干旱区生态环境知识资源中心(Arid): Chlorophyll fluorescence, physiology, and yield of winter wheat under different irrigation and shade durations during the grain-filling stage

Arid

DOI	10.3389/fpls.2024.1396929
	Chlorophyll fluorescence, physiology, and yield of winter wheat under different irrigation and shade durations during the grain-filling stage
	Naseer, Muhammad Asad; Hussain, Sadam; Mukhtar, Ahmed; Rui, Qian; Ru, Guo; Ahmad, Haseeb; Zhang, Zhi Qin; Shi, Li Bo; Asad, Muhammad Shoaib; Chen, Xiaoli; Zhou, Xun Bo; Ren, Xiaolong
通讯作者	Naseer, MA ; Zhou, XB
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2024
卷号	15
英文摘要	The uneven spatial and temporal distribution of light resources and water scarcity during the grain-filling stage pose significant challenges for sustainable crop production, particularly in the arid areas of the Loess Plateau in Northwest China. This study aims to investigate the combined effects of drought and shading stress on winter wheat growth and its physio-biochemical and antioxidative responses. Wheat plants were subjected to different drought levels- full irrigation (I100), 75% of full irrigation (I75), 50% of full irrigation (I50), and 25% of full irrigation (I25), and shading treatments - 12, 9, 6, 3 and 0 days (SD12, SD9, SD6, SD3, and CK, respectively) during the grain-filling stage. The effects of drought and shading treatments reduced yield in descending order, with the most significant reductions observed in the SD12 and I25 treatments. These treatments decreased grain yield, spikes per plant, 1000-grain weight, and spikelets per spike by 160.67%, 248.13%, 28.22%, and 179.55%, respectively, compared to the CK. Furthermore, MDA content and antioxidant enzyme activities exhibited an ascending trend with reduced irrigation and longer shading durations. The highest values were recorded in the I75 and SD12 treatments, which increased MDA, SOD, POD, and CAT activities by 65.22, 66.79, 65.07 and 58.38%, respectively, compared to the CK. The Pn, E, Gs, and iCO2 exhibited a decreasing trend (318.14, 521.09, 908.77, and 90.85%) with increasing shading duration and decreasing irrigation amount. Drought and shading treatments damage leaf chlorophyll fluorescence, decreasing yield and related physiological and biochemical attributes.
英文关键词	winter wheat grain-filling shading drought photochemistry photosynthesis
类型	Article
语种	英语
开放获取类型	gold, Green Accepted
收录类别	SCI-E
WOS记录号	WOS:001288880100001
WOS关键词	DROUGHT STRESS ; PHOTOSYNTHETIC CHARACTERISTICS ; LIGHT-INTENSITY ; ENZYME-ACTIVITIES ; HIGH-TEMPERATURE ; USE EFFICIENCY ; WATER ; PLASTICITY ; RESPONSES ; TOLERANCE
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/2XILL650/403871
推荐引用方式 GB/T 7714	Naseer, Muhammad Asad,Hussain, Sadam,Mukhtar, Ahmed,et al. Chlorophyll fluorescence, physiology, and yield of winter wheat under different irrigation and shade durations during the grain-filling stage[J],2024,15.
APA	Naseer, Muhammad Asad.,Hussain, Sadam.,Mukhtar, Ahmed.,Rui, Qian.,Ru, Guo.,...&Ren, Xiaolong.(2024).Chlorophyll fluorescence, physiology, and yield of winter wheat under different irrigation and shade durations during the grain-filling stage.FRONTIERS IN PLANT SCIENCE,15.
MLA	Naseer, Muhammad Asad,et al."Chlorophyll fluorescence, physiology, and yield of winter wheat under different irrigation and shade durations during the grain-filling stage".FRONTIERS IN PLANT SCIENCE 15(2024).