Answers are grounded in this paper and cite their sources.
Sodium absorption by intact sugar beet plants (Beta vulgaris) was found to be mediated by at least two distinct mechanisms when uptake was studied over a wide range of Na and K concentrations. The first mechanism operates at low Na concentrations (<1 milliequivalent per liter); presence of K completely blocks this mechanism for Na. The second mechanism operates at high Na concentrations (>1 milliequivalent per liter), transporting Na as well as K; but apparently this mechanism is not active for Na absorption in young sugar beet plants up to the 10-leaf stage.
No takes yet. Share an insight, caveat, or question.
El‐Sheikh et al. (1971) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: