c_3937 http://aims.fao.org/aos/agrovoc/c_4579 http://aims.fao.org/aos/agrovoc/c_1765 http://aims.fao.org/aos/agrovoc/c_5159 Camus, P. Lebot, Vincent On-farm assessment of clonal introduction of root crops diversity in Vanuatu, Melanesia |
description |
Ex-situ collections of vegetatively propagated root crops are difficult to maintain in developing countries. On-farmconservation could be a solution but is more complex for vegetatively propagated than for sexually propagated species. In Vanuatu, a Melanesian archipelago where yam, taro, sweet potato and cassava are staples, a study was undertaken to develop an on-farm conservation system based on the geographic distribution of allelic diversity. Two years after the introduction of new varieties, a survey was conducted with 449 farmers located on 10 different islands. In order to evaluate on-farm conservation efficiency, qualitative and quantitative investigations were conducted and data were analysed. The conclusion was that farmers do enrich their varietal portfolioswith introduced exotic genotypes thus broadening the narrow genetic bases of some species. Nevertheless, no local varieties were lost. Significant geographic distribution of clones of new varieties throughout the archipelago also took place via spontaneous, informal distribution to farmers' relatives. These encouraging results point to the potential impact of the geographic distribution of allelic diversity on smallholders' varietal portfolios. On-farm conservation appears to be an appropriate strategy for the conservation of root crop germplasm diversity inVanuatu. Potential applications for transfer of the methodology to other locations are discussed. |
format |
article |
topic_facet |
F30 - Génétique et amélioration des plantes F70 - Taxonomie végétale et phytogéographie F01 - Culture des plantes plante racine génétique des populations distribution géographique variation génétique variété adoption de l'innovation petite exploitation agricole Dioscorea Ipomoea batatas Manihot esculenta Colocasia esculenta http://aims.fao.org/aos/agrovoc/c_6641 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_8157 http://aims.fao.org/aos/agrovoc/c_3878 http://aims.fao.org/aos/agrovoc/c_7113 http://aims.fao.org/aos/agrovoc/c_2288 http://aims.fao.org/aos/agrovoc/c_3937 http://aims.fao.org/aos/agrovoc/c_4579 http://aims.fao.org/aos/agrovoc/c_1765 http://aims.fao.org/aos/agrovoc/c_5159 |
author |
Camus, P. Lebot, Vincent |
author_facet |
Camus, P. Lebot, Vincent |
author_sort |
Camus, P. |
title |
On-farm assessment of clonal introduction of root crops diversity in Vanuatu, Melanesia |
title_short |
On-farm assessment of clonal introduction of root crops diversity in Vanuatu, Melanesia |
title_full |
On-farm assessment of clonal introduction of root crops diversity in Vanuatu, Melanesia |
title_fullStr |
On-farm assessment of clonal introduction of root crops diversity in Vanuatu, Melanesia |
title_full_unstemmed |
On-farm assessment of clonal introduction of root crops diversity in Vanuatu, Melanesia |
title_sort |
on-farm assessment of clonal introduction of root crops diversity in vanuatu, melanesia |
url |
http://agritrop.cirad.fr/557781/ http://agritrop.cirad.fr/557781/1/document_557781.pdf |
work_keys_str_mv |
AT camusp onfarmassessmentofclonalintroductionofrootcropsdiversityinvanuatumelanesia AT lebotvincent onfarmassessmentofclonalintroductionofrootcropsdiversityinvanuatumelanesia |
_version_ |
1792497703734738944 |