Simple, Robust Method for Quantifying Silicon in Plant Tissue

Autor: Gary A. Breitenbeck, Joseph E. Kraska
Rok vydání: 2010
Předmět:
Zdroj: Communications in Soil Science and Plant Analysis. 41:2075-2085
ISSN: 1532-2416
0010-3624
DOI: 10.1080/00103624.2010.498537
Popis: Low silicon (Si) content in rice, sugarcane and other Si-accumulating crops can adversely affect crop performance because it creates reduced tolerance to both abiotic and biotic stresses. Assessing the Si status of a crop typically depends upon accurately measuring Si accumulation in plant tissue. Methods involving wet digestion of plant tissue followed by colorimetric determination of Si have proven attractive because they are both rapid and do not require costly, specialized instrumentation. Some popular wet-digestion methods are reported to provide highly variable and inconsistent results. A systematic study to identify and address the sources of variability associated with wet digestion for Si analysis found that modifications that reduce excessive foaming during wet digestion of plant tissue in strong alkali and peroxide significantly reduce variability. Unstable and variable color development associated with the molybdenum blue reaction is a concern in the colorimetric determination of Si in digests...
Databáze: OpenAIRE