The effect of ethylene on adventitious root formation in mung bean (Vigna radiata) cuttings

  • J. A. Robbins
  • M. S. Reid
  • J. L. Paul
  • T. L. Rost


A promotive effect of ethylene on the formation of adventitious roots by mung bean cuttings was demonstrated using a recirculating solution culture system to apply dissolved ethylene. The number of roots increased in proportion to the length of exposure to the gas. Mean root numbers per cutting for a 4-day exposure to ethylene and an air control were 45 and 19, respectively. The tissue was most sensitive to a 24-h ethylene “pulse” 2–3 days after taking cuttings. Rooting was maximal at a concentration of 13 μl 1−1 ethylene. The ethylene treatment inhibited the growth of roots and terminal buds. Application of Ag+, as silver thiosulfate, reversed the effect of ethylene on the two growth responses but had no effect on root numbers. Norbornadiene, another inhibitor of ethylene action, reversed all three ethylene responses.


Adventitious Root Mung Bean Ethephon Root Number Adventitious Root Formation 
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Copyright information

© Springer-Verlag New York Inc. 1986

Authors and Affiliations

  • J. A. Robbins
    • 1
  • M. S. Reid
    • 1
  • J. L. Paul
    • 1
  • T. L. Rost
    • 2
  1. 1.Department of Environmental HorticultureUniversity of California at DavisDavis
  2. 2.Depatment of BotanyUniversity of California at DavisDavis

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