Stability and performance of Bambara groundnut (Vigna subterranea (L.) Verdc.) genotypes in different South African environments

Abstract

Global food security faces challenges arising from population growth, climate change, and the prevalence of monoculture agriculture. In addressing these concerns, Bambara groundnut (Vigna subterranean (L.) Verdc.) emerges as a promising crop due to its nutritional richness and resilience in marginal environments. Despite its potential, research gaps persist, particularly in the context of South Africa. The study aimed to evaluate the performance and stability of Bambara groundnut genotypes in two South African agroecological environments. Field trials were conducted at Brits and Ukulinga, with data collected on grain yield, hundred-seed weight, and other agronomic traits. Genotypes Acc 179, 184, and 82 demonstrated significant stability and high yields across both locations, showing promise for future breeding programs. The results suggest that these genotypes can adapt to diverse agroecological areas, enhancing Bambara groundnut production in South Africa. Future research should focus on breeding efforts to further improve crop resilience.