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1 results

  • The Effects of Light and Temperature on Yellow Nutsedge (Cyperus esculentus) Basal-Bulb Formation

  • E. W. Stoller, Joseph T. Woolley
  • Journal:
    Weed Science / Volume 31 / Issue 2 / March 1983
    Published online by Cambridge University Press:
    12 June 2017, pp. 148-152

  • Investigations were conducted to determine whether light, temperature, or their interaction stimulated primary basal-bulb formation on underground stems of yellow nutsedge (Cyperus esculentus L.) seedlings grown from tubers. Basal-bulb formation results when internodes shorten and leaves lengthen. When seedlings were grown without medium around the underground shoots, a temperature alternation of 10C stimulated basal-bulb formation; light did not affect the process. When seedlings were grown with medium around the underground shoots, either light or alternating temperature stimulated basal-bulb formation. Nine colors of light gave the same stimulus as white (fluorescent) light. Phytochrome did not appear to be the photoreceptor for the stimulus, as both red and far-red light responses were identical to that of white light.