Á. Helgadóttir

2.1k total citations
70 papers, 408 citations indexed

About

Á. Helgadóttir is a scholar working on Plant Science, Agronomy and Crop Science and Ecology. According to data from OpenAlex, Á. Helgadóttir has authored 70 papers receiving a total of 408 indexed citations (citations by other indexed papers that have themselves been cited), including 45 papers in Plant Science, 33 papers in Agronomy and Crop Science and 16 papers in Ecology. Recurrent topics in Á. Helgadóttir's work include Botany and Plant Ecology Studies (23 papers), Ruminant Nutrition and Digestive Physiology (21 papers) and Agronomic Practices and Intercropping Systems (15 papers). Á. Helgadóttir is often cited by papers focused on Botany and Plant Ecology Studies (23 papers), Ruminant Nutrition and Digestive Physiology (21 papers) and Agronomic Practices and Intercropping Systems (15 papers). Á. Helgadóttir collaborates with scholars based in Iceland, Norway and Denmark. Á. Helgadóttir's co-authors include Henning Høgh‐Jensen, R. W. Snaydon, Ralf Loges, Jim Rasmussen, Jørgen Eriksen, R. P. Collins, Sigríður Dalmannsdóttir, A. Lüscher, B. E. Frankow‐Lindberg and Matthias Suter and has published in prestigious journals such as Soil Biology and Biochemistry, Journal of Applied Ecology and Plant and Soil.

In The Last Decade

Á. Helgadóttir

62 papers receiving 375 citations

Peers

Á. Helgadóttir

ACS

EEBS

ECOLO

P. C. D. Newton New Zealand

Alistair Black New Zealand

Catherine Dhont Canada

P. E. Quigley Australia

L. Olea Spain

R. H. Fletcher New Zealand

V. J. Thomas New Zealand

Jannie Maj Olsen Denmark

RF Brown Australia

Libère Nkurunziza Sweden

P. C. D. Newton New Zealand

Á. Helgadóttir

235 ×1.0

155 ×0.8

ACS

144 ×1.4

74 ×1.3

EEBS

59 ×1.0

ECOLO

Citations per year, relative to Á. Helgadóttir Á. Helgadóttir (= 1×) peers P. C. D. Newton

Countries citing papers authored by Á. Helgadóttir

Since Specialization

Citations

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

Fields of papers citing papers by Á. Helgadóttir

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Á. Helgadóttir

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

All Works

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20 of 20 papers shown

Hansen, Pernille, Odd Arne Rognli, Gintaras Brazauskas, et al.. (2025). Genomic prediction of agronomic traits in perennial ryegrass (Lolium perenne L.) and genotype x environment interactions at the limit of the species distribution. Theoretical and Applied Genetics. 138(11). 281–281.

López‐Sánchez, Aida, et al.. (2013). Tree and grazing influence on herbaceous pasture diversity in the Dehesa agroforestry system.. Pediatric Research. 17(4). 391–393. 2 indexed citations

Helgadóttir, Á., et al.. (2013). Changes in floristic composition of the mountain pasture sward after the abandonment of sheep grazing.. 418–420. 5 indexed citations

Wróbel, B., et al.. (2013). Ensilage of a meadow sward with a large proportion of red clover.. 246–248.

Nielsen, Anders, et al.. (2013). Potassium as a means to increase production and NP-capture from permanent grassland on organic soil.. 569–571. 1 indexed citations

Finn, John A., L. Kirwan, John Connolly, et al.. (2012). Four-species grass-clover mixtures demonstrate transgessive overyielding and weed suppression in a 3-year continental-scale experiment.. 64–66. 3 indexed citations

Göransson, Magnus, et al.. (2012). Genetic shift in white clover (Trifolium repens) after natural selection in a marginal area. 41–50. 3 indexed citations

Collins, R. P., B. E. Frankow‐Lindberg, Á. Helgadóttir, et al.. (2010). AFLP analysis of genetic differentiation in legume germplasm in contrasting environments. 51–53. 1 indexed citations

Helgadóttir, Á., John Connolly, R. P. Collins, et al.. (2008). The benefits of sward diversity for cultivated grasslands. 39–51. 3 indexed citations

10.

Helgadóttir, Á., et al.. (2008). Combining Winter Hardiness and Forage Yield in White Clover (Trifolium repens) Cultivated in Northern Environments. Annals of Botany. 102(5). 825–834. 6 indexed citations

11.

Veteläinen, Merja, Á. Helgadóttir, & Jens Weibull. (2007). Climatic change and genetic resources in northern Europe. 1 indexed citations

12.

Helgadóttir, Á., et al.. (2005). The effects of grass species and nitrogen fertilizer on white clover growth and mixture yield in a northern maritime environment. 2 indexed citations

13.

Sebastià, Maria‐Teresa, A. Lüscher, John Connolly, et al.. (2004). Higher yield and fewer weeds in grass/legume mixtures than in monocultures - 12 sites of COST action 852.. Jukuri (Natural Resources Institute Finland (Luke)). 483–485. 4 indexed citations

14.

Helgadóttir, Á., Sigríður Dalmannsdóttir, A. Lüscher, et al.. (2004). Adaptation of white clover (Trifolium repens L.) to a cool and short growing season.. 395–397. 1 indexed citations

15.

Helgadóttir, Á., et al.. (2002). Timothy (Phleum pratense L.) and meadow grass (Poa pratensis L.) as companions with white clover (Trifolium repens L.) in a northern marginal environment. 1927–1354711703. 1 indexed citations

16.

Helgadóttir, Á., et al.. (2000). Domestication of perennial lupins for northern regions.. 147–149. 2 indexed citations

17.

Helgadóttir, Á., et al.. (2000). Prebreeding of Red Clover (Trifolium pratenseL.) for Northern Areas. Acta Agriculturae Scandinavica Section B - Soil & Plant Science. 50(3). 187–190. 7 indexed citations

18.

Helgadóttir, Á., et al.. (1995). Analysis of a site x year experiment with timothy polycross progeny. Euphytica. 82(3). 241–251. 3 indexed citations

19.

Helgadóttir, Á. & R. W. Snaydon. (1986). Patterns of Genetic Variation Among Populations of Poa pratensis L. and Agrostis capillaris L. from Britain and Iceland. Journal of Applied Ecology. 23(2). 703–703. 18 indexed citations

20.

Helgadóttir, Á. & R. W. Snaydon. (1985). Competitive Interactions between Populations of Poa pratensis and Agrostis tenuis from Ecologically-Contrasting Environments. Journal of Applied Ecology. 22(2). 525–525. 3 indexed citations

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