Genotype by environment interaction and yield stability of cowpea (Vigna unguiculata (L.) Walp.) genotypes in moisture limited areas of Southern Ethiopia
Yasin Goa, Hussein Mohammed, Walelign Worku, Elias Urage
Abstract
), respectively, over environments. AMMI and GGE biplots analyses identified G16 (IT-89KD) and G14 (IT93K-293-2-2) as stable and high-yielding genotypes across environments and can be further tested in variety verification and later on released as varieties and can also be used for different breeding purposes in all cowpea growing areas in southern Ethiopia. The four high-yielding genotypes IT96D-604, 93K-619-1, IT97K-569-9, and IT99K-1060 could be recommended to be included in breeding or variety verification trials for release. Moreover, our results denoted the effectiveness of AMMI and GGE biplot techniques for selecting stable genotypes, high yielding, and responsive.
Topics & Concepts
AmmiBiplotVignaGene–environment interactionRandomized block designGenotypeGrain yieldCropBiologyAgronomyInteractionYield (engineering)BiotechnologyVeterinary medicineGeneticsMedicineMaterials scienceMetallurgyGeneAgricultural pest management studiesGenetics and Plant BreedingGenetic and Environmental Crop Studies