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DOI: 10.15580/GJAS.2016.4.020416032 Genetic control by creation of the coconut varieties expressing both Lethal Yellowing (LY) disease resistance and good agronomic performances led breeders to select in Tall populations which contain large diversity, some peculiar palms used as genitors. Thus, 18 genotypes of Vanuatu Tall (VTT) coded from G1 to G18 were described from 30 quantitative descriptors assessed on the coconut organs that are stem, leaf, inflorescence and fruit. The results showed that these 18 VTT genotypes were divided into two agro-morphological clusters: (i) genotypes providing large nuts with heavy components and (ii) the genotypes characterized by small fruit with weak component weights. Therefore, the genotypes that belong to first cluster G1, G4, G6, G7, G8, G9, G11, G13, G14, G16, G17 and specially G15 which also exhibited a vegetative robustness, could be selected as parent palms and involved in crosses with Dwarf or Tall coconut populations to develop hybrids that are potentially resistant to LY disease and producing large fruits with heavy components. Submitted: 04/02/2016 Accepted: 25/01/2016 Published: 08/04/2016

greener journal of agricultural science

Morphological Diversity among 18 Genitors of Vanuatu Tall (VTT) Coconut (Cocos nucifera L.) Population used in Crosses for Hybrids Resistant to Lethal Yellowing Disease Selection at Port-Bouët, Côte d’Ivoire