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Uptake of Rubidium by Plants from Cation‐Exchange Resin Suspensions and Their Equilibrium Solutions
Author(s) -
Werkhoven C. H. E.,
Ohlrogge A. J.
Publication year - 1963
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1963.03615995002700050017x
Subject(s) - rubidium , absorption (acoustics) , ion exchange , chemistry , ion exchange resin , colloid , phase (matter) , porous medium , ion , porosity , analytical chemistry (journal) , chromatography , materials science , inorganic chemistry , potassium , organic chemistry , composite material
Two laboratory experiments were performed to evaluate absorption of Rb 86 ‐labeled rubidium by rye and corn from suspensions of a cation‐exchange resin and their equilibrium solutions as affected by a small distance, defined by high‐porosity filters, separating the roots from the exchanger. With one exception, the absorption from the suspensions was from 3% to more than 100% higher than that from the solutions, depending on the length of the absorption period, the presence or absence of a filter, and the rubidium concentration. The data are in agreement with those of other workers, who demonstrated the existence of two‐phase effects on ion absorption; the increased uptake from the suspensions is possibly due to a replenishment effect which is effective over a distance of at least 150µ from the colloids.