论我国杂交稻亲本繁育技术的演变

杂交稻亲本繁育技术是保证种子质量的重要环节。本文扼要介绍了几年来出现的各种繁育方法，并分析评价了各自的优缺点和应用前景。在“三系七圃法”基础上发展起来的“株系循环法”，预计有逐步推广的重大意义。

On Changing in Parental Reproduction Technique of Hybrid Rice in China

The reproduction technique for parental lines is key to ensure seed purity and quality of hybrid rice. With the development of hybrid rice technology, the parental reproduction technique has been gradually improved. Several methods presented for three line reproduction of hybrid rice were compared and discussed. Among them, the "Two-step Method" is too complicated; the "Three-grade Reproduction Method" is not reliable enough; the "Anther Culture Method" is beyond the scope of seed reproduction; the "Enzyme Selec- tion Method" can be used in identifying varietal typicalness; the "Genetically-purifying Method" is theoreti- cally and methodologically disputed; and the "Line - cycling Method" simplified and developed from the " Three - Line - Seven - Nursery Method" is most promising.