海带新品种的培育是养殖上重要问题之一。日本在海带杂交育种方面进行了一些研究,报道了海带杂种优势、杂种弱势和中间类型的出现,但目前仍未用于生产。我国方宗熙等对海带杂种优势也进行了研究。从58年开始采用自交、选择和射线处理等方法,培育出一些海带新品种,但总不够理想。以74年培育出的860和1170二个高碘高产新品种为 The cultivation of new kelp varieties is one of the important problems in aquaculture. Japan conducted some studies on kelp cross breeding and reported the emergence of kelp heterosis, heterosis and intermediate types, but it has not yet been used for production. Fang Zongxi and other Chinese kelp heterosis has also been studied. Since 58 years, self-breeding, selection and ray treatment methods have been used to breed new kelp varieties, but they are not always satisfactory. In 74 years to cultivate the 860 and 1170 two high iodine high yield new varieties