Medicinal Plant

2012, v.3(04) 5-8

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Effects of Storage Condition on Seed Vigor of Three Medicinal Plants
Effects of Storage Condition on Seed Vigor of Three Medicinal Plants

摘要(Abstract):

[Objective] To study the effects of storage condition on seed vigour of three medicinal plants. [Method] With the seeds of Atractylodes macrocephala Koidz., Scutellaria baicalensia Georgi. and Polygala tenuifolia Willd. as the plant materials, seeds with water contents of 3%, 5% and 15% were stored at -10, 0, 20 and 36 ℃ for one year. Change laws of germination rate and vigour index of three medicinal plant seeds stored after one year were preliminarily researched. [Result] Among the two controlling factors, water content had more significant impact on seed germination rate and vigor index than temperature. Germination rate and vigor index of three medicinal plants seeds reduced with the decrease of storage temperature and seed water content. When the water content was controlled within 3%-5%, temperature had no significant impact on the seed germination rate and vigour index. However, seeds with 15% water content at 0 ℃ showed relatively low germination rate and vigour index. [Conclusion] Both seed germination rate and vigor index were affected by water content and storage temperature.

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