不同颜色小麦籽粒的发芽特性和生理特征的研究

用３个不同籽粒颜色的小麦品种进行发芽特性的研究。结果表明，红皮小麦品种的发芽率和发芽指数低于白皮小麦品种，不同颜色籽粒的吸水速率没有明显差异，呼吸强度、电导率和α淀粉酶活性随色级的增加面降低。３个小麦品种的淀粉同工酶有８条共显带，而扬麦５号有一特殊的小分子酶带。ＧＡ３处理可明显提高发芽速度、显著增加ＰＰ紫色和扬麦５号的苗高和芽鞘长度。

Study on Germinant Characters of Wheat Seed with Different Coat Color

Three wheat cultivars with different seed coat color were studied on germinant characters The results showed that germination percentage and index of cultivars with red seed coat were lower than those of Siyang936,with white seed coat. There was no difference among cultivars in seed absorption rate of water. Respirats y rate. electric conductivity and alpina-amylase activity decreased as color level increased. 8 bands were found in every cultivar and additional band (No. 9) in Yangmai5 in annylase isoenzyme chart. GA, resulted in increasing germination index and lethgth of sheath and seedling of PPzise and Yangmai5.