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中国农学通报 ›› 2025, Vol. 41 ›› Issue (18): 90-98.doi: 10.11924/j.issn.1000-6850.casb2025-0019

• 林学·园艺·园林 • 上一篇    下一篇

基质配比、穗条类型及生根剂对野茉莉扦插生根的影响

莫方舒1(), 何家敏2, 李文忠3, 陈琴4, 刘闵豪2, 肖兴翠2()   

  1. 1 西华大学,成都 611743
    2 四川省林业科学研究院/四川玉蟾山楠木培育国家长期科研基地,成都 610081
    3 雅安市雨城区林业局,四川雅安 625099
    4 西昌学院,四川西昌 615013
  • 收稿日期:2025-01-02 修回日期:2025-04-17 出版日期:2025-06-25 发布日期:2025-07-06
  • 通讯作者:
    肖兴翠,女,1976年出生,四川成都人,研究员,博士,主要从事林木育种和森林培育方面的研究。通信地址:610081 成都市金牛区星辉西路18号 四川省林科院,Tel:028-83222080,E-mail:
  • 作者简介:

    莫方舒,女,2003年出生,四川广安人,学士,从事园林植物研究。E-mail:

  • 基金资助:
    四川省科技计划项目(重点研发项目)“四川安息香科野生树种资源收集评价及种苗繁育技术研究(面上项目)”(2022YFN0034)

Effects of Substrate Ratio, Spike Type and Rooting Agent on Rooting of Styrax japonicas Cuttings

MO Fangshu1(), HE Jiamin2, LI Wenzhong3, CHEN Qin4, LIU Minhao2, XIAO Xingcui2()   

  1. 1 Xihua University, Chengdu 611743
    2 Sichuan Academy of Forestry/ Sichuan Yuchan Mountain Nanmu Cultivation National Longterm Scientific Research Base, Chengdu 610081
    3 Forestry Bureau of Yucheng District, Ya’an City, Ya’an, Sichuan 625099
    4 Xichang University, Xichang, Sichuan 615013
  • Received:2025-01-02 Revised:2025-04-17 Published:2025-06-25 Online:2025-07-06

摘要:

为提高野茉莉扦插的生根率,本研究以野茉莉当年生嫩枝及1年生老枝为试验材料,运用正交试验设计,分析基质配比、穗条类型、生根剂种类、浓度及浸泡时间等因素,对野茉莉扦插生根率的影响。结果表明,野茉莉扦插属于愈伤组织和皮部混合生根型,26~38 d开始生根。扦插基质、穗条类型、生根剂种类对野茉莉扦插生根率、校正生根率、生根数量、根系长度均有极显著影响,生根剂浓度及浸泡时间对根系长度有显著影响。以生根率为主对各因素最佳水平进行筛选,扦插基质以珍珠岩:蛭石=1:3(V:V)混合生根效果最佳,穗条以嫩枝生根效果最佳,生根剂400 mg/L IBA、浸泡60 min的生根效果最佳。极差分析表明,影响野茉莉扦插生根的最显著因子为生根剂种类。综合分析认为,采用珍珠岩:蛭石=1:3(V:V)混合作为扦插基质,以嫩枝做穗条,在400 mg/L的IBA溶液中浸泡60 min,并在春季进行扦插,可显著提高野茉莉扦插成活率。

关键词: 野茉莉, 扦插育苗, 基质配比, 穗条类型, 生根剂种类, 生根率, 成活率

Abstract:

To enhance rooting efficiency of Styrax japonicus cuttings, an orthogonal experimental design was conducted using current-season softwood and 1-year-old hardwood shoots. Five factors (substrate composition, cutting type, rooting hormone type, concentration, and immersion duration) were evaluated for their impacts on rooting performance. Results revealed a mixed rooting mechanism involving both callus and bark tissues, with root emergence occurring between 26-38 days post-cutting. Substrate type, cutting category, and hormone type demonstrated highly significant effects on rooting rate, normalized rooting rate, root count, and root length, while hormone concentration and immersion time significantly influenced root length. Optimization analysis prioritizing rooting rate identified the optimal conditions as: perlite: vermiculite (1:3) substrate, softwood cuttings, and treatment with 400 mg/L IBA solution for 60 minutes. Range analysis highlighted rooting hormone type as the most critical factor, followed by concentration, cutting type, substrate ratio, and immersion duration. Integrated findings recommended using a perlite: vermiculite (1:3) medium with softwood cuttings, pretreated in 400 mg/L IBA solution for 60 minutes, and conducted during spring for maximal propagation success.

Key words: Styrax japonicas, cuttage seedling, substrate ratio, cuttings type, rooting hormone type, rooting rate, survival rate