00379naa a2200109 a 450000100080000000500110000800800410001910000190006024501110007926000090019077300700019918371622010-01-10       1960    bl ---       0--  u    #d1 aGUITARD, A. A.  aThe influence of variety temperature, and stage of growth on the response of spring barley to photoperiod.  c1960  tCanadian Journal of Plant Science, Ottawagv. 40, p. 65-80, 1960.