期刊论文

He, J.

中文

植物资源与环境学报

1674-7895

2009

18

2

57-61

10.3969/j.issn.1674-7895.2009.02.010

“十一五”国家科技支撑计划项目（2007BAD41B01） 国家科学技术部国际科技合作项目（2006DFA6320） 中南林业科技大学研究生科技创新基金资助项目（2006sz11）

本校为第一且通讯机构

采用常规石蜡切片法对光皮树[Swida wilsoniana (Wanger. ) Soják. ]花芽分化过程中的解剖学特征进行了研究,并对花芽的外部形态也进行了观察.结果表明,光皮树的顶芽和腋芽都可以进行花芽分化;花芽分化在2月下旬开始,4月底基本完成;整个花芽分化过程可划分为5个时期:花芽未分化期、花序分化期、花萼分化期、花瓣分化期和雌雄蕊分化期,其中花序分化期还可分为分化前期和分化后期.在花芽分化过程中,光皮树的花芽形态逐渐增大、饱满,径向和纵向伸长,并在花瓣分化期形成塔形聚伞状花序.花芽纵切面的解剖结构显示,在花芽分化过程中,花芽内的生长锥逐渐增大并向上隆起;在花萼分化期生长锥的边缘产生4...

The anatomical characteristics of Swida wilsoniana ( Wanger.) Sojdk. flower bud during differentiation process were studied by paraffin method, and the external morphology of flower bud was also observed. The results show that both terminal bud and axillary bud of S. wilsoniana can differentiate into flower bud. The differentiation starts at late February and ends around the end of April. The whole differentiation process may be divided into five stages, including flower bud undifferentiation stage, inflorescence differentiation stage, calyx differentiation stage, petal differentiation stage, ...