| Cd对不同种类植物生长和养分积累的影响 |
| |
| 引用本文： | 杨明杰,林咸永.Cd对不同种类植物生长和养分积累的影响[J].应用生态学报,1998,9(1):89-94. |
| |
| 作者姓名： | 杨明杰 林咸永 |
| |
| 作者单位： | 浙江农业大学环境资源学院!杭州，310029，浙江农业大学环境资源学院!杭州，310029，浙江农业大学环境资源学院!杭州，310029 |
| |
| 摘 要： | 溶液培养法研究了不同活度Cd2 对4种植物卷心菜、黑麦草、玉米和白三叶草生长和养分积累的影响．结果表明，随Cd2 活度增加，4种植物的生长速率和干物质产量均下降．白三叶草对Cd2 最敏感；黑麦草和玉米耐性较强；卷心菜在高ACd2 时敏感．Cd2 对Fe、Mn、Cu、Zn、Ca、Mg、P、S等养分积累的影响因植物种类而异．Cd2 降低Fe、Mn、Cu、Zn、Ca、Mg等的积累．P在4种植物中和S在除卷心菜外的3种植物中的积累比对照增加．卷心菜和白三叶草对Cd毒敏感性差异与Fe、Mn、Ca、Mg的积累受Cd2 影响程度不同密切相关．
|
| 关 键 词： | Cd~(2 ) 生长 养分积累 |
Impact or Cd on growth and nutrient accumulation or different plant species |
| |
| Yang Mingjie,Lin Xianyong and Yang Xiaoe.Impact or Cd on growth and nutrient accumulation or different plant species[J].Chinese Journal of Applied Ecology,1998,9(1):89-94. |
| |
| Authors: | Yang Mingjie Lin Xianyong and Yang Xiaoe |
| |
| Abstract: | A solution culture with cabbage, ryegrass, maize and white clover showed that their growthrate and dry matter yield decreased with increasing Cd2 activity. The tolerance towards Cd2 changed in folowing sequence: cabbage > ryegrass > maize > white clover. For the plant speciestested, Cd2 decreased their accumulation of Fe, Mn, Cu. Zn, Ca and Mg, but increased P accurnulatbo. All species except cabbage had an increased S accumulation. The difference of cabbage and white clover in sensitivity to Cd toxicity was strongly related to their different accumulation of Fe, Mn, Ca and Mg under the impact of Cd2 . |
| |
| Keywords: | Cd~(2 ) Growth Nutrient accumulation |
| 本文献已被 CNKI 维普 等数据库收录！ |
