Effects of Different Exogenous Hormone Treatments on Rootage Rate of Acer Tetramerum
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    Abstract:

    [Objective] In order to find efficient regeneration method, and to provide scientific guidance for artificial cultivation and landscape producing, the study focused on the effects of the type, concentration level of different exogenous hormones and cutting diameter of Acer tetramerum on the cutting rootage.[Methods] The study was carried out by cuttage experiment and statistical analysis.[Results] (1) The rooting rates of cutting propagation in the treatments of IAA(indole-3-acetic acid), IBA(indole butyric acid), NAA(1-naphthyl acetic acid) and GA(gibberellin acid) were significantly higher than those of controlled group, among which, the treatment of IBA performed the best. (2) The rootage rates of cutting propagation reached its maximum value at the concentration levels of 50 mg/L of IAA, 200 mg/L of IBA, 50 mg/L of NAA and 50 mg/L of GA, respectively. (3) The maximal average rootage rates of thick cutting(D ≥ 7 mm)reached 54%. At this cutting thick, the highest rootage rate(77%) was recorded in the treatment of IBA at concentration level of 200 mg/L.[Conclusion] The optimal combination of cutting rooting for Acer tetramerum is as follows:in early September, with the diameter>7 mm, and using 200 mg/L IBA.

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张继强,张洋东,刘东皓,杨雪梅,王三英,薛睿,赵亚萍.不同外源激素处理对桦叶四蕊槭扦插生根的影响[J].水土保持通报英文版,2017,37(4):207-210

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History
  • Received:November 30,2016
  • Revised:December 07,2016
  • Adopted:
  • Online: September 12,2017
  • Published: