干旱区生态环境知识资源中心(Arid): Germination asynchrony is increased by dual seed bank presence in two desert perennial halophytes

Arid

DOI	10.1139/cjb-2019-0071
	Germination asynchrony is increased by dual seed bank presence in two desert perennial halophytes
	Bhatt, Arvind 1; Bhat, Narayana R.1; Lozano-Isla, Flavio 2; Gallacher, David 3; Santo, Andrea 4; Batista-Silva, Willian 5; Fernandes, Denise 6; Pompelli, Marcelo F.7
通讯作者	Bhatt, Arvind ; Pompelli, Marcelo F.
来源期刊	BOTANY
ISSN	1916-2790
EISSN	1916-2804
出版年	2019
卷号	97 期号:11 页码:639-649
英文摘要	Maintaining a viable seed bank throughout the germination season is considered very important for plant recruitment in desert environments, where environmental conditions are unpredictable. Seeds from fully matured Seidlitzia rosmarinus Bunge ex Boiss and Halothamnus iraqensis Botsch. were collected in December 2016, then April, June, and September 2017 from both soil-surface and aerial seed banks. Both of the species were selected mainly by their capacity to rehabilitate saline coastal sites. Germination was analyzed under two photoperiods (0 or 12 h light per day), with winged or dewinged perianths. Seidlitzia rosmarinus had a shorter seasonal range in comparison with H. iraqensis (6 and 9 months, respectively), and the presence of a winged perianth reduced the germination rate of both species. A permanent winged perianth significantly inhibited the germination rate in both species. In the absence of perianth, the germination registered in December 2016 was mostly 100%, but declined to around 20% in September 2017. Seeds are thus more likely to germinate after scarification from wind mobilization, and do not require burial. Our results show that seeds of both the aerial and soil banks are transitory, and viable only during the winter months. Taken together, the combination of aerial and soil seed banks has greatly facilitated germination asynchrony in their environmentally unpredictable desert habitat.
英文关键词	desert arid recruitment synchrony perianth
类型	Article
语种	英语
国家	Kuwait ; Peru ; Australia ; Italy ; Brazil
收录类别	SCI-E
WOS记录号	WOS:000495474900006
WOS关键词	PERIANTH COLOR ; SALT STRESS ; LIGHT ; CHENOPODIACEAE ; DORMANCY ; STORAGE ; TIME ; TEMPERATURE ; DYNAMICS ; AERIAL
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
EI主题词	2019-11-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310511
作者单位	1.Kuwait Inst Sci Res, POB 24885, Safat, Kuwait; 2.Plantas Grp KWS, POB 15000, Lima, Peru; 3.Univ Sydney, Plant Breeding Inst, 12656 Newell Highway, Narrabri, NSW 2390, Australia; 4.POB 09047,16-C Via Gladioli St, Cagliari, Italy; 5.Univ Fed Vicosa, Dept Biol Vegetal, POB 36570-900, BR-36570900 Vicosa, MG, Brazil; 6.Inst Fed Catarinense, POB 89160-000, Rio Do Sul, SC, Brazil; 7.Univ Fed Pernambuco, Dept Bot, Lab Ecofisiol Vegetal, POB 50670-901, Recife, PE, Brazil
推荐引用方式 GB/T 7714	Bhatt, Arvind,Bhat, Narayana R.,Lozano-Isla, Flavio,et al. Germination asynchrony is increased by dual seed bank presence in two desert perennial halophytes[J],2019,97(11):639-649.
APA	Bhatt, Arvind.,Bhat, Narayana R..,Lozano-Isla, Flavio.,Gallacher, David.,Santo, Andrea.,...&Pompelli, Marcelo F..(2019).Germination asynchrony is increased by dual seed bank presence in two desert perennial halophytes.BOTANY,97(11),639-649.
MLA	Bhatt, Arvind,et al."Germination asynchrony is increased by dual seed bank presence in two desert perennial halophytes".BOTANY 97.11(2019):639-649.