关键词: 枣（Ziziphus jujubes Mill.）, 种子, 萌发

Abstract: Using the seed of Ziziphus jujubes Mill. Zaocuiwang as material,the factors influencing seed germination of shell-beaking, seed soakin,crude extracts of jujube seeds and hormone treatment were studied to investigate the seed germination characteristic and find out the suitable method to promote the germination of jujube tree. The results showed that the main reason for the difficulty in germination was the mechanical inhibition of Zaocuiwang seeds shell, followed by the inhibiting substances in jujube seeds. The seedling emergence rate of Zaocuiwang was 50% which was seeded directly after breaking shells. The water absorption rate of jujube kernel was notably enhanced under concentrated sulfuric acid treatment and can be reached saturation in 12 hours. Three kinds of plant growth regulator used in the experiment had different effects on seed germination, soaking in 0.2 mg/L GA₃ for 36 hours was the best treatment for Zaocuiwang seed germination with the germination rate of 85.71%.

Key words: Ziziphus jujubes Mill., seed, germination