Levels of nutritionally-important trace elements and macronutrients in edible leaves and grain of 27 nodulated cowpea (Vigna unguiculata L. Walp.) genotypes grown in the Upper West Region of Ghana |
| |
Authors: | Alphonsus K Belane Felix D Dakora |
| |
Affiliation: | 1. Department of Crop Science, Tshwane University of Technology, 175 Nelson Mandela Drive, Private Bag X680, Pretoria 0001, South Africa;2. Chemistry Department, Tshwane University of Technology, 175 Nelson Mandela Drive, Private Bag X680, Pretoria 0001, South Africa |
| |
Abstract: | Analysis of edible leaves and grain of 27 nodulated cowpea genotypes in 2005 and 2006 revealed differences in mineral density. Cowpea genotype IT82D-889 exhibited high concentrations of P, K, Ca, Mg and S in grain relative to Brown Eye, IT84S-2246 and TVx3236. Fe concentration in cowpea grain ranged from 63 mg/kg in Ngonji to 137 mg/kg in Soronko, while Zn was 44 mg/kg in Ngonji and 65 mg/kg in Vuli-1. Leaf concentrations of Cu, Mn, B and Fe were consistently higher in the genotypes Apagbaala, IT84S-2246, Fahari and IT97K-499-39, while Fe, Cu, B and Zn were lower in TVu11424, Brown Eye, Vuli-1, Soronko and Glenda. Compared with spinach, cowpea leaves had greater levels of Fe (5-fold in magnitude), Mn, P, Ca, K and Mg. Based on these data it is likely that when and where the dietary intake of cowpea leaves is high in Africa, children would suffer less from micronutrient deficiency. |
| |
Keywords: | Diet Crop species Micronutrient deficiency Mineral density Nutrient-poor soils |
本文献已被 ScienceDirect 等数据库收录! |
|