| 低温驯化及封冻阶段不同冬小麦品种叶绿素荧光参数的比较 |
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| 引用本文： | 王晓楠,付连双,李卓夫,杨方,孙艳丽,刘灿,王金伟,陈禹兴.低温驯化及封冻阶段不同冬小麦品种叶绿素荧光参数的比较[J].麦类作物学报,2009,29(1). |
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| 作者姓名： | 王晓楠 付连双 李卓夫 杨方 孙艳丽 刘灿 王金伟 陈禹兴 |
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| 作者单位： | 1. 东北农业大学农学院,黑龙江哈尔滨,150030
2. 东北农业大学工程学院,黑龙江哈尔滨,150030 |
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| 基金项目： | 东北农业大学创新团队项目 |
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| 摘 要： | 为了解小麦品种的抗寒机制,对抗寒品种东农冬麦1号和对照品种济麦22在低温驯化及封冻阶段植株的叶绿素荧光参数进行测定和分析.结果表明,低温驯化阶段对照品种济麦22新叶的最大荧光产量(Fm)、PSⅡ最大量子产量(Fv/Fm)、实际量子产量(yield)、光化学淬灭(qP)显著高于东农冬麦1号,低温驯化结束后济麦22的这些参数迅速降低,显著低于东农冬麦1号新叶相应的值;调查期内东农冬麦1号新叶的初始荧光(Fo)变化稳定,降幅为26.2%,济麦22新叶Fo的降幅为52.8%;两品种老叶的荧光参数值变化趋势接近一致,低温驯化结束后东农冬麦1号老叶的Fm、qN、qP值显著高于济麦22老叶相应的值.在生产上可以利用叶绿素荧光参数对品种抗寒性进行鉴定,鉴定时期为低温驯化期结束、封冻期开始时,鉴定的部位应为植株新叶.
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| 关 键 词： | 冬小麦 低温驯化 封冻阶段 叶绿素荧光 耐寒性 |
Comparison of Chlorophyll Fluorescence Parameters between two Winter Wheat Cultivars during Cold Acclimation and Frozen Period |
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| WANG Xiao-nan,FU Lian-shuang,LI Zhuo-fu,YANG Fang,SUN Yan-li,LIU Can,WANG Jin-wei,CHEN Yu-xing.Comparison of Chlorophyll Fluorescence Parameters between two Winter Wheat Cultivars during Cold Acclimation and Frozen Period[J].Journal of Triticeae Crops,2009,29(1). |
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| Authors: | WANG Xiao-nan FU Lian-shuang LI Zhuo-fu YANG Fang SUN Yan-li LIU Can WANG Jin-wei CHEN Yu-xing |
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| Institution: | 1.Agronomy College;Northeast Agricultural University;Harbin;Heinongjiang 150030;China;2.Engineering College;China |
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| Abstract: | The chlorophyll fluorescence parameters of cold-resistant cultivar,Dongnongdongmai 1,and CK,Jimai 22,were measured during cold acclimation and frozen periods.The results showed that maximum fluorescence yield(Fm),maximum quantum yield of PS II(Fv/Fm),actual quantum yield(yield),photochemical quenching(qP)in new leaf of CK Jimai 22 was significantly higher than that of Dongnongdongmai 1 in the cold acclimation periods.After the low temperature acclimation,these parameters of Jimai 22 declined rapidly,and wer... |
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| Keywords: | Winter wheat Cold acclimation Frozen periods Chlorophyll fluorescence Cold tolerance |
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