干旱区生态环境知识资源中心(Arid): Seed germination behavior of five Resedaceae species from arid Arabian desert: gibberellic acid and light effects

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DOI	10.1080/11263504.2019.1674397
	Seed germination behavior of five Resedaceae species from arid Arabian desert: gibberellic acid and light effects
	Gairola, Sanjay 1; El-Keblawy, Ali 2
通讯作者	Gairola, Sanjay
来源期刊	PLANT BIOSYSTEMS
ISSN	1126-3504
EISSN	1724-5575
出版年	2020
卷号	154 期号:5 页码:635-642
英文摘要	Light and growth-promoting compounds, such as gibberellic acids (GA(3)), are among the most important factors that can break physiological seed dormancy. Here, we investigate the effects of GA(3) and light on germination of five species of Resedaceae that are known to have different levels of physiological dormancy. Seeds were incubated at 20/30??C in both 12-hr photoperiod and complete darkness. To study the effect of growth hormone on germination, seeds were soaked for 24?h in different concentrations of GA(3) before sowing. The annuals (Reseda aucheri and Oligomeris linifolia) and the perennial Ochradenus arabicus had deep physiological dormancy, and exogenous application of GA(3) enhanced their germination in the light, but not in darkness; few or no seeds germinated in the dark in these species. Ochradenus aucheri and O. baccatus had intermediate and non-deep dormancy, respectively, and application of GA(3) enhanced their germination in both light and darkness. Germination of the annual species was much slower than that of the shrubby perennials. Overall, these results indicate that conditions under which seed developed, matured and stored on maternal plants as well as incubation conditions should be taken into consideration when assessing germination behavior of the perennial species of Resedaceae.
英文关键词	Germination photoblastism dormancy seed bank seed size Arabian deserts
类型	Article
语种	英语
国家	U Arab Emirates
收录类别	SCI-E
WOS记录号	WOS:000490914900001
WOS关键词	DORMANCY REGULATING CHEMICALS ; MATERNAL HABITAT ; ABSCISIC-ACID ; TEMPERATURE ; PLANT ; SALINITY ; SALT ; L. ; REQUIREMENTS ; MATURATION
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218022
作者单位	1.Sharjah Res Acad, Sharjah Seed Bank & Herbarium, Sharjah, U Arab Emirates; 2.Univ Sharjah, Fac Sci, Dept Appl Biol, Sharjah, U Arab Emirates
推荐引用方式 GB/T 7714	Gairola, Sanjay,El-Keblawy, Ali. Seed germination behavior of five Resedaceae species from arid Arabian desert: gibberellic acid and light effects[J],2020,154(5):635-642.
APA	Gairola, Sanjay,&El-Keblawy, Ali.(2020).Seed germination behavior of five Resedaceae species from arid Arabian desert: gibberellic acid and light effects.PLANT BIOSYSTEMS,154(5),635-642.
MLA	Gairola, Sanjay,et al."Seed germination behavior of five Resedaceae species from arid Arabian desert: gibberellic acid and light effects".PLANT BIOSYSTEMS 154.5(2020):635-642.