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蜡叶标本在教学中应用广泛。如果用传统方法制作,绿色的茎叶通常变为褐色,严重失真,影响初学者的观察效果。用这里介绍的方法制作的标本,不但能保持植物茎叶的绿色,并且叶片不易脱落。一、方法步骤1.采集材料:按常规方法进行,这里只处理其茎叶。2.配制硫酸铜饱和溶液:用250毫升36%的乙酸、150克硫酸铜晶体、1200毫升自来水配制而成。
Wax leaf specimens widely used in teaching. If made by traditional methods, the green stems and leaves usually turn brown, serious distortion, affect the beginner’s observation effect. The specimens produced by the method described here not only keep the stems and leaves of plants green, but also they are hard to fall off. First, the method steps 1. Collecting materials: According to the conventional method, where only the stems and leaves. 2. Preparation of saturated solution of copper sulfate: 250 ml of 36% acetic acid, 150 grams of copper sulfate crystals, 1200 ml of tap water from the preparation.