草业科学2018，Vol.35Issue(4)：822-828,7.DOI:10.11829/j.issn.1001-0629.2017-0348
乙烯利对干旱胁迫下草地早熟禾生理指标的影响
Effect of ethephon on physiological indexes of Kentucky bluegrass under drought stress
摘要
Abstract
Kentucky bluegrass cultivar"Nuglade"plants were divided into two groups-ethephon treated (ETH) and non-ethephon treated control group (CK).These groups of plants were subj ected to three treatment condi-tions:well-watered,drought,and re-watering.The effects of ethephon on the drought responses of Kentucky bluegrass were studied by measuring physiological indicators such as electrolyte leakage and chlorophyll,solu-ble protein,and malondialdehyde (MDA)content.Under drought stress,'Nuglade'treated with ethephon was able to maintain a higher leaf relative water content of 23.47% (with that of the control group being 11.5%) and lower membrane stability expressed as EL 68.1% (with that of the control group being 90.7%).During re-watering,the EL of the ethephon group recovered to that of unstressed plants.Under drought stress,the MDA content in ETH plants was lower than that in the control group.The SP content of the ETH group was also higher than that in the CK group under re-watering conditions;Our results indicated that spraying ethephon on the leaves of Kentucky bluegrass could improve performance and promote the recovery of physiological indexes during re-watering.关键词
相对含水量/电解质渗透率/可溶性蛋白/丙二醛Key words
relative water content/electrolyte leakage/soluble protein/malondialdehyde分类
农业科技引用本文复制引用
隋永超,冷暖,姜赫男,武雪,罗智浩,叶昊坤,冯玉宇,许立新..乙烯利对干旱胁迫下草地早熟禾生理指标的影响[J].草业科学,2018,35(4):822-828,7.基金项目
中国林学会青年人才托举工程(2015QNRC001)) （2015QNRC001）
