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植物研究 ›› 2021, Vol. 41 ›› Issue (3): 372-379.doi: 10.7525/j.issn.1673-5102.2021.03.007

• 研究报告 • 上一篇    下一篇

萘乙酸对阳春砂不同插穗扦插繁殖效果的影响

何国振1, 邱科颖1, 李明晓1,2, 何卓航1, 吕秉鼎1, 张丽霞3, 汤丽云4()   

  1. 1.广州中医药大学中药学院,广州 510006
    2.珠海市中西医结合医院,珠海 519000
    3.中国医学科学院药用植物研究所云南分所,云南省南药可持续利用重点实验室,景洪 666100
    4.华南农业大学生命科学学院,广州 510642
  • 收稿日期:2020-02-28 出版日期:2021-05-20 发布日期:2021-03-24
  • 通讯作者: 汤丽云 E-mail:tly1231@scau.edu.cn
  • 作者简介:何国振(1966—),男,教授,主要从事药用植物生理与分子生物学研究。
  • 基金资助:
    广东省林业科技创新项目(2018KJCX033);广东省农业科技创新体系管理项目(0835-190Z22404211);国家重点研发计划项目(2017YFC1701102)

Effects of α-naphthalene Acetic Acid on Cutting Propagation Efficiency of Amomum villosum

Guo-Zhen HE1, Ke-Ying QIU1, Ming-Xiao LI1,2, Zhuo-Hang HE1, Bing-Ding LÜ1, Li-Xia ZHANG3, Li-Yun TANG4()   

  1. 1.College of Traditional Chinese Medicine,Guangzhou University of Chinese Medicine,Guangzhou 510006
    2.Zhuhai Hospital of Integrated Traditional Chinese and Western Medicine,Zhuhai 519000
    3.Yunnan Key Laboratory of Southern Medicinal Resources, Yunnan Branch Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Jinghong 666100
    4.College of Life Sciences,South China Agricultural University,Guangzhou 510642
  • Received:2020-02-28 Online:2021-05-20 Published:2021-03-24
  • Contact: Li-Yun TANG E-mail:tly1231@scau.edu.cn
  • About author:HE Guo-Zhen(1966—),male,professor,principally study medicinal plant physiology and molecular biology.
  • Supported by:
    Forestry Science and Technology Innovation Project of Guangdong,China(2018KJCX033);Agricultural Science and Technology System Management Project of Guangdong,China(0835-190Z22404211);National Key R&D Program of China(2017YFC1701102)

摘要:

以阳春砂根状茎茎尖、根状茎、直立茎芦头3种不同材料为插穗,研究不同浓度的ɑ-萘乙酸(NAA)对扦插效果的影响,以筛选出最佳的NAA处理浓度,寻找除分株繁殖外的高效营养繁殖方法。结果表明,未经NAA处理的根状茎茎尖、根状茎和直立茎芦头3种插穗的出芽率和生根率比较低,出芽率依次为10.0%、3.3%和23.3%;生根率依次为23.3%、10.0%和3.3%。而200 mg·L-1的NAA处理可以显著提高根状茎茎尖、根状茎和直立茎芦头3种插穗的存活率、出芽率和生根率;与对照比较,3种插穗的存活率依次提高17.7%、23.4%和26.7%;出芽率依次提高13.3%、50.3%和53.3%;生根率依次提高43.3%、26.7%和53.4%。200 mg·L-1的NAA处理可以显著提高3种插穗再生根和再生芽的生长指标。根状茎茎尖再生根的数量、长度、直径分别比对照提高56.7%、82.6%和29.2%;根状茎的再生根长度显著比对照长203.5%;直立茎芦头的再生芽的长度和直径比对照提高25.2%和35.2%。NAA处理后的根状茎茎尖插穗的芽再生方式有两种,一种是原来的茎尖继续生长,另一种是从插穗的节上分化出新芽。阳春砂根状茎茎尖、根状茎和直立茎芦头3种插穗经200 mg·L-1 NAA处理后可以显著提高成活率,这为阳春砂种苗生产建立了分株繁殖以外的另一种高繁殖系数的营养繁殖方法。

关键词: 阳春砂, 茎尖, 根状茎, 直立茎芦头, 存活率, 成活率

Abstract:

To obtain a high-efficiency method of vegetative propagation for Amomum villosum, we studied the effects of different concentrations of α-naphthalene acetic acid(NAA) added on three kinds of cuttings of tip of rhizome(TR), rhizome and erect stem basal(ESB). The results showed the budding rate and rooting rate of cuttings of TR, rhizome and ESB which were not treated by NAA were at a low level respectively. The budding rates of the three cuttings were 10.0%, 3.3% and 23.3% respectively, and the rooting rates were 23.3%, 10.0% and 3.3%, respectively. Compared with controls, living rates, budding rates and rooting rates of three kinds of cuttings were increased dramatically. In sequence of TR, rhizome and ESB, living rates of three kinds of cuttings were increased by 17.7%, 23.4% and 26.7% respectively, budding rates were increased by 3.3%, 50.3% and 53.3% respectively, and rooting rates were increased by 43.3%, 26.7% and 53.4% respectively. The growth indexes of roots regenerated from three kinds of cuttings which were treated by 200 mg·L-1 NAA were improved obviously. Comparing with controls, the number, length and diameter of roots regenerated from TR were increased by 56.7%, 82.6% and 29.2% respectively, the length of roots regenerated from rhizome was increased by 203.5%, and the length and diameter of buds regenerated from ESB were increased by 25.2% and 35.2% respectively. There were two ways that buds regenerated from the cuttings of TR treated by NAA. One was the original bud of tip recovered growing, but the other was the new bud regenerated from cutting nodes. NAA affected the cuttings of tip of rhizome, rhizome and erect stem basal in survival rate. Survival rates of three cuttings treated by 200 mg·L-1 NAA increased dramatically comparing with control. Besides division propagation, a new high-efficiency method for vegetative propagation of A.villosum was set up.

Key words: Amomum villosum Lour., tip, rhizome, erect stem basal, survival rate, living rate

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