A5067385644- Potato Plant Research
- Banana Cultivation and Research
- Cocoa and Sweet Potato Agronomy
- Cassava research and cyanide
- Agriculture and Rural Development Research
- African Botany and Ecology Studies
- Plant Pathogens and Resistance
- Seed and Plant Biochemistry
- Agronomic Practices and Intercropping Systems
- Food composition and properties
- Plant Disease Resistance and Genetics
- Agriculture and Agroindustry Studies
- Agricultural pest management studies
- Oil Palm Production and Sustainability
- Legume Nitrogen Fixing Symbiosis
- Genetically Modified Organisms Research
- Genetic Mapping and Diversity in Plants and Animals
- Meat and Animal Product Quality
- Advances in Cucurbitaceae Research
- Genetics and Plant Breeding
- Pacific and Southeast Asian Studies
- Phytochemical Studies and Bioactivities
- Plant Virus Research Studies
- Spectroscopy and Chemometric Analyses
- Plant tissue culture and regeneration
Centre National de Recherche Agronomique
2015-2024
Abstract Two Dioscorea alata populations were generated by hand pollination between contrasted diploid genitors. Population A (74F × Kabusa) was composed of 121 progenies while population B 14M) involved 193 progenies. These two assessed over consecutive years regarding important tuber quality traits. Analysis variance showed that the genotype had greatest influence on phenotypic scores. Also for some traits, effect year_replicate strong. The heritabilities most traits high. Based these data...
Despite the importance of yam ( Dioscorea spp.) tuber quality traits, and more precisely texture attributes, high-throughput screening methods for varietal selection are still lacking. This study sets out to define profile good pounded provide tools based on predictive models using near infrared reflectance spectroscopy. Seventy-four 216 studied samples proved be moldable, i.e. suitable yam. While with low dry matter (<25%), high sugar (>4%) protein (>6%) contents, hardness (<5...
Abstract Yam ( Dioscorea spp.) is a major staple food whose production hampered by viral diseases. However, the prevalence, diversity, transmission, and impact of yam‐infecting viruses remain poorly documented. This study reports on symptomatology, molecular diversity eight in 38 D . rotundata accessions from germplasm collection 206 F 1 hybrid progenies maintained Côte d'Ivoire. Mean severity scores as assessed leaf symptoms ranged 2 to 4 3 hybrids, respectively. mosaic‐associated virus...
Abstract Monitoring genetic gain is crucial to ensure breeding programs' effectiveness and identify potential challenges areas for their improvement. Our study provides a first overview of the trends in tuber yield disease resistance traits IITA's (International Institute Tropical Agriculture) yam program. We used historical data (2010–2022) from multiple generations past cycles evaluated at 31 sites white Guinea ( Dioscorea rotundata Poir) pipeline 28 water alata L.) IITA its national...
Abstract Sweetpotato is cultivated in all the regions of Côte d’Ivoire for consumption and as a source income. Only varieties with white or yellow flesh are grown. Production nutritious orange-fleshed sweetpotato (OFSP) hampered by lack genetic resources planting material. To evaluate release OFSP varieties, on-farm demonstration tests were conducted women farmer groups Bondoukou, Nassian, Korhogo Bondiali north northeast d’Ivoire. Six varieties- ‘Kabode’, ‘Kakamega7’ (‘Irene’), ‘Tacha’,...
The sweetpotato is the seventh most important crop in world after wheat, rice, maize, potato, barley and cassava. It produced annually all regions of Côte d'Ivoire. Sweetpotato plays a role food security income generation for rural populations. However, facing challenges climate change leading to decline yields local cultivars. This phenomenon leads unproductive soils abandonment many crops, including sweetpotato. To address this problem, 15 genotypes from CNRA farmers were evaluated two...
Dioscorea alata (L.), also referred to as water, winged, or greater yam, is one of the most economically important staple food crops in tropical and subtropical areas. In Côte d’Ivoire, it represents, along with other yam species, largest crop significantly contributes security. However, studies focusing on better understanding structure extent genetic diversity among D. accessions, using molecular phenotypic traits, are limited. This study was, therefore, conducted assess pattern...
