Influence de la cueillette des boutons floraux sur la production de tubercules chez le haricot ailé ou pois carré (Psophocarpus tetragonoiobus [L.] DC)

Effect of reproductive pruning on the tuber yield of the winged bean (Psophocarpus tetragonolobus (L) D.C.). The effects were studied of periodical pruning of flowers buds ans young pods on the yield of tubers in three cultivars (Chimbu, WB 15-12 and ISDR/Bukavu) of the winged bean (Psophocarpus tetragonoiobus (L.) DC). Weakly removal of the flowers, buds and immature pods increased significantly the tuber yield of 49 %. We observed a best response to the treatment with ISDR/Bukavu with 94 % yield increase, but has the lowest yield without pruning

Détermination de la composition chimique partielle des graines de trois cultivars de Psophocarpus tetragonolobus (L.) DC

Determination of some chemical constituents of seeds of three Psophocarpus tetragonolobus cultivars. Studies have been conducted to establish the nutritional characteristics of three cultivars of the winged bean (Psophocarpus tetragonolobus (L.) DC). Protein, lipid, amino acids and mineral compositions of the beans have been determined. The protein and fat contents were 37 to 40 % and 16 to 22 % respectively. Defatted beans meal had a very high protein content (47-49 %). The average mineral levels in the seeds, expressed as g/kg DM, were 6.6g, 1.6g, 0.08g and 0.06g for phosphorus, calcium, iron and zinc respectively. The amino acids profile revealed very high levels of aspartic acid, glutamic acid, lysine, arginine, leucine and threonine as compared to these of soybean protein. Sulfur amino acids levels are low