以显性雄性不育小麦为材料，采用改良半姊妹和混合轮回选择两种方案，对同一基础群体C_0进行了四轮选择。

The same basic population C0 had been selected for four cycles with Dominant male sterile wheat by means of the half-sib mating recurrent selection and the mass recurrent selection programmes.

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到目前为止，对半矮秆水稻的隐性高秆突变已有不少报道，至于半矮秆水稻的显性高秆突变，国内外尚未见报道。

Until now, some rice recessive long culm mutants from the semidwarf varieties have been reported, but there has been no report on the dominant long culm mutant.

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