00498naa a2200133 a 450000100080000000500110000800800410001910000180006024501720007826000090025070000170025970000140027677300740029018292202010-01-10       1978    bl ---       0--  u    #d1 aTAKAMATSU, S.  aCytological studies of early stages of powdery mildew in barley and wheat. V. Effects of calcium on the infection of coleoptiles of barley by Erysiphe graminis hordei.  c19781 aISHIZAKI, H.1 aKUNOH, H.  tCanadian Journal of Botany, Ottawagv. 56, n. 20, p. 2544-2549, 1978.