植物生理学中的实验方法往往是林业生产上经常使用到的。本人在指导学生做实验的过程中发现,现使用的原林业部教育宣传司所编写的实验指导书中。关于光合强度测定的实验方法存在一定的不当之处。现就此实验提出两点改进意见。以起抛砖引玉之作用。一、实验材料的处理原来实验中是这样处理的:在选好的叶片茎部叶柄处环涂三氯甲烷,防止光合产物外运。本人在资料中查得,三氯甲烷只是一种常用的有机溶剂。它的主要性质是易溶于水,能 The experimental methods in plant physiology are often used in forestry production. I am in the process of guiding students to experiment, found that the use of the original Ministry of Forestry Education Propaganda Department prepared experimental instructions. There are some defects in the experimental method of measuring photosynthetic intensity. Now this experiment made two improvements. To start the role of throwing bricks. First, the experimental material handling The original experiment is handled as follows: In the selected leaves stem petioles coated with chloroform, to prevent the photosynthetic products Sinotrans. I found in the information, chloroform is only a common organic solvent. Its main property is soluble in water, can