橡胶树不同品种雌花分布和座果规律研究

张源源; 李国华; 龙青姨; 和丽岗; 康向阳

doi:10.3724/SP.J.1142.2013.30242

橡胶树不同品种雌花分布和座果规律研究

1.
林木育种国家工程实验室, 北京林业大学, 北京 100083
2. 林木、花卉遗传育种教育部重点开放实验室, 北京林业大学, 北京 100083
3. 云南省热带作物科学研究所, 云南景洪 666100

基金项目: 林业公益性行业科研专项(20100400900)。

详细信息

作者简介:
张源源(1989- ),男,硕士研究生,主要从事林木倍性育种与细胞遗传学研究(E-mail:yuanyuanhill@bjfu.edu.cn)。

通讯作者:
康向阳, E-mail: Kangxy@bjfu.edu.cn

中图分类号: S794.104
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- 文章访问数: 1134
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出版历程
- 收稿日期: 2012-08-22
- 修回日期: 2013-02-28
- 发布日期: 2013-06-29

Distribution of Pistillate Flowers and Disciplines of Fruit-set Success in Rubber Tree (Hevea brasiliensis Muell. Arg.)

1.
National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing 100083, China
2. Key Laboratory of Genetics and Breeding in Forest trees and Ornamental Plants of Ministry of Education, Beijing Forestry University, Beijing 100083, China
3. Yunnan Institute of Tropical Crops, Jinghong, Yunnan 666100, China

摘要

摘要: 以橡胶树(Hevea brasiliensis Muell.Arg.)RRIM600、GT1、RRII105、IAN873、RRIM712、PB217等6个品种为对象,对不同品种橡胶树雌花分布和座果位置进行了观察和统计。结果表明:不同橡胶树品种间,圆锥花序上雌花的个数、雌花在花序上的位置分布和结果侧枝上的花序数存在极显著差异。雌花和果实在圆锥花序上的分布规律相似,主要分布在圆锥花序的顶端和下部;结果花序主要分布在结果侧枝的下部,圆锥花序距离树干越远,则花序结果的几率越小。因此,在橡胶树杂交育种时,可以只对相关品种座果率高的结果侧枝相应位置上的花序及花序上相应的雌花进行授粉,而摘掉其余座果率低的花序和雌花,从而提高杂交育种效率和效果。
- 橡胶树 /
- 雌花分布 /
- 座果率 /
- 座果位置 /
- 杂交育种
Abstract: The disciplines of pistillate flower distribution and fruit-set location of six cultivars were investigated in Hevea brasiliensis. Results showed that there were significant differences in the number of pistillate flowers, locations of pistillate flowers on panicles and number of panicles in fruit-set branches among different cultivars. Similar to the distribution of fruits on panicles, pistillate flowers were distributed on the top or lower positions of panicles. Pistillate flowers that produced fruits grew mainly on the lower positions of the fruit-set branches. The pro-bability of fruit-set decreased with distance between panicles and trunk increasing. Thus, based on the disciplines of pistillate flower distribution, fruit-set panicles and fruit, the efficiency of crossbreeding could be improved by pollinating panicles on the fruit-set branches with higher fruit-set rates and synchronously thinning pistillate flowers with lower fruit-set rates.
- Hevea brasiliensis /
- Pistillate flower distribution /
- Fruit-set rate /
- Fruit location /
- Crossbreeding

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参考文献(13)

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橡胶树不同品种雌花分布和座果规律研究

作者简介: 张源源(1989- ),男,硕士研究生,主要从事林木倍性育种与细胞遗传学研究(E-mail:yuanyuanhill@bjfu.edu.cn)。

通讯作者: 康向阳, E-mail: Kangxy@bjfu.edu.cn

计量

出版历程

Distribution of Pistillate Flowers and Disciplines of Fruit-set Success in Rubber Tree (Hevea brasiliensis Muell. Arg.)

计量

出版历程

目录

作者简介:
张源源(1989- ),男,硕士研究生,主要从事林木倍性育种与细胞遗传学研究(E-mail:yuanyuanhill@bjfu.edu.cn)。

通讯作者:
康向阳, E-mail: Kangxy@bjfu.edu.cn