摘要
以多年生黑麦草"爱神特2号"种子为试材,采用室内栽培方法,研究了保水剂对草坪草叶片的细胞质膜透性、根系活力、脯氨酸(Pro)、丙二醛(MDA)、超氧化物歧化酶(SOD)和过氧化氢酶(CAT)等生理特性及抗热性的影响。结果表明:随着胁迫温度和时间的增加,无论添加保水剂与否,草坪草叶片的SOD活性、CAT活性和根系活力持续降低,MDA含量和相对电导率持续上升;但在相同胁迫温度和时间下,添加保水剂后,SOD、CAT活性、Pro含量和根系活力均显著升高,MDA含量和叶片相对电导率均显著降低。
Taking perennial ryegrass ＇ Aishente No. 2＇ seed as material, using constant temperature incubator, the effects of super absorbent polymer（SAP） on heat resistance character and the physical indicators, relative electrical conductivity, root activity, proline （Pro）, malonaldehyde （MDA）, superoxide dismutase （SOD）, catalase （CAT）, and so on were studied. The results showed that with the increasing of high temperature stress, SOD,CAT activity and root activity were decreased, the content of Pro, MDA and relative electrical conductivity were increased. With the SAP, the heat resistance character of turfgrass was higher than those in control. But under the same stress temperature and time,without SAP as control,SOD and CAT activity,Pro content and root activity were significantly increased,MDA content and electrical conductivity were significantly decreased.
出处
《北方园艺》
CAS
北大核心
2013年第15期76-80,共5页
Northern Horticulture
关键词
草坪草
抗热性
保水剂
turfgrass heat resistance super absorbent polymer
