James A. McWha

534 total citations
27 papers, 408 citations indexed

About

James A. McWha is a scholar working on Plant Science, Agronomy and Crop Science and Molecular Biology. According to data from OpenAlex, James A. McWha has authored 27 papers receiving a total of 408 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Plant Science, 4 papers in Agronomy and Crop Science and 3 papers in Molecular Biology. Recurrent topics in James A. McWha's work include Plant nutrient uptake and metabolism (5 papers), Growth and nutrition in plants (5 papers) and Plant Stress Responses and Tolerance (3 papers). James A. McWha is often cited by papers focused on Plant nutrient uptake and metabolism (5 papers), Growth and nutrition in plants (5 papers) and Plant Stress Responses and Tolerance (3 papers). James A. McWha collaborates with scholars based in New Zealand and United Kingdom. James A. McWha's co-authors include Paula E. Jameson, D.L.C. Jackson, John Hillman, Harvey K. Hall, Ross E. Lill, Anthony L. J. Cole, Gavin S. Ross, P. E. H. MINCHIN, David Pearce and Richard P. Pharis and has published in prestigious journals such as PLANT PHYSIOLOGY, New Phytologist and Soil Biology and Biochemistry.

In The Last Decade

James A. McWha

26 papers receiving 359 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
James A. McWha New Zealand 14 357 90 44 38 26 27 408
Frida Garretsen Netherlands 11 349 1.0× 78 0.9× 22 0.5× 23 0.6× 36 1.4× 27 404
Pamela M. Ludford United States 9 299 0.8× 56 0.6× 41 0.9× 41 1.1× 44 1.7× 19 343
D. L. Ketring United States 15 508 1.4× 94 1.0× 72 1.6× 35 0.9× 15 0.6× 34 549
Watkin Williams United Kingdom 9 282 0.8× 77 0.9× 74 1.7× 110 2.9× 23 0.9× 22 402
V. Manga India 10 287 0.8× 83 0.9× 51 1.2× 48 1.3× 44 1.7× 40 356
Marie Bollmark Sweden 7 323 0.9× 177 2.0× 25 0.6× 36 0.9× 9 0.3× 12 358
R. Fordham United Kingdom 10 343 1.0× 66 0.7× 31 0.7× 41 1.1× 13 0.5× 22 386
F. J. Sundstrom United States 13 316 0.9× 107 1.2× 28 0.6× 23 0.6× 20 0.8× 28 365
P. J. Sharkey Australia 8 497 1.4× 135 1.5× 46 1.0× 56 1.5× 53 2.0× 9 589
Mauritz Ramstedt Sweden 9 240 0.7× 97 1.1× 26 0.6× 29 0.8× 12 0.5× 15 310

Countries citing papers authored by James A. McWha

Since Specialization
Citations

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

Fields of papers citing papers by James A. McWha

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of James A. McWha

This figure shows the co-authorship network connecting the top 25 collaborators of James A. McWha. A scholar is included among the top collaborators of James A. McWha 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 James A. McWha. James A. McWha 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.
McWha, James A., et al.. (1990). The Distribution of Abscisic Acid in Pisum sativum Plants during Seed Development. Journal of Plant Physiology. 136(2). 137–142. 14 indexed citations
2.
Clifford, P. E., Gavin S. Ross, & James A. McWha. (1990). Why are the effects of abscisic acid on photosynthate unloading so variable? A possible answer from a sourcelimited experimental system. Journal of Plant Physiology. 137(2). 151–154. 4 indexed citations
3.
Gardingen, P.R. van & James A. McWha. (1988). Transpiration Formulae for Use with the Li-Cor LI-6000 Portable Photosynthesis System. Functional Ecology. 2(1). 119–119. 1 indexed citations
4.
Elder, P.A., et al.. (1987). Development of an indirect enzyme linked immunoassay for abscisic acid. [Pisum sativum]. 1 indexed citations
5.
MINCHIN, P. E. H., et al.. (1987). Direct Evidence of Abscisic Acid Affecting Phloem Unloading within the Seed Coat of Peas. Journal of Plant Physiology. 129(5). 435–441. 23 indexed citations
6.
Ross, Gavin S., Peter A. Elder, James A. McWha, David Pearce, & Richard P. Pharis. (1987). The Development of an Indirect Enzyme Linked Immunoassay for Abscisic Acid. PLANT PHYSIOLOGY. 85(1). 46–50. 35 indexed citations
7.
Jameson, Paula E., et al.. (1985). Changes in cytokinins during initiation and development of potato tubers. Physiologia Plantarum. 63(1). 53–57. 13 indexed citations
8.
Jackson, D.L.C. & James A. McWha. (1984). Grain or coleoptile tip as the source of IAA in cereal shoots?. Plant Cell & Environment. 7(1). 15–21. 2 indexed citations
9.
Jackson, D.L.C. & James A. McWha. (1983). Translocation and Metabolism of Endosperm-Applied [2-14C] Indoleacetic Acid in Etiolated Avena sativa L. Seedlings. PLANT PHYSIOLOGY. 73(2). 316–323. 6 indexed citations
10.
Jackson, D.L.C. & James A. McWha. (1983). Rapid breakdown of indole-3-acetic acid on silica gel thin-layer plates. Journal of Chromatography A. 267. 242–245. 4 indexed citations
11.
Jameson, Paula E., et al.. (1982). ytokinins and Changes in Their Activity During the Development of Grains of Wheat (Triticum aestivum L.). Zeitschrift für Pflanzenphysiologie. 106(1). 27–36. 39 indexed citations
12.
McWha, James A., et al.. (1979). The Effects of Exogenously Applied Abscisic Acid on Bud Burst in Salix spp. Annals of Botany. 44(1). 47–55. 6 indexed citations
13.
Lill, Ross E., James A. McWha, & Anthony L. J. Cole. (1979). The Influence of Volatile Substances from Incubated Litter of Pinus radiata on Seed Germination. Annals of Botany. 43(1). 81–85. 16 indexed citations
14.
McWha, James A., et al.. (1978). The Metabolism and Transport of Abscisic Acid During Grain Fill in Wheat. Journal of Experimental Botany. 29(6). 1299–1308. 31 indexed citations
15.
Mahanty, H. K. & James A. McWha. (1976). Sensitivity of Spirodela oligorrhiza (Kurz) Hegelm. to a polychlorinated biphenyl (Aroclor 1242). New Zealand Journal of Botany. 14(1). 9–12. 8 indexed citations
16.
McWha, James A. & D.L.C. Jackson. (1976). Some Growth Promotive Effects of Abscisic Acid. Journal of Experimental Botany. 27(5). 1004–1008. 20 indexed citations
17.
McWha, James A.. (1975). Changes in Abscisic Acid Levels in Developing Grains of Wheat (Triticum aestivum L.. Journal of Experimental Botany. 26(6). 823–827. 58 indexed citations
18.
McWha, James A. & John Hillman. (1975). Endogenous abscisic acid in lettuce fruits. Zeitschrift für Pflanzenphysiologie. 74(4). 292–297. 10 indexed citations
19.
McWha, James A., J. J. Philipson, John Hillman, & M. B. Wilkins. (1973). Molecular requirements for abscisic acid activity in two bioassay systems. Planta. 109(4). 327–336. 15 indexed citations
20.
McWha, James A. & John Hillman. (1973). Uptake and metabolism of 2-[14C]abscisic acid in lettuce fruits var. Great Lakes. Planta. 110(4). 345–351. 12 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.

Explore authors with similar magnitude of impact

Rankless by CCL
2026