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学科类别:植物适应年级:初一年级活动构思和原理:伞草,又名风车草、旱伞草、水竹.伞草株丛繁茂,姿态优美,叶形奇特,是室内常见的观叶植物,伞草的顶生茎,是有芽带叶茎,浸在水中能长出不定根.因此利用水插,来进行伞草的繁殖是很容易的,春、夏、秋三季均可开展这项活动,成活率基本上是100%.工具和材料:一段伞草的顶生茎,一个玻璃瓶(盛水的容器),河水或放置了2～3天的自来水,剪刀.活动过程:1.剪取伞草的顶生茎,留茎2～15厘米(视玻璃容器的深浅,可长可短).2,将伞状叶剪短1/3～2/3.3.将茎插入玻璃容器的水中,顶生茎的顶端要全部浸入水中,叶
Discipline category: Plant Adaptation Year: First Year Activities Concepts and Principles: Umbellifera, also known as Windmill Grass, Arundospermum, Water Bamboo. Umbrella Grass is luxuriant, beautiful posture, strange leaf shape, is a common indoor foliage plant The top stem of Umbellaria, which has buds with leaf stems, can grow adventitious roots when immersed in water. Therefore, it is easy to reproduce Umbellaria using water, and it can be developed in spring, summer and autumn. Activity, survival rate is basically 100%. Tools and materials: A section of Umbrella’s top stem, a glass bottle (water container), river water or placed 2 to 3 days of tap water, scissors. Activity process: 1. Cut the upper stem of Umbellaria and keep the stem 2-15 cm (depending on the depth of the glass container, it can be short or long). 2. Cut the umbrella leaf 1/3 to 2/3.3. Insert the stem into the glass container. In water, the top of the top stem should be completely immersed in water.