| 多效唑对蓝莓干旱胁迫的缓解作用研究 |
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| 引用本文： | 曾玮玮,李云霞,狄露露,孙旭科,李永强.多效唑对蓝莓干旱胁迫的缓解作用研究[J].安徽农业科学,2012,40(14):8063-8065. |
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| 作者姓名： | 曾玮玮 李云霞 狄露露 孙旭科 李永强 |
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| 作者单位： | 浙江师范大学化学与生命科学学院,浙江金华,321004;浙江师范大学化学与生命科学学院,浙江金华,321004;浙江师范大学化学与生命科学学院,浙江金华,321004;浙江师范大学化学与生命科学学院,浙江金华,321004;浙江师范大学化学与生命科学学院,浙江金华,321004 |
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| 基金项目： | 浙江省重大科技专项，浙江省新苗人才项目 |
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| 摘 要： | 目的]研究多效唑对蓝莓(Vaccinium uliginosum Linn.)干旱胁迫的缓解作用的机理。方法]以夏普兰和奥尼尔2个南高丛蓝莓品种为材料,通过提前喷施500 mg/L多效唑,研究多效唑对蓝莓受干旱后的保护效果。结果]提前喷施多效唑可以减小干旱胁迫下蓝莓叶片的电导率、丙二醛含量、H2O2含量及O2-.含量等的上升,同时缓解干旱胁迫下光合速率、蒸腾速率、叶片相对含水量、叶绿素含量等的下降。结论]通过喷施一定浓度的多效唑可以提高蓝莓的抗旱性。
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| 关 键 词： | 多效唑 蓝莓 抗旱性 光合作用 |
Study on Paclobutrazol Mitigating Effects on Drought Stress of Blueberry(Vaccinium uliginosum Linn.) |
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| Institution: | ZENG Wei-wei et al(College of Chemistry and Life Science,Zhejiang Normal University,Jinhua,Zhejiang 321004) |
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| Abstract: | Objective] The purpose was to study the mechanism of paclobutrazol mitigating drought stress of blueberry.Method] Two southern highbush blueberry cultivars(Sharpblue and O′Neal) were used as materials to study the protective effects of 500 mg/L paclobutrazol on blueberry stressed by drought treatment.Result] The results showed spraying aqueous solution of 500 mg/L paclobutrazol significantly alleviated the damages caused by drought stress.Pre-treatment of paclobutra201 decreased the level of relative conductivity,MDA content,contents of hydrogen peroxide(H2O2) and superoxide radical(O-2·),mitigated the decrease of photosynthetic rate,transpiration rate,relative water content and chlorophyll content under drought stress.Conclusion] It indicates pre-treatment of paclobutrazol can increase the resistance ability of blueberry to drought. |
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| Keywords: | Paclobutrazol Blueberry(Vaccinium vliginosum Linn ) Drought stress Photosynthesis |
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