PV曲线技术比较三种木本植物的水分状况Comparison of Water Relation among Three Woody Plants by Using Pressure-volume Technique
陈由强,叶冰莹,朱锦懋
摘要(Abstract)：
用PV 曲线技术对三种木本植物木麻黄、湿地松、异叶南洋衫的水分状况进行比较. 结果表明:抗旱性较强的湿地松水饱和时的渗透势φ100π 和初始质壁分离时的渗透势φ0π及总体体积弹性模量ε都较低. 在植物水分关系研究中, RWC, ROWC, RDW 和Ap, ε和Vo 等水分参数具有重要意义.
关键词(KeyWords)： PV曲线;水分参数;木麻黄;湿地松;异叶南洋衫
基金项目(Foundation): 福建省教委基金
作者(Author): 陈由强,叶冰莹,朱锦懋
参考文献(References)：
- 1 Anderson D J. A postulated w ater availability gradient in a coastallandscape: an ecophysiologicalanalysis. Funct. Ecol., 1988 (2): 391～397
- 2 Acevedo E. Diurnal grow th trends, w ater potentiol, and osm otic adjustent of m aize and sorghumleaves in the field. Plant Physiol., 1979, 67: 489～493
- 3 Evans LT. Som e physiologicalaspects of evolution in w heat. Aust JBio Sci, 1970, 23: 725～741
- 4 陈由强. 干旱胁迫条件下植物渗透调节的研究. 福建师范大学学报(自然科学版), 1991, 7(4): 107～122
- 5 Jones M M. Osm otic adjustm ent in leaves of sorghum in response to w ater deficits. PlantPhysiology., 1978, 61: 122～126
- 6 Tyree M T. The m easurem entofthe turgor pressure and w aterrelations ofplants by the pressure-bom b technique. JExp Bot., 1972 , 23: 267～282
- 7 王万里. 压力室(Pressure Cham ber) 在植物水分状况研究中的应用. 植物生理学通讯, 1984, (3):52～57
- 8 Cutler JM. Effects w ater stress and osm otic constituents of cotton leaves. Plant Physiol., 1978 ,42: 261～268
- 9 Fereres E. Seasonalchanges in w ater potentialand turgor m aintenance in sorghum and m aize underw ater stress. PlantPhysiol., 1978, 44: 261～267