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ABA对锌铬复合胁迫大豆养分吸收的影响

Effects of ABA on nutrition absorption of soybean under Zn/Cr contaminated stress

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【作者】 刘静辉建春林立金朱雪梅邵继荣

【Author】 LIU Jing;HUI Jianchun;LIN Lijin;ZHU Xuemei;SHAO Jirong;College of Resource and Environment,Sichuan Agricultural University;College of Horticulture,Sichuan Agricultural University;Ya’an Soil and Water Conservation Monitoring Substation;College of Life Science,Sichuan Agricultural University;

【机构】 四川农业大学资源环境学院四川农业大学园艺学院雅安水土保持生态环境监测分站四川农业大学生命理学院

【摘要】 通过人工模拟锌、铬污染盆栽控制性试验,研究了不同浓度ABA浸种处理和喷施处理对大豆植株养分吸收的影响。结果表明:总体上1μmol·L-1和40μmol·L-1ABA提高效果较5μmol·L-1、10μmol·L-1和20μmol·L-1ABA差。5μmol·L-1、10μmol·L-1ABA对大豆植株氮、磷、钾吸收提高效果较好,20μmol·L-1ABA对茎磷吸收和叶氮吸收提高效果较好。ABA对大豆不同器官部位氮、磷、钾吸收的影响因浓度和作用方式不同而有所差异。20μmol·L-1ABA喷施和10μmol·L-1ABA浸种提高了"科源绿秋王"地上部生物量,5μmol·L-1ABA喷施和浸种提高了"黄壳豆"地上部生物量。养分吸收和产量均表现为浸种处理提高效果好于喷施处理。说明ABA能减轻锌铬对大豆植株的生长胁迫,提高大豆植株养分吸收和生物量。

【Abstract】 The nutrient absorption of soybean plants were studied through zinc and chromium artificial polluted pot controlling experiment. The main results were as follows: 1μmol·L- 1and 40μmol·L- 1ABA showed worse effects on the improvement of nutrient absorption than 5μmol·L- 1,10μmol·L- 1and 20μmol·L- 1ABA in general. 5μmol·L- 1and 10μmol·L- 1ABA performed better effects on the uptakes of nitrogen,phosphorus and potassium in common,and 20μmol·L- 1ABA showed better effect on P absorption of stem and N absorption of leaf. ABA played different roles on the absorption of nitrogen,phosphorus and potassium in different plant organs due to different ABA concentrations and applications. The biomass of shoots of Keyuanlǜqiuwang were improved by 20μmol·L- 1ABA spraying and10μmol·L- 1ABA soaking while Huangkedou were improved by5μmol·L- 1ABA spraying and soaking. The nutrition absorptions and yields of soybean treated by ABA soaking were performed better than ABA spraying. It indicated that ABA could improve the nutrition absorptions and biomass of soybean by alleviating the zinc /chromium stress on soybean.

【关键词】 ABA大豆养分生物量
【Key words】 abscisic acidsoybeannutrientbiomass
【基金】 四川省科技厅2008年科技支撑计划项目(2008FZ0180)资助
  • 【文献出处】 干旱区资源与环境 ,Journal of Arid Land Resources and Environment , 编辑部邮箱 ,2015年01期
  • 【分类号】S565.1;X173
  • 【下载频次】193
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