Adaptation and productivity of selected grain legumes in contrasting environments of KwaZulu-Natal, South Africa.

摘要: Underutilised grain legumes are being promoted as part of crop diversification efforts. However, the lack comparable information to major is limiting these The first benchmarking study compare development and productivity selected underutilised [bambara groundnut (Vigna subterranea) cowpea inguiculata) [groundnut (Arachis hypogaea) common bean (Phaseolus vulgaris)] under varying environments was conducted in KwaZulu-Natal, South Africa during 2015/16 2016/17. A completely randomised block design with three replications used at all sites. Crop phenology, yield, water use (ET) (WP) were determined for crops. Data analysed separately using ANOVA. Biplot analysis done GGE. Bambara slow emerge across sites seasons (> 211 degree days). Common early maturing (  1699 Yield varied significantly (P < 0.05) seasons. For environments, had lowest ET (208–313 mm); bambara highest (437 mm), which recorded 2015/16. WP (0.98 0.12 kg m−3, respectively) observed groundnut. Cowpea most stable (0.28–0.38 kg m−3). Based on mean values, out-yielded legumes. Crops behaved differently different environments. potential limited sandy soils. There need investments improving yield make them more attractive diversification.