| 罗 钊，宋喜悦，何蓓如，李宏斌，胡银岗，马翎健，肖海峰.YM型小麦雄性不育系KTM3314A的温敏特性[J].麦类作物学报,2010,30(4):612 |
| YM型小麦雄性不育系KTM3314A的温敏特性 |
| Thermo sensitive Properties of Wheat YM type Male Sterile Wheat Line KTM3314A |
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| DOI：10.7606/j.issn.1009-1041.2010.04.005 |
| 中文关键词: 小麦 温敏特性 温敏期 临界温度 |
| 英文关键词:Wheat Thermo sensitive property Thermo sensitive period Threshold temperature |
| 基金项目:西北农林科技大学基本科研业务基金资助项目（QN2009001）；唐仲英育种基金项目（A212020914）。 |
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| 中文摘要: |
| 为了明确YM型小麦温敏不育系KTM3314A的育性转换特性，以1B/1R类型K型小麦雄性不育系K3314A 和YM型小麦雄性不育系KTM3314A为试验材料，进行分期播种（秋播、春播）和剪穂再生试验，以K3314A为对照，比较不同播期及再生分蘖穗的自交结实率，并与同期的温度、湿度等气象数据对照，以确定KTM3314A的温度敏感期和临界温度。结果表明，K3314A秋播、春播及再生分蘖穗皆完全雄性不育， KTM3314A秋播完全雄性不育，春播及再生分蘖穗育性部分恢复，育性转换的温度敏感期在孕穗前后5 d，临界温度为18.14 ℃，表明KTM3314A具有温度敏感特性。 |
| 英文摘要: |
| The wheat CMS lines with Ae.kotschyi cytoplasm, 1B/1R type K3314A, YM type male sterile line KTM3314A, were sowed in autumn and spring，the regenerated tillers from the individuals sowed at autumn as well. We observed and compared self seed setting rate of two types of male sterile lines at diferrent developmental stages under the various photo thermo condition. The results showed that KTM3314A was completely male sterile while sowed in autumn, but was partially fertile while sowed in appropriate spring and regeneratied tillers. Thermo sensitive period of fertility transition of KTM3314A was 5 days before and after the booting. The threshold temperature was 18.14℃. However, K3314A was completely male sterile sowed in any time, which showed that YM type sterile wheat line KTM3314A had some thermo sensitive properties. |
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