Response of Mungbean (<i>Vigna radiata</i>L Wilczek) Genotypes to Different Spacing Types in Derived Savannah Agroecology of Southeast Nigeria

Population density is an important determinant of crop yield. For optimum production, the best spacing requirement must be adopted. Although recommended mungbean abundant in literature globally, there no such information on studies conducted within derived savannah agroecological zone southeast Nigeria, despite crop’s usefulness as food, green manure, and nitrogen fixer. We hypothesized that may vary with genotype. Hence, this study was to evaluate response three genotypes four types agroecology. The experiment a split-plot design genotype (Tvr18, Tvr65, Tvr83) main plot treatment plant (30x10, 40x10, 30x15, 40x15 cm) sub-plot treatment. Data were collected 19 agronomic traits. Analysis variance (ANOVA) showed 30x10 cm influenced significantly higher (p<0.05) values most traits measured while Tvr18 pod seed attributes seed-yield (0.80 t/ha) compared Tvr83 (0.52 which least. interaction effect by gave yield (1.37) t/ha (0.62 GGE biplot analysis genotype-Tvr83 wider cm.