A growth chamber study of the effect of soil concentration and plant age on the uptake of Sr and Cs by tumbleweed

Autor:	D. A. Cataldo, R. C. Routson
Rok vydání:	1978
Předmět:	Radionuclide Strontium food and beverages Soil Science chemistry.chemical_element Tumbleweed Soil concentration Animal science chemistry Caesium Shoot Orders of magnitude (speed) Dry matter Agronomy and Crop Science Nuclear chemistry
Zdroj:	Communications in Soil Science and Plant Analysis. 9:215-229
ISSN:	1532-2416 0010-3624
DOI:	10.1080/00103627809366802
Popis:	Concentration ratios (CR values) for cesium and strontium were measured in tumbleweed shoots as a function of plant age and radionuclide concentration in a totally mixed soil and radionuclide system. At a given plant age, CR values were found to be independent of soil concentration over five orders of magnitude for Sr and three orders of magnitude for Cs. CR values for Sr in 4‐, 8‐, and 12‐week old plants were 10.8, 9.6, and 19, and for Cs were 0.025, 0.033, and 0.053, respectively. Based on shoot growth and tissue concentration data for Sr and Cs, the CR values appear to be dependent on shoot dry matter production, with the rate of uptake of Sr and Cs remaining relatively constant over the 12‐week period.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e9e3d26feb4a6ffa5a2033b9acce963e https://doi.org/10.1080/00103627809366802 Zobrazit plný text záznamu