| 水分胁迫对4种牧草苗期的抗旱性比较 |
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| 引用本文： | 王怡丹,全炳武,朴京珠,朴美英.水分胁迫对4种牧草苗期的抗旱性比较[J].延边大学农学学报,2007,29(2):101-106. |
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| 作者姓名： | 王怡丹 全炳武 朴京珠 朴美英 |
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| 作者单位： | 1. 延边大学农学院
2. 龙井市农业技术推广总站,吉林,龙井,133400 |
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| 基金项目： | 延边自治州州校合作项目 |
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| 摘 要： | 采用盆栽法对不同水分胁迫下4种牧草幼苗期的形态及生理特性进行了初步研究.结果表明,4种牧草幼苗的株高、茎粗、质膜透性、叶绿素含量均随着水分胁迫的加重呈下降趋势;而根冠比、叶片水分饱和亏缺、游离脯氨酸均呈上升趋势.综合评价4种牧草苗期抗旱性强弱的顺序为:蒙古冰草>扁穗冰草>沙生冰草>羊草.
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| 关 键 词： | 牧草 水分胁迫 苗期 抗旱性 |
| 文章编号： | 1004-7999（2007）02-0101-06 |
| 修稿时间： | 2007-02-25 |
Comparison about drought resistance of 4 forages at seedling stage under water stress |
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| WANG Yi-dan,QUAN Bing-wu,PIAO Jing-zhu,PIAO Mei-ying.Comparison about drought resistance of 4 forages at seedling stage under water stress[J].Journal of Agricultural Science Yanbian University,2007,29(2):101-106. |
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| Authors: | WANG Yi-dan QUAN Bing-wu PIAO Jing-zhu PIAO Mei-ying |
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| Abstract: | The potted experiment was carried out to deal with the morphological characters and physiological characteristics of 4 perennial forages seedling under different water stress conditions.The results showed that the plant height,stem wide,the plasma membrace permeability and chlorophyll decreased with the aggravated of water stress;however,the R/S,WSD and proline content increased with aggravated of water stress.And the sequence of drought resistance during seedling was: Agropyron cristatum > Agropyron mongolioum keng > Agropyron desertorum > Leymus chimemsis. |
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| Keywords: | forage water stress seedling drought resistance |
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