| 香榧雌花芽的形态分化 |
| |
| 引用本文： | 程晓建,黎章矩,喻卫武,戴文圣,周文声.香榧雌花芽的形态分化[J].林业科学,2009,45(10). |
| |
| 作者姓名： | 程晓建 黎章矩 喻卫武 戴文圣 周文声 |
| |
| 作者单位： | 1. 浙江广播电视大学,杭州,310012;浙江林学院现代森林培育技术省级重点实验室,临安,311300
2. 浙江林学院现代森林培育技术省级重点实验室,临安,311300 |
| |
| 基金项目： | 国家科技部项目，浙江省科学技术重大招标项目 |
| |
| 摘 要： | 香榧(Torreya grandis CV.'Merrillii')是我国榧树(T.grand/s)中品质优良的自然变异类型经无性繁殖培育而成的优良品种(黎章矩等,2004;2005;程晓建等,2007).花芽分化是年发育周期中重要的物候期,研究花芽分化的时期、所需的内外条件以及与其他物候期的关系是果树栽培重要研究方向(黎章矩等,1986a;1986b;史继孔等,1998).
|
| 关 键 词： | 香榧 榧树 雌球花 花芽分化 |
Morphological Differentiation of Female Flower Bud of Torreya grandis cv. 'Merrillii' |
| |
| Cheng Xiaojian,Li Zhangju,Yu Weiwu,Dai Wensheng,Zhou Wensheng.Morphological Differentiation of Female Flower Bud of Torreya grandis cv. 'Merrillii'[J].Scientia Silvae Sinicae,2009,45(10). |
| |
| Authors: | Cheng Xiaojian Li Zhangju Yu Weiwu Dai Wensheng Zhou Wensheng |
| |
| Abstract: | To provide the scientific basis for establishing the efficient cultivation and management measures of Torreya grandis cv. ' Merrillii' , the process of the female flower bud differentiation was studied with the paraffin method. Results indicated that the ovulating strobilus differentiation of T. grandis cv.'Merrillii' was mainly in the winter and the early spring. The ovulate strobilus formed in the middle and upper part of young tips of the mixed-bud. Their primordia appeared in early November before which there was no distinction in the dissected shape between the mixed-bud and the nutrition bud. Through the developments of bract, ovule scale, nucellus and integument, the strobilus started to blossom in the next mid-April and entered in a period of free nucleus of endosperm without formed female gametophyte and archegonium. The whole process lasted about 160 d. The illumination and themoisture in summer and autumn were main conditions to affect the female flower bud differentiation. |
| |
| Keywords: | Torreya grandis cv 'Merrillii' T grandis ovulate strobilus flower bud differentiation |
| 本文献已被 万方数据 等数据库收录！ |
|
