摘要
对短穗柽柳(TamarixLaxa)幼苗的水分状况进行了研究.幼苗自5月下旬萌发至9月份,其水势逐渐降低,由-0.75Mpa降至-2.47Mpa,保水力逐渐增强,幼苗表现出较强的蒸腾调节能力.试验结果还表明,至7月份,幼苗已具较强的抗旱生理适应性,这使幼苗顺利度过7月底至8月初的干旱炎热时期而存活.
A systematic study on the water status about the seedling of Tamarix laxa was made.The result showed:the seedling possessed distinct ability to adjust its transpiration;there was a marked drop in water potential and a strengthening in water holding capacity.Up to July,the drought resistance physiology of the seedling could grow normally in desert when the habitat became dry.
出处
《新疆大学学报(自然科学版)》
CAS
1999年第1期86-89,94,共5页
Journal of Xinjiang University(Natural Science Edition)
关键词
短穗柽柳
水势
保水力
幼苗
柽柳属
固沙树种
Tamarix Laxa water potential transpiration rate Water holding capacity