侧金盏花种子发育过程中生理生化动态变化特性

以黑龙江省野生花卉侧金盏花的种子为试材,采用测量观察和生理试验方法,对其发育过程中形态及生理生化指标的变化规律进行了研究。结果表明:开花后0~40 d是侧金盏花种子形态建成的关键时期;开花后30~40 d含水量下降速度很快;开花后0~40 d是干质量快速积累阶段,40~50 d干质量趋于稳定;野生条件下采收的侧金盏花种子较引种后采收的种子大;侧金盏花种子的种皮透水性较好;种子发育过程中可溶性糖质量分数呈"下降-上升-下降"的变化趋势,可溶性蛋白质质量分数及POD(过氧化物酶)活性呈"上升-下降"的变化趋势。侧金盏花开花后40~50 d达到生理成熟,是进行采收的最佳时期。

Physiological and BiochemicalC haracteristics of Adonis amurensis During Seed Development

We studied the morphological, physiological and biochemical indexes of seeds of Adonis amurensis Regel et Radde during seed development in Heilongjiang, China.The critical period of the seed morphogenesis was 0-40 d.Water content dropped rapidly in 30-40 d after blossom.Dry weight increased significantly in 0-40 days and leveled off in 40-50 d after blossom.The seeds under wild condition were bigger than those under artificial condition.The water permeability of testa was good.Soluble sugar content presented an up-down-up trend.Soluble protein content and POD activity rose gradually in 0-20 d and then descend gradually.The seeds of A.amurensis would matured after 40-50 d of blossom.