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浙江楠(phoebebe chekiangensis)是中国70年代新发现的樟科楠属新种,为国家重点保护的珍贵稀有树种。它的种子有休眠期,影响该树种的发展。试验结果,除去种皮能很好萌发,萌发率可达到100%.离体胚培养试验,种胚可以迅速萌发,发芽率达100%试验表明,浙江楠种子不属胚休眠,主要是种皮阻碍种子的充分萌发,种皮中虽含有ABA等抑制物质,但其种皮水浸提液并不影响已解除休眠及除去种皮的浙江楠种子的萌发。浙江楠种子的种皮透水性良好,而透气性差。当除去种皮后,其呼吸强度达1284.21微升氧气/10粒种子·小时,是完整种子呼吸强度的7.67倍。去种皮种子萌发的适宜温度为30℃。用室温层积(1.5～11.5℃)和变温层积(15～25℃,15～30℃变温,高温8小时,低温16小时)3周,同样可软化种皮,增强透气性,促进萌发,发芽率可达81.5～90%。变温层积效果比室温层积好,但在生产上,室温层积既经济又简便,易于推广应用。
Phoebebe chekiangensis is a new species of camphorata newly discovered in China in the 1970s, which is a rare and rare species under the state’s key protection. Its seeds have a dormant period, affecting the development of the species. Test results, the removal of the seed coat can germinate very well, the germination rate can reach 100% .In vitro embryo culture test, embryo can germinate quickly, the germination rate of 100% test showed that the seed is not embryo dormancy, mainly the seed coat Hinder seed full germination, although the seed coat contains ABA and other inhibitory substances, but its seed coat water extract did not affect the dormancy and removal of seed coat Zhejiang Nan seed germination. The seed coat of Zhejiang Nan seed water permeability is good, while the permeability is poor. When the seed coat is removed, its respiration intensity reaches 1284.21 microliters of oxygen per 10 seeds per hour, 7.67 times the respiration intensity of the intact seed. The optimum temperature for seed germination is 30 ℃. It also softens the seed coat and enhances the air permeability and promotes germination by laminating at room temperature (1.5 ~ 11.5 ℃) and variable temperature (15 ~ 25 ℃, 15 ~ 30 ℃ for 8 hours and low temperature for 16 hours) Germination rate up to 81.5 ~ 90%. Variable temperature stratification effect than the room temperature layer, but in production, room temperature stratification is both economical and simple, easy to promote the use of.