Copies of author's previously published articles inserted. / Bibliography: leaves 93-107. / viii, 108, 69 leaves : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Provides evidence for a specific, regulated, high affinity mechanism for entry of calcium and other divalent cations into the roots of wheat. / Thesis (Ph.D.)--University of Adelaide, Dept. of Botany, 1996?