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早籼品种苗期耐冷性的遗传研究
引用本文:熊振民,闵绍楷.早籼品种苗期耐冷性的遗传研究[J].中国水稻科学,1990,4(2):75-78.
作者姓名:熊振民  闵绍楷
作者单位:中国水稻研究所,中国水稻研究所,中国水稻研究所,中国水稻研究所,中国水稻研究所 杭州 310006,杭州 310006,杭州 310006,杭州 310006,杭州 310006
摘    要: 应用人工气候箱低温处理.研究了早籼品种的苗期耐冷性。根据3叶期在6℃下处理48小时,3O℃/25℃ 24小时恢复生长后的叶片黄化程度及48小时恢复生长后的死苗情况,发现3个早籼品种的耐冷性均由一对显性基因控制。品种耐冷性愈差,电导率愈高,以此评价的耐冷性遗传也可能由一对主基因控制。

关 键 词:早籼品种  苗期  耐冷性
收稿时间:1900-01-01;

Genetic Analysis of Cold Tolerance at the Seedling Stage of Early Rice (O. sativa L. subsp. indica)
XIONG Zhenmin,MIN Shaokai,WANG Guoliang,CHENG Shihua,and CAO Liyong.Genetic Analysis of Cold Tolerance at the Seedling Stage of Early Rice (O. sativa L. subsp. indica)[J].Chinese Journal of Rice Science,1990,4(2):75-78.
Authors:XIONG Zhenmin  MIN Shaokai  WANG Guoliang  CHENG Shihua  and CAO Liyong
Abstract:Inheritance of seedling cold tolerance was examined in three crosses between tolerant and sensitive parents by growing seedlings in the phytotrom after keeping them at 6℃ for 48 hours. Cold tolerance was measured by leaf yellowing after the treatment of low temperature then recovery at 30℃/25℃ for 24 hours and by plant dying recovery for 48 hours are both govered by a single dominant gene. A single dominant gene also controls the cold tolerance as measured by specific conductivity, which was shown higher in sensitive parent than in tolerant one.
Keywords:Early indica rice variety  Cold tolerance  Seedling stage  Inheritance
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