Cowpea is a legume consumed in Côte d'Ivoire. There are many cultivars whose seeds are widely available. This study aimed to determine some agronomic and physicochemical characteristics of some cowpea cultivars in order to identify differences and if possible select the best for appropriate uses. The study included 16 cultivars; the agro-morphological variability was assessed on the basis of eight parameters. The results showed that the accessions N21DR, N18ZR, N10BBrp produced more seeds in a relatively short growing cycle. For the biochemical characterization, parameters such as moisture, ash, protein, fat, total carbohydrates and energy value were determined by conventional methods. Differences were observed between the physicochemical parameters of the analyzed cultivars seeds. The cultivar (N19ZBoBp) recorded the highest protein content.Keywords: Cowpea, chemical composition, agronomic parameters, food safety, productivityEuropean Scientific Journal August 2016 edition vol.12, No.24 ISSN: 1857 -7881 (Print) e -ISSN 1857-7431 363 RésuméLe niébé est une légumineuse consommée en Côte d'Ivoire. Il existe de nombreux cultivars dont les graines sont largement disponibles. La présente étude a eu pour objectif de déterminer quelques caractéristiques agronomiques et physicochimiques de quelques cultivars de niébé aux fins d'identifier des différences et sélectionner si possible les meilleurs pour des usages appropriés. L'étude a porté sur 16 accessions, la variabilité agromorphologique a été évaluée sur la base de huit paramètres. Les résultats ont montré que les accessions N21DR, N18ZR, N10BBrp ont produit plus de graines dans un cycle de culture relativement court. Pour la caractérisation biochimique, les paramètres tels que l'humidité, la teneur en cendres, les protéines, les lipides, les glucides totaux et la valeur énergétique ont été déterminés selon des méthodes conventionnelles. Des différences ont été observées entre les paramètres physicochimiques des graines de cultivars analysés. Le cultivar (N19ZBoBp) a enregistré la teneur la plus élevée en protéine.

This work aims to propose to the peasants producing varieties of seeds, biomass and to determine some physico-chemical characteristics of these seeds. Thirteen agronomic parameters and 8 characters were evaluated. The got results showed an important variability between the ecotypes. The most relevant variables which make it possible to describe variability between the groups are the number of pod, the number of seeds, the weight of the hulls, the biomass, and the rate of filling, the height and the scale. Thus, the varieties N21DR, N10BBrp, N8BRcp, and N18ZRET N9BN produced more seeds whereas the varieties N15ZBoNg and N7BRc produced more air biomass. They can be selected at agronomic ends within the framework of the fertilization of the grounds. The results revealed that the seeds are energy foods, rich in proteins and glucids. On the other hand, they are low in lipids, ashes and have low moisture being able to facilitate their conservation over one relatively long period. The cultivar N1KBN which recorded the highest ash content could be used in the fortification of food. Cultivar white N1KBN recorded the highest content of proteins. Consequently, its seeds could be used to supplement traditional food and to be recommended in the sector of the made up flours. The use of seeds in these fields could contribute to reduce the protein deficits at certain poor populations, in the grip of protein-energy diseases.

Several studies conducted in recent years in Côte d'Ivoire reveal that agriculture is increasingly affected by the adverse effects of climate variability. The present study aims at evaluating the effect of the zone and the year of cultivation on the productivity of maize in the Central and North-Central zones of Cote d'Ivoire. It was carried out for two years (2020 and 2021). The experimental design used was a completely randomized block design with three replications. Observations were made on 12 agronomic parameters (plant size, internode size, collar diameter, number of leaves, number of internodes, cob insertion level, cob length, cob diameter, total kernels, cob dry weight, kernel dry weight, yield). The results showed that all agronomic traits of maize were significantly influenced by locality, except for the number of leaves. The highest values of the traits were observed in the locality of Bouaké. However, the year of cultivation did not influence the agronomic parameters of maize. This study will help to avoid yield decreases due to rainfall disturbances as a consequence of climate change.

This study aims to assess the effect of variety and organic and mineral fertilization on the agronomic parameters of okra. The experimental set-up used was a completely randomized en bloc device. The treatments used are : T0 (controls without amendment), T1 (10 t / ha of chicken manure), T2 (10 t / ha of sawdust, T3 (2.5 t / ha of NPK 15-15 fertilizer) -13). The two varieties compared are the improved variety called Clemson spineless and the local variety Koto or Soudais or gombo Baoule. The results obtained showed significant differences between the two varieties as well as differences between the fertilizers used at (p> 0.05). Organic fertilizer made from chicken manure yielded the best results followed by mineral fertilizer and finally sawdust.

This study aims to evaluate the effect of water stress and organo-mineral fertilization on the morphological parameters of two varieties of okra.  The treatments used (fertilizers) are: T0 (controls without amendment), T1 (4 kg chicken manure), T2 (4 kg sawdust, T3 (1 kg NPK 15-15-13 fertilizer). Three (3) types of water regimes were applied, R3 (watering 3 times per week), R5 (watering 5 times per week), and R7 (watering 7 times per week). The results obtained in terms of fertilizers applied to the soil did not show any significant influence on plant growth (p> 0.05). As for the other results, they showed that 100% of the parameters studied were influenced by the variety effect, while 33% were influenced by the watering frequency effect. Four parameters were influenced by the interaction between variety and frequency of watering, which shows that the variety used and frequency of watering play an important role in okra production. Both the organic and mineral fertilizers applied to the soil showed no significant effect on the measured parameters, which could be as a result of non-decomposition of organic matter and insufficiency in the amount of mineral fertilizers required to supply the plant needs.