干旱区生态环境知识资源中心(Arid): Effect of Salinity and Temperature on the Seed Germination and Seedling Growth of Desert Forage Grass Lasiurus scindicus Henr.

Arid

DOI	10.3390/su14148387
	Effect of Salinity and Temperature on the Seed Germination and Seedling Growth of Desert Forage Grass Lasiurus scindicus Henr.
	Malik, Jahangir A.; AlQarawi, AbdulAziz A.; AlZain, Mashail N.; Dar, Basharat A.; Habib, Muhammad M.; Ibrahim, Salah Nasser S.
通讯作者	AlZain, MN
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2022
卷号	14 期号:14
英文摘要	Lasiurus scindicus Henr. is one of the most important forage grass species of the Arabian deserts. Temperature and soil salinity are well known to influence the germination and seedling development of various forage species. Therefore, in the current study, the effect of temperature and salinity and their interaction on the germination parameters, seedling growth, and physiological parameters of L. scindicus were evaluated. For this reason, L. scindicus seeds were treated with five salinity concentrations (i.e., 0, 50, 100, 150, and 200 mM NaCl) and incubated at two temperature levels (T1 = 25/20 degrees C, D/N and T2 = 35/30 degrees C, D/N). The results indicated that the salinity and temperature significantly affected the germination indices, seedling growth parameters, chlorophyll, and proline content. The highest germination percentage (GP; 90%) was recorded in the non-saline-treated seeds incubated at T1. The seeds at T2 under the non-saline treatment exhibited an increased germination rate (GR = 17.5%). The interactive effect of salinity and temperature on germination and growth parameters was significant, indicating that the germination response to salinity depends on temperature. The germination of seeds treated with 200 mM NaCl was completely inhibited at both temperatures T1 and T2. However, the ungerminated seeds at both T1 (85%) and T2 (78%) restored their germination abilities after they were transferred to distilled water. Also, the seed vigor index (SVI) constantly showed a decline with the increasing salinity levels especially at T2, which was lowest when seeds were treated with 150 mM salinity. Growth parameters (i.e., aRL, aSL, RDW, SDW, SB, and SLA) and the chlorophyll content showed a similar pattern as that of germination. However, the proline content (shoot proline and root proline) showed a progressive increase with increasing salinity and temperature. All of these characteristics indicate that L. scindicus seeds were not able to germinate under extreme salinity and temperature conditions but remained viable in a state of enforced dormancy. This is most likely an important adaptive strategy of this species for survival in the high-saline changing habitats of the arid region of Saudi Arabia, and thus, it can be an excellent choice for restoring degraded rangelands and salinity-inflicted abundant farmlands for forage agriculture.
英文关键词	Lasiurus scindicus salinity temperature seed germination chlorophyll proline restoration
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000832244100001
WOS关键词	RICE ORYZA-SATIVA ; SALT TOLERANCE ; PROLINE ACCUMULATION ; HETEROMORPHIC SEEDS ; SOIL-SALINITY ; GAS-EXCHANGE ; HEAT-STRESS ; RESPONSES ; LIGHT ; CULTIVARS
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394612
推荐引用方式 GB/T 7714	Malik, Jahangir A.,AlQarawi, AbdulAziz A.,AlZain, Mashail N.,et al. Effect of Salinity and Temperature on the Seed Germination and Seedling Growth of Desert Forage Grass Lasiurus scindicus Henr.[J],2022,14(14).
APA	Malik, Jahangir A.,AlQarawi, AbdulAziz A.,AlZain, Mashail N.,Dar, Basharat A.,Habib, Muhammad M.,&Ibrahim, Salah Nasser S..(2022).Effect of Salinity and Temperature on the Seed Germination and Seedling Growth of Desert Forage Grass Lasiurus scindicus Henr..SUSTAINABILITY,14(14).
MLA	Malik, Jahangir A.,et al."Effect of Salinity and Temperature on the Seed Germination and Seedling Growth of Desert Forage Grass Lasiurus scindicus Henr.".SUSTAINABILITY 14.14(2022).