亚热带植物科学 ›› 2018, Vol. 47 ›› Issue (03): 211-213.DOI: 10.3969/j.issn.1009-7791.2018.03.003

• 植物生理生化与分子生物学 • 上一篇    下一篇

无土栽培下酸铝耦合对银杏含水率的影响

李忠芳,唐政,于秋良,苏辉兰,陈春岚   

  1. (贺州学院食品与生物工程学院,广西 贺州 542899)
  • 收稿日期:2018-04-22 修回日期:2018-06-11 出版日期:2018-09-30 发布日期:2018-09-30
  • 通讯作者: 唐政
  • 作者简介:李忠芳,博士,研究员,从事土壤培肥与环境生态研究。
  • 基金资助:
    国家自然科学基金(41361068);广西自然科学基金(2016GXNSFAA380183、2016GXNSFAA380160);贺州学院教授启动基金(HZUJS201611)

Effects of Aluminum Toxicity and Acidity on Moisture Content of Gingko under Soilless Culture

LI Zhong-fang, TANG Zheng, YU Qiu-liang, SU Hui-lan, CHEN Chun-lan   

  1. (College of Food and Bioengineering, Hezhou University, Hezhou 542899, Guangxi China)
  • Received:2018-04-22 Revised:2018-06-11 Online:2018-09-30 Published:2018-09-30
  • Contact: TANG Zheng

摘要: 采用双因素七水平的均匀设计方案,分析无土栽培下酸铝胁迫对银杏幼树植株含水率的影响。结果表明,银杏植株的含水率随pH降低而降低,随着铝处理浓度增加而下降,表明酸、铝胁迫越强,越能抑制银杏植株水分的正常吸收,导致植株缺水。对植物含水率受影响程度进行分析,pH为影响其生长第一因素,当pH低于3.5时植株干枯不能生长;pH大于5.0,铝对植株含水率无显著影响。因此,银杏植株含水率可作为受酸、铝胁迫的重要指标。

关键词: 植株含水率, 酸, 铝胁迫, 银杏

Abstract: ‘U207’ even design was used to study the effects of acidity and aluminum (Al) on moisture content of Gingko under soilless culture. Results showed that moisture content of Gingko was decreased with the acidity increasing as well as the Al concentration, which drew a conclusion that Gingko root could not absorb water regularly under high acidity and Al concentration culture. The result also showed that pH was the most important factor impacting on Gingko growth, the plant could not grow when pH was below 3.5, but the plant growth could not impact by Al concentration when pH was higher than 5.0. Therefore, Gingko plant moisture content could be as evaluation index under acidity and Al stresses.

Key words: plant water content, acid, aluminum stress, Gingko biloba

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