干旱区生态环境知识资源中心(Arid): Seasonal germination responses of seeds in fruits of the cold desert shrubZygophyllum xanthoxylonburied in the field

Arid

DOI	10.1080/15324982.2020.1763514
	Seasonal germination responses of seeds in fruits of the cold desert shrubZygophyllum xanthoxylonburied in the field
	Wang, Jiao 1; Zhao, Xiaoying 1; Baskin, Carol C.2,3; Wang, Luyao 1; Li, Yanhong 1
通讯作者	Zhao, Xiaoying
来源期刊	ARID LAND RESEARCH AND MANAGEMENT
ISSN	1532-4982
EISSN	1532-4990
出版年	2020
卷号	34 期号:4 页码:435-444
英文摘要	We hypothesized that seeds of the central Asian cold desert shrubZygophyllum xanthoxylonexhibit dormancy cycling in nature, which would help ensure that germination occurs at a favorable time for seedling survival. Fresh mature fruits ofZ. xanthoxylonwere placed on the soil surface and buried at a depth of 3-5 cm in soil in a natural habitat in August 2015. At regular intervals until July 2017, fruits/seeds were taken to the laboratory and evaluated for viability and germination. Fresh seeds in fruits germinated to 22-62% over a range of temperatures. After 6 weeks in the field, seeds on the surface germinated to 72-99% and those in soil to 70-100%. From 12 to 98 weeks, seeds on and in soil germinated to 72-100% at low (15/5 and 20/10 degrees C) temperatures, but germination at high (25/25 and 30/15 degrees C) temperatures was higher in summer than in spring. Seeds in fruits on the soil surface had higher germination percentages than those in the soil, especially at high temperatures. Although about half the seeds were dormant at maturity, they became nondormant in the field during summer. There was a decrease in ability to germinate at high temperatures in spring, especially for seeds in buried fruits, which indicates conditional dormancy/nondormancy cycling. Lack of germination at high temperatures in spring would help delay germination until the onset of the summer rainy season in the desert. Burial of fruits in the soil enhances the formation of a short-lived persistent seed bank.
英文关键词	Cold desert seed burial seed dormancy seed germination shrub Zygophyllum xanthoxylon
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000539364000001
WOS关键词	DORMANCY ; PERSISTENCE ; ECOLOGY ; SOIL
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319165
作者单位	1.Xinjiang Normal Univ, Coll Life Sci, Urumqi 830054, Peoples R China; 2.Univ Kentucky, Dept Biol, Lexington, KY USA; 3.Univ Kentucky, Dept Plant & Soil Sci, Lexington, KY USA
推荐引用方式 GB/T 7714	Wang, Jiao,Zhao, Xiaoying,Baskin, Carol C.,et al. Seasonal germination responses of seeds in fruits of the cold desert shrubZygophyllum xanthoxylonburied in the field[J],2020,34(4):435-444.
APA	Wang, Jiao,Zhao, Xiaoying,Baskin, Carol C.,Wang, Luyao,&Li, Yanhong.(2020).Seasonal germination responses of seeds in fruits of the cold desert shrubZygophyllum xanthoxylonburied in the field.ARID LAND RESEARCH AND MANAGEMENT,34(4),435-444.
MLA	Wang, Jiao,et al."Seasonal germination responses of seeds in fruits of the cold desert shrubZygophyllum xanthoxylonburied in the field".ARID LAND RESEARCH AND MANAGEMENT 34.4(2020):435-444.