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选用目前主要推广的甘薯品种‘烟薯25’、‘商薯19’和‘徐薯22’为材料,研究了甘薯脱毒快速繁殖及驯化移栽。结果表明,秋天刚收获的薯块在36℃条件下催芽,10~15 d后芽苗可长到10 cm以上;剥取带有1~2个叶原基的茎尖进行培养,3个供试品种植株再生率均达到90%以上;脱毒试管苗炼苗2~3 d后直接栽植于塑料大棚,移栽成活率达95%以上;移栽5~6周后茎蔓可长到30~40 cm以上,即可剪切茎蔓扦插进行再繁殖。
The sweet potato varieties’Yangshu 25 ’,’ Shangshu 19 ’and’Xushu 22’, which are mainly popularized at present, were selected as the materials to study the fast propagation and domestication transplanting of sweet potato detoxification. The results showed that the freshly harvested potato tuber germinated at 36 ℃ in autumn, and the sprouts grew to more than 10 cm after 10 ~ 15 days. The shoot tips with 1 or 2 leaf primordia were stripped and cultured. Three cultivars Plant regeneration rate reached more than 90%; detoxification in vitro test tube seedlings 2 ~ 3 d directly planted in plastic greenhouses, transplanting survival rate of 95% or more; 5 ~ 6 weeks after transplanting stems can grow to 30 ~ 40 cm above, you can cut the stems and cuttings reproduction.