pH值胁迫对喜树苗期生长及生理指标的影响  

The Camptotheca acuminata seedling's growth and changes of its physiological indexes under different pH stress

作　　者：张秋娟[1] 李淑玲[1] 冯建灿[1] 王新建 郑蕾 

机构地区：[1]河南农业大学林学园艺学院,河南郑州450002 [2]河南省林业科学研究所,河南郑州450008 [3]郑州市园艺厂,河南郑州450002

出　　处：《河南农业大学学报》2000年第2期193-195,共3页Journal of Henan Agricultural University

基　　金：河南农业大学与美国路易斯安那州州立大学合作项目!(9701)

摘　　要：对不同ｐＨ值胁迫下喜树苗期生长及几种生理指标的影响进行了初步研究，结果表明，不同ｐＨ值胁迫对喜树苗期叶片叶绿素、游离脯氨酸含量与 ＳＯＤ活性都有一定的影响．当培养液ｐＨ值５．５～６．５时叶片中叶绿素含量最高，ＳＯＤ活性最强，游离脯氨酸含量最低，喜树幼苗生长较适宜．The Camptotheca acuminata seedling's growth and the changes of its physiological indexes were studied un- der different pH stress. The results showed: the leaves' contents of chlorophyll pro and the activity of SOD were influenced by pH; the contents of chlorophyll were the highest, the activity of SOD was the biggest, the contents of pro were the lowest and the Camptothecin acuminata seedling grew well when the solution's pH was 5. 5 - 6.5.

关 键 词：PH胁迫 喜树 叶绿素 SOD活性 苗期生长 

分 类 号：Q949.761.8[生物学—植物学]