Seed metrics for genetic and shape determinations in African yam bean [Fabaceae] (Sphenostylis stenocarpa Hochst. Ex. A. Rich.) harms

• DOI: 10.5897/ajps.9000220
• Publication Date: 2010-04-30
• Authors: B. D. Adewale; O. B. Kehinde; Charity Aremu; Jacob O. Popoola; D. Dumet

The metric measures on seeds, their correlation and relationship are important for systematic breeding seed yield shape determination. Variations among eighty genotypes of African yam bean (AYB) six characters (seed length, width thickness ratios) were evaluated in this study. Paired comparison the revealed very high significance (P < 0.001), approving traits as unique parameters evaluating AYB. They equally exhibited substantial genetic variance: genotypic proportion total variation ranged between 90 97%, broad sense heritability (81 - 94%) advances (14 31%). Seed length had highest joint inheritance 99.04%, least, 4.32% was WT depicted by coheritability. Positive significant 0.05) phenotypic and/or existed thickness, three ratios with except WT. Non-significant negative LT There reliable highly linear relationships whose non-linear. Breeding concentration any these may simultaneously influence others. indices flatness index; they described common shapes AYB seeds as: round/spherical, oval/ellipsoidal, oblong rhomboid.