摘要
试验以草地早熟禾(Poa pratensis L.)2个品种‘男爵(Baron)’、‘公园(Park)’和高羊茅(Festuca Arundinacea)2个品种‘盆景2000(Bonsai2000)’、‘爱瑞3(Arid)’为材料,在干旱处理下,测定草坪草的自由水含量、束缚水含量、叶片含水量、质膜透性、净光合速率、蒸腾速率及细胞间隙CO2浓度。结果表明:各生理指标存在不同的下降幅度和上升差异,四种材料抗旱性从强到弱依次为‘男爵’、‘公园’、‘盆景2000’和‘爱瑞3’。
The study was designed for four turfgrass cultivars： Baron, Bonsai 2000, Park, and Arid Ⅲ. Under drought stress, the experiment was conducted to determine the grasses＇ content of free water, of bound water, and of relative water （RWC）, relative electrical conductivity, net photosynthesis （Pn）, transpiration rate （Tr）, and intercellular CO2 concentration （Ci）. The result indicates that different physiological indices show different extent of increases and decreases and the order of drought resistance of the four turfgrass cultivars from high to low is Baron, Bonsai2000, Park, and Arid Ⅲ.
出处
《草地学报》
CAS
CSCD
2007年第2期164-167,共4页
Acta Agrestia Sinica
基金
国家"十一五"科技支撑计划课题(2006BAD03A01)
关键词
冷季型
草坪草
干旱胁迫
生理反应
Cold-season type grass
Turfgrass
Drought stress
Physiological response
