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Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (19): 55-61.doi: 10.11924/j.issn.1000-6850.casb19030084

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Softwood Cutting Propagation Technique of Acer truncatum

Yan Liping1, Wang Yinhua1(), Ren Fei1, Shu Defeng2, Liu Cuilan1, Li Qinghua1, Zang Zhenrong1, Wu Dejun1()   

  1. 1Shandong Provincial Academy of Forestry/ Shandong Provincial Key Laboratory of Forest Tree Genetic Improvement, Jinan 250014
    2College of Life Sciences, Qilu Normal University, Jinan 250200
  • Received:2019-03-20 Revised:2020-05-19 Online:2020-07-05 Published:2020-07-08
  • Contact: Wang Yinhua,Wu Dejun E-mail:wyh_0322@163.com;sdlky412@163.com

Abstract:

In this study, the internal and external factors that affect the softwood cutting were discussed to provide references for the softwood-cutting propagation and introduction and domestication of Acer truncatum. An orthogonal experiment of four factors by three levels [L9(34)] was applied to studying the effects of three growth regulators and their concentrations, treating time and cutting mediums on rooting rate, adventitious root number, maximum root length and root width of A. truncatum. The results indicated that: the rooting rate and the development indexes of A. truncatum root were influenced not only separately by the factors such as growth regulators and their concentrations, treating time and cutting mediums, but also synthetically by many factors. The best treatment combination for softwood cutting of A. truncatum was A1B1C1D1, in which, the softwood cutting was treated with ABT1 of 1500 mg/L for 10 seconds, then planted in mixed medium, which resulted in 89% rooting rate. The comprehensive analysis of membership function showed that the optimum treating combination for root development was treatment No.4, namely, 1500 mg/L NAA treating for 5 min and taking perlite as the medium. The membership value was 1.82, and the rooting rate was 87%. Considering the rooting rate and the root development indexes, treatment No.4 has relatively high practical value in application and can meet the needs of variety improvement.

Key words: Acer truncatum, softwood cutting propagation, mediums, rooting rate, root development

CLC Number: