准备《观察植物细胞有丝分裂》实验材料时，已是入秋，气温稍低，根的培养往往需要一星期或更长时间，有时会延误实验预定时间。为了缩短实验材料的准备期，本人在选材、材料处理、培养方法上作对比试验，结果最易长根的是葱，其次是大蒜，再次是洋葱；从培养方法来看，水培比 When preparing the experimental material for “observing plant cell mitosis,” it is already in autumn and the temperature is slightly lower. The cultivation of roots often takes a week or more, sometimes delaying the experimental schedule. In order to shorten the preparation period of experimental materials, I conducted comparative tests on material selection, material handling, and cultivation methods. The most likely roots were onion, followed by garlic, and onion again; in terms of cultivation methods, the water-to-breed ratio