A. G. Spiers

876 total citations
53 papers, 704 citations indexed

About

A. G. Spiers is a scholar working on Plant Science, Cell Biology and Molecular Biology. According to data from OpenAlex, A. G. Spiers has authored 53 papers receiving a total of 704 indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Plant Science, 31 papers in Cell Biology and 18 papers in Molecular Biology. Recurrent topics in A. G. Spiers's work include Plant Pathogens and Fungal Diseases (31 papers), Yeasts and Rust Fungi Studies (17 papers) and Bioenergy crop production and management (13 papers). A. G. Spiers is often cited by papers focused on Plant Pathogens and Fungal Diseases (31 papers), Yeasts and Rust Fungi Studies (17 papers) and Bioenergy crop production and management (13 papers). A. G. Spiers collaborates with scholars based in New Zealand, United Kingdom and India. A. G. Spiers's co-authors include D. H. Hopcroft, J.H.C. Woudenberg, P.W. Crous, J. de Gruyter, M.M. Aveskamp, Di Brewster, W. R. Edwards, Vincent G. M. Bus, Susan E. Gardiner and Simon V. Fowler and has published in prestigious journals such as Persoonia - Molecular Phylogeny and Evolution of Fungi, New Zealand Journal of Agricultural Research and New Zealand Journal of Botany.

In The Last Decade

A. G. Spiers

52 papers receiving 645 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
A. G. Spiers New Zealand 13 547 473 300 113 94 53 704
E. G. Kuhlman United States 15 533 1.0× 392 0.8× 313 1.0× 72 0.6× 132 1.4× 55 713
Paul J. Zambino United States 18 651 1.2× 449 0.9× 433 1.4× 93 0.8× 223 2.4× 40 913
R. L. Doudrick United States 15 710 1.3× 217 0.5× 369 1.2× 121 1.1× 46 0.5× 28 860
W. A. Heather Australia 13 344 0.6× 193 0.4× 189 0.6× 45 0.4× 92 1.0× 61 517
Jean Pinon France 14 331 0.6× 143 0.3× 258 0.9× 45 0.4× 84 0.9× 50 566
R. F. Patton United States 10 237 0.4× 165 0.3× 161 0.5× 48 0.4× 72 0.8× 29 355
Juha Kaitera Finland 17 611 1.1× 498 1.1× 490 1.6× 84 0.7× 110 1.2× 79 778
George B. Cummins United States 14 1.0k 1.8× 740 1.6× 1.0k 3.4× 168 1.5× 40 0.4× 73 1.3k
Monique L. Sakalidis United States 12 527 1.0× 522 1.1× 222 0.7× 45 0.4× 131 1.4× 32 638
Reinhard Berndt Switzerland 11 547 1.0× 438 0.9× 381 1.3× 114 1.0× 158 1.7× 71 712

Countries citing papers authored by A. G. Spiers

Since Specialization
Citations

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

Fields of papers citing papers by A. G. Spiers

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by A. G. Spiers. 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 A. G. Spiers. The network helps show where A. G. Spiers may publish in the future.

