Cd对不同种类植物生长和养分积累的影响

应用生态学报 ›› 1998, Vol. 9 ›› Issue (1): 89-94.

Cd对不同种类植物生长和养分积累的影响

杨明杰, 林咸永, 杨肖娥

浙江农业大学环境资源学院, 杭州 310029

收稿日期:1996-08-06 修回日期:1997-01-02 出版日期:1998-01-25 发布日期:1998-01-25
基金资助:
国家教委回国人员基金资助项目

Impact or Cd on growth and nutrient accumulation or different plant species

Yang Mingjie, Lin Xianyong, Yang Xiaoe

Zhejiang Agricultural University, Hangzhou 310029

Received:1996-08-06 Revised:1997-01-02 Online:1998-01-25 Published:1998-01-25

摘要/Abstract

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

Abstract: Asolution 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 Paccurnulatbo. All species except cabbage had an increased Saccumulation. 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⁺.

Key words: Cd²⁺, Growth, Nutrient accumulation

杨明杰, 林咸永, 杨肖娥. 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.

Yang Mingjie, Lin Xianyong, 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.

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