中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 4种岩溶山地常见树种种子的萌发特性 山西农业科学 2015 (6) 693-696+699
Position: Home > Articles > Germination Characteristics of Four Kinds of Seed of Karst Mountain Common Tree Species Journal of Shanxi Agricultural Sciences 2015 (6) 693-696+699

4种岩溶山地常见树种种子的萌发特性

作  者：
田小琴;李小永
单  位：
贵州省核桃研究所;贵州省林业调查规划院
关键词：
岩溶山地;萌发特性;种子
摘  要：
以岩溶地区常见树种朴树、火棘、青桐和构树为试验材料,探讨种子的萌发特性,旨在为苗木培育提供技术依据。结果表明,种子吸水率呈现快—慢—快的S型曲线变化,其中,构树的吸水率最大,平均吸水率从大到小排序为构树>朴树>火棘>青桐;火棘的吸水停滞期最短,为5 h;火棘、构树和朴树发芽的最适温度是白天30℃晚上20℃(30/20℃)变温,而青桐是30℃恒温;种子随着PEG溶液浓度增大,发芽率、发芽势、发芽指数和发芽速度总体呈下降趋势;种子发芽过程的水势范围为0~-0.4 MPa,低于-0.4 MPa种子不能发芽。
译  名：
Germination Characteristics of Four Kinds of Seed of Karst Mountain Common Tree Species
作  者：
TIAN Xiao-qin;LI Xiao-yong;Institute of Walnut in Guizhou Province;The Forestry Survey and Planning in Guizhou Province;
关键词：
Karst mountain;;germination characteristics;;seeds
摘  要：
In this article, the common trees in Karst area like Celtis sinesis, Pyracantha forluneana, Firmiana platanifolia and Broussonetia papyrifera were selected as experimental materials. The water absorption of all the four seeds showed fast-slow-fast, like S-curve, the water absorption of Broussonetia papyrifera was the highest, the order of the average water absorption was Broussonetia papyrifera > Celtis sinesis > Pyracantha forluneana > Firmiana platanifolia; the deadtime of water sucking of Pyracantha forluneana was 5 hours, which was the shortest. The optimum temperature for the germination of the seed of Pyracantha forluneana, Broussonetia papyrifera and Celtis sinesis was at a variable temperature of 30/20 ℃, but it was at a constant temperature of 30 ℃ for Firmiana platanifolia. The water stress markedly affected the germination, germinating potential, germination index and speed of germination of seeds of different trees in Karst area, the germination, germinating potential, germination index and speed of germination of seeds of different trees decreased as the concentration of PEG increased. In the process of the germination of the seeds of all kinds of trees, the water potential ranged from 0 MPa to-0.4 MPa, the seeds could not germinate when it belowed-0.4 MPa.

相似文章

导出引用
计量
文章访问数: 12
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46