Samy Sayed

ORCID: 0000-0002-7002-568X
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About
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Research Areas
  • Insect Pest Control Strategies
  • Insect-Plant Interactions and Control
  • Insect and Pesticide Research
  • Insect Resistance and Genetics
  • Entomopathogenic Microorganisms in Pest Control
  • Plant and animal studies
  • Rice Cultivation and Yield Improvement
  • Pomegranate: compositions and health benefits
  • Nematode management and characterization studies
  • Moringa oleifera research and applications
  • Insect and Arachnid Ecology and Behavior
  • Plant Parasitism and Resistance
  • Insect Utilization and Effects
  • Agricultural Science and Fertilization
  • Nanoparticles: synthesis and applications
  • Legume Nitrogen Fixing Symbiosis
  • Insect behavior and control techniques
  • Viral Infectious Diseases and Gene Expression in Insects
  • Potato Plant Research
  • Nonlinear Waves and Solitons
  • Essential Oils and Antimicrobial Activity
  • Plant Micronutrient Interactions and Effects
  • Drug-Induced Hepatotoxicity and Protection
  • Forensic Entomology and Diptera Studies
  • Nonlinear Photonic Systems

Cairo University
2015-2025

Taif University
2014-2024

Assiut University
2019-2023

Agricultural Research Center
2022

Alexandria University
2021

Kafrelsheikh University
2021

Taibah University
2021

University of Sadat City
2021

Ministry of Agriculture
2014

Dienstleistungszentrum Ländlicher Raum
2008-2009

The agricultural wastes adversely affect the environment; however, they are rich in polyphenols; therefore, this study aimed to employ polyphenol-enriched waste extracts for silver nanoparticles synthesis, and larvicidal activity of fabricated by pomegranate watermelon peels (PPAgNPs WPAgNPs) against all larval instars

10.1016/j.sjbs.2021.06.011 article EN cc-by-nc-nd Saudi Journal of Biological Sciences 2021-06-10

In this article, our focus is to extract the diverse exact solutions conformable time-fractional modified nonlinear Schrödinger equation (CTFMNLSE) that describes propagation of water waves in ocean engineering. Diverse like trigonometric, hyperbolic and exponential function are extracted. We also secure some other special wave forms shock wave, singular, multiple mixed complex solitons. The generalized rational method (GERFM) used explain dynamics soliton CTFMNLSE. Furthermore, constraint...

10.1016/j.rinp.2020.103766 article EN cc-by-nc-nd Results in Physics 2020-12-26

In this manuscript, we employed an extended modified auxiliary equation mapping (EMAEM) method to the 3D fractional Wazwaz–Benjamin–Bona–Mahony (WBBM) with help of computer symbolic computing system. By using technique, get new sets solutions like kink and anti kink, periodic doubly periodic, bell shaped, trigonometric functional solutions, hyperbolic singular rational combined soliton solutions. These results are figured out graphically by suitable values parameters detailed behavior...

10.1016/j.rinp.2020.103725 article EN cc-by-nc-nd Results in Physics 2020-12-25

A field investigation on direct seeded rice (DSR) was carried out in the two consecutive growing seasons of 2017 and 2018 at Pantnagar, Uttarakhand, India for development validation soil test crop response (STCR) to fertilizer assessing performance STCR-treatments as compared general recommended dose (GRD) terms yield, nutrient uptake use efficiency, economics DSR. For producing 1 Mg rice-grain, required nutrients (N, P, K) were 2.01 kg, 0.44 3.06 kg; contribution from 22.05%, 37.34%,...

10.3390/agronomy11091756 article EN cc-by Agronomy 2021-08-31

Curcumin's antioxidant properties reduce free radicals and may improve broiler growth. Therefore, the influence of stocking density (SD) administration curcumin in diet on performance was explored to clarify impact HSD growth, behavioural patterns, haematological, oxidant/antioxidant parameters, immunity markers, growth-related genes expression chickens. A total 200 chickens (Cobb 500, 2-weeks old) were allotted into 4 groups; SD (moderate high) (100 mg/kg diet)-supplemented HSD,...