Co-authorship network of co-authors of A. G. Spiers

This figure shows the co-authorship network connecting the top 25 collaborators of A. G. Spiers. A scholar is included among the top collaborators of A. G. Spiers 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 A. G. Spiers. A. G. Spiers 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.
Brewster, Di, A. G. Spiers, & D. H. Hopcroft. (1997). Biocontrol of Phytophthora cactorum in vitro with Enterobacter aerogenes. New Zealand Journal of Crop and Horticultural Science. 25(1). 9–18. 6 indexed citations
2.
Spiers, A. G. & Di Brewster. (1997). Evaluation of chemical and biological treatments for control of Chondrostereum purpureum infection of pruning wounds in willows, apples, and peaches. New Zealand Journal of Crop and Horticultural Science. 25(1). 19–31. 11 indexed citations
3.
Bus, Vincent G. M., et al.. (1996). Preliminary screening of apple germplasm for resistance to silverleaf infection. New Zealand Journal of Crop and Horticultural Science. 24(1). 1–6. 6 indexed citations
4.
Spiers, A. G. & D. H. Hopcroft. (1992). Some electron microscope observations of conidium ontogeny of Sphaceloma murrayae on Salix. New Zealand Journal of Botany. 30(3). 353–358. 4 indexed citations
5.
Spiers, A. G. & D. H. Hopcroft. (1990). Some electron microscope observations of Phlyctema vagabunda on Salix. New Zealand Journal of Botany. 28(1). 67–72. 1 indexed citations
6.
Spiers, A. G. & D. H. Hopcroft. (1990). Ultrastructural studies of interactions between resistant and susceptible poplar cultivars and the rusts, Melampsora medusae and Melampsora larici‐populina. New Zealand Journal of Botany. 28(3). 307–322. 6 indexed citations
7.
Spiers, A. G.. (1989). Comparative studies of conidium morphology of Marssonina species pathogenic to poplars on agar and host tissue. New Zealand Journal of Botany. 27(4). 503–511. 4 indexed citations
8.
Spiers, A. G., et al.. (1989). An ultrastructural study of Pseudomonas syringae pv. syringae infection of poplar and tobacco foliage. New Zealand Journal of Botany. 27(3). 337–345. 2 indexed citations
9.
Spiers, A. G. & D. H. Hopcroft. (1988). Penetration and infection of poplar leaves by urediniospores of Melampsora larici‐populina and Melampsora medusae. New Zealand Journal of Botany. 26(1). 101–111. 13 indexed citations
10.
Spiers, A. G. & D. H. Hopcroft. (1988). Ultrastructural studies of the telial, basidial, and spermatial stages of the willow rust fungus Melampsora coleosporioides in New Zealand. New Zealand Journal of Botany. 26(3). 423–430. 6 indexed citations
11.
Spiers, A. G., W. R. Edwards, & D. H. Hopcroft. (1987). Effects of silverleaf infection on ultrastructure of foliage of Prunus , Rosa , and Populus. New Zealand Journal of Botany. 25(3). 411–423. 13 indexed citations
12.
Spiers, A. G. & D. H. Hopcroft. (1985). Ultrastructural studies of the spermatial and aecial stages of Melampsora larici‐populina and Melampsora epitea on Larix decidua. New Zealand Journal of Botany. 23(1). 101–116. 12 indexed citations
13.
Spiers, A. G.. (1980). Biological control of Agrobacterium species in vitro. New Zealand Journal of Agricultural Research. 23(1). 133–137. 5 indexed citations
14.
Spiers, A. G.. (1980). Biological control of Agrobacterium species on Salix. New Zealand Journal of Agricultural Research. 23(1). 139–142. 4 indexed citations
15.
Spiers, A. G.. (1979). Isolation and characterisation of Agrobacterium species. New Zealand Journal of Agricultural Research. 22(4). 631–639. 12 indexed citations
16.
Spiers, A. G.. (1978). An agar leaf-disc technique for screening the effectiveness and persistence of fungicides for control of Marssonina on Populus.. ˜The œPlant disease reporter. 1 indexed citations
17.
Spiers, A. G.. (1976). Fungicides for control of poplar leaf rust and effects of control on growth of Populus nigra cv. ‘Sempervirens’ and P. × euramericana cv. ‘I‐214’. New Zealand Journal of Crop and Horticultural Science. 4(2). 249–254. 3 indexed citations
18.
Spiers, A. G.. (1974). Control of poplar leaf rust Melampsora larici‐populina in New Zealand. New Zealand Journal of Crop and Horticultural Science. 2(4). 433–436. 4 indexed citations
19.
Spiers, A. G.. (1974). A Pythium disease of willow seedlings. New Zealand Journal of Crop and Horticultural Science. 2(4). 437–440. 2 indexed citations
20.
Spiers, A. G., et al.. (1974). Poplar rusts invade New Zealand.. ˜The œPlant disease reporter. 58(5). 423–427. 33 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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