干旱区生态环境知识资源中心(Arid): Seed germination ecology of Conyza sumatrensis populations stemming from different habitats and implications for management

Arid

DOI	10.1371/journal.pone.0260674
	Seed germination ecology of Conyza sumatrensis populations stemming from different habitats and implications for management
	Xu, Yanyun; Ye, Junyong; Khalofah, Ahlam; Zuan, Ali Tan Kee; Ullah, Rehmat; El-Shehawi, Ahmed M.
通讯作者	Ye, JY (corresponding author)，Rural Ind Dev Ctr Liandu Dist, Lishui, Peoples R China. ; Zuan, ATK (corresponding author)，Univ Putra Malaysia, Fac Agr, Dept Land Management, Seri Kembangan, Selangor, Malaysia.
来源期刊	PLOS ONE
ISSN	1932-6203
出版年	2021
卷号	16 期号:12
英文摘要	Conyza sumatrensis (Retz.) E. H. Walker is an obnoxious weed, emerging as an invasive species globally. Seed germination biology of four populations of the species stemming from arid, semi-arid, temperate, and humid regions was determined in this study. Seed germination was recorded under six different environmental cues (i.e., light/dark periods, constant and alternating day and night temperatures, pH, salinity, and osmotic potential levels) in separate experiment for each cue. Populations were main factor, whereas levels of each environmental cue were considered as sub-factor. The impact of seed burial depths on seedling emergence was inferred in a greenhouse pot experiment. Seed germination was recorded daily and four germination indices, i.e., seed germination percentage, mean germination time, time to reach 50% germination, and mean daily germination were computed. Tested populations and levels of different environmental cues had significant impact on various seed germination indices. Overall, seeds stemming from arid and semi-arid regions had higher seed germination potential under stressful and benign environmental conditions compared to temperate and humid populations. Seed of all populations required a definite light period for germination and 12 hours alternating light and dark period resulted in the highest seed germination. Seed germination of all populations occurred under 5-30 degrees C constant and all tested alternate day and night temperatures. However, the highest seed germination was recorded under 20 degrees C. Seeds of arid and semi-arid populations exhibited higher germination under increased temperature, salinity and osmotic potential levels indicating that maternal environment strongly affected germination traits of the tested populations. The highest seed germination of the tested populations was noted under neutral pH, while higher and lower pH than neutral had negative impact on seed germination. Arid and semi-arid populations exhibited higher seed germination under increased pH compared to temperate and humid populations. Seed burial depth had a significant effect on the seedling emergence of all tested populations. An initial increase was noted in seedling emergence percentage with increasing soil depth. However, a steep decline was recorded after 2 cm seed burial depth. These results indicate that maternal environment strongly mediates germination traits of different populations. Lower emergence from >4 cm seed burial depth warrants that deep burial of seeds and subsequent zero or minimum soil disturbance could aid the management of the species in agricultural habitats. However, management strategies should be developed for other habitats to halt the spread of the species.
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000735299000090
WOS关键词	ENVIRONMENTAL-FACTORS ; RANGE EXPANSION ; BONARIENSIS ; WEED ; CONSERVATION ; EMERGENCE ; AGRICULTURE ; TEMPERATURE ; CANADENSIS ; TILLAGE
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/375696
作者单位	[Xu, Yanyun] Lishui Univ, Coll Ecol, Lishui, Peoples R China; [Ye, Junyong] Rural Ind Dev Ctr Liandu Dist, Lishui, Peoples R China; [Khalofah, Ahlam] King Khalid Univ, Fac Sci, Dept Biol, Abha, Saudi Arabia; [Khalofah, Ahlam] King Khalid Univ, Res Ctr Adv Mat Sci RCAMS, Abha, Saudi Arabia; [Zuan, Ali Tan Kee] Univ Putra Malaysia, Fac Agr, Dept Land Management, Seri Kembangan, Selangor, Malaysia; [Ullah, Rehmat] Soil & Water Testing Lab Res, Dera Ghazi Khan, Punjab, Pakistan; [El-Shehawi, Ahmed M.] Taif Univ, Coll Sci, Dept Biotechnol, At Taif, Saudi Arabia
推荐引用方式 GB/T 7714	Xu, Yanyun,Ye, Junyong,Khalofah, Ahlam,et al. Seed germination ecology of Conyza sumatrensis populations stemming from different habitats and implications for management[J],2021,16(12).
APA	Xu, Yanyun,Ye, Junyong,Khalofah, Ahlam,Zuan, Ali Tan Kee,Ullah, Rehmat,&El-Shehawi, Ahmed M..(2021).Seed germination ecology of Conyza sumatrensis populations stemming from different habitats and implications for management.PLOS ONE,16(12).
MLA	Xu, Yanyun,et al."Seed germination ecology of Conyza sumatrensis populations stemming from different habitats and implications for management".PLOS ONE 16.12(2021).