【作者】 杨鹏； 刘世彪； 朱杰英； 周俊薇； 张仙艳； 刘长高；

【Author】 YANG Peng, LIU Shi-biao, ZHU Jie-ying, ZHOU Jun-wei, ZHANG Xian-yan, LIU Zhang-gao (College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China)

【机构】 吉首大学生物资源与环境科学学院；

【摘要】 初步观察了单芽狗脊蕨的生长环境及其芽胞的发育过程。结果表明,单芽狗脊蕨喜阴湿环境和偏酸土壤。5月的复上开始分化出芽胞,至7月成熟的芽胞可在母体上萌发,长出不定须根,芽胞脱离母体后即能在土壤中萌发生长。芽胞越大,其萌发率和生长速度越高。单芽狗脊蕨一年可产生两代芽胞。进行胎生的单芽狗脊蕨的孢子囊缺失或数目减少。更多还原

【Abstract】 The habitat and gemmae development of Woodwardia unigemmata was primarily observed. The results showed that shade and humid environment and slightly acid soil were suitable for the growth of this fern. The gemmae were differentiated on the leaf in May, and the maturity gemmae could germinate and grow to adventitious roots in July. Then the gemmae broke away from the original plant and kept on growing in soil. The bigger size of the gemmae, the quicker germination and growth they had. Two generations can be produced by this way in a year. Sporangium were lacked or reduced when viviparity was occurred in this plant.更多还原