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农学学报 ›› 2025, Vol. 15 ›› Issue (5): 80-84.doi: 10.11923/j.issn.2095-4050.cjas2024-0061

• 林学 园艺 园林 食用菌 • 上一篇    下一篇

植物生长调节剂对三叶木通扦插生根的影响

刘磊(), 李薇(), 李争艳, 高本旺, 黄成名, 张海玲   

  1. 三峡植物园管理处,湖北宜昌 443000
  • 收稿日期:2024-03-29 修回日期:2025-02-21 出版日期:2025-05-20 发布日期:2025-05-19
  • 通讯作者:
    李薇,女,1974年出生,湖北宜昌人,高级工程师,本科,研究方向:特色植物资源收集评价及开发利用。通信地址:443000 湖北省宜昌市夷陵区龙泉镇土门金银岗 三峡植物园,Tel:0717-7780252,E-mail:
  • 作者简介:

    刘磊,女,1987年出生,江苏连云港人,工程师,硕士,研究方向:特色植物资源收集评价及开发利用。通信地址:443000 湖北省宜昌市夷陵区龙泉镇土门金银岗 三峡植物园,Tel:0717-7780252,E-mail:

  • 基金资助:
    宜昌市科技研究与研发项目“乡土特色水果资源收集评价及种质创新研究”(A24-1-070)

Effects of Plant Growth Regulators on Rooting of Akebia trifoliata Cuttings

LIU Lei(), LI Wei(), LI Zhengyan, GAO Benwang, HUANG Chengming, ZHANG Hailing   

  1. Three Gorges Botanical Garden Management Office, Yichang Hubei 443000
  • Received:2024-03-29 Revised:2025-02-21 Online:2025-05-20 Published:2025-05-19

摘要: 为研究不同植物生长调节剂、浓度和处理时间对三叶木通扦插生根效果的影响,以三峡植物园引种的三叶木通为材料,采用正交试验设计,以清水浸泡处理作为对照,设置因素A植物生长调节剂种类[3个水平为IBA、NAA和IBA+NAA(1:1)]、因素B浓度(3个水平为50、150、250 mg/L)和因素C处理时间(3个水平为2、4、6 h)共10个处理,扦插3个月后统计各处理的插穗存活率、生根率、平均根数、平均根长、平均根表面积及平均根体积,采用隶属函数法对插穗生根指标进行综合评价。结果显示,三叶木通为皮部生根型,其中枝节处不定根占不定根总数的26.4%,节间处不定根占不定根总数的73.6%。3个因素对生根效果影响为植物生长调节剂处理时间>种类>浓度。在2、4、6 h 这3种处理时间中,处理4 h的生根效果最佳;在植物生长调节剂IBA、NAA和IBA+NAA(1:1)中,IBA+NAA(1:1)表现最佳;不同植物生长调节剂浓度(50、150、250 mg/L)对生根效果无显著影响。研究发现,10个处理组合中,250 mg/L IBA+ 250 mg/L NAA+ 2 h的平均隶属函数值最高,生根效果最佳。研究旨在为三叶木通良种繁育提供科学依据。

关键词: 三叶木通, 扦插, 植物生长调节剂, 正交试验, 生根类型, 方差分析, 综合评价

Abstract:

To explore the effects of different plant growth regulators, concentrations and treatment time on rooting of A. trifoliata cuttings, using the A. trifoliata introduced in Three Gorges Botanical Garden as test material, the orthogonal experiment design and the subordination function were used to comprehensively evaluate the rooting indexes. The results showed that the adventitious root formation of A. trifoliata belonged to the bark rooting, and the number of adventitious from node and internode accounted for 26.4% and 73.6% of the total number of adventitious roots, respectively. The effects of three factors on rooting were ranked as treatment time> plant growth regulator types> concentrations. Among the three treatment times (2, 4 and 6 h), the rooting effect of 4 h treatment had the best effectiveness; among the three plant growth regulators, IBA+ NAA (1:1) showed the best performance; and there were no significant difference among plant growth regulator concentrations (50, 150 and 250 mg/L). Among the 10 treatment combinations, 250 mg/L IBA+ 250 mg/L NAA for 2 h had the highest average subordinate function value and best rooting effect. This research provided scientific basis for propagation superior variety of A. trifoliata.

Key words: A. trifoliata, cutting propagation, plant growth regulators, orthogonal experiment design, rooting type, variance analysis, comprehensive evaluation