Alan R. Putnam

4.1k total citations · 1 hit paper
42 papers, 3.0k citations indexed

About

Alan R. Putnam is a scholar working on Plant Science, Cell Biology and Molecular Biology. According to data from OpenAlex, Alan R. Putnam has authored 42 papers receiving a total of 3.0k indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Plant Science, 8 papers in Cell Biology and 6 papers in Molecular Biology. Recurrent topics in Alan R. Putnam's work include Weed Control and Herbicide Applications (22 papers), Allelopathy and phytotoxic interactions (21 papers) and Plant Pathogens and Fungal Diseases (8 papers). Alan R. Putnam is often cited by papers focused on Weed Control and Herbicide Applications (22 papers), Allelopathy and phytotoxic interactions (21 papers) and Plant Pathogens and Fungal Diseases (8 papers). Alan R. Putnam collaborates with scholars based in United States, Czechia and Brazil. Alan R. Putnam's co-authors include Jane P. Barnes, Joseph DeFrank, Chung-Shih Tang, Muraleedharan G. Nair, W. B. Duke, Raymond Hammerschmidt, Gene R. Safir, José Oswaldo Siqueira, Basil A. Burke and Leslie A. Weston and has published in prestigious journals such as Science, PLANT PHYSIOLOGY and Journal of Agricultural and Food Chemistry.

In The Last Decade

Alan R. Putnam

42 papers receiving 2.7k citations

Hit Papers

Herbicide resistance in plants 1983 2026 1997 2011 1983 100 200 300 400
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Herbicide resistance in plants
    1983 443 citations Alan R. Putnam profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Alan R. Putnam United States 25 2.6k 444 387 324 305 42 3.0k
Chester L. Foy United States 28 2.0k 0.8× 259 0.6× 246 0.6× 723 2.2× 381 1.2× 138 2.5k
D. Lemerle Australia 28 2.3k 0.9× 977 2.2× 243 0.6× 125 0.4× 254 0.8× 121 2.6k
Frank A. Einhellig United States 27 2.1k 0.8× 133 0.3× 264 0.7× 88 0.3× 236 0.8× 44 2.3k
Stephen C. Weller United States 32 2.7k 1.0× 425 1.0× 933 2.4× 908 2.8× 249 0.8× 105 3.2k
Ernest G. Jaworski United States 22 2.0k 0.8× 172 0.4× 931 2.4× 283 0.9× 119 0.4× 39 2.5k
Margot Schulz Germany 28 1.7k 0.7× 173 0.4× 688 1.8× 112 0.3× 161 0.5× 91 2.2k
Vivienne Gianinazzi-Pearson France 46 6.6k 2.5× 249 0.6× 824 2.1× 217 0.7× 594 1.9× 133 6.9k
Robert E. Hoagland United States 25 1.8k 0.7× 81 0.2× 521 1.3× 633 2.0× 238 0.8× 98 2.2k
L. G. Paleg Australia 33 2.6k 1.0× 201 0.5× 1.0k 2.6× 51 0.2× 244 0.8× 82 3.4k
Katharina Pawlowski Sweden 35 3.3k 1.2× 557 1.3× 783 2.0× 93 0.3× 217 0.7× 125 3.7k

Countries citing papers authored by Alan R. Putnam

Since Specialization
Citations

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

Fields of papers citing papers by Alan R. Putnam

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Alan R. Putnam. 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 Alan R. Putnam. The network helps show where Alan R. Putnam may publish in the future.

