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棉花根系分泌物对棉苗生长及生理活性的影响
引用本文:刘新虎,赵小亮,万传星,张利莉.棉花根系分泌物对棉苗生长及生理活性的影响[J].棉花学报,2009,21(4):335.
作者姓名:刘新虎  赵小亮  万传星  张利莉
作者单位:1. 塔里木大学生命科学学院,新疆,阿拉尔,843300
2. 塔里木大学生命科学学院,新疆,阿拉尔,843300;新疆生产建设兵团塔里木盆地生物资源保护利用重点实验室,新疆,阿拉尔,843300
基金项目:国家重点基础研究发展规划(973计划) 
摘    要: 以中棉所35为材料,研究了棉花根系分泌物水收集液对棉苗生长及生理活性影响。实验结果表明:根系分泌物低浓度时对棉花种子萌发,棉花幼苗植株的根长、株高、地下部分鲜重及地上部分鲜重有促进作用,而高浓度时有抑制作用;不同浓度的根系分泌物均有使棉苗根系活力减弱、叶绿素含量降低的趋势;根系分泌物低浓度时能促进酶SOD活性。

关 键 词:棉花  根系分泌物  化感作用  

Effect of Cotton Root Exudates on Cotton Seedling Growth and Physiological Activity
LIU Xin-hu,ZHAO Xiao-liang,WAN Chuan-xing,ZHANG Li-li.Effect of Cotton Root Exudates on Cotton Seedling Growth and Physiological Activity[J].Cotton Science,2009,21(4):335.
Authors:LIU Xin-hu  ZHAO Xiao-liang  WAN Chuan-xing  ZHANG Li-li
Institution:1.College of Life Science;Tarim University;Alar;Xinjiang 843300;China;2.Key Laboratory of Protection & Utilization of Biological Resource in Tarim Basin of Xinjiang Production & Construction Groups;China
Abstract:Effect of root exudates from the cotton material(CCRI 35) collected by water on cotton seedling growth and physiological activity was investigated.The results showed that root length,plant height,above-ground fresh weight,under-ground fresh weight of cotton seedling and cotton seed germination were promoted by root exudates at the low concentration,while restrained at high concentration.Root vigor,chlorophyll contents were reduced by root exudates at different concentrations.SOD activity was promoted by roo...
Keywords:cotton  root exudates  allelopathy
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