甘薯是我国的重要粮食作物之一,面积和总产均居世界首位。为进一步提高我国甘薯科研和生产水平我们开展了甘薯茎尖分生组织培养和繁殖试管苗的研究。结果表明:甘薯茎尖分生组织培养再生苗一旦成功,便极易进行繁殖,无论是组织培养试管微繁殖还是移栽到温室里繁殖,其成苗率都很高,粗生性与大田苗相似。这给甘薯茎尖分生组织试管苗的种质保存、交流及生产推广提供了依据。一、试管苗微繁殖首先把由甘薯茎尖分生组织培养而成的甘薯试管苗(甘薯茎尖分生组织试管苗)切成单节,接种在不含激素的 MS 基本培养基上培养成苗(切段繁殖),并 Sweet potato is one of the important grain crops in our country, its area and total output rank first in the world. In order to further improve the level of research and production of sweet potato in China, we carried out the research on the culture and propagation of sweetpotato meristem in vitro. The results showed that once the regenerated shoots of sweetpotato shoot tip meristem were successful, they could easily propagate. Whether the tissue culture tube was micropropagated or transplanted into the greenhouse, its seedling rate was very high and its crude growth was similar to that of the field seedlings . This provided the basis for the conservation, exchange and production promotion of the shoot apical meristem of sweet potato. First, the micropropagation of test tube seedlings First, the sweet potato tube seedlings (sweet potato shoot apical meristem test tube seedlings) which were made by the shoot apical meristem of sweet potato were cut into single sections and inoculated on MS basal medium without hormone to cultivate into Miao (cut propagation), and