干旱区生态环境知识资源中心(Arid): Inter-population variabilities in seed mass and germination of Panicum turgidum and Pennisetum divisum on the desert of Kuwait

Arid

DOI	10.1007/s40333-019-0017-6
	Inter-population variabilities in seed mass and germination of Panicum turgidum and Pennisetum divisum on the desert of Kuwait
	Bhatt, Arvind 1; Bhat, Narayana R.1; Al-Nasser, Afaf 1; Caron, Maria M.2; Santo, Andrea
通讯作者	Bhatt, Arvind
来源期刊	JOURNAL OF ARID LAND
ISSN	1674-6767
EISSN	2194-7783
出版年	2020
卷号	12 期号:1 页码:144-153
英文摘要	Understanding variability in seed germination among populations is essential for planning an effective germplasm collection for restoration and conservation purposes. The knowledge of germination and dormancy patterns among populations of desert grasses is crucial for determining the potential of the species and populations to be used for restoration and conservation as well as forage production. Variability in seed germination of Panicum turgidum Forssk and Pennisetum divisum (Gmel.) Henr. on the desert of Kuwait was evaluated in different populations in May 2017. Experiment of seed germination (25 seeds and 4 replicates) was conducted for each population at night/day temperatures of 15 degrees C/20 degrees C and 20 degrees C/30 degrees C under the following light condition: continuous darkness or 12 h/12 h light/dark. Results showed that seed masses of both species strongly varied according to their seed provenances, and both species produced heavier seeds in population with a higher soil electrical conductivity. Seed germination percentage considerably varied between two species, and the variation in P. turgidum was greater (17%-49%) than that of P. divisum (72%-93%). Germination percentage in P. turgidum was greater at high temperature (20 degrees C/30 degrees C) than at low temperature (15 degrees C/20 degrees C). However, temperature regimes had no effect on germination percentage of P. divisum seeds. Mean germination time of both species exhibited significant inter-population variability. This result is especially relevant to assure the selection of the best population of each species and the regeneration success of the species. Besides this, inter-population variability also provides valuable information for enhancing our understanding of the mechanisms that regulate seed germination and how they might be related to seed provenance.
英文关键词	desert grass seed germination inter-population variability seed provenance seed dormancy
类型	Article
语种	英语
国家	Kuwait ; Argentina
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000492266300001
WOS关键词	MATERNAL SALINITY ; FORAGE GRASSES ; SALT TOLERANCE ; DORMANCY ; TEMPERATURE ; ENVIRONMENT ; RANGELANDS ; CLIMATE ; GROWTH ; PLANTS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
EI主题词	2019-10-11
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310272
作者单位	1.Kuwait Inst Sci Res, Safat 24885, Kuwait; 2.Univ Salta, Fac Nat Sci, CONICET, Lab Bot Res LABIBO, RA-4400 Salta, Argentina
推荐引用方式 GB/T 7714	Bhatt, Arvind,Bhat, Narayana R.,Al-Nasser, Afaf,et al. Inter-population variabilities in seed mass and germination of Panicum turgidum and Pennisetum divisum on the desert of Kuwait[J],2020,12(1):144-153.
APA	Bhatt, Arvind,Bhat, Narayana R.,Al-Nasser, Afaf,Caron, Maria M.,&Santo, Andrea.(2020).Inter-population variabilities in seed mass and germination of Panicum turgidum and Pennisetum divisum on the desert of Kuwait.JOURNAL OF ARID LAND,12(1),144-153.
MLA	Bhatt, Arvind,et al."Inter-population variabilities in seed mass and germination of Panicum turgidum and Pennisetum divisum on the desert of Kuwait".JOURNAL OF ARID LAND 12.1(2020):144-153.