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株 1 S是用遗传距离较远的不同生态类型材料杂交育成的籼型广亲和温敏不育系。育性转换临界温度2 3℃左右 ,在湖南稳定不育期 90 d以上。开花习性好 ,异交结实率 4 0 %以上。海南冬繁和本地低温水深灌繁殖自交结实率在 3 0 %以上。具有广亲和性 ,一般配合力和特殊配合力均较强。用其选配的早晚稻组合已有 4个参加省区试 ,具有广阔的应用前景。
Strain 1S is an indica broad-compatible thermo-sensitive genic male sterile line crossed with different ecotypes of longer genetic distance. Fertility transition critical temperature of about 23 ℃, stable sterile period of more than 90 d in Hunan. Good flowering habits, outcrossing seed set rate of more than 40%. Hainan winter and local low-temperature deep-seeding selfing self-fertility rate of 30% or more. Has a wide range of affinity, general combining ability and special combining ability are strong. With its optional morning and evening rice combinations have been four to participate in the provincial test, has broad application prospects.