生长素的生物鉴定一、小麦胚芽鞘切段伸长法原理将小麦胚芽鞘的延长部分切成切段,飘浮在含有生长素的溶液中,这些切段可以继续伸长。最早应用的材料是燕麦胚芽鞘的切段,通过切段伸长的多少来测定不同浓度生长素对细胞伸长的作用。目前大多数已改用小麦为材料(小麦与燕麦有同样的效果)。操作技术将小麦种子用水浸泡两小时,放在盛 A bioassay of auxin First, the principle of wheat germ sheath cut extension method The wheat germ sheath extension cut into sections, floating in a solution containing auxin, these cut can continue to stretch. Earliest application of the material is oat coleoptile cuttings, cut by the number of sections to determine the growth of different concentrations of auxin effect on cell elongation. At present, most have switched to wheat (wheat and oats have the same effect). Operating techniques Soak the wheat seeds in water for two hours and place them in full bloom