Adoption and varietal diversification of vegetables in Madagascar

L. Ramanankaja, M.F.J. Rakotonirina
A survey was undertaken in Antovotany-Ambohijanaka, Region of Analamanga in order to answer to the following question: “What is the farmer's logic in their choice of cultivated vegetable and in the varietal choice as well?” The results show that the chosen culture is not the same for all farmers. Each farmer family adopts in average 6 speculations. However, it has been reported that leek (Allium porum L.) is cultivated by 95% of the surveyed farmers, followed by Indian/Chinese mustard (Brassica juncea L. Czern) by 84% of them and beetroot, by 78%. These choices are justified by the fact that these speculations give good added value, because a big part of the harvest is being commercialized in the capital's markets. Regarding varietal diversification, just two cultivars were enrolled for both cultures. The adoption of one or another cultivar is dictated either by the productivity and the capability of adaptation to the local environmental conditions, case of the preferred leek cultivar, or by the consumer's preference, case of the preferred mustard cultivar. Risks of genetic erosion are to be feared as most farmers produce their own seeds. So, once someone does not cultivate a given vegetable anymore, the production of seeds ceases as well. Generally, this is the case of almost all vegetable cultivars in Madagascar, except for a few of them, seeds of which are produced by the private sector; the public sector is not in charge of these cultures. Thereby, conservation measures are to be undertaken in order to avoid these dangers.
Ramanankaja, L. and Rakotonirina, M.F.J. (2020). Adoption and varietal diversification of vegetables in Madagascar. Acta Hortic. 1267, 21-26
DOI: 10.17660/ActaHortic.2020.1267.4
horticulture, cultivar, phytogenetic resources, genetic erosion, conservation

Acta Horticulturae