Yam is the first food crop in Côte d'Ivoire. It being cultivated under a traditional technique system with low output. Detailed profiling of current practices and opportunities for improvement essential to increase the benefits yam security income country. This study diagnosed practices, constraints, requirements order gain insight on cropping research development The surveys were conducted seven (7) regions main production area. Groups 60 producers per region investigated. Individual...
Manual crosses were carried out over two successive years on Dioscorea alata for the production of hybrid seeds between five females and seven males' parents with contrasting characteristics. A total 22951 flowers manually pollinated in both (14145 2016 8806 2017) 33 parental combinations. The ploidy levels determined by flow cytometry. crossed all diploids except female OA49 which was triploid. In fruiting seed rates comparable (25.06% 22.82%; 30.05% 30.18%). significant variation observed...
Starch, dry matter content (DMC), proteins, and sugars are among the major influences on yam tuber quality. Genetic improvement programs need simple, rapid, low-cost tools to screen large populations. The objectives of this work were, using a quantitative trait loci mapping approach (QTL) two diploid full-sib segregating populations, (i) acquire knowledge about genetic control these traits; (ii) identify markers linked genomic regions controlling each trait, which useful for marker-assisted...
Societal Impact Statement Yam plays an important role in ensuring food security Côte d'Ivoire, serving as a staple crop for 60% of the population and significant source income. It holds deep cultural significance Akan Gour ethnic groups. Preserving yam production is essential both preservation heritage. However, productivity decreasing while demand expected to double next 30 years. Soil degradation climate change are major threats production. This article contextualizes main factors...
Yam is an important food crop in Côte d'Ivoire.Nevertheless, its production facing many constraints including the inability to distinguish cultivated varieties from one another.Thus, different and species are designated by same names region other vice versa, called differently.The absence of major descriptors, which easy use main cause this confusion.The objective study propose agro-morphological descriptors identify, for a better determination yam D. alata.A total 91 accessions alata were...
Yam is a significant food source for populations in West Africa. During storage, diseases and infestations deteriorate the quality of tubers, reducing their shelf life. To improve yam conservation during storage Côte d'Ivoire, study was conducted to identify main pathogens pests associated with tuber rot storage. Sampling carried out from national genetic resources collection collect tubers showing signs rot. Two types were observed, each different coloration. Dry black, brown, maroon, or...
In an environment where the adoption of improved varieties resulting from plant breeding programs is limited, it essential to identify end-user preferences beforehand. A participatory survey was conducted in eight localities Korhogo and Bouaké regions (central northern Cote d'Ivoire respectively) producers' increase varieties. The study involved 160 producers consumers through focus group discussions individual interviews.
Collection and characterisation of plant materials is a crucial step in crop improvement programmes. The objective this study was to characterise sweet potato (Ipomoea batatas [L.] Lam.) collection from the Centre National de Recherche Agronomique (CNRA) Côte d'Ivoire, based on morphological characters, elucidate relationships among them. experiment carried out Fisher design with two replications. descriptive analyses revealed substantial phenotypic variation within collection. multiple...
Objectif: En Cote d’Ivoire la production annuelle de Dioscorea spp est insuffisante a cause conservation des tubercules qui reduisent fortement les rendements tubercule-semences. Il s’avere necessaire conserver tous cultivars d’igname sous forme vitroplant. Cette etude vise evaluer l’effet du milieu culture, desinfection et type d’explants primaires sur regeneration in vitro . Methodologie resultats: Les explants preleves tiges âgees 14, 21, 35 60 jours ont ete desinfectes mis en culture...
Afin de determiner une periode durant laquelle le rendement optimal est atteint avec des racines tubereuses qualite, evaluation du a ete menee sur quatre periodes recoltes patate douce la Station Recherche les Cultures Vivrieres Centre National Agronomique Bouake. L’etude porte huit varietes ameliorees selon un dispositif en split plot pour facteur principal et secondaire recolte. En general, parametres mesures (l’indice maladie, severite, nombre par plant - petites grandes -) sont...