Mechanism of seed dormancy and the releasing strategies are studied for Lavandula angustifolia Mill. which is cultivated in Netherland and Yili in Xinjiang, China. The observation on morphological and biological characteristics have conducted on the seeds. The seed dormancy has been break down by cold stratification or hormone treatment. It has been researched that the reason of seed dormancy and growth inhibiting of seed coat by testing the germination inhibitor in the different parts of seeds, culturing e...