Genotype-by-environment interaction for grain yield among novel cowpea (Vigna unguiculata L.) selections derived by gamma irradiation
Lydia Horn, Hussein Shimelis, Fatma Sarsu, Learnmore Mwadzingeni, Mark D. Laing
The Crop Journal . 2018, (3): 306 -313 .  DOI: 10.1016/j.cj.2017.10.002