10.3390/ani12080958 article EN cc-by Animals 2022-04-08

The Acrylamide is a toxic compound generated under oxidative stress arising from intracellular ROS production and induced toxicity. It frequently used in industry through the heating of tobacco foods high carbohydrates. exact mechanism its toxicity still unclear. In this study, an extract peels pomegranate (Punica granatum L.), nutritious visually appealing fruit with diverse bioactive profile, was examined for potential anti-apoptotic, antioxidant, anti-inflammatory effects. A total 40...

10.3390/life12020224 article EN cc-by Life 2022-01-31

This study aims to determine the impact of dietary energy levels on rumen microbial composition and its relationship quality Black Tibetan sheep meat by applying metabolomics Pearson's correlation analyses. For this purpose, UHPLC-QTOF-MS was used identify metabolome, whereas 16S rDNA sequencing detect microbiota. Eventually, we observed that high diet group (HS) improved carcass fat deposition in longissimus lumborum (LL) compared medium (MS). However, HS considerably increased texture,...

10.3389/fnut.2022.915558 article EN cc-by Frontiers in Nutrition 2022-08-10

Introduction In the era of climate change, sugarcane used to face a problem associated with water shortage due erratic rainfall patterns and lowered tables. Improved use efficiency using innovative crop management strategy is needed for sustainable production. Trash mulching different irrigation regimes can effectively modify plant's hydrothermal micro-environment increasing cane yield productivity. Methods Keeping this in background, field experiment was conducted at Sugarcane Research...

10.3389/fsufs.2024.1340551 article EN cc-by Frontiers in Sustainable Food Systems 2024-02-13

Background: Aging is a complex biological process characterized by the accumulation of molecular and cellular damage over time, often driven oxidative stress. This stress particularly detrimental to testes, where it causes degeneration, reduced testosterone levels, compromised fertility. D-galactose (D-gal) commonly used model aging as induces stress, mimicking age-related damage. Testicular significant concern due its implications for reproductive health hormonal balance. research examines...

10.3390/pharmaceutics17020210 article EN cc-by Pharmaceutics 2025-02-06

Chemical insecticides have many harmful effects, including as foodborne residues and environmental contaminants, well side effects on natural enemies serious risks for human health. The use of plant-derived essential oils (EOs) effective bio-agents has become an component integrated pest management. In this study, the contact toxicity, deterrent, repellent activities were evaluated obtained from Mentha piperita, longifolia, Salvia officinalis, rosmarinus, grown at high altitudes in Taif...

10.3390/plants11030463 article EN cc-by Plants 2022-02-08

Drought stress restricts the growth of okra (Abelmoschus esculentus L.) primarily by disrupting its physiological and biochemical functions. This study evaluated role Ascophyllum nodosum extract (ANE) in improving drought tolerance okra. (3 days (control), 6 (mild stress), 9 (severe stress)) 4 doses ANE (0, 0.1%, 0.2%, 0.3%) were imposed after 30 cultivation. The results indicate that decreases chlorophyll content (total chlorophyll, a, b, carotenoid) but increases activity anthocyanin,...

10.3390/plants11060790 article EN cc-by Plants 2022-03-16

The two-spotted spider mite, Tetranychus urticae, also known as the red spider, is one of most harmful pests in agriculture and causes large losses many crops. These mites have rapidly developed a resistance to chemical pesticides recent years. In this study, essential oil seeds anise plant (Pimpinella anisum) was extracted by hydrodistillation, composition analyzed. antioxidant activity volatile determined DPPH radical scavenging assay. acaricidal oil, natural acaricide, evaluated for its...

10.3390/agriculture12020224 article EN cc-by Agriculture 2022-02-03

The fall armyworm, Spodoptera frugiperda (Noctuidae; Lepidoptera), is a serious threat to food security as it has the potential feed on over 353 plant species. To control this insect pest, endophytic colonization of entomopathogenic fungi (EPF) in plants being considered safer and more effective alternative. This study evaluated efficacy two EPFs, Beauveria bassiana Metarhizium anisopliae, for using foliar spray seed treatment methods maize plants, their impact survival, development,...

