R. G. O'Brien

472 total citations
23 papers, 345 citations indexed

About

R. G. O'Brien is a scholar working on Plant Science, Cell Biology and Ecology, Evolution, Behavior and Systematics. According to data from OpenAlex, R. G. O'Brien has authored 23 papers receiving a total of 345 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Plant Science, 10 papers in Cell Biology and 5 papers in Ecology, Evolution, Behavior and Systematics. Recurrent topics in R. G. O'Brien's work include Plant Pathogens and Fungal Diseases (10 papers), Plant Pathogens and Resistance (8 papers) and Plant Pathogenic Bacteria Studies (4 papers). R. G. O'Brien is often cited by papers focused on Plant Pathogens and Fungal Diseases (10 papers), Plant Pathogens and Resistance (8 papers) and Plant Pathogenic Bacteria Studies (4 papers). R. G. O'Brien collaborates with scholars based in Australia and United States. R. G. O'Brien's co-authors include M. J. Dudzinski, K.M. Old, R. W. Sutherst, Tania Yonow, Martin J. Barbetti, R. W. Emmett, G. M. Murray, C. Ruth Archer, K. Sivasithamparam and S. Chakraborty and has published in prestigious journals such as Plant Disease, Australasian Plant Pathology and New Zealand Journal of Crop and Horticultural Science.

In The Last Decade

R. G. O'Brien

21 papers receiving 315 citations

Peers

R. G. O'Brien
Caroline Angelard Switzerland
Neal Evans United Kingdom
M.S. Melzer Canada
M. J. Dudzinski Australia
Silvana Longo Argentina
S. S. Hirano United States
A. C. Cobb United States
M. J. Hattingh South Africa
Hana Pánková Czechia
R. A. Daamen Netherlands
Caroline Angelard Switzerland
R. G. O'Brien
Citations per year, relative to R. G. O'Brien R. G. O'Brien (= 1×) peers Caroline Angelard

Countries citing papers authored by R. G. O'Brien

Since Specialization
Citations

This map shows the geographic impact of R. G. O'Brien'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 R. G. O'Brien with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R. G. O'Brien more than expected).

Fields of papers citing papers by R. G. O'Brien

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R. G. O'Brien. 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 R. G. O'Brien. The network helps show where R. G. O'Brien may publish in the future.

Co-authorship network of co-authors of R. G. O'Brien

This figure shows the co-authorship network connecting the top 25 collaborators of R. G. O'Brien. A scholar is included among the top collaborators of R. G. O'Brien 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 R. G. O'Brien. R. G. O'Brien 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.
2.
O'Brien, R. G., et al.. (2002). . Australasian Plant Pathology. 31(3). 305–305. 7 indexed citations
3.
O'Brien, R. G., et al.. (1999). DISEASE NOTES OR NEW RECORDS: Bacterial blight in Queensland beetroot crops. Australasian Plant Pathology. 28(2). 182–182. 3 indexed citations
4.
O'Brien, R. G., et al.. (1999). Bacterial blotch of melons caused by strains of Acidovorax avenae subsp. citrulli. Australian Journal of Experimental Agriculture. 39(4). 479–479. 56 indexed citations
5.
Chakraborty, S., G. M. Murray, P. A. Magarey, et al.. (1998). Potential impact of climate change on plant diseases of economic significance to Australia. Australasian Plant Pathology. 27(1). 15–15. 113 indexed citations
6.
O'Brien, R. G., et al.. (1995). Three metalaxyl sensitivity levels in Australian isolates of Pseudoperonospora cubensis (Berk. et Curt.) Rost. Australian Journal of Experimental Agriculture. 35(4). 543–543. 5 indexed citations
7.
O'Brien, R. G.. (1994). Fungicide resistance in populations of cucurbit powdery mildew ( Sphaerotheca fuliginea ). New Zealand Journal of Crop and Horticultural Science. 22(2). 145–149. 23 indexed citations
8.
O'Brien, R. G., et al.. (1994). A Storage Technique for Cucurbit Powdery Mildew (Sphaerotheca Fuliginea).. Australasian Plant Pathology. 23(3). 86–86. 7 indexed citations
9.
O'Brien, R. G. & KG Pegg. (1994). Plant Pathology in Australasia: - a Future Perspective From the Disease Management Point of View.. Australasian Plant Pathology. 23(4). 213–213.
10.
O'Brien, R. G., et al.. (1994). Lettuce Black Root Rot - a Disease Caused by Chalara Elegans.. Australasian Plant Pathology. 23(3). 106–106. 16 indexed citations
11.
O'Brien, R. G.. (1992). Control of onion downy mildew in the presence of phenylamide-resistant strains of Peronospora destructor (Berk.) Caspary. Australian Journal of Experimental Agriculture. 32(5). 669–669. 11 indexed citations
12.
O'Brien, R. G., et al.. (1991). Chemical control of powdery mildew in green peas.. Australasian Plant Pathology. 20(1). 16–16. 6 indexed citations
13.
O'Brien, R. G., et al.. (1988). Fungicide resistance in cucurbit powdery mildew (Sphaerotheca fuliginea) and its effect on field control. Australian Journal of Experimental Agriculture. 28(3). 417–417. 25 indexed citations
14.
O'Brien, R. G., et al.. (1986). The Appearance of Dicarboximide Resistance in Botrytis Cinerea in Queensland.. Australasian Plant Pathology. 15(1). 24–24. 5 indexed citations
15.
O'Brien, R. G., et al.. (1986). Aphanomyces cochlioides Dreshsler, a cause of root rot of beetroot in Queensland.. Australasian Plant Pathology. 15(3). 64–64. 2 indexed citations
16.
O'Brien, R. G., et al.. (1984). Glasshouse Screening of Species of Stylosanthes for Resistance to Anthracnose Diseases. Queensland's institutional digital repository (The University of Queensland).
17.
O'Brien, R. G., et al.. (1981). Identification of Race 2 of Verticillium Wilt in Tomatoes in South-East Queensland.. Australasian Plant Pathology. 10(3). 56–56. 10 indexed citations
18.
O'Brien, R. G.. (1978). Systemic chemicals for tobacco blue mold control.. ˜The œPlant disease reporter. 62(3). 277–279. 3 indexed citations
19.
O'Brien, R. G., et al.. (1977). Peanut leaf spot and rust control on the Atherton Tableland. 103(2). 113–115. 2 indexed citations
20.
O'Brien, R. G., et al.. (1973). Peanut Rust.. Australasian Plant Pathology. 2(2). 1–1. 2 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Caroline Angelard Breakdown of academic impact, for papers by Neal Evans Breakdown of academic impact, for papers by M.S. Melzer Breakdown of academic impact, for papers by M. J. Dudzinski Breakdown of academic impact, for papers by Silvana Longo Breakdown of academic impact, for papers by S. S. Hirano Breakdown of academic impact, for papers by A. C. Cobb Breakdown of academic impact, for papers by M. J. Hattingh Breakdown of academic impact, for papers by Hana Pánková Breakdown of academic impact, for papers by R. A. Daamen
Rankless by CCL
2026