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通过解剖观察发现,漆树种子的外种皮是由栓质化细胞、栅状细胞和石细胞所组成,它们的不透水性是造成种子休眠期长的主要原因。通过种子提取物的生物鉴定和离体胚的发芽试验证明,胚和胚乳中均含有抑制物质,这是造成种胚生理休眠的根本原因。实验证明,用硫酸处理0.5～1小时,再层积15天以上,可以打破种子的休眠,也可用500～1000ppm的赤霉素处理代替层积。
Through anatomical observation, it was found that the outer seed coat of the lacquer tree seeds is composed of the petri cells, the palisade cells and the stone cells, and their impermeability is the main reason for the long dormancy period of the seeds. Through the bioassay of seed extract and the germination test of in vitro embryos, both the embryo and the endosperm contain the inhibitory substances, which is the fundamental reason for physiological dormancy. Experiments show that treatment with sulfuric acid 0.5 to 1 hour, and then stacked for more than 15 days, you can break the seed dormancy, can also be used 500 ~ 1000ppm GA treatment instead of stratification.