棉花根系分泌物对棉苗生长及生理活性的影响  

Effect of Cotton Root Exudates on Cotton Seedling Growth and Physiological Activity

作　　者：刘新虎[1] 赵小亮[1] 万传星[1] 张利莉[1,2] 

机构地区：[1]塔里木大学生命科学学院,新疆阿拉尔843300 [2]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

出　　处：《棉花学报》2009年第4期335-336,F0003,共3页Cotton Science

基　　金：国家"973"计划前期研究专项(2007CB116303)

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。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 root exudates at the low concentration.

关 键 词：棉花 根系分泌物 化感作用 

分 类 号：S562[农业科学—作物学]