SEEDLING EMERGENCE STABILITY OF BAMBARA GROUNDNUT [VIGNASUBTERRANEA L. (VERDC.)] UNDER SAVANNA AND HUMID RAIN FOREST AREAS CONDITIONS DURING TWO CROPPING SEASONS IN COTEDIVOIRE

The yield of Bambara groundnut [Vignasubterranea L. (Verdc.)] is extremely low and unpredictable. Erratic yields have been attributed, at least in part, to variable or poor field establishment due seedling emergence. aim this study wasto evaluate under conditions, the effects genotype environment on emergence groundnut. Field experiment was conducted with 15 landraces Northern Southern regions Cote dIvoire. A randomized complete block design five replications used each environment. Estimated variables included number day for (DFE), mean time (MET), index (EI), 50% (T50) percentage (EP). Analysis variance revealed significant (P < 0.05) differences between genotypes, locations interaction x location all traits studied. Location year interactions were only DFE, EI EP.The highest DFE T50 MET observed Ci7. obtained genotypes Ci1, Ci2, Ci10, Ci11, Ci12, Ci13 Ci22. Highest recorded Ci15 (93.29%) Korhogo Ci4 (90.85%) Abidjan (89.59 %). Lowest EP Ci3 (42.33%).Correlations indicated that higher percentage, emerged faster (low MET, T50) exhibited (EI). AMMI analysis showed Ci4, Ci7, Ci14 ideal because they expressed high stable EP.