Co-authorship network of co-authors of Alan R. Putnam

This figure shows the co-authorship network connecting the top 25 collaborators of Alan R. Putnam. A scholar is included among the top collaborators of Alan R. Putnam 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 Alan R. Putnam. Alan R. Putnam 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.
Nair, Muraleedharan G., et al.. (1992). Antifungal anthracycline antibiotics, spartanamicins A and B from Micromonospora spp.. The Journal of Antibiotics. 45(11). 1738–1745. 33 indexed citations
2.
Siqueira, José Oswaldo, Muraleedharan G. Nair, Raymond Hammerschmidt, Gene R. Safir, & Alan R. Putnam. (1991). Significance of phenolic compounds in plant‐soil‐microbial systems. Critical Reviews in Plant Sciences. 10(1). 63–121. 238 indexed citations
3.
Nair, Muraleedharan G., et al.. (1991). 2,2?-oxo-1,1?-azobenzene: microbial transformation of rye (Secale cereale L.) allelochemical in field soils byAcinetobacter calcoaceticus: III. Journal of Chemical Ecology. 17(8). 1575–1584. 32 indexed citations
4.
Nair, Muraleedharan G., et al.. (1991). 2,2?-OXO-1,1?-azobenzene: Selective toxicity of rye (Secale cereale L.) allelochemicals to weed and crop species: II. Journal of Chemical Ecology. 17(1). 9–19. 58 indexed citations
5.
Nair, Muraleedharan G., et al.. (1990). 2,2?-OXO-1, 1 ?-azobenzene A microbially transformed allelochemical from 2,3-Benzoxazolinone: I. Journal of Chemical Ecology. 16(2). 353–364. 59 indexed citations
6.
Putnam, Alan R., et al.. (1990). In vitro control of Fusarium diseases of Asparagus officinalis L. with a Streptomyces or its polyene antibiotic, faeriefungin. Journal of Agricultural and Food Chemistry. 38(8). 1729–1733. 30 indexed citations
7.
Putnam, Alan R., et al.. (1989). Inhibitory Activity of Asparagus Root Tissue and Extracts on Asparagus Seedlings. Journal of the American Society for Horticultural Science. 114(1). 144–148. 19 indexed citations
8.
Putnam, Alan R., et al.. (1989). Herbicidal Metabolites from a Soil-Dwelling Fungus (Scopulariopis brumptii). Weed Science. 37(1). 123–128. 9 indexed citations
9.
Miller, R. W., R. Kleiman, Richard G. Powell, & Alan R. Putnam. (1988). Germination and Growth Inhibitors of Alfalfa. Journal of Natural Products. 51(2). 328–330. 34 indexed citations
10.
Putnam, Alan R.. (1988). Allelochemicals from Plants as Herbicides. Weed Technology. 2(4). 510–518. 172 indexed citations
11.
Barnes, Jane P. & Alan R. Putnam. (1987). Role of benzoxazinones in allelopathy by rye (Secale cereale L.). Journal of Chemical Ecology. 13(4). 889–906. 195 indexed citations
12.
Weston, Leslie A., Basil A. Burke, & Alan R. Putnam. (1987). Isolation, characterization and activity of phytotoxic compounds from quackgrass [Agropyron repens (L.)Beauv.]. Journal of Chemical Ecology. 13(3). 403–421. 39 indexed citations
13.
Putnam, Alan R. & Chung-Shih Tang. (1986). The Science of allelopathy. Wiley eBooks. 290 indexed citations
14.
Heisey, Rod M. & Alan R. Putnam. (1986). Herbicidal Effects of Geldanamycin and Nigericin, Antibiotics from Streptomyces hygroscopicus. Journal of Natural Products. 49(5). 859–865. 30 indexed citations
15.
Putnam, Alan R., et al.. (1984). Allelopathic potential of sorghum (Sorghum bicolor): Isolation of seed germination inhibitors. Journal of Chemical Ecology. 10(4). 693–693. 27 indexed citations
16.
Putnam, Alan R., Joseph DeFrank, & Jane P. Barnes. (1983). Exploitation of allelopathy for weed control in annual and perennial cropping systems. Journal of Chemical Ecology. 9(8). 1001–1010. 198 indexed citations
17.
Putnam, Alan R. & Joseph DeFrank. (1983). Use of phytotoxic plant residues for selective weed control. Crop Protection. 2(2). 173–181. 199 indexed citations
18.
Putnam, Alan R., et al.. (1983). Allelopathic potential of sorghum (Sorghum bicolor). Journal of Chemical Ecology. 9(8). 1223–1234. 29 indexed citations
19.
20.
Putnam, Alan R., et al.. (1980). Environmental Influences on the Selectivity of Diphenamid in Seeded Tomato (Lycopersicon esculentum). Weed Science. 28(2). 176–180. 5 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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