摘要： 本研究以甘薯为砧木, 以绿豆为接穗进行远缘嫁接, 获得了薯绿豆新品种。与小灰角绿豆相比, 其千粒重提高94.4%；碳水化合物含量增加12.8%；产量提高14-56%。植株形态、花粉粒形态、淀粉粒形态和染色体数目均有明显变化。研究表明, 用不同科间嫁接的方法获得新品种是一个有效的方法。

关键词: 绿豆, 甘薯, 嫁接

Abstract: Sweet potato-mung bean, a new varfety, had been acquired by grafting between these two plants where the sweet potato was as stock and the mung bean as scion. Compared with the original mung bean, there were many obvious changes in this new variety: Thousand-grain weight increased 94.4%, the carbohydrates content increased 12.8%;the protein consent decreased 0.3%;the yield increased 14-56%. Beside this, the shape of plants, the form of pollen grains and the starch grains as well as the number of chromosome were also different. This investigation indicated that it is possible to acquire a new variety by means of distant grafting.

Key words: Mung bean, Sweet potato, Grafting