Adaptation of plants derived from cultivated yam of Dioscorea cayenensis–D. rotundata complex species seeds germination in two agroecological zones of Benin

Vegetative propagation of plants promotes the accumulation viruses in plant material; this causes loss vigor and consequently drop vegetable yield. Keep up productivity level vegetatively propagated plants; it is therefore important to regenerate genetic material by sexual reproduction improve biodiversity. The main objective study yam seeds way, specifically assess response seedlings from two agroecological areas, area IV (Djougou), Sudanese climate V (Bantè), transition climate. Seedling were transplanted areas using a completely Randomized design with three replications. Data was analyzed one way ANOVA at 5% significance mean comparison test. survival rate significantly different, 55.41% zone 23.60% V, but tuberization similar, 55.63%; 57.62%; V. average tubers length their weight are respectively 13.21 cm 24.87 ± 19.22 g 8.95 10.30 9.91 This results show that microtubers produced high degree heterogeneity, and, varieties creation improvement possible seeds. technique would promote selection adapted current climatic conditions.