棉花学报
棉花學報
면화학보
COTTON SCIENCE
2009年
4期
335-337
,共3页
刘新虎%赵小亮%万传星%张利莉
劉新虎%趙小亮%萬傳星%張利莉
류신호%조소량%만전성%장리리
棉花%根系分泌物%化感作用
棉花%根繫分泌物%化感作用
면화%근계분비물%화감작용
cotton%root exudates%allelopathy
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.
以中棉所35為材料,研究瞭棉花根繫分泌物水收集液對棉苗生長及生理活性影響.實驗結果錶明:根繫分泌物低濃度時對棉花種子萌髮,棉花幼苗植株的根長、株高、地下部分鮮重及地上部分鮮重有促進作用,而高濃度時有抑製作用;不同濃度的根繫分泌物均有使棉苗根繫活力減弱、葉綠素含量降低的趨勢;根繫分泌物低濃度時能促進酶SOD活性.
이중면소35위재료,연구료면화근계분비물수수집액대면묘생장급생리활성영향.실험결과표명:근계분비물저농도시대면화충자맹발,면화유묘식주적근장、주고、지하부분선중급지상부분선중유촉진작용,이고농도시유억제작용;불동농도적근계분비물균유사면묘근계활력감약、협록소함량강저적추세;근계분비물저농도시능촉진매SOD활성.
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.