Effects of salinity and temperature on tuber sprouting and growth of Schoenoplectus nipponicus

doi:10.1002/ecs2.3448

	Effects of salinity and temperature on tuber sprouting and growth of Schoenoplectus nipponicus
	Tang, Haoran 1,2; Bai, Jiangshan 1,2; Chen, Fangyuan 1,2; Liu, Ying 3; Lou, Yanjing 2
刊名	ECOSPHERE
	2021-03-01
卷号	12 期号:3 页码:15
关键词	biomass bulbous sedge climate warming clonal reproduction functional traits propagation salt marsh soil salinization
ISSN号	2150-8925
DOI	10.1002/ecs2.3448
通讯作者	Lou, Yanjing(louyj@iga.ac.cn)
英文摘要	In a scenario of climate change and intensive land-use change, the issue of salt marsh degradation caused by global warming and soil salinization is becoming more serious. A climate chamber experiment was conducted to examine the responses of tuber sprouting and seedling growth of Schoenoplectus nipponicus to variations in the temperature regimes (20/10, 25/15, 30/20 and 35/25 degrees C; 12-h light/dark 12-h photoperiod) and different salt concentrations (0, 50, 75, and 100 mmol/L salinity). Results showed that the final sprouting percentage decreased with the increase in salinity and increased with the rising temperature. Salinity lower than 50 mmol/L was the most favorable for tuber sprouting. Under high salinity (75 and 100 mmol/L salinity), the inhibition of tuber sprouting at 20/10 degrees C was greater than other temperature regimes. Along the temperature gradients, both plant height and leaf N content increased, and root length decreased under non-saline-alkali conditions, while plant height, leaf N content, and root length declined significantly under salt stress (50, 75, and 100 mmol/L salinity). With the increase in temperature, the production of tubers under the control treatments was enhanced significantly, but that under salt stress declined significantly. Under 0 mmol/L salinity, the accumulation of biomass in various organs increased with rising temperature. Biomass accumulation increased first and then declined for plants grown under salt stress, with a peak value of 25/15 degrees C. Root: shoot ratio was reduced significantly under the combination of high salt stress (75 and 100 mmol/L salinity) and high temperatures (30/20 degrees C and 35/25 degrees C). Our study will contribute to a better understanding of the influence of climate warming and increasing serious human disturbances on this important wetland species.
资助项目	National Key Research and Development Project of China[2016YFC0500403] ; National Natural Science Foundation of China[41671109] ; National Natural Science Foundation of China[U19A2042] ; Natural Science Foundation of Jilin Province, China[20190201281JC]
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	WILEY
WOS记录号	WOS:000636318200036
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/13387]
专题	中国科学院重庆绿色智能技术研究院
通讯作者	Lou, Yanjing
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130102, Peoples R China 3.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
推荐引用方式 GB/T 7714	Tang, Haoran,Bai, Jiangshan,Chen, Fangyuan,et al. Effects of salinity and temperature on tuber sprouting and growth of Schoenoplectus nipponicus[J]. ECOSPHERE,2021,12(3):15.
APA	Tang, Haoran,Bai, Jiangshan,Chen, Fangyuan,Liu, Ying,&Lou, Yanjing.(2021).Effects of salinity and temperature on tuber sprouting and growth of Schoenoplectus nipponicus.ECOSPHERE,12(3),15.
MLA	Tang, Haoran,et al."Effects of salinity and temperature on tuber sprouting and growth of Schoenoplectus nipponicus".ECOSPHERE 12.3(2021):15.