Difference of Cadmium Bioaccumulation and Transportation in Two Ryegrass Varieties and the Correlation between Plant Cadmium Concentration and Soil Cadmium Chemical Forms
| Autor: | Zhangmi He, Weihong Xu, Mei Yang, Yanhua Li, Tao Li, Yu-Li Qin, Chaoran Huang, Deyu Feng |
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| Rok vydání: | 2019 |
| Předmět: |
inorganic chemicals
Pollution Computer science media_common.quotation_subject Sodium chemistry.chemical_element Bioconcentration 02 engineering and technology Acetic acid chemistry.chemical_compound Cadmium transport Dry weight 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering media_common Cadmium Rhizosphere Soil cadmium fungi food and beverages 020206 networking & telecommunications Computer Science Applications Phytoremediation Horticulture chemistry Bioaccumulation Soil water Shoot 020201 artificial intelligence & image processing |
| Zdroj: | Wireless Personal Communications. 110:291-307 |
| ISSN: | 1572-834X 0929-6212 |
| Popis: | Pot experiments were conducted to study the effects of different cadmium (Cd) levels (0, 75, 150, 300 and 600 mg kg−1) on the growth, cadmium concentration and cadmium accumulation of two varieties of ryegrass, and the correlation between plant cadmium concentration and soil cadmium chemical forms. The results showed that root dry weight of the two varieties of ryegrass, dry weight of shoot and plant in Aubade increased first and then decreased with the increase of soil cadmium. When the soil cadmium level was 75 mg kg−1, shoot dry weight and plant dry weight in Aubade reached the maximum (10.92 g pot−1 and 12.03 g pot−1), which was 11.13% and 10.67% higher than that of the control respectively. The cadmium form in shoot of the two ryegrass varieties was dominated by was sodium chloride extraction (F-NaCl), followed by deionized water extracted (F-W) and acetic acid extracted (F-HAC). The cadmium forms in soils were mainly exchangeable (EXC-Cd), and cadmium concentrations of leaf, stem and root were significantly positively correlated with exchangeable cadmium content in the rhizosphere soil (P |
| Databáze: | OpenAIRE |
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