包括木本植物在内的植物抗高温、干旱的标准通常用其体内的水分状况来衡量。这些状况一般指束缚水的含量、蒸腾强度、水分亏缺等。为获得这些数据需要提取大量植物样料及花费很长时间,往往由于试验过程中内外条件的变化影响试验结果的准确性。1983年,我们在生长季节对耐旱性不同的4种木本植物进行了水分状况与水分相对 Plants that include woody plants, such as those that are resistant to high temperatures and drought, are usually measured by their moisture status in their body. These conditions generally mean irreducible water content, transpiration, water deficit and the like. In order to obtain these data, a large amount of plant material needs to be extracted and takes a long time, and the accuracy of the test result is often affected by the change of internal and external conditions during the test. In 1983, we compared the water status and water content of four species of woody plants with different drought tolerance during the growing season