Analysis of Growth and Yield Parameters for Four Cowpea Varieties in Kirimiro Ecological Conditions

Abstract

Cowpea (Vigna unguiculata L.Walp) is a grain legume and a food major importance for millions of people, especially in less developed countries. It is not only rich in nutrients, but also in nutraceuticals such as dietary fibre, antioxidants and polyunsaturated fatty acids and polyphenols. An experiment was carried out in three blocks completely randomized at Rukoba hill of Kirimiro region to analyse the growth and yield parameters of four cowpea varieties ( Local, Katumani, Rurandaranda and Fahari) to assess the variety which is more adapted to the ecological conditions of the region. The studied parameters were: leaves number, leaf length and width, plant height, pods number per plant, leaf area, grains number per pod, plant height at pods formation and yield. The outcomes showed a significant increase in leaf length and width per plant for the Rurandarada variety than the local and other varieties. Moreover, this variety recorded significantly enhanced leaf area and an effectively improved plant height. Furthermore, rurandarada variety recorded a noteworthy increase in leaves number and has significantly improved yield compared to others. The study highlighted rurandarara variety as the most adapted variety. This suggested that rurandaranda could be considered as a variety that could be cultivated in the area for the promotion of food security and the health of the population.