盐胁迫对菊芋幼苗生长的影响  

Response to Salt Stress of the Seedling Growth in Jerusalem Artichoke

作　　者：郭淑华[1] GUO Shu-hua(Weifang University, weifang 261061, China)

机构地区：[1]潍坊学院,山东潍坊261061

出　　处：《潍坊学院学报》2017年第6期20-23,共4页Journal of Weifang University

基　　金：山东省星火计划项目(2011XH06004)

摘　　要：采用盆栽砂培试验,研究了不同浓度(0、20、40、80、150、200mM)的盐(NaCl)胁迫对潍坊当地菊芋幼苗的影响。结果表明:与对照相比,低浓度(20、40mM)的盐胁迫,菊芋幼苗的鲜干重,叶绿素含量变化不大,随着浓度的增加(80mM),菊芋幼苗的鲜干重,叶绿素a含量开始下降;当NaCl浓度达到150mM和200mM时,菊芋幼苗生长明显受抑制而逐渐死亡。研究结果说明,潍坊当地菊芋具有较高的耐盐性。Sand culture experiments were carried out to study the effects of different salt stress concentrations, 0, 20, 40, 80, 150, 200raM, on the seedling growth in weifang local Jerusalem artichoke. Results show that there are no obviously changes on Jerusalem artichoke seedling fresh dry weight, chlorophyll content under low concentration （20, 40mM） salt stress, whereas, with the increase of concentration （80mM）, Jerusalem artichoke seedling fresh dry weight and content of chlorophyll a began to decline. Finally, the seedling growth was inhibited and death obviously until NaC1 concentration reaching 150 and 200mM in Jerusalem artichoke. The results showed that weifang local Jerusalem artichoke might have higher salt stress resistance.

关 键 词：菊芋 盐胁迫 鲜干重 

分 类 号：Q945[生物学—植物学]