The primary goal of this study was to compare the multiplication rates of yam varieties propagated through organogenesis and somatic embryogenesis (SE). Callus was induced from axillary bud explants of three genotypes of Dioscorea rotundata (Asiedu, Ekiti2a, and Kpamyo) and two genotypes of Dioscorea alata (Swaswa and TDa2014) cultured in Murashige and Skoog (MS) medium containing 9.1 µM 2,4-dichlorophenoxylacetic acid and 5.4 µM naphthaleneacetic acid. Plantlets were regenerated in MS containing 4.4 µM benzylaminopurine and 34 µM uniconazole-P through SE. Single-node cuttings of the five genotypes were grown in MS for 8 wk via organogenesis. The SE and organogenesis regenerants were acclimatized and potted in a 2 (propagation techniques (PTs)) × 5 (genotypes) factorial arranged in a completely randomized design (r = 10). The multiplication ratios (MR), number of tubers (NoT) of the SE, and organogenesis regenerants were collected and analyzed using ANOVA, and means were separated using DMRT (P ≤ 0.05). The SE and organogenesis MR ranged from 1:2 (TDa2014) to 1:8 (Asiedu) and 1:4 (Asiedu) to 1:5 (Ekiti2a and TDa2014), respectively. The NoT differed among genotypes, ranging from 1.15 ± 0.49 (Swaswa) to 2.45 ± 1.39 (Asiedu), and between PTs, ranging from 1.42 ± 0.70 (SE) to 1.86 ± 1.11 (organogenesis). The optimum propagation pathway was genotype-specific.

本研究的主要目标是比较通过器官发生和体细胞胚胎发生（SE）繁殖的山药品种的增殖率。在含有 9.1 µM 2,4-二氯苯氧基乙酸的 Murashige 和 Skoog (MS) 培养基中培养的三种基因型薯蓣（Asiedu、Ekiti2a 和 Kpamyo）和两种基因型扁薯（Swaswa 和 TDa2014）的腋芽外植体诱导愈伤组织和 5.4 µM 萘乙酸。通过 SE，在含有 4.4 µM 苄氨基嘌呤和 34 µM 烯效唑-P 的 MS 中再生植株。五个基因型的单节点插条通过器官发生在 MS 中生长 8 周。SE 和器官发生再生体经过适应并以完全随机设计 ( r  = 10)排列的 2（繁殖技术 (PT)）× 5（基因型）阶乘进行盆栽。使用方差分析收集并分析 SE 的增殖率 (MR)、块茎数 (NoT) 和器官发生再生体，并使用 DMRT 分离平均值 (P ≤ 0.05 )  。SE 和器官发生 MR 的范围分别为 1:2 (TDa2014) 至 1:8 (Asiedu) 和 1:4 (Asiedu) 至 1:5（Ekiti2a 和 TDa2014）。基因型之间的 NoT 不同，范围为 1.15 ± 0.49 (Swaswa) 至 2.45 ± 1.39 (Asiedu)，PT 之间的 NoT 不同，范围为 1.42 ± 0.70 (SE) 至 1.86 ± 1.11（器官发生）。最佳繁殖途径是基因型特异性的。