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通过分期播种，调查分析了9个水稻核不育系的不育性表现与其实用性。结果表明，9301S、9302S、9303S和LS2S4份材料在沈阳自然光温条件下，表现不育期较长，不育性相对稳定，具有较好的利用价值。
By staging sowing, the sterility performance and practicality of 9 rice CMS lines were investigated. The results showed that the materials of 9301S, 9302S, 9303S and LS2S showed relatively longer sterile period and relatively poor sterility under the natural light and temperature conditions in Shenyang, and had good utilization value.