10.3390/microorganisms11041067 article EN cc-by Microorganisms 2023-04-19

The Glutamicibacter group of microbes is known for antibiotic and enzyme production. Antibiotics enzymes produced by them are important in the control, protection, treatment chronic human diseases. In this study, mysorens (G. mysorens) strain MW647910.1 was isolated from mangrove soil Mangalore region India. After optimization growth conditions G. on starch casein agar media, micromorphology found to be spirally coiled spore chain, each visualized as an elongated cylindrical hairy appearance...

10.3389/fmicb.2023.1096826 article EN cc-by Frontiers in Microbiology 2023-02-17

Eight new field isolates of Cydia pomonella granulovirus (CpGV) originating in Iran and Georgia one English CpGV isolate were analysed for restriction fragment length polymorphisms (RFLPs) by partial genome amplification sequencing. According to the observed RFLPs, most predominant genotypes these could be assigned those present previously found from Mexico (CpGV-M), England (CpGV-E) Russia (CpGV-R). We suggest that should designated A, B C types, respectively. A fourth type was identified...

10.1099/vir.0.006999-0 article EN Journal of General Virology 2009-02-13

Obesity is a serious global problem that causes predisposition to numerous diseases. The current study aims investigate the effect of ginger water on body weight and energy expenditure through modulation mRNA expression carbohydrate lipid metabolism. A white colored liquid obtained during freeze-drying fresh rhizomes Zingiber officinal was collected named water. It used treat rats, then blood tissue samples were from liver adipose at end experiment. serum prepared for biochemical assays,...

10.3390/foods9010038 article EN cc-by Foods 2020-01-02

Unwanted agricultural waste is largely comprised of lignocellulosic substrate which could be transformed into sugars. The production bioethanol from garbage manifested an agreeable proposal towards management as well energy causation. goal this work to optimize parameters for generation through fermentation by different yeast strains while

10.1016/j.sjbs.2021.06.081 article EN cc-by-nc-nd Saudi Journal of Biological Sciences 2021-07-01

Nitrogen fertilizer is one of the key elements to increase yield and significance winter wheat. The experiment was established in split zone design repeated three times. nitrogen application level set 4 treatments, 75, 150, 225 300 kg ha−1 are arranged main plot, different ratios sub-plots, respectively 5:5 (50%+50%) 6: (60%) + 40%). applied before sowing, jointing stage, flowering stage filling stage. experimental plot 12 m2 (3 m × m). results showed that under conditions kg/hm2 60%+40%...

10.1016/j.sjbs.2021.07.027 article EN cc-by-nc-nd Saudi Journal of Biological Sciences 2021-07-10

Biofortification of pulse crops with Zn and Fe is a viable approach to combat their widespread deficiencies in humans. Lentil (Lens culinaris Medik.) widely consumed edible crop possessing high level micronutrients. Thus, the present study was conducted examine influence foliar application on productivity, concentration, uptake economics lentil cultivation (LL 931). For this, different treatment combinations ZnSO4·7H2O (0.5%) FeSO4·7H2O (0.5%), along recommended dose fertilizer (RDF), were...

10.3390/molecules26247671 article EN cc-by Molecules 2021-12-18

Indian mustard (Brassica juncea L.) is an important winter oilseed crop in India. It acts as a promising species for the extraction of Zn and Fe under nutrient-deficit conditions. Therefore, this study planned to determine impact nutritional supplementation (Zn, urea) on productivity quality mustard. In experiment, different combinations recommended dose fertilizer (RDF) with 0.5% FeSO4·7H2O, ZnSO4·7H2O 1% urea at 45 60 days after sowing (DAS) were applied Foliar application micronutrients...

10.3390/agronomy11112333 article EN cc-by Agronomy 2021-11-18

This work aims to study the effect of foliar spraying three anti-transpirants i.e., A­1: tryptophan (Tri), A2: potassium silicate (KS), A3: chitosan (Chi) as well A0: control (Tap water) under irrigation regimes, I1: 2400, I2: 3600, and I3: 4800 m3ha−1 on quality production faba bean crop its nutrient contents. The was carried out during two successive winter seasons 2018/2019 2019/2020. Drought stress affected average performance all studied traits it reduced seed yield traits, a result...

10.1016/j.sjbs.2021.10.007 article EN cc-by-nc-nd Saudi Journal of Biological Sciences 2021-10-13
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