World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking National Ranking Publications Citations
Plant Science and Agronomy 70 732 209 192 13670

Donald W. Roberts publications per year

The chart shows the history of publications by Donald W. Roberts between 1962 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Donald W. Roberts published across 64 years, from 1962 to 2025, averaging 4 papers a year. Output peaked at 17 publications in 1992. 1 of the 254 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1962 to 2025. Vertical axis: number of publications, 0 to 17. Peak 17 publications in 1992. 1962: 1 publication 1963: 1 publication 1964: 0 publications 1965: 0 publications 1966: 2 publications 1967: 1 publication 1968: 1 publication 1969: 1 publication 1970: 2 publications 1971: 1 publication 1972: 1 publication 1973: 8 publications 1974: 3 publications 1975: 4 publications 1976: 3 publications 1977: 3 publications 1978: 2 publications 1979: 4 publications 1980: 1 publication 1981: 1 publication 1982: 4 publications 1983: 8 publications 1984: 0 publications 1985: 6 publications 1986: 8 publications 1987: 5 publications 1988: 4 publications 1989: 13 publications 1990: 11 publications 1991: 14 publications 1992: 17 publications 1993: 3 publications 1994: 9 publications 1995: 8 publications 1996: 13 publications 1997: 8 publications 1998: 2 publications 1999: 1 publication 2000: 4 publications 2001: 5 publications 2002: 7 publications 2003: 2 publications 2004: 4 publications 2005: 7 publications 2006: 4 publications 2007: 3 publications 2008: 3 publications 2009: 3 publications 2010: 11 publications 2011: 4 publications 2012: 3 publications 2013: 0 publications 2014: 2 publications 2015: 5 publications 2016: 1 publication 2017: 2 publications 2018: 3 publications 2019: 0 publications 2020: 1 publication 2021: 3 publications 2022: 0 publications 2023: 2 publications 2024: 0 publications 2025: 1 publication
1962 2025

254 publications in total across all disciplines

View publications per year as a table
Donald W. Roberts: publications per year, 1962 to 2025
Year Publications
1962 1
1963 1
1964 0
1965 0
1966 2
1967 1
1968 1
1969 1
1970 2
1971 1
1972 1
1973 8
1974 3
1975 4
1976 3
1977 3
1978 2
1979 4
1980 1
1981 1
1982 4
1983 8
1984 0
1985 6
1986 8
1987 5
1988 4
1989 13
1990 11
1991 14
1992 17
1993 3
1994 9
1995 8
1996 13
1997 8
1998 2
1999 1
2000 4
2001 5
2002 7
2003 2
2004 4
2005 7
2006 4
2007 3
2008 3
2009 3
2010 11
2011 4
2012 3
2013 0
2014 2
2015 5
2016 1
2017 2
2018 3
2019 0
2020 1
2021 3
2022 0
2023 2
2024 0
2025 1
Total 254
Download as CSV

Donald W. Roberts 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 W. Roberts 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, 191–195 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: 192 publications — 75th percentile

75% 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
191–195 100 192
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
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
Download as CSV

Donald W. Roberts 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 W. Roberts 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, 70 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: 70 D-Index — 89th percentile

89% 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 70
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
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
Download as CSV

Overview

What is he best known for?

The fields of study he is best known for:

  • Fungus
  • Botany
  • Ecology

The scientist’s investigation covers issues in Metarhizium anisopliae, Botany, Conidium, Germination and Microbiology. In his study, Fungus is strongly linked to Entomopathogenic fungus, which falls under the umbrella field of Metarhizium anisopliae. Fungi imperfecti and Metarhizium are the subjects of his Botany studies.

He focuses mostly in the field of Conidium, narrowing it down to topics relating to Mycelium and, in certain cases, Mannitol and Trehalose. His Germination study contributes to a more complete understanding of Horticulture. The Microbiology study which covers Cuticle that intersects with Biochemistry and Extracellular.

His most cited work include:

  • Construction of an improved mycoinsecticide overexpressing a toxic protease (330 citations)
  • Metarhizium spp., cosmopolitan insect-pathogenic fungi: mycological aspects. (328 citations)
  • Variability in conidial thermotolerance of Metarhizium anisopliae isolates from different geographic origins (131 citations)

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

His scientific interests lie mostly in Botany, Metarhizium anisopliae, Conidium, Microbiology and Metarhizium. His Botany study often links to related topics such as Horticulture. His Metarhizium anisopliae research includes themes of Appressorium, Spore, Cuticle and Biochemistry.

His Conidium study integrates concerns from other disciplines, such as Entomopathogenic fungus, Mannitol, Germination and Mycelium. His biological study spans a wide range of topics, including Abiotic component and Tick. His work on Metarhizium acridum and Metarhizium flavoviride as part of general Metarhizium study is frequently connected to Mormon cricket, therefore bridging the gap between diverse disciplines of science and establishing a new relationship between them.

He most often published in these fields:

  • Botany (45.00%)
  • Metarhizium anisopliae (41.00%)
  • Conidium (38.00%)

What were the highlights of his more recent work (between 2009-2021)?

  • Metarhizium (27.00%)
  • Conidium (38.00%)
  • Microbiology (29.00%)

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

His main research concerns Metarhizium, Conidium, Microbiology, Metarhizium anisopliae and Botany. His research in the fields of Metarhizium acridum overlaps with other disciplines such as Potato dextrose agar. The Conidium study combines topics in areas such as Germination and Mycelium.

He has researched Microbiology in several fields, including Biochemistry and Tick. His study focuses on the intersection of Metarhizium anisopliae and fields such as Appressorium with connections in the field of Germ tube and Abiotic component. Botany is often connected to Horticulture in his work.

Between 2009 and 2021, his most popular works were:

  • Biological control of insects in Brazil and China: history, current programs and reasons for their successes using entomopathogenic fungi (110 citations)
  • Perspectives on the potential of entomopathogenic fungi in biological control of ticks (88 citations)
  • Stress tolerance and virulence of insect-pathogenic fungi are determined by environmental conditions during conidial formation (87 citations)

Best Publications

  • Metarhizium spp., cosmopolitan insect-pathogenic fungi: mycological aspects.

    Donald W. Roberts;Raymond J. St. Leger

  • Construction of an improved mycoinsecticide overexpressing a toxic protease

    R St Leger;L Joshi;M J Bidochka;D W Roberts

  • Adaptation of proteases and carbohydrases of saprophytic, phytopathogenic and entomopathogenic fungi to the requirements of their ecological niches

    Raymond J. St Leger;Lokesh Joshi;Donald W. Roberts

  • Ambient pH Is a Major Determinant in the Expression of Cuticle-Degrading Enzymes and Hydrophobin by Metarhizium anisopliae

    Raymond J. St. Leger;Lokesh Joshi;Donald W. Roberts

  • Variability in conidial thermotolerance of Metarhizium anisopliae isolates from different geographic origins

    Drauzio E. N. Rangel;Gilberto Ubida Leite Braga;Gilberto Ubida Leite Braga;Anne J. Anderson;Donald W. Roberts

  • Molecular and physiological effects of environmental UV radiation on fungal conidia.

    Gilberto U. L. Braga;Drauzio E. N. Rangel;Éverton K. K. Fernandes;Stephan D. Flint

  • Productionin vitro of appressoria by the entomopathogenic fungusMetarhizium anisopliae

    Raymond J. St.Leger;Tariq M. Butt;Mark S. Goettel;Richard C. Staples

  • Biological control of insects in Brazil and China: history, current programs and reasons for their successes using entomopathogenic fungi

    Zengzhi Li;Sérgio B. Alves;Donald W. Roberts;Meizhen Fan

  • Prepenetration Events during Infection of Host Cuticle by Metarhizium anisopliae

    R.J.St. Leger;M. Goettel;D.W. Roberts;R.C. Staples

  • Both Solar UVA and UVB Radiation Impair Conidial Culturability and Delay Germination in the Entomopathogenic Fungus Metarhizium anisopliae

    Gilberto U. L. Braga;Stephan D. Flint;Charles D. Miller;Anne J. Anderson

  • Variability in response to UV-B among species and strains of Metarhizium isolated from sites at latitudes from 61° N to 54° S

    Gilberto U.L Braga;Stephan D Flint;Charles D Miller;Anne J Anderson

  • Ultrastructural Localization of a Cuticle-degrading Protease Produced by the Entomopathogenic Fungus Metarhizium anisopliae during Penetration of Host (Manduca sexto) Cuticle

    Mark S. Goettel;Raymond J. St Leger;Nancy W. Rizzo;Richard C. Staples

  • Characterization and Ultrastructural Localization of Chitinases From Metarhizium Anisopliae, M. Flavoviride, and Beauveria Bassiana During Fungal Invasion of Host (Manduca Sexta) Cuticle

    L St;L Joshi;M J Bidochka;N W Rizzo

  • Genetic differences in allozymes and in formation of infection structures among isolates of the entomopathogenic fungus Metarhizium anisopliae

    R.J. St. Leger;B. May;L.L. Allee;D.C. Frank

  • Variability in tolerance to UV-B radiation among Beauveria spp. isolates.

    Éverton K.K. Fernandes;Drauzio E.N. Rangel;Áurea M.L. Moraes;Vânia R.E.P. Bittencourt

  • Colorado potato beetle (Coleoptera: Chrysomelidae): Effects of combinations of Beauveria bassiana with insecticides

    T. E. Anderson;A. E. Hajek;Donald W. Roberts;H. K. Preisler

  • Stress tolerance and virulence of insect-pathogenic fungi are determined by environmental conditions during conidial formation

    Drauzio E. N. Rangel;Drauzio E. N. Rangel;Gilberto U. L. Braga;Éverton K. K. Fernandes;Éverton K. K. Fernandes;Chad A. Keyser

  • Effects of physical and nutritional stress conditions during mycelial growth on conidial germination speed, adhesion to host cuticle, and virulence of Metarhizium anisopliae, an entomopathogenic fungus.

    Drauzio E.N. Rangel;Diane G. Alston;Donald W. Roberts

  • Evaluating physical and nutritional stress during mycelial growth as inducers of tolerance to heat and UV-B radiation in Metarhizium anisopliae conidia.

    Drauzio E.N. Rangel;Anne J. Anderson;Donald W. Roberts

  • World-wide distribution of genetic variation among isolates of Beauveria spp.

    R.J. St Leger;L.L. Allee;B. May;R.C. Staples

  • Variations in UV-B tolerance and germination speed of Metarhizium anisopliae conidia produced on insects and artificial substrates.

    Drauzio E.N. Rangel;Gilberto U.L. Braga;Gilberto U.L. Braga;Stephan D. Flint;Anne J. Anderson

  • Cold activity of Beauveria and Metarhizium, and thermotolerance of Beauveria

    Éverton K.K. Fernandes;Drauzio E.N. Rangel;Áurea M.L. Moraes;Vânia R.E.P. Bittencourt

  • Growth of Metarhizium anisopliae on non-preferred carbon sources yields conidia with increased UV-B tolerance.

    Drauzio E.N. Rangel;Anne J. Anderson;Donald W. Roberts

  • Damage and recovery from UV-B exposure in conidia of the entomopathogens Verticillium lecanii and Aphanocladium album

    Gilberto U. L. Braga;Drauzio E. N. Rangel;Stephan D. Flint;Charles D. Miller

  • Effect of UV-B on conidia and germlings of the entomopathogenic hyphomycete Metarhizium anisopliae

    Gilberto U.L. Braga;Stephan D. Flint;Claudio L. Messias;Anne J. Anderson

  • A laccase exclusively expressed by Metarhizium anisopliae during isotropic growth is involved in pigmentation, tolerance to abiotic stresses and virulence.

    Weiguo Fang;Éverton K.K. Fernandes;Donald W. Roberts;Michael J. Bidochka

  • Mutants and isolates of Metarhizium anisopliae are diverse in their relationships between conidial pigmentation and stress tolerance

    Drauzio E.N. Rangel;Michael J. Butler;Javad Torabinejad;Anne J. Anderson

  • CTC medium: a novel dodine-free selective medium for isolating entomopathogenic fungi, especially Metarhizium acridum, from soil.

    Éverton K.K. Fernandes;Chad A. Keyser;Drauzio E.N. Rangel;R. Nelson Foster

Frequent Co-Authors

Éverton K. K. Fernandes
Éverton K. K. Fernandes Universidade Federal de Goiás
Anne J. Anderson
Anne J. Anderson Utah State University
Raymond J. St. Leger
Raymond J. St. Leger University of Maryland, College Park
Stephan D. Flint
Stephan D. Flint University of Idaho
Richard C. Staples
Richard C. Staples Boyce Thompson Institute
Lokesh Joshi
Lokesh Joshi University of Galway
Jon Clardy
Jon Clardy Harvard University
Ann E. Hajek
Ann E. Hajek Cornell University
Edward W. Evans
Edward W. Evans Utah State University
Lawrence A. Lacey
Lawrence A. Lacey Agricultural Research Service

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Best Scientists Citing Donald W. Roberts

Recently Published Articles