| 亏缺灌溉对枸杞果实糖积累和蔗糖代谢相关酶活性的影响 |
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| 引用本文： | 张萍,郑国琦,郑国保,张源沛,许兴.亏缺灌溉对枸杞果实糖积累和蔗糖代谢相关酶活性的影响[J].干旱地区农业研究,2009,27(6):160-163. |
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| 作者姓名： | 张萍 郑国琦 郑国保 张源沛 许兴 |
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| 作者单位： | 张萍,许兴(宁夏大学农学院,宁夏,银川,750021);郑国琦(宁夏大学农学院,宁夏,银川,750021;宁夏大学生命科学学院,宁夏,银川,750021);郑国保,张源沛(宁夏大学生命科学学院,宁夏,银川,750021) |
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| 基金项目： | 国家自然科学基金项目资助，宁夏科技攻关项目资助 |
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| 摘 要： | 通过控制灌溉量将土壤水分控制在18.20%(T1),19.50%(T2),20.60%(T3),22.40%(T4),23.50%(T5)不同的水平上,研究亏缺灌溉对枸杞果实糖积累和蔗糖代谢相关酶活性的影响.结果表明:随水分胁迫的增强,不同处理枸杞果实百粒重呈下降趋势,严重亏缺灌溉的T5百粒重显著低于其它处理;在枸杞全生育期果实己糖(葡萄糖、果糖)积累量递增,蔗糖积累量逐渐下降.且随亏缺灌溉的加重,红果期各处理果实己糖、蔗糖含量差异显著,其中T1、T2显著高于T5;枸杞果实全生育期转化酶活性保持在较高水平,呈先上升后下降趋势,红果期其活性下降保证了蔗糖的积累;蔗糖合成酶和蔗糖磷酸合成酶活性较低,呈下降趋势.且随水分胁迫的加强,合成酶活性呈上升趋势,这与水分胁迫愈重,愈有利于蔗糖积累相一致.亏缺灌溉提高了果实中己糖积累,改善了果实品质,但严重亏缺会降低果实产量.
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| 关 键 词： | 亏缺灌溉 枸杞 糖积累 蔗糖代谢相关酶 |
Effects of deficit irrigation on accumulation of sugar and activity of sugar metabolism-related enzymes of Lycium barbarum L. |
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| ZHANG Ping,ZHENG Guoqi,ZHENG Guobao,ZHANG Yuanpei,XU Xing.Effects of deficit irrigation on accumulation of sugar and activity of sugar metabolism-related enzymes of Lycium barbarum L.[J].Agricultural Research in the Arid Areas,2009,27(6):160-163. |
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| Authors: | ZHANG Ping ZHENG Guoqi ZHENG Guobao ZHANG Yuanpei XU Xing |
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| Institution: | ZHANG Ping1,ZHENG Guo-qi1,2,ZHENG Guo-bao3,ZHANG Yuan-pei3,XU Xing1(1.College of Agriculture,Ningxia University,Yinchuan,Ningxia 750021,China,2.College of Life Science,China) |
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| Abstract: | A study was conducted on the effects of water deficit on accumulation of sugar and activity of sugar metabolism-related enzymes of Lycium barbarum through controlling irrigation amount to keep the soil water at different levels(T1,18.20%;T2,19.50;T3,20.60%;T4,22.40%;T5,23.50%).The results showed that the 100-grain weight presented a descending trend with the intension of water stress,and it was significantly lower in T5 than that in other treatments.The hexose content(glucose and fructose) of Lycium barbaru... |
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| Keywords: | deficit irrigation Lycium barbarum L sugar accumulation sucrose metabolism-related enzymes |
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