The difference of cation uptake of soybean [Glycine max] root
1998
Hanayama, S. (Yamagata univ., Tsuruoka (Japan). Faculty of Agriculture) | Kasubuchi, T. | Nakano, M.
The interactions of ions in salinity soil solution are factors determining ion uptake by roots. To clarify the relationship between these parameters, differences in uptake due to root washing in solutions of Na+, K+, Ca2+ and Mg2+, were studied by the method reported previously. The transpiration stream concentration factor was found to be unity in all case. Exudation differed according to the cations, and decreased in CaCl2. The opposite was noted in all other cases. These findings were shown in relation to K+ concentration in roots. The each cation would thus appear to be a determinant of uptake
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