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冰凉花根系发育形态学的初步研究
引用本文:刘玫,李瑞军,刘鸣远.冰凉花根系发育形态学的初步研究[J].武汉植物学研究,1992,10(1):7-11.
作者姓名:刘玫  李瑞军  刘鸣远
作者单位:啥尔滨师范大学生物系,啥尔滨师范大学生物系,啥尔滨师范大学生物系 哈尔滨 150080,哈尔滨 150080,哈尔滨 150080
摘    要:冰凉花属于宿根植物,其根几乎终生为初生结构。一年生苗直根系的主根和侧根的初生木质部均为二原型。二至多年生植株的不定根分为二原型、三原型、四原型和五原型,其分枝均为二原型。根在一年中有两个生长期。展叶结果营养期产生新的不定根,旧根顶端恢复延长生长或产生新的分枝。夏季枯萎休眠期新生根变成黄褐色,停止生长。秋季地下生长期根系又开始生长。冬季严寒迫使生长趋于停止。研究冰凉花根系发育形态学不仅具有理论意义而且有很好的应用前景。

关 键 词:冰凉花  根系  发育  形态学

A INITIAL STUDY ON DEVELOPMNETAL MORPHOLOGY OF ROOT SYSTEM OF ADONIS AMURENSIS
Liu Mei,Li Ruijun,Liu Mingyuan.A INITIAL STUDY ON DEVELOPMNETAL MORPHOLOGY OF ROOT SYSTEM OF ADONIS AMURENSIS[J].Journal of Wuhan Botanical Research,1992,10(1):7-11.
Authors:Liu Mei  Li Ruijun  Liu Mingyuan
Abstract:Adonis amurensis is perennial herb, Its roots are nearly primary structure in the whole life, Primary Xylems of main root and lateral roots of one year seedling are diarch. The adventitious roots of two to many year plants are diarch, triarch, quadrarch and pentareh, The branches of the adventitions root are the same as lateral roots of main root, The roots have two growing periods in one year. One is after flower period or early fruit period in spring. Many new adventitious roots arise from the base nods of new shoot; some new branches arise from the old adventitious roots and some root tops of the old one may grow continously, The other is underground growing period in autumn, usually no new adventitious roots arising, Between two periods there is a dormancy period in summer. The eolour of new roots changes from white to yellow or brown. The growth stops in winter foreedly. Studying on the developmental morphology of Adonis amurensis has theoretical meaning and practical prospect.
Keywords:Adonis amurensis  Root system  Developmental morphology  
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