Abstract

Roberts, B.R. 1974. Trees under moisture stress. The Buckeye Arborist 5(6): 4-6.

There are four methods which could be utilized by plantsmen for measuring the status of water in plant material. These techniques, which are neither complicated nor time consuming, can, if used properly, provide a useful estimate of plant water balance. However, we should remember that any measuring procedure has its limitations, and whatever method is employed, the use of representative and comparative samples is very important. The four methods are pressure equilibration, liquid equilibration, stomatal aperature, and relative water content.

Although there are many other techniques for estimating plant water status, the methods reviewed represent the most expedient procedures for use in the field and/or with limited supplies and equipment.

• © 1975, International Society of Arboriculture. All rights reserved.