| 张俊花,黄伟,张立峰,张凤路.冀西北坝上地区水分处理对地膜覆盖萝卜光合特性的影响[J].干旱地区农业研究,2008,(5):60~64 |
| 冀西北坝上地区水分处理对地膜覆盖萝卜光合特性的影响 |
| Effects of water treatment on photosynthetic characteristic of radish under plastic film mulching culture in Bashang Region in the Northwest of Hebei Province |
| |
| DOI：10.7606/j.issn.1000-7601.2008.05.13 |
| 中文关键词: 坝上地区 萝卜 地膜覆盖 水分 光合特性 |
| 英文关键词:Bashang Region radish plastic film mulching water photosynthetic characteristic |
| 基金项目:河北省“十一五”科学技术研究与发展计划项目（06220901D） |
|
| 摘要点击次数: 369 |
| 全文下载次数: 290 |
| 中文摘要: |
| 冀西北坝上旱滩地田试水分处理对地膜覆盖下萝卜光合特性的影响。结果表明，地膜覆盖处理与对照相比，浇相同量的水，会降低功能叶片中叶绿素的含量；播种后40 d，覆膜处理的萝卜功能叶片光合速率较对照高，增长幅度也大，且各处理均在播种后40 d达到了最大光合速率。水分处理后，萝卜功能叶片的光合速率和蒸腾速率的日变化均表现为低—→高—→低的趋势，而水分利用效率日变化则表现为高—→低—→高的趋势；地膜覆盖处理与对照相比，在浇水量相同的情况下，其光合速率没有增加，但蒸腾速率在14∶00前却增加明显。 |
| 英文摘要: |
| The effects of water treatment on photosynthetic characteristic of radish under plastic film mulch were studied. The results showed that Chl content of treatment was less than that of the contrast under the same water treatment. After 40d of seeded, photosynthetic rate of treatment excelled the contrast, and photosynthetic rate of all treatments reached the peak. After water irrigated, photosynthetic rate and transpiration rate of radish had the same trend, but water use efficiency was reverse; photosynthetic rate of treatment did not increase, but transpiration rate increased remarkablely before 14∶00 under the same water treatment. |
| 查看全文 查看/发表评论 下载PDF阅读器 |