关键词: 南繁;问题;建议

Abstract:

Being an unique crop breeding method firstly initiated by China, “Nan Fan” has made special contributions to crop breeding for shortening breeding process, and accelerating generation reproduction. So far, about 80% of over 5 000 varieties all over the country have been bred by  “Nan Fan” crop breeding method. On the basis of summing up present status of “Nan Fan”, in order to take advantages of “Nan Fan” to speed up the cultivation of new crop varieties, and to promote stable development of grain and agriculture production, this paper analyzed the existing problems limiting its development  in planning, management, infrastructure construction and land use conflicts for “Nan Fan”. It also put forward recommendations accordingly.

Key words: “Nan Fan”, problems, suggestion