人工老化过程中玉米种子活力与一些生理指标变化的研究  

Study on Seed Vigour and Physioloycial Characteristics Changes of Maize Seeds During Artificial Aging Course

作　　者：张加强[1] 田树云[1] 李晓辉[1] 

机构地区：[1]广西大学,南宁530005

出　　处：《种子》2007年第6期46-48,共3页Seed

摘　　要：以1个玉米自交系和2个杂交种为试验材料,采用人工加速老化的方法,对其种子活力与生理特性变化进行研究。结果表明:随着种子老化加深,发芽势、发芽率、活力指标及POD活性逐渐降低,相对电导率和MDA含量逐渐增加,并且与发芽势、发芽率及活力指标呈负相关;POD活性与发芽势、发芽率、活力指标呈正相关关系。Seeds of a maize inbred and two hybrid cultivar were used to investingate the seed vigour and physioloyical characteristics. The results showed： the germination rate,germination energy,vigour index,activities of POD were reduced gradually along the seed aging; but the conductance rate and MDA content increased. The correlation between conductance rate ,MDA content and the germination index, activity index were negative. POD activities and all germination index were positive.

关 键 词：玉米 人工老化 种子活力 生理特性 

分 类 号：S513[农业科学—作物学]