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首页> 外文期刊>Seed Science and Technology >Methods for breaking the dormancy of eastern redbud (Cercis canadensis) seeds.
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Methods for breaking the dormancy of eastern redbud (Cercis canadensis) seeds.

机译：打破东部紫荆（Cercis canadensis）种子休眠的方法。

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摘要

Cercis canadensis is best propagated by using seeds, but the seed dormancy is hard to break. In this paper, we studied the physical and physiological barriers responsible for dormancy of C. canadensis seeds. Results showed that both seed coat and inhibiting substances in the endosperm played a role in dormancy of C. canadensis seeds. Consequently, we evaluated the effects of thermal and chemical scarification, cold and warm stratification, splitting the cotyledon end of the testa, and soaking in gibberellic acid in breaking seed dormancy. All the treatments had a positive effect on seed germination. The best method to break seed dormancy was to immerse seeds in sulphuric acid (98%) for 11-13 minutes, following cold stratification at 4 degrees C for 14 days and soaking in 500 mg l-1 GA3 for 24 hours.
机译：加拿大紫荆最好通过使用种子繁殖，但是种子休眠很难打破。在本文中，我们研究了导致加拿大念珠菌种子休眠的物理和生理障碍。结果表明，胚乳中的种皮和抑制物质均对加拿大念珠菌种子的休眠起作用。因此，我们评估了热和化学划痕，冷和热分层，分裂睾丸的子叶末端以及浸泡在赤霉素中以破坏种子休眠的影响。所有处理均对种子发芽有积极作用。打破种子休眠的最佳方法是将种子浸入硫酸（98％）中11-13分钟，然后在4摄氏度下冷分层14天，然后浸泡在500 mg l -1 GA中 3 24小时。

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