Effects of Chelation and of Certain Cations on the Mobility of Foliar-Applied 45ca in Stock, Broad Bean, Peas, and Subterranean Clover

A series of water-culture experiments was conducted with broad bean (Vicia faba L.), common stock (Mathiola incana R. Br.), subterranean clover (Trifolium Bubterraneum L.), and garden peas (PiBum Bativum L.) grown in normal-and low-calcium nutrient solutions. Leaves of the plants were either injected or s,,!rface-treated with an aqueous solution of 45CaCh with and without various additions to the dose. The subsequent distribution of 45Ca in the plants was determined by means of radioautographs and radioassays.