| 小麦温敏不育系YM3314的温敏特性及育性转换 |
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| 引用本文： | 李红燕,何蓓如,胡银岗,马翎健,宋喜悦,李宏斌.小麦温敏不育系YM3314的温敏特性及育性转换[J].西北植物学报,2009,29(5). |
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| 作者姓名： | 李红燕 何蓓如 胡银岗 马翎健 宋喜悦 李宏斌 |
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| 作者单位： | 1. 西北农林科技大学,农学院,陕西杨陵,712100;济宁学院生物系,山东曲阜,273100
2. 西北农林科技大学,农学院,陕西杨陵,712100 |
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| 基金项目： | 国家科技支撑计划，陕西省科技攻关计划 |
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| 摘 要： | 以YM型小麦温敏雄性不育系YM3314为材料,通过分期播种和剪穗再生分蘖的育性试验分析各播期材料的育性与对应发育时期的气象因子相关性,以揭示YM型小麦温敏雄性不育系的温敏特性及其育性转换温度条件.结果表明:YM3314秋播完全不育或育性有稍微波动,春播稳定部分可育;各播期材料的育性与孕穗期和抽穗期日平均温度呈极显著正相关,而与孕穗期的平均相对湿度呈显著负相关;孕穗前5日至抽穗后5日是YM3314育性转换的关键时期,该段时期日平均气温达到18.18℃以上表现部分可育,低于18℃表现不育.研究证实,YM3314具有温度敏感特性,育性转换的敏感时期在孕穗前5日至抽穗后5日,育性转换的临界温度约18℃左右,在二系杂交小麦研究中有重要的利用价值.
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| 关 键 词： | 莫迦小麦 温敏雄性不育系 温度敏感 育性转换 |
Thermo-sensitivity and Fertility Transition of Thermo-sensitive Male-sterile Line YM3314 of Wheat |
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| LI Hong-yan,HE Bei-ru,HU Yin-gang,MA Ling-jian,SONG Xi-yue,LI Hong-bin.Thermo-sensitivity and Fertility Transition of Thermo-sensitive Male-sterile Line YM3314 of Wheat[J].Acta Botanica Boreali-Occidentalia Sinica,2009,29(5). |
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| Authors: | LI Hong-yan HE Bei-ru HU Yin-gang MA Ling-jian SONG Xi-yue LI Hong-bin |
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| Institution: | 1 College of Agronomy;Northwest A&F University;Yangling;Shaanxi 712100;China;2 Department of Biology;College of Jining;Qufu;Shandong 273100;China |
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| Abstract: | To realize thermo-sensitivity speciality and temperature condition of fertility transition,the fertility of YM3314 was investigated by the experiments of sowing in different dates and spikes of ratooning tillers in Yangling,Shaanxi.Related analysis was carried between selfed seedset rate and climate elements from booting to abloom time.The result was showed:YM3314 was highly or completely sterile as sowing in autumn and fertility was restored stably as sowing in spring;The correlation between the fertility ... |
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| Keywords: | T macha var subletshchumicum thermo-sensitive male-sterile line thermo-sensitivity fertility transition |
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