摘要
对鸢尾属中东北的3个种子具翅的野生种:水生种玉蝉花(Iris ensa taThunb.)、北陵(Iris typhifoliaK itag)、旱生种野鸢尾(Iris dichotom aPall.)的种子从形态、萌发实验、超显微结构方面进行了研究。结果表明:三者种子形态差异很大;都适合变温(30℃/20℃,8 h光照/16 h黑暗)的发芽条件;玉蝉花存在种源差异;超显微结构也显著不同。并探讨了超显微结构与进化的关系。
Iris ensata Thunb. , Iris typhifolia Kitag. , Iris dichotoma Pall. distribute in the Northeast of China. The research include： to observe the seed external shape, to study the germination in different condition of experiment and to compare the micro-structure of seeds of the three species. The result of study shows： the appearance shapes of the seeds are widely different, The changing temperature （30 ℃/20 ℃, the illumination in 8 hours/the dark in 16 hours） is suitable for the three species of seeds, Seeds of Iris ensata from different areas are different, and micro-structure characters among them have remarkable differences. And the relationship between micro-structure characters and evolution was discussed.
出处
《种子》
CSCD
北大核心
2006年第12期34-37,共4页
Seed
