玉米种子人工老化过程中超弱发光与生理代谢的关系  

Relationship of Ultraweak Luminescence Intensity with Physiological Metabolism of Maize Seeds during Artificial Aging

作　　者：田茜 段乃彬 李群 颜廷进 戴双 贾文斌 张文兰 

机构地区：[1]山东省农作物种质资源中心,山东济南250100

出　　处：《山东农业科学》2016年第8期30-33,共4页Shandong Agricultural Sciences

基　　金：济南市科学技术局;济南市高校院所自主创新项目"种子活力快速鉴定新方法的研究"(编号:201202062)

摘　　要：以玉米品种"郑单958"种子为材料,研究了种子人工老化过程中超弱发光(ultraweak luminescence,UWL)的变化及其与种子活力、相对电导率、ATP含量的关系。结果表明,随着老化时间的延长,种子的发芽率、发芽势和发芽指数、UWL强度、ATP含量均逐渐下降,相对电导率逐渐升高;UWL强度与发芽率、发芽势、发芽指数和ATP含量显著正相关,与相对电导率显著负相关。表明,UWL与以ATP含量为标志的能量水平密切相关;UWL作为一种无损、灵敏、快速的物理检测指标,可应用于种子活力无损检测研究。The seeds of maize（ Zea mays L.） variety Zhengdan 958 were used to study the change of ultraweak luminescence（ UWL） intensity and its relationship with seed vigor,relative electric conductivity and ATP content during artificial aging.The results indicated that the germination percentage,germination potential,germination index,UWL intensity and ATP content decreased gradually,while the relative electric conductivity increased with the prolongation of artificial aging.The correlation analysis showed that UWL intensity was significantly positively correlated with germination percentage,germination potential,germination index and ATP content,while significantly negatively correlated with relative electric conductivity.It was concluded that UWL was closely related to the energy level symbolized by ATP content,and as a fast nondestructive physical indicator with better sensitivity,it could be applied into the study of seed vigor nondestructive testing.

关 键 词：玉米种子 人工老化 种子活力 超弱发光 ATP 

分 类 号：S513.01[农业科学—作物学]