J. H. Helm

1.3k total citations
61 papers, 950 citations indexed

About

J. H. Helm is a scholar working on Plant Science, Agronomy and Crop Science and Environmental Chemistry. According to data from OpenAlex, J. H. Helm has authored 61 papers receiving a total of 950 indexed citations (citations by other indexed papers that have themselves been cited), including 48 papers in Plant Science, 27 papers in Agronomy and Crop Science and 7 papers in Environmental Chemistry. Recurrent topics in J. H. Helm's work include Wheat and Barley Genetics and Pathology (34 papers), Plant Disease Resistance and Genetics (18 papers) and Genetics and Plant Breeding (15 papers). J. H. Helm is often cited by papers focused on Wheat and Barley Genetics and Pathology (34 papers), Plant Disease Resistance and Genetics (18 papers) and Genetics and Plant Breeding (15 papers). J. H. Helm collaborates with scholars based in Canada, Germany and Netherlands. J. H. Helm's co-authors include P. E. Juskiw, P. E. Jedel, D. F. Salmon, J.J. Kennelly, G.R. Khorasani, P. A. Burnett, E. K. Okine, T. Kelly Turkington, K. Xi and S. Parmar and has published in prestigious journals such as Journal of Dairy Science, Plant and Soil and Journal of Animal Science.

In The Last Decade

J. H. Helm

59 papers receiving 830 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
J. H. Helm Canada 18 573 564 108 101 84 61 950
R. Fychan United Kingdom 16 258 0.5× 435 0.8× 203 1.9× 61 0.6× 89 1.1× 40 795
R.B. Muntifering United States 15 467 0.8× 264 0.5× 70 0.6× 74 0.7× 38 0.5× 41 777
B. Boller Switzerland 22 827 1.4× 580 1.0× 294 2.7× 89 0.9× 71 0.8× 59 1.2k
H. S. Easton New Zealand 21 380 0.7× 526 0.9× 83 0.8× 138 1.4× 139 1.7× 60 1.3k
E. K. Okine Canada 17 133 0.2× 680 1.2× 74 0.7× 145 1.4× 89 1.1× 38 891
Alan V. Stewart New Zealand 22 538 0.9× 569 1.0× 84 0.8× 151 1.5× 234 2.8× 73 1.4k
Lenis Alton Nelson United States 22 1.3k 2.3× 517 0.9× 117 1.1× 90 0.9× 19 0.2× 103 1.5k
Ann R. Blount United States 21 741 1.3× 662 1.2× 235 2.2× 59 0.6× 152 1.8× 128 1.3k
Yixin Shen China 15 350 0.6× 593 1.1× 58 0.5× 190 1.9× 57 0.7× 61 956
B. Deinum Netherlands 17 278 0.5× 716 1.3× 151 1.4× 112 1.1× 231 2.8× 35 921

Countries citing papers authored by J. H. Helm

Since Specialization
Citations

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

Fields of papers citing papers by J. H. Helm

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J. H. Helm. 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 J. H. Helm. The network helps show where J. H. Helm may publish in the future.

