锁阳种子休眠与萌发特性的初步研究

干旱区研究 ›› 2011, Vol. 28 ›› Issue (4): 655-659.

锁阳种子休眠与萌发特性的初步研究

董松林¹, 陈年来¹, 张勇^1,2, 李彩霞², 高海宁²

1. 甘肃农业大学资源与环境学院, 甘肃兰州 730070;
2. 河西学院生命科学与工程系, 甘肃张掖 734000

收稿日期:2010-10-14 修回日期:2011-01-28 出版日期:2011-08-25 发布日期:2011-09-06
作者简介:董松林(1986-),男,甘肃兰州人,在读硕士,研究方向为植物生理生态.E-mail: djs61134@163.com
基金资助:
国家自然科学基金(30960043)项目资助

Preliminary Study on Dormancy and Germination of Cynomorium songaricum Seed

DONG Song-lin¹, CHEN Nian-lai¹, ZHANG Yong^1,2, LI Cai-xia², GAO Hai-ning²

1. College of Resources and Environment, Gansu Agricultural University, Lanzhou 730070, China;
2. Department of Life Science and Engineering, Hexi College, Zhangye 734000, China

Received:2010-10-14 Revised:2011-01-28 Published:2011-08-25 Online:2011-09-06

摘要/Abstract

摘要： 为了解锁阳(Cynomorium songaricum)寄生生长特性,使用物理方法和化学方法对其种子进行萌发诱导处理,观察萌发情况。结果表明:锁阳种子较小,成熟的种胚发育不完全,萌发前后处于球形原胚阶段。试验结果证明,锁阳种子萌发的启动,需有来自寄主根中的某种萌发刺激信号;外源赤霉素(GA₃)及乙烯溶液对种子休眠的破除具有作用。

关键词: 锁阳(Cynomorium songaricum), 寄生植物, 种子, 萌发特性, 休眠

Abstract: In order to understand the parasitic property of Cynomorium songaricum, the dormancy and germination properties of C. songaricum seeds are researched. The seed germination was promoted with both physical and chemical ways. The results show that the C. songaricum seeds are small, and the embryo of matured seeds develops incompletely and at the globular proembryo stage all the time before and after germination. The results testified that the germination of C. songaricum seeds need a certain stimulating signal form the host roots; exogenous GA₃ and ethylene solution have a function of breaking the dormancy of C. songaricum seeds.

Key words: Cynomorium songaricum, parasitic plant, seed, germination property, dormancy

中图分类号:

Q945.35

董松林, 陈年来, 张勇, 李彩霞, 高海宁. 锁阳种子休眠与萌发特性的初步研究[J]. 干旱区研究, 2011, 28(4): 655-659.

DONG Song-lin, CHEN Nian-lai, ZHANG Yong, LI Cai-xia, GAO Hai-ning. Preliminary Study on Dormancy and Germination of Cynomorium songaricum Seed[J]. , 2011, 28(4): 655-659.

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