干旱区生态环境知识资源中心(Arid): 阿拉善荒漠一年生植物种子萌发特性及生态适应性分析

Arid

	阿拉善荒漠一年生植物种子萌发特性及生态适应性分析
其他题名	Seed Germination Characteristics and Ecological Adaption of Annual Plants in Alasha Region
	张继恩; 梁存柱; 付晓玥; 闫建成
ISSN	1003-7578
出版年	2009
卷号	23 期号:2 页码:175-179
中文摘要	对阿拉善荒漠地区主要的一年生植物种子萌发特性和生态适应进行了测定和分析,结果表明:三芒草(Aristida adscenionis)、雾冰藜(Bassia dasyphylla)、猪毛菜(Salsola collina)的种子当年萌发率较高,均超过70%,干、冷藏处理过冬后的萌发率略有下降,但仍超过60%;狗尾草(Setaria viridis)、虎尾草(Chloris virgata)、冠芒草(Pappophorum boreale)种子当年萌发率均在15%以下,狗尾草干藏处理后萌发率下降、虎尾草、冠芒草种子干冷藏处理后,萌发率大幅度上升,表现明显的休眠后熟现象;小画眉草(Eragrostis minor)种子当年萌发率接近30%,但处理后萌发率几乎降至0;虫实(Corispermum declinatum)、灰绿藜(Chenopodium glaucum)种子各种处理的萌发率都在15%以下,特别是灰绿藜种子当年不萌发.与草原区相比,荒漠区一年生植物种子萌发率偏低,萌发进程较缓慢,表现出对荒漠气候的适应性.
英文摘要	The germination characteristics and ecological adaption of 9 kinds of annual plants in Alashan desert region were identified and analyzed. According to the results, the germinant rate of Aristida adscenionis Bassia dasyphylla and Salsola collina was higher. The average germinant rate of the fresh seeds was more than 70%, although the percentage of the seeds with dry storage and cold storage declined a litlle, it was still over 60%. The germination percentage of the fresh seeds of Chloris virgata Setaria viridis and Pappophorum boreale was below 15%, but rose obviously after dry and cold storage except for the dry - stored seeds of Setaria viridis. It was suggestd that afterripe and dormancy existed in the three species. The germination percentage of the fresh seeds of Eragrostis poaeoides was relatively high, which was close to 30%, however, it declined nearly to 0% after being treated. The germination percentage of Corispermum declinatum and Chenopodium glaucum was under 15%, especially the fresh one of Chenopodium glaucum did not germinate. Comparing with the grassland region, the germination percentage of annuals in the desert region tend to be lower, as well as the germinant course is slower in order to adjust to the climate in desert region quickly.
中文关键词	阿拉善荒漠 ; 一年生植物 ; 种子萌发 ; 生态适应
英文关键词	Alashan desert annuals seed germination ecological adaption
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:3583308
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223655
作者单位	内蒙古大学生态与环境科学系, 呼和浩特, 内蒙古 010021, 中国
推荐引用方式 GB/T 7714	张继恩,梁存柱,付晓玥,等. 阿拉善荒漠一年生植物种子萌发特性及生态适应性分析[J],2009,23(2):175-179.
APA	张继恩,梁存柱,付晓玥,&闫建成.(2009).阿拉善荒漠一年生植物种子萌发特性及生态适应性分析.,23(2),175-179.
MLA	张继恩,et al."阿拉善荒漠一年生植物种子萌发特性及生态适应性分析".23.2(2009):175-179.