| Zn胁迫对黑麦草幼苗生长、生理生化及Zn吸收的影响 |
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| 引用本文： | 李文一,徐卫红,胡小凤,李仰锐,刘吉振,王宏信,熊治廷.Zn胁迫对黑麦草幼苗生长、生理生化及Zn吸收的影响[J].农业工程学报,2007,23(5):190-194. |
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| 作者姓名： | 李文一 徐卫红 胡小凤 李仰锐 刘吉振 王宏信 熊治廷 |
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| 作者单位： | 西南大学资源环境学院,重庆,400716;武汉大学资源环境学院,武汉,430059 |
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| 摘 要： | 采用营养液培养法，研究了不同Zn浓度(0，0.25，0.50，1.00，2.00 mmol/L)对黑麦草幼苗生长、过氧化物酶活性、脯氨酸、根系活力及Zn吸收的影响。结果表明，低锌胁迫对黑麦草幼苗生长无抑制，过度锌胁迫(Zn≥2 mmol/L)将降低黑麦草地上部干质量。幼苗叶内游离脯氨酸含量随锌胁迫时间、锌浓度增加而增加。随Zn胁迫时间增加幼苗POD活性先降后升、根系活力先升后降，锌处理的植株地上部POD活性随锌浓度增加先降低，然后增加，而根系活力随锌浓度增加而增加。黑麦草幼苗地上部和根系Zn含量随Zn浓度的增加而增加，当Zn浓度为2.00 mmol/L时，地上部Zn含量最大值为775.0 mg/kg。
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| 关 键 词： | 锌胁迫 黑麦草 游离脯氨酸 POD活性 根系活力 锌吸收 |
| 文章编号： | 1002-6819（2007）5-0190-05 |
| 收稿时间： | 2006/9/12 0:00:00 |
| 修稿时间： | 2006-09-122007-01-26 |
Effects of Zinc stress on growth, physiological and biochemical and Zn uptake of Ryegrass(Lolium perenne L.) |
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| Li Wenyi,Xu Weihong,Hu Xiaofeng,Li Yangrui,Li Jizhen,Wang Hongxin and Xiong Zhiting.Effects of Zinc stress on growth, physiological and biochemical and Zn uptake of Ryegrass(Lolium perenne L.)[J].Transactions of the Chinese Society of Agricultural Engineering,2007,23(5):190-194. |
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| Authors: | Li Wenyi Xu Weihong Hu Xiaofeng Li Yangrui Li Jizhen Wang Hongxin and Xiong Zhiting |
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| Institution: | College of Resources and Environmental Sciences, Southwest University, Chongqing 400716, China;College of Resources and Environmental Sciences, Southwest University, Chongqing 400716, China;College of Resources and Environmental Sciences, Southwest University, Chongqing 400716, China;College of Resources and Environmental Sciences, Southwest University, Chongqing 400716, China;College of Resources and Environmental Sciences, Southwest University, Chongqing 400716, China;College of Resources and Environmental Sciences, Southwest University, Chongqing 400716, China;College of Resources and Environmental Sciences, Wuhan University, Wuhan 430072, China |
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| Abstract: | |
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| Keywords: | Zinc stress ryegrass(Lolium perenne L ) free proline POD root system vigor Zn uptake |
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