| 植物生长调节剂对国槐蒸腾耗水的影响 |
| |
| 引用本文： | 何茜,李吉跃,齐涛. 植物生长调节剂对国槐蒸腾耗水的影响[J]. 北京林业大学学报, 2007, 29(1): 74-78 |
| |
| 作者姓名： | 何茜 李吉跃 齐涛 |
| |
| 作者单位： | 北京林业大学资源与环境学院,省部共建森林培育与保护教育部重点实验室;四川省林业厅种苗站 |
| |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| |
| 摘 要： | 采用BP3400精密天平等仪器对喷施不同浓度（10、20、40 mg/L）“施丰乐”溶液（对照喷施清水）的当年生国槐的实际蒸腾耗水状况进行研究，用压力室法分阶段测定了苗木的叶水势. 结果表明:供试国槐属于低水势忍耐脱水耐旱树种，其叶水势与土壤含水量关系的方程为y = 0.018 2 x2-1.071 3 x+ 16.52（R2= 0.998 7）. 在相同水分条件下，对照苗木的耗水速率比处理过的高10.2%～82.7%. 随着干旱胁迫的发生，对照苗木的叶水势急剧下降，而处理的苗木则维持着较高的叶水势. 从而得出植物生长调节剂“施丰乐”的喷施对减少苗木耗水，延缓苗木干旱起着重要的作用.
|
| 关 键 词： | " 施丰乐" 国槐 水势 耗水量 耗水速率 |
| 文章编号： | 1000-1522（2007）01-0074-05 |
| 收稿时间： | 1900-01-01 |
| 修稿时间： | 2005-09-12 |
Influence of plant growth regulator on transpiring water consumption of Sophora japonica L |
| |
| HE Qian,LI Ji-yue,QI Tao. Influence of plant growth regulator on transpiring water consumption of Sophora japonica L[J]. Journal of Beijing Forestry University, 2007, 29(1): 74-78 |
| |
| Authors: | HE Qian LI Ji-yue QI Tao |
| |
| Affiliation: | 1 Key Laboratory for Silviculture and Conservation， Ministry of Education, College of Natural Resources &; Environment, Beijing Forestry University, 100083, P.R.China; 2 Seed and Seedling Station, Department of Forestry, Sichuan Province, Chengdu, 610081, P.R.China; |
| |
| Abstract: | Factual water consumption status of Sophora japonica L.sprayed with different concentrations of plant growth regulator Shifengle" solution including 10,20 and 40 mg/L(water is control) was studied by using BP3400 Precision Balance etc.Leaf water potential was measured using pressure chamber in different phases.It was indicated that S.japonica L.was low_water_potential,dehydration_resisted,drought_resisted species,and the equation of the relation between water potential and soil moisture content was y = 0.018 2 x~2-1.071 3 x 16.52(R~2= 0.998 7).Under the same moisture content conditions,water consumption rate of control was 10.2%(--)82.7% higher than that sprayed by "Shifengle".With the drought stress increasing,water potential of control sharply diminished,but the treated remained high water potential. |
| |
| Keywords: | " Shifengle" ,Sophora japonica L.,water potential,water consumption,water consumption rate |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《北京林业大学学报》浏览原始摘要信息 |
|
点击此处可从《北京林业大学学报》下载全文 |
|
