J‐E. HÄLLGREN

774 total citations
10 papers, 223 citations indexed

About

J‐E. HÄLLGREN is a scholar working on Plant Science, Molecular Biology and Global and Planetary Change. According to data from OpenAlex, J‐E. HÄLLGREN has authored 10 papers receiving a total of 223 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Plant Science, 2 papers in Molecular Biology and 2 papers in Global and Planetary Change. Recurrent topics in J‐E. HÄLLGREN's work include Plant responses to elevated CO2 (4 papers), Plant Stress Responses and Tolerance (3 papers) and Light effects on plants (3 papers). J‐E. HÄLLGREN is often cited by papers focused on Plant responses to elevated CO2 (4 papers), Plant Stress Responses and Tolerance (3 papers) and Light effects on plants (3 papers). J‐E. HÄLLGREN collaborates with scholars based in Sweden. J‐E. HÄLLGREN's co-authors include Gunnar Öquist, Martin Strand, Sune Linder, Lennart Granat, E. Troeng, Andreas Richter, Gunnar Wingsle, Anders Mattson, Alf Ekblad and Eva Selstam and has published in prestigious journals such as Plant Cell & Environment, Plant Science and Plant Physiology and Biochemistry.

In The Last Decade

J‐E. HÄLLGREN

10 papers receiving 199 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
J‐E. HÄLLGREN Sweden	9	162	119	56	50	36	10	223
G.A. Pieters Netherlands	10	253 1.6×	147 1.2×	102 1.8×	29 0.6×	26 0.7×	19	327
Sylvia J. L’Hirondelle Canada	10	212 1.3×	112 0.9×	60 1.1×	44 0.9×	153 4.3×	16	309
S. G. GARSED United Kingdom	13	267 1.6×	54 0.5×	117 2.1×	74 1.5×	16 0.4×	17	320
R. K. McConathy United States	7	244 1.5×	146 1.2×	121 2.2×	11 0.2×	61 1.7×	11	309
K. Szente Hungary	10	292 1.8×	149 1.3×	73 1.3×	84 1.7×	26 0.7×	16	357
A.J. Rowland-Bamford United States	9	314 1.9×	152 1.3×	133 2.4×	47 0.9×	9 0.3×	13	344
Hans-Dieter Payer Germany	11	325 2.0×	229 1.9×	269 4.8×	50 1.0×	34 0.9×	15	464
T. Pfirrmann Germany	10	387 2.4×	183 1.5×	240 4.3×	15 0.3×	39 1.1×	12	411
Werner Koch Germany	10	163 1.0×	81 0.7×	83 1.5×	20 0.4×	30 0.8×	17	349
R. J. Kohut United States	9	197 1.2×	97 0.8×	86 1.5×	5 0.1×	59 1.6×	19	234

Countries citing papers authored by J‐E. HÄLLGREN

Since Specialization

Citations

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

Fields of papers citing papers by J‐E. HÄLLGREN

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J‐E. HÄLLGREN. 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‐E. HÄLLGREN. The network helps show where J‐E. HÄLLGREN may publish in the future.

Co-authorship network of co-authors of J‐E. HÄLLGREN

This figure shows the co-authorship network connecting the top 25 collaborators of J‐E. HÄLLGREN. A scholar is included among the top collaborators of J‐E. HÄLLGREN 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‐E. HÄLLGREN. J‐E. HÄLLGREN is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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10 of 10 papers shown

Wingsle, Gunnar, Anders Mattson, Alf Ekblad, J‐E. HÄLLGREN, & Eva Selstam. (1992). Activities of glutathione reductase and superoxide dismutase in relation to changes of lipids and pigments due to ozone in seedlings of Pinus sylvestris (L.). Plant Science. 82(2). 167–178. 27 indexed citations

HÄLLGREN, J‐E., et al.. (1990). Photosynthesis of Scots pine in the field after night frosts during summer. Plant Physiology and Biochemistry. 28(4). 437–445. 40 indexed citations

Samuelsson, Göran, et al.. (1985). A comparison between three methods of measuring photosynthetic uptake of inorganic carbon in algae. Photosynthetica. 19(4). 578–585. 7 indexed citations

Öquist, Gunnar, et al.. (1982). Photosynthetic efficiency during ontogenesis of leaves of Betula pendula. Plant Cell & Environment. 5(1). 17–21. 10 indexed citations

HÄLLGREN, J‐E., Sune Linder, Andreas Richter, E. Troeng, & Lennart Granat. (1982). Uptake of SO2 in shoots of Scots pine: field measurements of net flux of sulphur in relation to stomatal conductance. Plant Cell & Environment. 5(1). 75–83. 32 indexed citations

HÄLLGREN, J‐E., Sune Linder, Andreas S. Richter, E. Troeng, & Lennart Granat. (1982). Uptake of SO₂ in shoots of Scots pine: field measurements of net flux of sulphur in relation to stomatal conductance. Plant Cell & Environment. 5(1). 75–83. 26 indexed citations

Öquist, Gunnar, et al.. (1982). Photosynthetic efficiency during ontogenesis of leaves ofBetula pendula. Plant Cell & Environment. 5(1). 17–21. 8 indexed citations

Öquist, Gunnar, et al.. (1982). Photosynthetic efficiency of Betula pendula acclimated to different quantum flux densities. Plant Cell & Environment. 5(1). 9–15. 32 indexed citations

Öquist, Gunnar, et al.. (1982). Photosynthetic efficiency of Betula pendula acclimated to different quantum flux densities. Plant Cell & Environment. 5(1). 9–15. 14 indexed citations

10.

Öquist, Gunnar, et al.. (1978). An apparatus for measuring photosynthetic quantum yields and quanta absorption spectra of intact plants. Plant Cell & Environment. 1(1). 21–27. 27 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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