Co-authorship network of co-authors of J. H. Helm

This figure shows the co-authorship network connecting the top 25 collaborators of J. H. Helm. A scholar is included among the top collaborators of J. H. Helm 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 J. H. Helm. J. H. Helm 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.
Helm, J. H., Jan Muhr, Ansgar Kahmen, et al.. (2023). Carbon dynamics in long-term starving poplar trees—the importance of older carbohydrates and a shift to lipids during survival. Tree Physiology. 44(13). 173–185. 5 indexed citations
2.
Osman, Mohamed, Xinyao He, F. Capettini, J. H. Helm, & P. K. Singh. (2019). Phenotypic Characterization of Canadian Barley Advanced Breeding Lines for Multiple Disease Resistance. Cereal Research Communications. 47(3). 484–495. 3 indexed citations
3.
Reich, Martín, Tahereh A. Aghajanzadeh, J. H. Helm, et al.. (2016). Chloride and sulfate salinity differently affect biomass, mineral nutrient composition and expression of sulfate transport and assimilation genes in Brassica rapa. Plant and Soil. 411(1-2). 319–332. 72 indexed citations
4.
Katragunta, Kumar, K. Xi, T. Kelly Turkington, et al.. (2011). Evaluation of a detached leaf assay to measure fusarium head blight resistance components in barley. Canadian Journal of Plant Pathology. 33(3). 364–374. 14 indexed citations
5.
Kumar, Kundan, K. Xi, Alan J. S. Murray, et al.. (2010). Comparison of barley seed proteomic profiles associated with fusarium head blight reaction. Canadian Journal of Plant Pathology. 32(4). 496–512. 6 indexed citations
6.
Oba, M., et al.. (2007). Effect of Grains Differing in Expected Ruminal Fermentability on the Productivity of Lactating Dairy Cows. Journal of Dairy Science. 90(6). 2852–2859. 36 indexed citations
7.
Htoo, John K, et al.. (2007). Effect of low-phytate barley or phytase supplementation to a barley-soybean meal diet on phosphorus retention and excretion by grower pigs1,2. Journal of Animal Science. 85(11). 2941–2948. 11 indexed citations
8.
Nyachiro, J. M., et al.. (2007). Registration of ‘Sundre’ Barley. Journal of Plant Registrations. 1(1). 35–36. 3 indexed citations
9.
Xi, K., T. Kelly Turkington, J. H. Helm, et al.. (2003). Distribution of Pathotypes of Rhynchosporium secalis and Cultivar Reaction on Barley in Alberta. Plant Disease. 87(4). 391–396. 14 indexed citations
10.
Helm, J. H., et al.. (2001). Registration of ‘Peregrine’ Barley. Crop Science. 41(6). 1991–1992. 2 indexed citations
11.
Helm, J. H., et al.. (2000). Registration of 'Jaeger' barley. Crop Science. 40(3). 851–852. 3 indexed citations
12.
Khorasani, G.R., J. H. Helm, & J.J. Kennelly. (2000). In situ rumen degradation characteristics of sixty cultivars of barley grain. Canadian Journal of Animal Science. 80(4). 691–701. 29 indexed citations
13.
Juskiw, P. E., J. H. Helm, & D. F. Salmon. (2000). Postheading Biomass Distribution for Monocrops and Mixtures of Small Grain Cereals. Crop Science. 40(1). 148–158. 22 indexed citations
14.
Xi, K., J. H. Helm, P. A. Burnett, T. Kelly Turkington, & A. Tekauz. (1999). Determining quantitative resistance of barley cultivars at the seedling stage to net blotch caused byPyrenophora teres. Canadian Journal of Plant Pathology. 21(3). 284–290. 4 indexed citations
15.
Jedel, P. E., J. H. Helm, & P. A. Burnett. (1998). Yield, quality and stress tolerance of barley mixtures in central Alberta. Canadian Journal of Plant Science. 78(3). 429–436. 29 indexed citations
16.
Khorasani, G.R., E. K. Okine, J.J. Kennelly, & J. H. Helm. (1993). Effect of Whole Crop Cereal Grain Silage Substituted for Alfalfa Silage on Performance of Lactating Dairy Cows. Journal of Dairy Science. 76(11). 3536–3546. 48 indexed citations
17.
Salmon, D. F., et al.. (1992). Registration of ‘Pika’ Winter Triticale. Crop Science. 32(4). 1074–1074. 2 indexed citations
18.
Jedel, P. E. & J. H. Helm. (1991). Lodging Effects on a Semidwarf and Two Standard Barley Cultivars. Agronomy Journal. 83(1). 158–161. 33 indexed citations
19.
Salmon, D. F. & J. H. Helm. (1985). Preharvest And Postharvest Dormancy In Spring Triticale. Agronomy Journal. 77(4). 649–652. 4 indexed citations
20.
Helm, J. H., et al.. (1983). Registration of Empress Barley. Crop Science. 23(6). 1217–1218. 1 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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