Abdullah Alrajhi

ORCID: 0000-0002-9785-0452
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Research Areas
  • Flood Risk Assessment and Management
  • Groundwater and Watershed Analysis
  • Hydrology and Watershed Management Studies
  • Wheat and Barley Genetics and Pathology
  • Irrigation Practices and Water Management
  • Wastewater Treatment and Reuse
  • Soil Carbon and Nitrogen Dynamics
  • Legume Nitrogen Fixing Symbiosis
  • Plant Stress Responses and Tolerance
  • Light effects on plants
  • Climate change impacts on agriculture
  • Long-Term Effects of COVID-19
  • Plant-Microbe Interactions and Immunity
  • Polysaccharides and Plant Cell Walls
  • Plant Pathogens and Fungal Diseases
  • RNA and protein synthesis mechanisms
  • Plant Disease Management Techniques
  • CRISPR and Genetic Engineering
  • Genetic Mapping and Diversity in Plants and Animals
  • Plant Micronutrient Interactions and Effects
  • Plant nutrient uptake and metabolism
  • Microplastics and Plastic Pollution
  • Innovations in Aquaponics and Hydroponics Systems
  • COVID-19 and healthcare impacts
  • Plant tissue culture and regeneration

King Saud University
2025

King Abdulaziz City for Science and Technology
2020-2024

University of South Australia
2015-2024

Al Noor Hospitals
2022

Armed Forces Hospital
2022

Controlled Environment Agriculture (CEA) is a method of increasing crop productivity per unit area cultivated land by extending production into the vertical dimension and enabling year-round production. Light emitting diodes (LED) are frequently used as source light energy in CEA systems commonly limiting factor for under conditions. In current study, impact different spectra was compared with use white LED light. The various were white; supplemented ultraviolet b week before harvest; three...

10.3390/plants12030463 article EN cc-by Plants 2023-01-19

Wheat is the main staple food in world, so it backbone of security. Drought not only affects growth and development but also ultimately has a severe impact on overall productivity crop plants. Some bacteria are capable producing exopolysaccharides (EPS) as survival mechanism, along with other metabolites, which help them survive stressful conditions. The present study was conducted aim inducing drought stress tolerance wheat through EPS-producing plant growth-promoting rhizobacteria (PGPR)....

10.3390/agronomy12051140 article EN cc-by Agronomy 2022-05-09

This study investigated the effects of several light spectra on Stevia rebaudiana, analysing growth parameters, yield, and physiological responses within a controlled-environment agriculture (CEA) system. The experimental design involved different treatments, including specific combinations blue (435 nm 450 nm), red (663 ultraviolet (UV) wavelengths (365 to determine their impact morphological development biochemical properties, particularly focusing production sweetening compounds...

10.3390/biology14020108 article EN cc-by Biology 2025-01-21

In Australia, water resource management is a major environmental, biological, and socio-economic issue, will be an essential component of future development. The Hawker Area the central Flinders Ranges, South Australia suffers from lack reliable data to help with decision making. present study aimed delineate assess groundwater recharge potential (GWRP) zones using integration between remote sensing (RS), geographic information system (GIS), multi-influencing factors (MIF) approaches in...

10.3390/w13182571 article EN Water 2021-09-17

In semi-arid regions, groundwater resources play a crucial role in all economic, environmental, and social processes. However, the occurrence, movement, recharge of these hidden valuable vary from place to place. Therefore, better management practices mapping potential zones are needed for sustainable resources. For an example, Willochra Basin vitally important drinking, irrigation, stock use. This study shows significance application three decision-making approaches, including...

10.3390/w13040525 article EN Water 2021-02-18

Water stress has a negative impact on the yield and growth of crops worldwide consequently global food security. Many biochemical changes occur in plants as response to water stress, such activation antioxidant systems. Molybdenum (Mo) plays an important part activating expression many enzymes, CAT, POD, SOD, well increasing proline content. Mo therefore supports defence system role mung bean growing under conditions. Four concentrations (0, 15, 30, 45 mg·L−1) were applied plants, using two...

