Trace metal bioavailability to plants as assessed by in situ measurement and a biotest: application to durum wheat cultivated in copper-contaminated vineyard soils
This work aimed to assess the bioavailability of trace elements based on in situ measurements and on a biological assay (biotest) carried out under controlled conditions. This scheme was applied to durum wheat (Triticum turgidum durum L.) cultivated in copper (Cu) contaminated, former vineyard soils. Plant Cu content measured in situ and in the biotest followed the same trends according to soil parameters such as total- and EDTA-Cu in soils. Nevertheless, no significant correlation could be found between in situ and biotest measurements, probably because of confounding factors under field conditions. The major interest of the biotest is to enable the assessment of Cu bioavailability when expressed as a flux of Cu uptake into the plant.
Bioavailability biotest copper durum wheat flux in situ measurement
M. Bravin A. Michaud M. Galleguillos C. Chappelaz B. Larabi P. Hinsinger
INRA-AgroM, UMR Biogeocbimie du Sol et de la Rbizosphere, 2 place Pierre Viala, 34060 Montpellier, France
国际会议
第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)
北京
英文
954-955
2007-07-15（万方平台首次上网日期，不代表论文的发表时间）