O. H. Sayed

793 total citations
29 papers, 626 citations indexed

About

O. H. Sayed is a scholar working on Plant Science, Ecology, Evolution, Behavior and Systematics and Molecular Biology. According to data from OpenAlex, O. H. Sayed has authored 29 papers receiving a total of 626 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Plant Science, 15 papers in Ecology, Evolution, Behavior and Systematics and 11 papers in Molecular Biology. Recurrent topics in O. H. Sayed's work include Photosynthetic Processes and Mechanisms (8 papers), Plant Ecology and Taxonomy Studies (7 papers) and Plant Water Relations and Carbon Dynamics (6 papers). O. H. Sayed is often cited by papers focused on Photosynthetic Processes and Mechanisms (8 papers), Plant Ecology and Taxonomy Studies (7 papers) and Plant Water Relations and Carbon Dynamics (6 papers). O. H. Sayed collaborates with scholars based in Saudi Arabia, Egypt and Qatar. O. H. Sayed's co-authors include Yahya S. Masrahi, M. J. Earnshaw, Turki A. Al‐Turki, Michael J. Emes, Ahmad K. Hegazy, Matthew A. Cooper, Prakash Ishwar, Mohammed Nasser Alyemeni and R. D. Butler and has published in prestigious journals such as SHILAP Revista de lepidopterología, Journal of Experimental Botany and Biochemical Society Transactions.

In The Last Decade

O. H. Sayed

29 papers receiving 572 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
O. H. Sayed Saudi Arabia 11 431 173 134 101 49 29 626
Yan‐Ping Cen Canada 9 591 1.4× 197 1.1× 141 1.1× 138 1.4× 150 3.1× 13 799
Titta Kotilainen Finland 15 469 1.1× 161 0.9× 103 0.8× 84 0.8× 109 2.2× 27 661
D.G. Clark United States 6 336 0.8× 75 0.4× 55 0.4× 56 0.6× 36 0.7× 12 536
Edwin A. Davis United States 17 574 1.3× 180 1.0× 47 0.4× 59 0.6× 57 1.2× 53 753
Satohiko Sasaki Japan 14 481 1.1× 209 1.2× 79 0.6× 115 1.1× 100 2.0× 34 743
B. G. Sutton Australia 21 1.0k 2.4× 490 2.8× 212 1.6× 178 1.8× 95 1.9× 48 1.4k
Jacek Mojski Poland 8 393 0.9× 131 0.8× 42 0.3× 50 0.5× 49 1.0× 12 503
Daisuke Sugiura Japan 17 780 1.8× 221 1.3× 65 0.5× 240 2.4× 51 1.0× 41 920
Dan TerAvest United States 6 288 0.7× 90 0.5× 44 0.3× 40 0.4× 55 1.1× 7 451
Harshi K. Gamage Australia 11 459 1.1× 80 0.5× 83 0.6× 74 0.7× 56 1.1× 21 686

Countries citing papers authored by O. H. Sayed

Since Specialization
Citations

This map shows the geographic impact of O. H. Sayed's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by O. H. Sayed with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites O. H. Sayed more than expected).

Fields of papers citing papers by O. H. Sayed

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by O. H. Sayed. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by O. H. Sayed. The network helps show where O. H. Sayed may publish in the future.

