Ray Hammerschmidt

1.4k total citations
24 papers, 911 citations indexed

About

Ray Hammerschmidt is a scholar working on Plant Science, Cell Biology and Molecular Biology. According to data from OpenAlex, Ray Hammerschmidt has authored 24 papers receiving a total of 911 indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Plant Science, 8 papers in Cell Biology and 6 papers in Molecular Biology. Recurrent topics in Ray Hammerschmidt's work include Plant Disease Management Techniques (11 papers), Plant Pathogens and Fungal Diseases (8 papers) and Plant pathogens and resistance mechanisms (6 papers). Ray Hammerschmidt is often cited by papers focused on Plant Disease Management Techniques (11 papers), Plant Pathogens and Fungal Diseases (8 papers) and Plant pathogens and resistance mechanisms (6 papers). Ray Hammerschmidt collaborates with scholars based in United States, Germany and Brazil. Ray Hammerschmidt's co-authors include Karen A. Renner, B. W. Diers, E. K. Dann, Kelly A. Nelson, Chad D. Lee, Donald Penner, Clint Chapple, Shauna Somerville, A. Winkel and David S. Douches and has published in prestigious journals such as PLANT PHYSIOLOGY, Journal of Agricultural and Food Chemistry and The Plant Journal.

In The Last Decade

Ray Hammerschmidt

24 papers receiving 858 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ray Hammerschmidt United States 15 772 311 137 55 54 24 911
Samuel S. Gnanamanickam India 15 777 1.0× 228 0.7× 149 1.1× 40 0.7× 42 0.8× 17 921
Lucie Trdá Czechia 11 809 1.0× 188 0.6× 160 1.2× 48 0.9× 46 0.9× 11 933
R. Nandakumar India 14 1.0k 1.4× 316 1.0× 243 1.8× 68 1.2× 86 1.6× 35 1.2k
V. Shanmugam India 19 810 1.0× 273 0.9× 267 1.9× 25 0.5× 72 1.3× 59 952
L. Rajendran India 16 787 1.0× 294 0.9× 247 1.8× 37 0.7× 78 1.4× 82 952
Shihua Shan China 20 755 1.0× 376 1.2× 81 0.6× 27 0.5× 75 1.4× 56 909
R. M. Devarumath India 16 1.0k 1.3× 540 1.7× 88 0.6× 85 1.5× 55 1.0× 46 1.2k
Ung-Han Yoon South Korea 13 594 0.8× 233 0.7× 142 1.0× 72 1.3× 30 0.6× 45 756
Eva Casanova Spain 14 823 1.1× 348 1.1× 219 1.6× 37 0.7× 32 0.6× 16 950

Countries citing papers authored by Ray Hammerschmidt

Since Specialization
Citations

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

Fields of papers citing papers by Ray Hammerschmidt

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ray Hammerschmidt. 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 Ray Hammerschmidt. The network helps show where Ray Hammerschmidt may publish in the future.

