摘要
以1年生楠木实生苗为试材,研究测定了楠木在不同土壤含水量条件下相关的生理指标,以期为楠木幼苗的培育及应用提供参考。结果表明:由土壤干旱和水涝引起的水分胁迫都会对楠木幼苗的生理特性产生不同程度的影响,但变化趋势大致相同,表现为楠木幼苗的叶绿素含量降低,丙二醛(MDA)含量明显上升,超氧化物歧化酶(SOD)活性、过氧化物酶(POD)活性和可溶性蛋白质含量都随着胁迫时间的延长表现为先升高后降低的趋势。表明楠木幼苗对由土壤干旱和水涝引起的水分胁迫都具有一定的适应性。
Taking one-year-old Phoebe zhennan S.Lee et F.N.Wei seedlings as test materials,related physiological indicators under different soil moisture conditions were measured,in order to provide a reference for the cultivation and application of Phoebe zhennan S.Lee et F.N.Wei seedlings.The results showed that water stress caused by soil drought and water logging would have different effect on physiological characteristics of Phoebe zhennan S.Lee et F.N.Wei seedlings,but roughly the same trend.It showed that the chlorophyll content of Phoebezhennan S.Lee et F.N.Wei seedlings was decreased,malondialdehyde（MDA）content was significantly increased,the activities of superoxide dismutase（SOD）and peroxidase（POD）and protein content increased obviously at beginning and decreased later along with water logging duration.Test proved Phoebe zhennan S.Lee et F.N.Wei seedlings had a certain flexibility to water stress caused by soil drought and water logging.
出处
《北方园艺》
CAS
北大核心
2015年第7期68-71,共4页
Northern Horticulture
基金
湖北省科技支撑计划资助项目(2013BBB24)
关键词
楠木
水分胁迫
生理指标
Phoebe zhennan S.Lee et F.N.Wei water stress physiological indicators
