笔者在教学实践中摸索出以小麦种子为材料培养根毛,效果良好。方法一:沙基培养法。选取新鲜、子粒饱满的小麦种子20～30粒,在清水中浸泡24h让其充分吸水膨胀,然后在培养皿中铺一层2cm厚的湿润细沙,将膨胀的小麦种子摆放在沙土上,注意保持沙土湿润,置于较温暖处。36～38h后便可 In the teaching practice, the author finds out that using wheat seeds as a material to cultivate root hair has a good effect. Method one: Sand-based culture method. Choose 20 to 30 grains of fresh, grain-filled wheat seeds, immerse them in clean water for 24 hours to allow them to fully absorb water, and then spread a layer of 2 cm thick moist sand on a Petri dish and place the expansive wheat seeds on sandy soil. Pay attention to keeping the sand moist and in a warm place. After 36~38h