干旱区生态环境知识资源中心(Arid): Exogenous application of silicon improves the performance of wheat under terminal heat stress by triggering physio-biochemical mechanisms

Arid

DOI	10.1038/s41598-021-02594-4
	Exogenous application of silicon improves the performance of wheat under terminal heat stress by triggering physio-biochemical mechanisms
	Mustafa, Talha; Sattar, Abdul; Sher, Ahmad; Ul-Allah, Sami; Ijaz, Muhammad; Irfan, Muhammad; Butt, Madiha; Cheema, Mumtaz
通讯作者	Ul-Allah, S (corresponding author), Bahauddin Zakariya Univ, Coll Agr, Bahadur Sub Campus Layyah, Layyah, Pakistan. ; Cheema, M (corresponding author), Mem Univ Newfoundland, Sch Sci & Environm, Grenfell Campus, Corner Brook, NB A2H 5G4, Canada.
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2021
卷号	11 期号:1
英文摘要	Due to climate change, temperature in late February and early March raised up which cause heat stress at reproductive stage (terminal growth phase of wheat crop) which has become the major causative factor towards low wheat production in arid and semiarid regions. Therefore; strategies need to be adopted for improving terminal heat stress tolerance in wheat. In this study, we assessed whether foliar application of silicon (Si) (2 and 4 mM) at terminal growth phase i.e. heading stage of wheat imposed to heat stress (37 +/- 2 degrees C) under polythene tunnel could improve the performance of wheat. Results of the study revealed that heat stress significantly reduced the photosynthetic pigments (chlorophyll a, b and a + b and carotenoids) leading to a lower grain yield. However, a 4 mM Si application (foliar applied) at heading stage prominently increased the chlorophyll a, b and a + b and carotenoids of flag leaf by improving the activities of enzymatic antioxidants (catalase, peroxidase and superoxide dismutase) and osmoprotectants (soluble sugar protein and proline) under terminal heat stress. Improvements in the performance of wheat (chlorophyll contents, carotenoids, soluble sugar and proteins and proline and yield) with foliar application of Si were also observed under control conditions. Correlation analysis revealed strong association (r > 0.90) of chlorophyll contents and carotenoids with grain and biological yield. Negative correlation (-0.81 < r > -0.63) of physio-biochemical components (antioxidants, proline, soluble sugars and proteins) with yield revealed that under heat stress these components produced in more quantities to alleviate the effects of heat, and Si application also improved these physio biochemical components. In crux, foliar application of Si alleviates the losses in the performance of wheat caused by terminal heat stress by improving the antioxidant mechanism and production of osmoprotectants.
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000724479000016
WOS关键词	TRITICUM-AESTIVUM L. ; DROUGHT STRESS ; OXIDATIVE STRESS ; HIGH-TEMPERATURE ; NITRIC-OXIDE ; ORYZA-SATIVA ; GRAIN-YIELD ; PLANTS ; GROWTH ; TOLERANCE
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/373906
作者单位	[Mustafa, Talha; Sattar, Abdul; Sher, Ahmad; Ul-Allah, Sami; Ijaz, Muhammad; Butt, Madiha] Bahauddin Zakariya Univ, Coll Agr, Bahadur Sub Campus Layyah, Layyah, Pakistan; [Irfan, Muhammad] Bahauddin Zakariya Univ, Dept Agron, Multan, Pakistan; [Cheema, Mumtaz] Mem Univ Newfoundland, Sch Sci & Environm, Grenfell Campus, Corner Brook, NB A2H 5G4, Canada
推荐引用方式 GB/T 7714	Mustafa, Talha,Sattar, Abdul,Sher, Ahmad,et al. Exogenous application of silicon improves the performance of wheat under terminal heat stress by triggering physio-biochemical mechanisms[J],2021,11(1).
APA	Mustafa, Talha.,Sattar, Abdul.,Sher, Ahmad.,Ul-Allah, Sami.,Ijaz, Muhammad.,...&Cheema, Mumtaz.(2021).Exogenous application of silicon improves the performance of wheat under terminal heat stress by triggering physio-biochemical mechanisms.SCIENTIFIC REPORTS,11(1).
MLA	Mustafa, Talha,et al."Exogenous application of silicon improves the performance of wheat under terminal heat stress by triggering physio-biochemical mechanisms".SCIENTIFIC REPORTS 11.1(2021).