Nouveaux Cultivars De Vigna unguiculata (L) Walp

H. Touvin

No 260361, 23rd Annual Meeting, August 23-28, 1987, St. John's, Antigua from Caribbean Food Crops Society

Abstract: Les travaux de selection, poursuivis depuis line d rza ine d/ anncns au Centre de Recherches AgronomiQues Antilles-Guyane sur Ie Vigna unguiculata ont conduit a la creation de nouveaux cultiv~rs qui repondent aux exigonces suivantes: assurer une recolte de grain durant touto I'annee (non photoperiodique) ; avoir une maturite groupee des gousses penmettant une recolte mecanisee (croissance determinee) ; fournir une production elevee et reguliere. Nos lignees ameliorees se repartissent en trois groupes selon leur tulisation: te groupe I, destine a l'alimentatiion humaine, comprend des lignees a gros grain rouge dont les gausses peuvent elre recoltees soit a l'etat immature comme pois e ecosser, soit a maturite complete, en sec ; Le groupe 2, destine a une production industrielle en vue d'enrichir en proteine les rations des monogastriques, est constitue par les lignees a haut rendement (18 a 22 Qx/ha) ; le groupe 3, destine a 1'affouragement en vert des ruminants et a l' arne1ioration proteique des ensilagos de graminees, comprend les types a grand developpernent vegetatif. Par a i l leurs , pour faciliter la culture du Vigna en association avec Ie bananier, i1 a ete mis au point Ie desherbage chimique select if par I 'ut i1 t-sat ton du Treflan (Triflura line) a la dose de 1,5 litre/ha ou de l'Amex 820 (Butraline) a la dose de 7,5 litres/ha. ---- Breeding work on Cowpea (Vigna unguiculata) at the INRA Anti TlesGuyane Research Centre during the last ten years has had three main objectives. These were: 1) To obtain a Vigna with many pods and large red grains as a shelling pea for traditional gardens and polyculture; 2) To increase the grain yield of determinate and non-photoperiodic lines for commercial production destined for supplementing monogastric animals; 3) To select forage types for ruminants, used fresh or to enrich graminaceous silage_ Significant results have been obtained in achieVing these three objectives by breeding from germplasm of various origins and use of genes favourable to yield increase. Details are given of the characteristics of the main parent lines, and the breeding scheme used as well as the performance of lines released to the growers. To facilitate production in association with bananas, a study of selective herbicides was made with Treflan (Trifluraline) at 1.5 litres/hectare, and Jlmex 820 (Butraline) at 7.5 litres/ha.

Keywords: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies (search for similar items in EconPapers)
Pages: 7
Date: 1987-08-23
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Persistent link: https://EconPapers.repec.org/RePEc:ags:cfcs87:260361

DOI: 10.22004/ag.econ.260361

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