干旱区生态环境知识资源中心(Arid): Germination response of Arabian desert species to gibberellic acid and potassium nitrate seed treatment

Arid

DOI	10.1080/11263504.2019.1686079
	Germination response of Arabian desert species to gibberellic acid and potassium nitrate seed treatment
	Bhatt, Arvind 1; Caron, Maria Mercedes 2; Gallacher, David 3; Bhat, N. R.1
通讯作者	Bhatt, Arvind
来源期刊	PLANT BIOSYSTEMS
ISSN	1126-3504
EISSN	1724-5575
出版年	2020
卷号	154 期号:5 页码:737-745
英文摘要	Desert plant species commonly use seed dormancy to prevent germination during unfavorable environmental conditions and thus increase the probability of seedling survival. Seed dormancy presents a challenge for restoration ecology, particularly in desert species for which our knowledge of dormancy regulation is limited. In the present study the effect of gibberellic acid (GA(3)) and potassium nitrate (KNO3) on seed dormancy release was investigated on eight Arabian desert species. Both treatments significantly enhanced the germination of most species tested. GA(3) was more effective than KNO3 in enhancing germination percentage, reducing mean germination time and synchronizing the germination in most of the studied species. Light requirement during germination was species-specific, but in general the presence of light promoted germination more effectively when combined with KNO3 and GA(3). The wide variation in dormancy and germination requirements among the tested species is indicative of distinct germination niches, which might assist their co-existence in similar habitat/environmental conditions. Seed pre-treatments that optimize germination in this habitat must therefore be assessed for individual species to improve the outcomes of ecological restoration.
英文关键词	Desert dormancy GA(3) KNO3 germination
类型	Article
语种	英语
国家	Kuwait ; Argentina ; Australia
收录类别	SCI-E
WOS记录号	WOS:000495541500001
WOS关键词	ABSCISIC-ACID ; DORMANCY-BREAKING ; PLANTS ; MODEL ; REQUIREMENTS ; TEMPERATURE ; STRATEGIES ; DIVERSITY ; CHEMICALS ; EMERGENCE
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
EI主题词	2019-11-09
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310801
作者单位	1.Kuwait Inst Sci Res, Safat, Kuwait; 2.Univ Nacl Salta, CONICET, Fac Ciencias Nat, Lab Invest Bot LABIBO, Salta, Argentina; 3.Univ Sydney, Plant Breeding Inst, Narrabri, NSW, Australia
推荐引用方式 GB/T 7714	Bhatt, Arvind,Caron, Maria Mercedes,Gallacher, David,et al. Germination response of Arabian desert species to gibberellic acid and potassium nitrate seed treatment[J],2020,154(5):737-745.
APA	Bhatt, Arvind,Caron, Maria Mercedes,Gallacher, David,&Bhat, N. R..(2020).Germination response of Arabian desert species to gibberellic acid and potassium nitrate seed treatment.PLANT BIOSYSTEMS,154(5),737-745.
MLA	Bhatt, Arvind,et al."Germination response of Arabian desert species to gibberellic acid and potassium nitrate seed treatment".PLANT BIOSYSTEMS 154.5(2020):737-745.