Calcium, Magnesium, Potassium, and Sodium in Honey and in Nectar Secretion

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Abstract
There was generally more K in honey than Ca, Mg, or Na, due to the rapidity of K secretion by the plant. The most significant cationic relationship in honey was between K and Mg (P<0·001); the latter may be either acting as a co-factor in K secretion or passively moving with K and water in response to the active secretion of sugars. Calcium, on the other hand, appeared unaffected by any of the other ions in the process, probably because of its relative immobility in the plant. Nectarsecreting mechanisms are probably distinct from those of cationic absorption in plants.