富营养化水体灌溉对高羊茅生理生态特征的影响  

Effects of Eutrophic Water Irrigation on Physio-ecological Characteristics of Festuca arundinacea L.

作　　者：杨子君[1] 赵树兰[1] 多立安[1] 

机构地区：[1]天津师范大学化学与生命科学学院,天津300387

出　　处：《植物研究》2009年第4期439-444,共6页Bulletin of Botanical Research

基　　金：天津师范大学滨海新区专项研究计划项目(52LE19);天津市科技发展计划项目(043100611)

摘　　要：通过采用两处不同浓度富营养化水体对高羊茅进行灌溉,研究了高羊茅生理生态特征响应。结果表明:稀释后的富营养化水体能显著促进高羊茅根系生长,当稀释浓度大于50%时,不利于株高的增长。富营养化水体的各个浓度对高羊茅叶绿素各项指标无显著影响。各富营养化水体稀释后灌溉高羊茅,对其游离脯氨酸、可溶性糖、丙二醛(MDA)含量、超氧化物歧化酶(SOD)活性的影响与对照相比差异不显著,外环水体能显著促进高羊茅过氧化物酶(POD)活性增加,稀释浓度为75%能使高羊茅过氧化氢酶(CAT)活性显著增加。综上分析表明,富营养化水体稀释后灌溉高羊茅是可行的,且生活区污水更适合用于高羊茅的灌溉。Effects of different concentrations of eutrophic water on physio-ecological characteristics of Festuca arundinacea L. was investigated. The results showed that the diluted eutrophic water could significantly promote root growth of F. arundinacea. When diluted concentration was more than 50%, it inhibited plant height growth. Diluted concentration of the eutrophic waters had no significant effect on chlorophyll content, proline, soluble sugar, malondialdehyde （MDA） content, super-oxide dismutase （SOD） activity of F. arundinacea L.. The outer ring water could promote peroxidase （POD） activity, and 75% concentration could increase catalase （CAT） activity. From the analyses above, it could be concluded that irrigation with diluted eutrophic water would be feasible to F. arundinacea L. , and quarters water was optimal for the irrigation.

关 键 词：富营养化水体 高羊茅 抗氧化酶 游离脯氨酸 可溶性糖 丙二醛 

分 类 号：Q945.79[生物学—植物学]