R. C. Leffel

522 total citations
30 papers, 346 citations indexed

About

R. C. Leffel is a scholar working on Plant Science, Agronomy and Crop Science and Environmental Chemistry. According to data from OpenAlex, R. C. Leffel has authored 30 papers receiving a total of 346 indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Plant Science, 9 papers in Agronomy and Crop Science and 2 papers in Environmental Chemistry. Recurrent topics in R. C. Leffel's work include Soybean genetics and cultivation (22 papers), Legume Nitrogen Fixing Symbiosis (11 papers) and Agronomic Practices and Intercropping Systems (9 papers). R. C. Leffel is often cited by papers focused on Soybean genetics and cultivation (22 papers), Legume Nitrogen Fixing Symbiosis (11 papers) and Agronomic Practices and Intercropping Systems (9 papers). R. C. Leffel collaborates with scholars based in United States, Japan and Denmark. R. C. Leffel's co-authors include W. D. Hanson, H. W. Johnson, H. A. Borthwick, Maimon M. Cohen, Robert W. Howell, Perry B. Cregan, W. T. Schapaugh, Martin G. Weiß, R. W. Yaklich and R. K. Howell and has published in prestigious journals such as Journal of Environmental Quality, Crop Science and Agronomy Journal.

In The Last Decade

R. C. Leffel

30 papers receiving 287 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
R. C. Leffel United States 10 311 90 37 29 23 30 346
C. Duthion France 10 396 1.3× 178 2.0× 23 0.6× 66 2.3× 9 0.4× 17 416
Leonard F. Williams United States 7 302 1.0× 50 0.6× 17 0.5× 44 1.5× 5 0.2× 9 339
Enoch Sapey China 7 250 0.8× 65 0.7× 27 0.7× 34 1.2× 20 0.9× 19 305
R. D. Wych United States 8 335 1.1× 180 2.0× 42 1.1× 14 0.5× 39 1.7× 9 374
S. Abu‐Shakra United States 9 290 0.9× 105 1.2× 29 0.8× 18 0.6× 3 0.1× 16 307
M. M. Noaman Egypt 7 288 0.9× 62 0.7× 23 0.6× 9 0.3× 15 0.7× 17 311
Hakan Ulukan Türkiye 8 291 0.9× 93 1.0× 39 1.1× 42 1.4× 25 1.1× 25 341
A. J. Linck United States 9 217 0.7× 42 0.5× 62 1.7× 42 1.4× 6 0.3× 31 271
V. Stoy Sweden 9 271 0.9× 149 1.7× 53 1.4× 18 0.6× 6 0.3× 17 327
Hrvoje Šarčević Croatia 12 311 1.0× 109 1.2× 42 1.1× 17 0.6× 51 2.2× 59 358

Countries citing papers authored by R. C. Leffel

Since Specialization
Citations

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

Fields of papers citing papers by R. C. Leffel

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of R. C. Leffel

This figure shows the co-authorship network connecting the top 25 collaborators of R. C. Leffel. A scholar is included among the top collaborators of R. C. Leffel 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. C. Leffel. R. C. Leffel 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.
Leffel, R. C.. (1994). Registration of BARC‐12, a Low Linolenic Acid Soybean Germplasm Line. Crop Science. 34(5). 1426–1427. 6 indexed citations
2.
Leffel, R. C.. (1994). Registration of Fasciated Soybean Germplasm Line BARC‐10. Crop Science. 34(1). 318–318. 1 indexed citations
3.
Schapaugh, W. T., et al.. (1994). Amino Acid Profile of High Seed Protein Soybean. Crop Science. 34(1). 207–209. 18 indexed citations
4.
Leffel, R. C.. (1994). Registration of Six Pairs of BARC‐11 Soybean Near‐Isogenic Lines, Fasciated vs. Normal. Crop Science. 34(1). 321–321. 4 indexed citations
5.
Leffel, R. C., et al.. (1993). Agronomic Performance of Fasciated Soybean Genotypes and Their Isogenic Lines. Crop Science. 33(3). 427–432. 6 indexed citations
6.
Leffel, R. C., et al.. (1993). Agronomic Performance and Economic Value of High‐Seed‐Protein Soybean. jpa. 6(3). 365–368. 24 indexed citations
7.
Leffel, R. C., et al.. (1992). Nitrogen Metabolism of Soybean Genotypes Selected for Seed Composition, Fasciated Stem, or Harvest Index. Crop Science. 32(6). 1428–1432. 4 indexed citations
8.
Leffel, R. C.. (1990). Economic Models and Breeding Strategies for Soybean Improvement. jpa. 3(4). 582–586. 4 indexed citations
9.
Leffel, R. C.. (1988). High Protein Lines and Chemical Constituent Pricing in Soybean. jpa. 1(2). 111–115. 7 indexed citations
10.
Howell, R. K., et al.. (1980). Field Testing Soybeans for Residual Effects of Air Pollution and Seed Size on Crop Yield. Journal of Environmental Quality. 9(1). 66–68. 3 indexed citations
11.
Haskins, F. A., H. J. Gorz, & R. C. Leffel. (1972). Form and level of coumarin in deer’s tongue,Trilisa odoratissima. Economic Botany. 26(1). 44–48. 2 indexed citations
12.
13.
Leffel, R. C., et al.. (1964). Persistence of Ladino Clover, Trifolium repens L.1. Agronomy Journal. 56(1). 11–14. 8 indexed citations
14.
Cohen, Maimon M. & R. C. Leffel. (1963). Cytology of Pseudo‐Self‐Compatibility in Ladino White Clover, Trifolium repens L.1. Crop Science. 3(5). 430–433. 2 indexed citations
15.
Leffel, R. C.. (1961). Plant Lodging as a Selection Criterion in Soybean Breeding1. Crop Science. 1(5). 346–349. 5 indexed citations
16.
Leffel, R. C. & W. D. Hanson. (1961). Early Generation Testing of Diallel Crosses of Soybeans1. Crop Science. 1(3). 169–174. 17 indexed citations
17.
Johnson, H. W., H. A. Borthwick, & R. C. Leffel. (1960). Effects of Photoperiod and Time of Planting on Rates of Development of the Soybean in Various Stages of the Life Cycle. Botanical Gazette. 122(2). 77–95. 49 indexed citations
18.
Leffel, R. C.. (1960). Plant lodging as a selection criterion in soybean breeding.. 2 indexed citations
19.
Leffel, R. C., et al.. (1955). Evaluation of Combining Ability in Dactylis glomerata L. III. General and Specific Effects1. Agronomy Journal. 47(8). 370–373. 8 indexed citations
20.
Leffel, R. C., et al.. (1952). Parent‐inbred Progeny Relationships of Selected Orchardgrass Clones1. Agronomy Journal. 44(9). 481–486. 26 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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