联系电话:
18221290082
产品名称:TTC*
:021—60449724,
产品单位:gm
产品规格:5/10/25
CAS号:298-96-4
氯代三苯基四氮唑(triphenyltetrazolium chloride,TTC),也称红四氮唑(Red tetrazoline,RT)。可用来测定种子活力,被种子中的还原性物质(脱氢酶)还原为红色的TTF,从而使活种子胚着上红色而胚乳不被染色。而死 种子*不被染色。
1. 浸泡 将待测种子在 30 ~ 35 ℃温水中浸种(大麦、小麦 6 小时,玉米 5 小时左右),以增强种胚的呼吸作用。 2. 显色 取吸胀的种子 200 粒,用刀片沿种子胚的中心线纵切为两半,将其中的一半置于 2 只培养皿中,每皿 100 个半粒,加入适量的 0.5% 溶液,以覆盖种子为度。然后置于 30 ℃恒温箱中 1 h 。观察结果,凡胚被染为红色的是活种子。 将另一半在沸水中煮 5 min 杀死胚,作同样染色处理,作为对照观察。 3. 计算活种子的百分率
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