干旱区生态环境知识资源中心(Arid): Drought-Tolerance Screening of Date Palm Cultivars under Water Stress Conditions in Arid Regions

Arid

DOI	10.3390/agronomy13112811
	Drought-Tolerance Screening of Date Palm Cultivars under Water Stress Conditions in Arid Regions
	Ali-Dinar, Hassan; Munir, Muhammad; Mohammed, Maged
通讯作者	Mohammed, M
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2023
卷号	13 期号:11
英文摘要	Drought stress poses a considerable challenge to agriculture sustainability in arid regions. Water scarcity severely affects date palm growth and productivity in these regions. However, as water resources become increasingly scarce in arid regions, understanding the drought tolerance of date palm cultivars becomes imperative for developing drought-resistant cultivars and optimizing irrigation water usage for sustainable agriculture. This research examines the impact of different drought stress levels based on evapotranspiration (ETc), i.e., 40%, 60%, 80%, and 100% ETc, and time intervals (0, 6, 12, 18, and 24 months) on leaf growth, net photosynthesis, chlorophyll a and b content, and leaf relative water content (LRWC) of four prominent date palm cultivars, Khalas, Barhee, Hilali, and Ashrasee. In addition, the study also examines the effects of drought stress on dry weight, potassium and calcium content of leaf, stem, and root, and proline content in fresh leaves of these four cultivars. A solar-powered drip irrigation system with automated time-based irrigation scheduling was used to accurately control the irrigation water amount. To real-time estimate ETc in the study area, meteorological data were collected using a cloud-based IoT system. The findings of this study revealed that severe drought conditions (40 and 60 % ETc) significantly reduced leaf growth, plant dry biomass, and physiological and biochemical attributes; however, date palm cultivars can be grown under moderate drought conditions (80% ETc) with minimal effect on phenotypic, physiological, and biochemical traits to conserve water. The study also revealed that the drought-related characteristics decreased gradually with an increase in water stress time over 24 months. Comparing the date palm cultivars revealed that the Khalas and Barhee cultivars are more drought-tolerant, followed by Hilali, while Ashrasee is susceptible. The study elucidated a water conservation strategy employed in response to drought-induced stress based on the physiological and morphological parameters of date palm cultivars. It provides valuable insights into irrigation practices in arid regions. However, future studies can be focused on other nondestructive innovative techniques such as pulse-amplitude-modulation (PAM) fluorimetry, infrared radiation (IR), and video imaging system (VIS) methods to identify drought stress in date palms.
英文关键词	dry matter drip irrigation evapotranspiration leaf growth meteorological data physiological traits proline sustainable agriculture water deficit
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001107877900001
WOS关键词	PHOENIX-DACTYLIFERA L. ; PROLINE ACCUMULATION ; MINERAL-NUTRITION ; ABIOTIC STRESS ; ABSCISIC-ACID ; PHYSIOLOGICAL-RESPONSES ; GROWTH ; PLANTS ; PHOTOSYNTHESIS ; METABOLISM
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395247
推荐引用方式 GB/T 7714	Ali-Dinar, Hassan,Munir, Muhammad,Mohammed, Maged. Drought-Tolerance Screening of Date Palm Cultivars under Water Stress Conditions in Arid Regions[J],2023,13(11).
APA	Ali-Dinar, Hassan,Munir, Muhammad,&Mohammed, Maged.(2023).Drought-Tolerance Screening of Date Palm Cultivars under Water Stress Conditions in Arid Regions.AGRONOMY-BASEL,13(11).
MLA	Ali-Dinar, Hassan,et al."Drought-Tolerance Screening of Date Palm Cultivars under Water Stress Conditions in Arid Regions".AGRONOMY-BASEL 13.11(2023).