期刊论文

Cadmium Stress：Effects on Growth and Cadmium Absorption of Chamaecrista rotundifolia Seedlings

中文

中国农学通报

1000-6850

2018

34

3

93-97

国家科技支撑计划项目“矿区重金属污染土壤生态修复技术及示范”（2012BAC09B04）；

本校为第一机构

为探明圆叶决明的耐镉性,笔者采用营养液培养试验的方法,研究了不同浓度镉胁迫对圆叶决明‘CIP86134’和‘ATF3248’幼苗生长发育、矿质养分吸收、Cd的吸收累积及其分布的影响.结果表明:镉胁迫抑制圆叶决明幼苗的生长,株高和出叶速度均低于对照;降低了圆叶决明生物产量和减少Ca、Mg、Cu、Zn的吸收.‘CIP86134’和‘ATF3248’对Cd的忍耐浓度分别为33.4 mg/kg和33.1 mg/kg,为非耐镉性植物.通过形态诊断、生物产量、Cd的吸收累积量等指标的比较,‘CIP86134’的耐镉能力较‘ATF3248’强.对于Cd污染土壤的生态修复来说,‘CIP86134’是更为适宜的品种.

The paper aims to explore the cadmium-tolerance of Chamaecrista rotundifolia.The authors studied the effects of Cd stress on the growth and development,mineral nutrient uptake,Cd accumulation and distribution of C.rotundufolia seedlings of different varieties（CIP86134 and ATF3248） by using nutrient solution culture experiment.The results showed that： Cd stress inhibited the growth of C.rotundufolia seedling,and the plant height and leaf emergence rate were lower than that of CK,and decreased the biomass accumulation of C.rotundifolia and the...