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中国农学通报 ›› 2025, Vol. 41 ›› Issue (16): 45-50.doi: 10.11924/j.issn.1000-6850.casb2024-0704

• 林学·园艺·园林 • 上一篇    下一篇

‘航育1号’芦竹组培快繁体系的建立

李珊珊(), 刘宝平, 李亚平, 李晶炤(), 晏武, 刘次次, 王艺   

  1. 神舟绿鹏农业科技有限公司,北京 101127
  • 收稿日期:2024-11-18 修回日期:2025-04-22 出版日期:2025-06-05 发布日期:2025-06-05
  • 通讯作者:
    李晶炤,男,1972年出生,北京人,博士,主要从事品种选育、分子育种。通信地址:101127 北京市通州区于家务回族乡果村神舟绿鹏,Tel:010-80535771,E-mail:
  • 作者简介:

    李珊珊,女,1989年出生,吉林舒兰人,高级工程师,硕士,主要从事品种选育、植物组培快繁技术体系开发。通信地址:101127 北京市通州区于家务回族乡果村神舟绿鹏,Tel:010-80535771,E-mail:

  • 基金资助:
    北京市科学技术协会金桥工程种子资金项目“芦竹多态性分子标记的开发与应用”(2024)

An Efficient Micro Propagation System for Arundo donax ‘Hangyu No.1’

LI Shanshan(), LIU Baoping, LI Yaping, LI Jingzhao(), YAN Wu, LIU Cici, WANG Yi   

  1. Shenzhou Lvpeng Agricultural Science & Technology Co., Ltd., Beijing 101127
  • Received:2024-11-18 Revised:2025-04-22 Published:2025-06-05 Online:2025-06-05

摘要: 为建立芦竹优良品种‘航育1号’的高效组培快繁体系,以3年生植株茎段为外植体,系统探究取样时间及植物生长调节剂组合对再生体系的影响。结果表明,最佳采样时间为7—8月,此时田间植株处于快速生长期,外植体经75%酒精30 s+0.1% HgCl2 15~20 min消毒处理后成活率达90%;腋芽诱导最优培养基为MS+6-BA 4 mg/L+IBA 1 mg/L,诱导率92.66%;增殖培养基采用MS+6-BA 7 mg/L+IBA 1 mg/L,增殖系数达3.51;生根培养基为1/2MS+NAA 0.2 mg/L,生根率97.36%。移栽时选择生根7~10 d的瓶苗,成活率达92.22%,当年4月底定植后株高可达3~3.5 m,分蘖数30~50个。本研究通过优化外植体处理、激素配比及炼苗移栽等关键技术,建立了完整的‘航育1号’芦竹组培快繁技术体系,为其规模化生产提供了理论依据与技术支撑。

关键词: 芦竹, ‘航育1号’, 组织培养, 快繁体系, 茎段, 生长调节剂, 规模化生产

Abstract:

In order to accelerate propagation of elite variety of Arundo donax ‘Hangyu No.1’, and establish an efficient regeneration system, the stem segments of 3-year-old plants were used as explants to systematically explore the effects of sampling time and plant growth regulator combinations on the regeneration system. The results revealed that the best sampling time was in July and August, and the field plants were in a rapid growth period. The explant sterilization used 75% ethanol for 30 seconds and then 0.1% HgCl2 for 15-20 min, resulting in a survival rate of 90% approximately. The medium for axillary bud induction was MS+ 6-BA 4 mg/L+ IBA 1 mg/L, 92.66% buds developed obviously. Bud proliferation medium was MS+ 6-BA 7 mg/L+IBA 1 mg/L, resulting in a proliferation coefficient of 3.51. The rooting medium was 1/2MS+ NAA 0.2 mg/L, and the rooting rate reached 97.36%. The best time for plant transfer to ex vitro conditions was 7-10 days after rooting. The survival rate was 92.22% in all the transferred plants. The plants were further moved to the field at the end of April and then under the standard field management. In November of the same year, the plant grew up to 3-3.5 m high with 30-50 tillers. This research provides solid technical support for large-scale production of ‘Hangyu No.1’.

Key words: Arundo donax, ‘Hangyu No.1’, tissue culture, efficient propagation system, stem, plant growth regulator, large-scale production