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Absorption of calcium by roots of bean (calcicole) and yellow lupin (calcifuge)

, : Absorption of calcium by roots of bean (calcicole) and yellow lupin (calcifuge). Physiologie Vegetale 11(1): 95-119

Uptake of Ca by excised roots of (a) a calcifuge species (Lupinus luteus) and (b) a calcicole species (Vicia faba var. minor) was a passive process and slower in (a) than in (b). The uptake increased with increasing Ca concentrations up to 0.2 meq/l, and above 50 meq/l the uptake was greater at high than at low pH and the difference was greater in (a) than in (b). The presence of Ca decreased passive uptake of K, and at low K concentrations the Ca/K interaction was non-competative.


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