| Titre |
Effect of two cytokinins in combination with acetic acid α-naphthalene on yams (Dioscorea spp.) genotypes’ response to in vitro morphogenesis |
| Auteurs |
AHANHANZO CORNEILLE [1],
GANDONOU GBOSSÈGNON CHRISTOPHE BERNARD [2],
AGBIDINOUKOUN ARNAUD [3],
DANSI ANAGONOU ALEXANDRE [4],
AGBANGLA CLÉMENT [5],
|
| Journal: |
African Journal of Biotechnology |
| Catégorie Journal: |
Internationale |
| Impact factor: |
0 |
| Volume Journal: |
9 |
| DOI: |
|
| Resume |
The effect of two growth regulator combinations was studied on the morphogenesis in vitro of 3 genotypes of yams (Kounondakou, Gnon-boya and RB 89579). Benzyl aminopurin (BAP) and zeatin (ZEAT) were tested, respectively at a concentration of 0.5 mg/l with the galzy glutamine basic medium containing naphtalene acetic acid (NAA) (0.5 mg/l). Stem fragments were used as explants. The number of stripped buds and explants having stem and roots are sampled after 2 weeks in culture. The dry matter content, the number of roots and leaves and the height of each young sprout were determined after 5 weeks in culture. The results obtained indicated that no break in leaf growth was observed on
the control medium (without cytokinin) but media with BAP and zeatin presented a good plants aerial part development. A significant interaction (p < 0.05) was observed between the genotypes and the type of cytokinin. However, the highest bud sprouting and shoot development were obtained with BAP. Thus, BAP can be considered as cytokinin having a good morphogenic aptitude when compared to zeatin for yam micropropagation. |
| Mots clés |
Cytokinin, auxin, morphogenesis, yam, Benin |
| Pages |
8837 - 8843 |
| Fichier |
(PDF) |