天津农学院学报 ›› 2019, Vol. 26 ›› Issue (4): 38-42.doi: 10.19640/j.cnki.jtau.2019.04.008

• 研究与简报 • 上一篇    下一篇

苹果砧木G.11试管苗增殖与生根培养研究

郭静1, 柴慈江1, 通信作者, 史燕山1, 骆建霞1, 江文2   

  1. 1. 天津农学院 园艺园林学院,天津300384;
    2. 天津樱桃谷农业科技发展有限公司,天津301908
  • 收稿日期:2019-04-03 发布日期:2020-01-19
  • 通讯作者: 黄海东(1972-),男,教授,博士,研究方向:资源与应用微生物学。E-mail:hdhuang@tjau.edu.cn。
  • 作者简介:程斌(1997-),男,本科在读,研究方向:生物技术。E-mail:153900910@qq.com。
  • 基金资助:
    国家级大学生创新创业训练计划项目(201810061001); 天津市大学生创新创业训练计划项目(201910061068); 国家自然科学基金(31571790)

Micro shoot proliferation and rooting of apple rootstock G.11

GUO Jing1, CHAI Ci-jiang1, Corresponding Author, SHI Yan-shan1, LUO Jian-xia1, JIANG Wen2   

  1. 1. College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300384, China;
    2. Tianjin Cherry Valley Agricultural Technological Development Co. Ltd, Tianjin 301908, China
  • Received:2019-04-03 Published:2020-01-19

摘要: 将苹果砧木G.11试管苗茎段分别接种于含有不同浓度的6-BA或KT的MS培养基中,或接种于含有不同浓度6-BA的WPM培养基中进行增殖培养。然后再将茎段接种于土壤做支撑物的培养基中进行生根培养。结果表明,6-BA可以明显促进G.11试管苗茎段萌芽与增殖,KT则对此无效;与MS培养基相比,WPM培养基可以显著降低G.11试管苗的玻璃化率;在含有6-BA 0.5 mg/L的WPM培养基中G.11试管苗的繁殖系数可达到4.9,玻璃化率为0;在以黏壤土或砂壤土做培养基支撑物的培养基中G.11试管苗的生根率分别为75.9%和76.7%,且试管苗生有根毛。本结果将为建立苹果砧木G.11的离体快速繁殖技术体系提供依据。

关键词: 苹果砧木G.11, 试管苗, 增殖, 生根

Abstract: The stem sections of apple rootstock G.11 plantlet in vitro were respectively inoculated in MS media with different concentrations of 6-BA or KT, or inoculated in WPM media with different concentrations of 6-BA for proliferation. The stem sections were respectively inoculated in soil supporting media for rooting. The results showed that 6-BA promoted G.11 micro stem sections budding and proliferation obviously,while KT had no effect on this. Compared with MS medium, WPM medium reduced vitrification rate of G.11 plantlet in vitro significantly. In WPM medium containing 0.5 mg/L of 6-BA, micro shoot multiplication coefficient of G.11 was 4.9 and vitrification rate was 0. Rooting rate of the G.11 micro shoot cultured in clay soil or sandy soil supporting media were 75.9% and 76.7%, respectively. Moreover, the plantlet had root hair. These results provide basic data for establishing the micro rapid propagation technique of G.11.

Key words: apple rootstock G.11, micro shoot, multiplication, rooting

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