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通过对野生向日葵种子吸水速度试验和切去种子钝端1/4，去壳、去皮等处理．结果表明引起野生向日葵种子休眠的关键部位是种壳和种皮。种壳中的发芽抑制物质和种皮的透气性不良是种子休眠的主要原因。任何去除种壳和种皮的处理都能迅速有效地破除休眠促进萌发。
Through the wild sunflower seed water absorption speed test and cut off the blunt end of the seed 1/4, de-shell, peeled and other treatment. The results showed that the key parts that caused the dormancy of wild sunflower seeds were seed coat and seed coat. Seed germination inhibitory substances and seed coat of poor air permeability is the main reason for seed dormancy. Any treatment that removes the seed coat and seed coat can quickly and effectively break dormancy and promote germination.