Genotype x environment interaction effect on grain yield of cowpea (Vigna unguiculata (L.) Walp) in Deciduous forest and Sudan savanna ecologies of Ghana - Francis Kusi; Richard Adu Amoah; Patrick Attamah; Shaibu Alhassan; Damba Yahaya; Justice Frederick Awuku; Jerry A. Nbonyine; Isaac Amegbor; Gloria Mensah; Issah Sugri; Mukhtaru Zakaria; Salim Lamini; et al. (PLoS ONE, 2025)