Effect of the growing area on the agronomic parameters of three varieties of cowpea [vigna unguiculata (l.) walp, fabaceae] cultivated in côte d’ivoire

This work was carried out to assess the effect of the growing area on the agronomic parameters of three cowpea varieties (N5BBr, N6BR and N9BN) grown in Côte d'Ivoire. This took place in the Haut Sassandra (Daloa) and Nawa (Soubré) regions. A completely randomized block experiment was adopted. The parameters measured concerned the height, the wingspan, the number of leaves, the number of pods, the weight of pods, the dry biomass, the number of seeds, the weight of seeds, the harvest index and the rate of filling. The results showed that the cultivation area had a significant impact on the parameters measured due to the different soil and climatic conditions. It therefore emerges from this study that the N9BN varieties produced a large quantity of seeds and biomass in the locality of Soubré.