| 不同施氮水平下盐胁迫对灵武长枣苗木光合特性的影响 |
| |
| 引用本文： | 王晶,曹兵,张光弟.不同施氮水平下盐胁迫对灵武长枣苗木光合特性的影响[J].北方园艺,2009(1). |
| |
| 作者姓名： | 王晶 曹兵 张光弟 |
| |
| 作者单位： | 宁夏大学农学院,宁夏银川,750021 |
| |
| 基金项目： | 宁夏自然科学基金，上海市西部发展资助项目 |
| |
| 摘 要： | 采用盆栽试验,研究了盐胁迫(50、150、200 mmol/L)下不同浓度氮(100、200、300mg/kg)对灵武长枣苗木植株叶片叶绿素含量、胞间二氧化碳浓度、蒸腾速率、净光合速率、水分利用效率的影响.结果表明:盐胁迫显著降低了灵武长枣苗木的叶绿素含量、净光合速率、水分利用效率,提高了胞间二氧化碳浓度、蒸腾速率,氖素浓度为200 mg/kg时,提高了叶绿素含量、净光合速率、水分利用效率,缓和了胞间二氧化碳浓度、蒸腾速率的增大趋势.氮素可以在一定程度上增强盐胁迫下灵武长枣苗木的光合能力.
|
| 关 键 词： | 盐胁迫 氮素营养 灵武长枣 光合特性 |
Effects of Salt Stressed on Photosynthesis of Lingwu LongJujube Seedlings under Different Nitrogen Supplying |
| |
| WANG Jing,CAO Bing,ZHANG Guang-di.Effects of Salt Stressed on Photosynthesis of Lingwu LongJujube Seedlings under Different Nitrogen Supplying[J].Northern Horticulture,2009(1). |
| |
| Authors: | WANG Jing CAO Bing ZHANG Guang-di |
| |
| Institution: | School of Agriculture;Ningxia University;Yinchuan;Ningxia 750021;China |
| |
| Abstract: | With pot cultivation,studied the effects of different salt resistance(50,150,200 mmol/L) on the Lingwu long jujube's leaf chlorophyll content,intercellular CO2 concentration(Ci),transpiration rate(Tr),net photosynthesis(Pn),and water utilize efficiency(WUE) under different nitrogen application system(100,200 and 300 mg/kg).The result showed that salt stress decreased the leaf chlorophyll content,net photosynthesis(Pn) and water utilize efficiency(WUE) of lingwu long jujube significantly,and enhanced interce... |
| |
| Keywords: | Salt stressed Nitrogen nutrition Lingwu long jujube Photosynthetic characteristic |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
