“吸湿—回干”处理对潍县萝卜陈种子活力的影响研究

Research on effects of hydration-dehydration treatment on vigor of Weixian radish old seeds

以自然条件贮藏3年的潍县萝卜陈种子为试材,研究了"吸湿—回干"处理对潍县萝卜陈种子活力的影响。结果表明:适当的"吸湿—回干"处理能显著提高潍县萝卜陈种子的发芽势、发芽指数、活力指数、幼苗根长和芽长,但对发芽率影响不大。本试验以浸种6h后回干处理效果最好,潍县萝卜陈种子活力最高。

This article investigates the effects of hydration dehydration treatment on vigor of Weixian radish old seeds. The results show that the application of suitable hydration-dehydration treatment improves the germina tion energy, germination index, and vigor index of radish seeds. What＇s more, the root length and shoot length of seedling are also significantly improved after the suitable treatment. However, there are no obvious effects on the seed germination rate. It is optimal for improving seed vigor of Weixian radish old seeds that the seeds are soaked in water for 6 h and then dehydrated to the original water content in this research_