Evaluation of a novel test design to determine uptake of chemicals by plant roots
| Autor: | Robin Sur, Carola A. Schriever, Sarah Webb, Marco U. Reitz, Birgit Zillgens, Marc Lamshoeft, Paul Sweeney, Herbert Resseler, Zhenglei Gao |
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| Rok vydání: | 2018 |
| Předmět: |
Environmental Engineering
010504 meteorology & atmospheric sciences Biomass 010501 environmental sciences Plant Roots 01 natural sciences Crop Hydroponics Solanum lycopersicum Botany Environmental Chemistry Concentration factor Waste Management and Disposal Triticum Solanum tuberosum 0105 earth and related environmental sciences Carbon Isotopes Plant roots Chemistry food and beverages Classification tree analysis Biological Transport Plant Transpiration Replicate Triazoles Pollution Horticulture Shoot Transpiration stream Plant Shoots |
| Zdroj: | Science of The Total Environment. :10-19 |
| ISSN: | 0048-9697 |
| DOI: | 10.1016/j.scitotenv.2017.08.314 |
| Popis: | A new hydroponic study design to determine uptake of chemicals by plant roots was tested by (i) investigating uptake of [14C]-1,2,4-triazole by wheat plants in a ring test with ten laboratory organizations and (ii) studying uptake of ten other radiolabelled chemicals by potato, tomato or wheat plants in two laboratories. Replicate data from the ring test were used to calculate plant uptake factor (PUF) values (uptake into roots and shoots) and transpiration stream concentration factor (TSCF) values (uptake into shoots). Average PUF for 1,2,4-triazole was 0.73 (n=39, 95% confidence interval (CI): 0.64, 0.82) and the corresponding TSCF value was 1.03 (n=49, 95% CI: 0.76, 1.3). Boxplots and subsequent classification tree analysis of PUF and TSCF values showed that potential outlier values were >1.38 and were observed for PUF replicates with low biomass increase (ratio of final to initial biomass ≤1.739) and small initial biomass (≤1.55g) and for TSCF replicates with an increase in biomass of |
| Databáze: | OpenAIRE |
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