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| 干旱胁迫下两种钝叶草的生长和生理响应差异 | |
| 引用本文： | 周海军,顾洪如,沈益新,丁成龙,许能祥.干旱胁迫下两种钝叶草的生长和生理响应差异[J].江苏农业学报,2008,24(6). |
| 作者姓名： | 周海军 顾洪如 沈益新 丁成龙 许能祥 |
| 作者单位： | 1. 江苏省农业科学院畜牧研究所,江苏,南京,210014;南京农业大学动物科技学院,江苏,南京,210095 2. 江苏省农业科学院畜牧研究所,江苏,南京,210014 3. 南京农业大学动物科技学院,江苏,南京,210095 |
| 基金项目： | 国家科技支撑项目(2008BADB3B10) |
| 摘 要： | 采用盆栽法，研究了2个来源不同的钝叶草在干旱胁迫条件下的生长和生理响应差异。结果表明：①持续干旱30d后，两个材料均出现表征死亡现象，但复水3d后仍有部分钝叶草返青；②不同干旱处理显著抑制了钝叶草的生长，但宫崎钝叶草能保持较强的匍匐茎生长势；③持续干旱胁迫下，钝叶草的叶片含水量和叶绿素含量显著下降，但宫崎钝叶草能维持较高且稳定的叶片含水量和叶绿素含量；④轻度干旱和中度干旱处理能提高钝叶草的叶片SOD活性；⑤宫崎钝叶草具有较强的旱后恢复能力，抗旱性强于句容钝叶草。 |
| 关 键 词： | 钝叶草 干旱胁迫 SOD 叶片含水量 叶绿素含量 |
Differences in Growth and Physiological Responses of Two Augustinegrass (Stenotaphrum secundatum) to Drought Stress |
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| ZHOU Hai-jun,GU Hong-ru,SHEN Yi-xin,DING Cheng-long,XU Neng-xiang.Differences in Growth and Physiological Responses of Two Augustinegrass (Stenotaphrum secundatum) to Drought Stress[J].Jiangsu Journal of Agricultural Sciences,2008,24(6). | |
| Authors: | ZHOU Hai-jun GU Hong-ru SHEN Yi-xin DING Cheng-long XU Neng-xiang |
| Abstract: | A greenhouse experiment was designed to investigate the effects of drought stress on augustinegrass(Stenotaphrum secundatum) and to determine the drought tolerance through four water treatments,well-watered(control) slight water deficit(rewatered 400 ml everyday),moderate water deficit(rewatered 250 ml everyday),and severe water deficit(well-rewatered after 30 d of water holding).The leaf water content,whole chlorophyll content,stolon growth rate and single stolon biomass declined remarkably,however,leaf SO... |
| Keywords: | augustinegrass drought stress SOD activity leaf water content chlorophyll concentration |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |