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Donald L. Smith

Donald L. Smith

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Plant Science and Agronomy
Canada
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Plant Science and Agronomy 88 308 287 3 3 386 28022

Donald L. Smith publications per year

The chart shows the history of publications by Donald L. Smith between 1985 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Donald L. Smith published across 41 years, from 1985 to 2025, averaging 10.9 papers a year. Output peaked at 37 publications in 2023. 18 of the 446 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1985 to 2025. Vertical axis: number of publications, 0 to 37. Peak 37 publications in 2023. 1985: 2 publications 1986: 2 publications 1987: 2 publications 1988: 0 publications 1989: 2 publications 1990: 1 publication 1991: 11 publications 1992: 10 publications 1993: 10 publications 1994: 13 publications 1995: 11 publications 1996: 8 publications 1997: 18 publications 1998: 14 publications 1999: 14 publications 2000: 20 publications 2001: 14 publications 2002: 21 publications 2003: 15 publications 2004: 6 publications 2005: 10 publications 2006: 18 publications 2007: 9 publications 2008: 13 publications 2009: 14 publications 2010: 7 publications 2011: 7 publications 2012: 4 publications 2013: 8 publications 2014: 9 publications 2015: 9 publications 2016: 13 publications 2017: 9 publications 2018: 7 publications 2019: 7 publications 2020: 13 publications 2021: 21 publications 2022: 19 publications 2023: 37 publications 2024: 10 publications 2025: 8 publications
1985 2025

446 publications in total across all disciplines

View publications per year as a table
Donald L. Smith: publications per year, 1985 to 2025
Year Publications
1985 2
1986 2
1987 2
1988 0
1989 2
1990 1
1991 11
1992 10
1993 10
1994 13
1995 11
1996 8
1997 18
1998 14
1999 14
2000 20
2001 14
2002 21
2003 15
2004 6
2005 10
2006 18
2007 9
2008 13
2009 14
2010 7
2011 7
2012 4
2013 8
2014 9
2015 9
2016 13
2017 9
2018 7
2019 7
2020 13
2021 21
2022 19
2023 37
2024 10
2025 8
Total 446
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Donald L. Smith publication distribution in Plant Science and Agronomy in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Plant Science and Agronomy in 2026. The highlighted bar marks where Donald L. Smith sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 88 bars. Horizontal axis: publications, 36–40 to 467+. Vertical axis: number of scientists, 0 to 255. Most scientists, 255, have 111–115 publications. The last bar groups every scientist with 467 publications or more. The highlighted bar, 386–390 publications, is where this scientist sits. 36–40 publications: 2 scientists 41–45 publications: 7 scientists 46–50 publications: 40 scientists 51–55 publications: 58 scientists 56–60 publications: 60 scientists 61–65 publications: 107 scientists 66–70 publications: 130 scientists 71–75 publications: 153 scientists 76–80 publications: 191 scientists 81–85 publications: 199 scientists 86–90 publications: 206 scientists 91–95 publications: 218 scientists 96–100 publications: 226 scientists 101–105 publications: 227 scientists 106–110 publications: 247 scientists 111–115 publications: 255 scientists 116–120 publications: 253 scientists 121–125 publications: 233 scientists 126–130 publications: 219 scientists 131–135 publications: 201 scientists 136–140 publications: 194 scientists 141–145 publications: 176 scientists 146–150 publications: 157 scientists 151–155 publications: 147 scientists 156–160 publications: 151 scientists 161–165 publications: 159 scientists 166–170 publications: 137 scientists 171–175 publications: 128 scientists 176–180 publications: 126 scientists 181–185 publications: 98 scientists 186–190 publications: 114 scientists 191–195 publications: 100 scientists 196–200 publications: 90 scientists 201–205 publications: 71 scientists 206–210 publications: 98 scientists 211–215 publications: 70 scientists 216–220 publications: 86 scientists 221–225 publications: 61 scientists 226–230 publications: 58 scientists 231–235 publications: 53 scientists 236–240 publications: 64 scientists 241–245 publications: 39 scientists 246–250 publications: 46 scientists 251–255 publications: 51 scientists 256–260 publications: 36 scientists 261–265 publications: 44 scientists 266–270 publications: 35 scientists 271–275 publications: 30 scientists 276–280 publications: 33 scientists 281–285 publications: 35 scientists 286–290 publications: 36 scientists 291–295 publications: 26 scientists 296–300 publications: 26 scientists 301–305 publications: 31 scientists 306–310 publications: 30 scientists 311–315 publications: 21 scientists 316–320 publications: 29 scientists 321–325 publications: 14 scientists 326–330 publications: 15 scientists 331–335 publications: 15 scientists 336–340 publications: 17 scientists 341–345 publications: 15 scientists 346–350 publications: 12 scientists 351–355 publications: 17 scientists 356–360 publications: 18 scientists 361–365 publications: 12 scientists 366–370 publications: 11 scientists 371–375 publications: 6 scientists 376–380 publications: 6 scientists 381–385 publications: 11 scientists 386–390 publications: 9 scientists 391–395 publications: 10 scientists 396–400 publications: 8 scientists 401–405 publications: 4 scientists 406–410 publications: 9 scientists 411–415 publications: 11 scientists 416–420 publications: 4 scientists 421–425 publications: 7 scientists 426–430 publications: 4 scientists 431–435 publications: 3 scientists 436–440 publications: 5 scientists 441–445 publications: 8 scientists 446–450 publications: 6 scientists 451–455 publications: 7 scientists 456–460 publications: 5 scientists 461–465 publications: 6 scientists 466 publications: 2 scientists 467+ publications: 99 scientists
36–40 publications 467+

This scientist: 386 publications — 97th percentile

97% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 467 publications or more.

View publications distribution as a table
Number of Plant Science and Agronomy scientists by publication count, Research.com 2026 ranking edition. Based on 6,494 ranked scientists.
Publications Scientists This scientist
36–40 2
41–45 7
46–50 40
51–55 58
56–60 60
61–65 107
66–70 130
71–75 153
76–80 191
81–85 199
86–90 206
91–95 218
96–100 226
101–105 227
106–110 247
111–115 255
116–120 253
121–125 233
126–130 219
131–135 201
136–140 194
141–145 176
146–150 157
151–155 147
156–160 151
161–165 159
166–170 137
171–175 128
176–180 126
181–185 98
186–190 114
191–195 100
196–200 90
201–205 71
206–210 98
211–215 70
216–220 86
221–225 61
226–230 58
231–235 53
236–240 64
241–245 39
246–250 46
251–255 51
256–260 36
261–265 44
266–270 35
271–275 30
276–280 33
281–285 35
286–290 36
291–295 26
296–300 26
301–305 31
306–310 30
311–315 21
316–320 29
321–325 14
326–330 15
331–335 15
336–340 17
341–345 15
346–350 12
351–355 17
356–360 18
361–365 12
366–370 11
371–375 6
376–380 6
381–385 11
386–390 9 386
391–395 10
396–400 8
401–405 4
406–410 9
411–415 11
416–420 4
421–425 7
426–430 4
431–435 3
436–440 5
441–445 8
446–450 6
451–455 7
456–460 5
461–465 6
466 2
467+ 99
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Donald L. Smith D-index placement in Plant Science and Agronomy in 2026

The chart shows the D-index (discipline H-index) distribution of Plant Science and Agronomy scientists ranked by Research.com in 2026. The highlighted bar marks where Donald L. Smith sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 80 bars. Horizontal axis: D-Index, 30 to 109+. Vertical axis: number of scientists, 0 to 288. Most scientists, 288, have 34 D-Index. The last bar groups every scientist with 109 D-Index or more. The highlighted bar, 88 D-Index, is where this scientist sits. 30 D-Index: 200 scientists 31 D-Index: 236 scientists 32 D-Index: 253 scientists 33 D-Index: 283 scientists 34 D-Index: 288 scientists 35 D-Index: 240 scientists 36 D-Index: 246 scientists 37 D-Index: 243 scientists 38 D-Index: 247 scientists 39 D-Index: 229 scientists 40 D-Index: 232 scientists 41 D-Index: 230 scientists 42 D-Index: 228 scientists 43 D-Index: 219 scientists 44 D-Index: 193 scientists 45 D-Index: 164 scientists 46 D-Index: 158 scientists 47 D-Index: 143 scientists 48 D-Index: 131 scientists 49 D-Index: 127 scientists 50 D-Index: 122 scientists 51 D-Index: 122 scientists 52 D-Index: 110 scientists 53 D-Index: 102 scientists 54 D-Index: 98 scientists 55 D-Index: 79 scientists 56 D-Index: 85 scientists 57 D-Index: 88 scientists 58 D-Index: 91 scientists 59 D-Index: 62 scientists 60 D-Index: 61 scientists 61 D-Index: 59 scientists 62 D-Index: 54 scientists 63 D-Index: 61 scientists 64 D-Index: 59 scientists 65 D-Index: 58 scientists 66 D-Index: 41 scientists 67 D-Index: 49 scientists 68 D-Index: 39 scientists 69 D-Index: 32 scientists 70 D-Index: 40 scientists 71 D-Index: 47 scientists 72 D-Index: 38 scientists 73 D-Index: 28 scientists 74 D-Index: 29 scientists 75 D-Index: 28 scientists 76 D-Index: 22 scientists 77 D-Index: 21 scientists 78 D-Index: 25 scientists 79 D-Index: 26 scientists 80 D-Index: 19 scientists 81 D-Index: 16 scientists 82 D-Index: 12 scientists 83 D-Index: 16 scientists 84 D-Index: 14 scientists 85 D-Index: 11 scientists 86 D-Index: 17 scientists 87 D-Index: 13 scientists 88 D-Index: 10 scientists 89 D-Index: 12 scientists 90 D-Index: 18 scientists 91 D-Index: 16 scientists 92 D-Index: 16 scientists 93 D-Index: 17 scientists 94 D-Index: 12 scientists 95 D-Index: 8 scientists 96 D-Index: 9 scientists 97 D-Index: 9 scientists 98 D-Index: 11 scientists 99 D-Index: 12 scientists 100 D-Index: 5 scientists 101 D-Index: 8 scientists 102 D-Index: 4 scientists 103 D-Index: 11 scientists 104 D-Index: 5 scientists 105 D-Index: 9 scientists 106 D-Index: 7 scientists 107 D-Index: 4 scientists 108 D-Index: 8 scientists 109+ D-Index: 99 scientists
30 D-Index 109+

This scientist: 88 D-Index — 95th percentile

95% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 109 D-Index or more.

View D-Index distribution as a table
Number of Plant Science and Agronomy scientists by D-index, Research.com 2026 ranking edition. Based on 6,494 ranked scientists.
D-Index Scientists This scientist
30 200
31 236
32 253
33 283
34 288
35 240
36 246
37 243
38 247
39 229
40 232
41 230
42 228
43 219
44 193
45 164
46 158
47 143
48 131
49 127
50 122
51 122
52 110
53 102
54 98
55 79
56 85
57 88
58 91
59 62
60 61
61 59
62 54
63 61
64 59
65 58
66 41
67 49
68 39
69 32
70 40
71 47
72 38
73 28
74 29
75 28
76 22
77 21
78 25
79 26
80 19
81 16
82 12
83 16
84 14
85 11
86 17
87 13
88 10 88
89 12
90 18
91 16
92 16
93 17
94 12
95 8
96 9
97 9
98 11
99 12
100 5
101 8
102 4
103 11
104 5
105 9
106 7
107 4
108 8
109+ 99
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Research.com Recognitions

  • 2026 - Research.com Plant Science and Agronomy in Canada Leader Award
  • 2025 - Research.com Plant Science and Agronomy in Canada Leader Award
  • 2023 - Research.com Plant Science and Agronomy in Canada Leader Award
  • 2022 - Research.com Plant Science and Agronomy in Canada Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Botany
  • Agronomy
  • Agriculture

The scientist’s investigation covers issues in Agronomy, Botany, Bradyrhizobium japonicum, Poaceae and Cultivar. His research in Agronomy intersects with topics in Photosynthesis and Loam. His Botany research is multidisciplinary, incorporating perspectives in Symbiosis, Rhizosphere and Horticulture.

His studies deal with areas such as Nitrogen fixation, Bradyrhizobium, Genistein and Nod as well as Bradyrhizobium japonicum. His studies in Poaceae integrate themes in fields like Crop yield, Field experiment and Mycorrhiza. His studies deal with areas such as Zea mays and Plant production as well as Cultivar.

His most cited work include:

  • Intracellular and extracellular PGPR: commonalities and distinctions in the plant–bacterium signaling processes (569 citations)
  • Photosynthetic responses of corn and soybean to foliar application of salicylates. (417 citations)
  • Acquisition of Cu, Zn, Mn and Fe by mycorrhizal maize (Zea mays L.) grown in soil at different P and micronutrient levels (283 citations)

What are the main themes of his work throughout his whole career to date?

His primary areas of study are Agronomy, Botany, Poaceae, Cultivar and Horticulture. His Agronomy research integrates issues from Nitrogen fixation and Bradyrhizobium japonicum. His research integrates issues of Legume, Symbiosis, Rhizobacteria and Inoculation in his study of Nitrogen fixation.

His work carried out in the field of Botany brings together such families of science as Bacteria and Root nodule. His biological study deals with issues like Hybrid, which deal with fields such as Canopy and Population density. His work deals with themes such as Randomized block design, Loam, Plant protein and Sowing, which intersect with Cultivar.

He most often published in these fields:

  • Agronomy (58.69%)
  • Botany (26.50%)
  • Poaceae (18.80%)

What were the highlights of his more recent work (between 2013-2021)?

  • Agronomy (58.69%)
  • Rhizobacteria (11.68%)
  • Rhizosphere (8.26%)

In recent papers he was focusing on the following fields of study:

Donald L. Smith mostly deals with Agronomy, Rhizobacteria, Rhizosphere, Biotechnology and Agriculture. Donald L. Smith frequently studies issues relating to Nutrient and Agronomy. The various areas that he examines in his Rhizobacteria study include Shoot, Botany, Horticulture, Nitrogen fixation and Abiotic stress.

His research in Rhizosphere focuses on subjects like Microbiology, which are connected to Bacteria. His Agriculture study combines topics from a wide range of disciplines, such as Plant growth and Microbial inoculant. His Germination research is multidisciplinary, incorporating elements of Peat, Bacillus thuringiensis and Bradyrhizobium japonicum.

Between 2013 and 2021, his most popular works were:

  • Plant hormones and seed germination (273 citations)
  • Plant Growth-Promoting Rhizobacteria: Context, Mechanisms of Action, and Roadmap to Commercialization of Biostimulants for Sustainable Agriculture. (243 citations)
  • Plant Growth Promoting Rhizobacteria in Amelioration of Salinity Stress: A Systems Biology Perspective. (145 citations)

In his most recent research, the most cited papers focused on:

  • Botany
  • Agriculture
  • Ecology

His primary areas of investigation include Agronomy, Rhizobacteria, Biotechnology, Rhizosphere and Germination. The Agronomy study combines topics in areas such as Bradyrhizobium japonicum and Nutrient. His Bradyrhizobium japonicum research is multidisciplinary, incorporating perspectives in Legume, Cultivar, Bacterial growth, Plant physiology and Bacillus thuringiensis.

His biological study spans a wide range of topics, including Nitrogen fixation, Holobiont, Abiotic stress, Biomass and Microbial inoculant. His study in Rhizosphere is interdisciplinary in nature, drawing from both Inoculation and Microbiology. His Germination study results in a more complete grasp of Botany.

Best Publications

  • Plant Growth-Promoting Rhizobacteria: Context, Mechanisms of Action, and Roadmap to Commercialization of Biostimulants for Sustainable Agriculture.

    Rachel Backer;J. Stefan Rokem;Gayathri Ilangumaran;John Lamont

  • Intracellular and extracellular PGPR: commonalities and distinctions in the plant–bacterium signaling processes

    E.J. Gray;D.L. Smith

  • Photosynthetic responses of corn and soybean to foliar application of salicylates.

    Wajahatullah Khan;Balakrishnan Prithiviraj;Donald L. Smith

  • Plant hormones and seed germination

    Mohammad Miransari;D.L. Smith

  • Biomass for a sustainable bioeconomy: An overview of world biomass production and utilization

    Mohammed Antar;Dongmei Lyu;Mahtab Nazari;Ateeq Shah

  • Acquisition of Cu, Zn, Mn and Fe by mycorrhizal maize (Zea mays L.) grown in soil at different P and micronutrient levels

    A. Liu;C. Hamel;R. I. Hamilton;B. L. Ma

  • Plant Growth Promoting Rhizobacteria in Amelioration of Salinity Stress: A Systems Biology Perspective.

    Gayathri Ilangumaran;Donald L Smith

  • Advances in the implementation of the box-counting method of fractal dimension estimation

    K Foroutan-Pour;P Dutilleul;D.L Smith

  • Barriers associated with exercise and community access for individuals with stroke.

    James H. Rimmer;Edward Wang;Donald Smith

  • Enhanced Soybean Plant Growth Resulting from Coinoculation of Bacillus Strains with Bradyrhizobium japonicum

    Yuming Bai;Xiaomin Zhou;Donald L. Smith

  • Isolation of plant-growth-promoting Bacillus strains from soybean root nodules

    Yuming Bai;Frederic D'Aoust;Donald L Smith;Brian T Driscoll

  • Canopy structure, light interception, and photosynthesis in maize

    D. W. Stewart;C. Costa;L. M. Dwyer;D. L. Smith

  • Chitosan and chitin oligomers increase phenylalanine ammonia-lyase and tyrosine ammonia-lyase activities in soybean leaves.

    Wajahatullah Khan;Balakrishnan Prithiviraj;Donald L. Smith

  • PGPR in Agriculture: A Sustainable Approach to Increasing Climate Change Resilience

    Ateeq Shah;Mahtab Nazari;Mohammad Antar;Levini A. Msimbira

  • Estimation of future glucose concentrations with subject-specific recursive linear models.

    Meriyan Eren-Oruklu;Ali Cinar;Lauretta Quinn;Donald Smith

  • Plant Growth Promoting Rhizobacteria and Soybean (Glycine max (L.) Merr.) Nodulation and Nitrogen Fixation at Suboptimal Root Zone Temperatures

    Feng Zhang;Narjes Dashti;R.K. Hynes;Donald L. Smith

  • Effect of Foliar Application of Chitin and Chitosan Oligosaccharides on Photosynthesis of Maize and Soybean

    W.M. Khan;B. Prithiviraj;D.L. Smith

  • Plant growth promoting rhizobacteria accelerate nodulation and increase nitrogen fixation activity by field grown soybean [Glycine max (L.) Merr.] under short season conditions

    N. Dashti;F. Zhang;R. Hynes;D.L. Smith

  • INTER-RELATIONSHIPS OF APPLIED NITROGEN, SPAD, AND YIELD OF LEAFY AND NON-LEAFY MAIZE GENOTYPES

    Carlos Costa;Lianne M. Dwyer;Pierre Dutilleul;Doug W. Stewart

  • Intercropping corn with soybean, lupin and forages: yield component responses

    K Carruthers;B Prithiviraj;Q Fe;D Cloutier

  • From yogurt to yield: Potential applications of lactic acid bacteria in plant production

    John R. Lamont;Olivia Wilkins;Margaret Bywater-Ekegärd;Donald L. Smith

Frequent Co-Authors

Balakrishnan Prithiviraj
Balakrishnan Prithiviraj Dalhousie University
Lianne M. Dwyer
Lianne M. Dwyer Agriculture and Agriculture-Food Canada
Chandra A. Madramootoo
Chandra A. Madramootoo McGill University
Bao-Luo Ma
Bao-Luo Ma Agriculture and Agriculture-Food Canada
Trevor C. Charles
Trevor C. Charles University of Waterloo
Philippe Seguin
Philippe Seguin McGill University
Chantal Hamel
Chantal Hamel Agriculture and Agriculture-Food Canada
Shiv O. Prasher
Shiv O. Prasher McGill University
Diane E. Mather
Diane E. Mather University of Adelaide
Heidi Webber
Heidi Webber Leibniz Centre for Agricultural Landscape Research

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