Co-authorship network of co-authors of O. H. Sayed

This figure shows the co-authorship network connecting the top 25 collaborators of O. H. Sayed. A scholar is included among the top collaborators of O. H. Sayed based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with O. H. Sayed. O. H. Sayed is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Sayed, O. H. & Yahya S. Masrahi. (2023). Climatology and phytogeography of Saudi Arabia. A review. Arid Land Research and Management. 37(3). 311–368. 9 indexed citations
2.
Sayed, O. H., et al.. (2019). Coffee production in southern Saudi Arabian highlands: Current status and water conservation. Saudi Journal of Biological Sciences. 26(7). 1911–1914. 11 indexed citations
3.
Sayed, O. H.. (2019). Critical Treatise on University Ranking Systems. Open Journal of Social Sciences. 7(12). 39–51. 7 indexed citations
4.
Masrahi, Yahya S., et al.. (2018). Phragmites australis (Poaceae): New addition to flora of southwestern Saudi Arabia. Saudi Journal of Biological Sciences. 26(7). 1563–1566. 10 indexed citations
5.
Masrahi, Yahya S., Turki A. Al‐Turki, & O. H. Sayed. (2015). Photosynthetic adaptation and survival strategy of Duvalia velutina in an extremely arid environment. Photosynthetica. 53(4). 555–561. 11 indexed citations
6.
Masrahi, Yahya S., Mohammed Nasser Alyemeni, & O. H. Sayed. (2012). Nurse association of the stem succulent Caralluma acutangula in its natural habitat.. Ochrana prírody Slovenska/Ekológia. 31(1). 46–53. 5 indexed citations
7.
Masrahi, Yahya S., Turki A. Al‐Turki, & O. H. Sayed. (2012). Crassulacean Acid Metabolism Permutation and Survival of Caralluma Species (Apocynaceae) in Arid Habitats. SHILAP Revista de lepidopterología. 7 indexed citations
8.
Masrahi, Yahya S., et al.. (2011). Ecophysiological mechanisms of succulent survival in natural conditions: photosynthetic carbon fixation in Caralluma acutangula (Decne. N.E.Br.) (Asclepiadaceae). Polish Journal of Ecology. 59(3). 437–442. 4 indexed citations
9.
Masrahi, Yahya S., Turki A. Al‐Turki, & O. H. Sayed. (2010). Wolffiella hyalina (Delile) Monod (Lemnaceae) – A New Record for the Flora of Saudi Arabia. Feddes Repertorium. 121(5-6). 189–193. 19 indexed citations
10.
Sayed, O. H.. (2003). Chlorophyll Fluorescence as a Tool in Cereal Crop Research. Photosynthetica. 41(3). 321–330. 251 indexed citations
11.
Sayed, O. H. & Prakash Ishwar. (2001). Aridity and plant survival in desert environments.. 87–103. 7 indexed citations
12.
Sayed, O. H., et al.. (2000). Altitudinal Changes in Photosynthetic Pathways of Floristic Elements in Southern Sinai, Egypt. Photosynthetica. 38(3). 367–372. 8 indexed citations
13.
Sayed, O. H., et al.. (2000). Growth, photosynthesis and circadian patterns in (Chlorophyta) in response to growth temperature. Cryptogamie Algologie. 21(3). 283–290. 8 indexed citations
14.
Sayed, O. H.. (1996). Adaptational responses ofZygophyllum qatarenseHadidi to stress conditions in a desert environment. Journal of Arid Environments. 32(4). 445–452. 27 indexed citations
15.
Sayed, O. H.. (1995). Effects of temperature on growth, morphology, and photosynthesis in wheat. Biologia Plantarum. 37(1). 7 indexed citations
16.
Sayed, O. H., M. J. Earnshaw, & Matthew A. Cooper. (1994). Growth, water relations, and CAM induction inSedum album in response to water stress. Biologia Plantarum. 36(3). 21 indexed citations
17.
Sayed, O. H. & Ahmad K. Hegazy. (1994). Growth-specific phytomass allocation in Mesembryanthemum nodiflorum as influenced by CAM induction in the field. Journal of Arid Environments. 27(4). 325–329. 11 indexed citations
18.
Sayed, O. H.. (1993). Ecophysiological Characteristics, Distribution, and Nutritional Value of Desert Range Plants in Qatar. Qatar University QSpace (Qatar University). 1 indexed citations
19.
20.
Sayed, O. H.. (1992). Photosynthetic acclimation to high temperatures in wheat. Acta Botanica Neerlandica. 41(3). 299–304. 3 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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