10.1155/2020/8887329 article EN cc-by International Journal of Agronomy 2020-10-30

Currently, the control of rhizosphere selection on farms has been applied to achieve enhancements in phenotype, extending from improvements single root characteristics dynamic nature entire crop systems. Several specific signals, regulatory elements, and mechanisms that regulate initiation, morphogenesis, growth new lateral or adventitious species have identified, but much more work remains. Today, phenotyping technology drives development traits. Available models for simulation can support...

10.3389/fpls.2024.1397337 article EN cc-by Frontiers in Plant Science 2024-05-21

Monsoon fluctuation due to El Niño Southern Oscillation (ENSO) has a reflective influence on rice production, which is the major food grain crop in India. The impact of ENSO spatial variability summer monsoon rainfall was analyzed from 1950 2018 and that Kharif production for period 1998–2016. It clear analysis had varied influences over different rice-growing districts Karnataka. During (strong, moderate, weak) years, southwest (S-W) below normal all Karnataka, wherein highest negative...

10.3390/agronomy11061021 article EN cc-by Agronomy 2021-05-21

Strawberries are sensitive to abiotic stresses such as salinity, high levels of electrical conductivity, and nutrient imbalances. The mutualistic endophytic fungus Piriformospora indica has significant potential be used in improving crop production under adverse conditions, with a large host range. However, greenhouse requires novel tactics improve the efficiency saline water irrigation areas limited freshwater resources. This study was conducted at National Research Development Center for...

10.3390/horticulturae10111174 article EN cc-by Horticulturae 2024-11-06

In the near future, natural disasters and associated risks are expected to increase, mainly because of impact climate change. Australia is considered one most vulnerable areas for disasters, including flooding. Therefore, an evaluation morphometric characteristics Onkaparinga basin in South was undertaken using integration remote sensing geospatial techniques identify its on flash floods. The Shuttle Radar Topography Mission (SRTM) Landsat images with other available geologic, topographic,...

10.3390/su142316270 article EN Sustainability 2022-12-06

The current study was conducted to assess how optimal tillage water and nitrogen management system are adopted reduce various field inputs, improve footprint (WF), nutrient use efficiency (NUE), rice productivity profitability. W1 (CS a depth of 5 cm) achieved significantly higher total (TWFP) compared all other irrigation strategies. When N1 (control) N2 (80 kg N ha−1) used, the highest TWFP observed. transplanted on wide raised beds (WBed-TPR) (0.71 m−3) yielded greatest (WPIRRI), followed...

10.3390/agronomy12051186 article EN cc-by Agronomy 2022-05-14

Objective The objective of this study is to estimate the prevalence olfactory and gustative dysfunctions (OGD) analyze their pattern psychosocial impact among COVID-19 patients. Method A cross-sectional was conducted 194 confirmed cases at Al-Noor Specialist Hospital between 1 September 2020 30 2021. questionnaire translated modified from another collect baseline demographic data medical history; characterization smell taste loss separately, including timing, level, practices or treatment...

10.7759/cureus.31743 article EN Cureus 2022-11-21

A field experiment was conducted to investigate the effectiveness of different herbicides for controlling wild onion (Asphodelus tenuifolius) in cumin (Cuminum cyminum L.) during rabi seasons (2018–2019 and 2019–2020) at Agricultural Research Station, Agriculture University, Jodhpur, Rajasthan. The comprised eight herbicidal weed management treatments applied a three-replication randomized block design. Among treatments, early post-emergence (8 DAS) application oxyfluorfen 200 g/ha resulted...

10.3390/agronomy11081597 article EN cc-by Agronomy 2021-08-11

20Dec 2016 EFFECT OF DISCUSSING FRAMINGHAM RISK SCORE ON SMOKE CESSATION: PILOT RANDOMIZED CLINICAL TRIAL Amr Jamal , Abdullah Alrajhi Aldubaib Abdulaziz Alsuwailem Rayan Alzuhairi and Alonazy.

10.21474/ijar01/2695 article ID cc-by International Journal of Advanced Research 2016-12-31
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