Co-authorship network of co-authors of Ray Hammerschmidt

This figure shows the co-authorship network connecting the top 25 collaborators of Ray Hammerschmidt. A scholar is included among the top collaborators of Ray Hammerschmidt 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 Ray Hammerschmidt. Ray Hammerschmidt 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.
Byrne, J. M., et al.. (2021). Evolving Plant Diagnostics During a Pandemic. Plant Health Progress. 22(1). 21–25. 6 indexed citations
2.
Lü, Shiyou, Ray Hammerschmidt, David S. Douches, et al.. (2021). Transcriptional regulation of wound suberin deposition in potato cultivars with differential wound healing capacity. The Plant Journal. 107(1). 77–99. 33 indexed citations
3.
Creswell, Tom, et al.. (2021). Everything Is Faster: How Do Land-Grant University–Based Plant Diagnostic Laboratories Keep Up with a Rapidly Changing World?. Annual Review of Phytopathology. 59(1). 333–349. 4 indexed citations
4.
Hammerschmidt, Ray. (2015). Being an adult plant sometimes has its advantages. Physiological and Molecular Plant Pathology. 89. v–vi. 2 indexed citations
5.
Hammerschmidt, Ray, et al.. (2012). Timing and Frequency Effects of Lightweight Rolling on Dollar Spot Disease in Creeping Bentgrass Putting Greens. Crop Science. 52(3). 1371–1378. 9 indexed citations
6.
Varbanova, Marina, Katie J. Porter, Fachuang Lu, et al.. (2011). Molecular and Biochemical Basis for Stress-Induced Accumulation of Free and Boundp-Coumaraldehyde in Cucumber    . PLANT PHYSIOLOGY. 157(3). 1056–1066. 24 indexed citations
7.
Göpfert, Jens, et al.. (2008). Different pathotypes of the sunflower downy mildew pathogen Plasmopara halstedii all contain isometric virions†. Molecular Plant Pathology. 9(6). 777–786. 7 indexed citations
8.
Lamour, Kurt, James P. Stack, Ray Hammerschmidt, et al.. (2006). Early Detection of Asian Soybean Rust Using PCR. Plant Health Progress. 7(1). 10 indexed citations
9.
Hammerschmidt, Ray, et al.. (2005). History and Perspectives on the Use of Disease Resistance Inducers in Horticultural Crops. HortTechnology. 15(3). 518–529. 27 indexed citations
10.
Lee, Chad D., Karen A. Renner, Donald Penner, Ray Hammerschmidt, & James D. Kelly. (2005). Glyphosate-Resistant Soybean Management System Effect on Sclerotinia Stem Rot. Weed Technology. 19(3). 580–588. 19 indexed citations
11.
Velásquez, Luís & Ray Hammerschmidt. (2004). Development of a method for the detection and quantification of total chitinase activity by digital analysis. Journal of Microbiological Methods. 59(1). 7–14. 8 indexed citations
12.
Lee, Chad D., Donald Penner, & Ray Hammerschmidt. (2003). Glyphosate and shade effects on glyphosate-resistant soybean defense response to Sclerotinia sclerotiorum. Weed Science. 51(3). 294–298. 9 indexed citations
13.
Nelson, Kelly A., Karen A. Renner, & Ray Hammerschmidt. (2002). Effects of Protoporphyrinogen Oxidase Inhibitors on Soybean (Glycine max L.) Response, Sclerotinia sclerotiorum Disease Development, and Phytoalexin Production by Soybean1. Weed Technology. 16(2). 353–359. 27 indexed citations
14.
Annis, Seanna L., Luís Velásquez, Haixin Xu, et al.. (2000). Novel Procedure for Identification of Compounds Inhibitory to Transcription of Genes Involved in Mycotoxin Biosynthesis. Journal of Agricultural and Food Chemistry. 48(10). 4656–4660. 8 indexed citations
15.
Lee, Chad D., Donald Penner, & Ray Hammerschmidt. (2000). Influence of formulated glyphosate and activator adjuvants onSclerotinia sclerotiorumin glyphosate-resistant and-susceptibleGlycine max. Weed Science. 48(6). 710–715. 28 indexed citations
16.
Zook, Michael N., et al.. (1998). Camalexin accumulation in Arabis lyrata. Phytochemistry. 49(8). 2287–2289. 20 indexed citations
18.
Douches, David S., et al.. (1997). Susceptibility of potato varieties and advanced breeding lines (Solanum tuberosum L.) toPhytophthora infestans (Mont.) de Bary in greenhouse screenings. American Journal of Potato Research. 74(2). 75–86. 26 indexed citations
19.
Chapple, Clint, et al.. (1994). 36 Secondary Metabolism in Arabidopsis. Cold Spring Harbor Monograph Archive. 27. 989–1030. 14 indexed citations
20.
Chapple, Clint, et al.. (1994). Secondary Metabolism in Arabidopsis. 55 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

Rankless by CCL
2026