干旱区生态环境知识资源中心(Arid): Perianth and abiotic factors regulate seed germination of Haloxylon stocksii-A cash crop candidate for degraded saline lands

Arid

DOI	10.1002/ldr.3334
	Perianth and abiotic factors regulate seed germination of Haloxylon stocksii-A cash crop candidate for degraded saline lands
	Rasheed, Aysha; Hameed, Abdul; Gul, Bilquees; Khan, Muhammad Ajmal
通讯作者	Gul, Bilquees
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2019
卷号	30 期号:12 页码:1468-1478
英文摘要	Haloxylon stocksii, a common succulent halophyte of saline flats in Pakistan and adjacent countries, is utilized as forage, washing soda, and medicines by the local people. In addition, its cultivation can also prevent land degradation by erosion and salinity. Given that information about its seed ecology is limited, this study aimed to unveil the germination requirements of H. stocksii seeds. Seed morpho-physical features and effects of perianth persistence, salinity (0-500-mM NaCl), photoperiod (12 hr light/12 hr dark and 24 hr dark), thermoperiod (10/20 degrees C, 15/25 degrees C, 20/30 degrees C, and 25/35 degrees C), and osmotic stress (0 to -4.29 MPa) on germination and recovery were studied. Presence of perianth caused reductions both in imbibition and germination compared to seeds with perianth removed. Seeds germinated optimally under moderate (20/30 degrees C) than lower (10/20 degrees C and 15/25 degrees C) and higher (25/35 degrees C) temperatures. Under 24 hr dark seed germination was similar to 20% lower than that in 12-hr photoperiod at 20/30 degrees C and in distilled water. NaCl increment decreased germination, and only similar to 20% seeds germinated in the highest NaCl concentration. Ungerminated seeds, when shifted from salt solution to distilled water, showed high recovery of germination. Polyethylene glycol treatment also reduced germination, which was comparable with NaCl treatments. However, polyethylene glycol-treated seeds showed low recovery, unlike NaCl-treated seeds. Our data unveil that seeds of H. stocksii germinate optimally upon removal of perianth, under moderate temperature, in absence of salinity and/or osmotic stresses. This study thus provides essential baseline information for mass-scale cultivation and conservation of H. stocksii in degraded arid-saline areas.
英文关键词	drought perianth photoperiod salinity seed germination temperature
类型	Article
语种	英语
国家	Pakistan
收录类别	SCI-E
WOS记录号	WOS:000475471300006
WOS关键词	HALOPEPLIS-PERFOLIATA ; RECOVERY RESPONSES ; ION ACCUMULATION ; SODIUM-CHLORIDE ; TEMPERATURE ; HALOPHYTE ; GROWTH ; LIGHT ; SALSOLA ; STRATEGIES
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217470
作者单位	Univ Karachi, ISHU, Karachi 75270, Pakistan
推荐引用方式 GB/T 7714	Rasheed, Aysha,Hameed, Abdul,Gul, Bilquees,et al. Perianth and abiotic factors regulate seed germination of Haloxylon stocksii-A cash crop candidate for degraded saline lands[J],2019,30(12):1468-1478.
APA	Rasheed, Aysha,Hameed, Abdul,Gul, Bilquees,&Khan, Muhammad Ajmal.(2019).Perianth and abiotic factors regulate seed germination of Haloxylon stocksii-A cash crop candidate for degraded saline lands.LAND DEGRADATION & DEVELOPMENT,30(12),1468-1478.
MLA	Rasheed, Aysha,et al."Perianth and abiotic factors regulate seed germination of Haloxylon stocksii-A cash crop candidate for degraded saline lands".LAND DEGRADATION & DEVELOPMENT 30.12(2019):1468-1478.