Effects of high temperature stress on the physiological and biochemical characters of two types of cool-season turf grass
To understand the effects of high temperature stress on the physiological and biochemical characters of cool-season turf grass, a pot experiment with two turf grasses Festuca and Poa was conducted to study their plasma membrane permeability, proline and MDA contents, and POD and SOD activities at the day and night temperature 38/28 t. With the increasing time of the high temperature stress, the leaf relative conductivity and free proline and MDA contents of the grasses presented an increasing trend, being significantly higher (P<0. 05) than the control on the 8th days after the stress, whereas the POD and SOD activities showed a trend of increasing first and decreased then. All the test varieties of Festuca arundinacea had better heat-resistance than those of Poa, and the Reble IV of F. Arundinacea as well as the Blue Sapphire of Poa had the best heat-resistance.
cool-season turf grasshigh temperature stressphysiological and biochemical indices.
国家科技期刊平台
NSTL
万方数据
维普
