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Plant Science and Agronomy
South Africa
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Plant Science and Agronomy 117 76 73 2 2 1456 60741

J. Van Staden publications per year

The chart shows the history of publications by J. Van Staden between 1969 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. J. Van Staden published across 57 years, from 1969 to 2025, averaging 27.8 papers a year. Output peaked at 84 publications in 2013. 39 of the 1,582 publications appeared in the last two years.

No. of publications
20 40 60 80
Bar chart. Horizontal axis: year, 1969 to 2025. Vertical axis: number of publications, 0 to 84. Peak 84 publications in 2013. 1969: 1 publication 1970: 1 publication 1971: 0 publications 1972: 3 publications 1973: 9 publications 1974: 2 publications 1975: 9 publications 1976: 16 publications 1977: 14 publications 1978: 17 publications 1979: 9 publications 1980: 8 publications 1981: 15 publications 1982: 17 publications 1983: 17 publications 1984: 22 publications 1985: 17 publications 1986: 26 publications 1987: 29 publications 1988: 23 publications 1989: 23 publications 1990: 23 publications 1991: 22 publications 1992: 32 publications 1993: 26 publications 1994: 26 publications 1995: 28 publications 1996: 21 publications 1997: 15 publications 1998: 25 publications 1999: 19 publications 2000: 21 publications 2001: 32 publications 2002: 37 publications 2003: 36 publications 2004: 44 publications 2005: 47 publications 2006: 42 publications 2007: 49 publications 2008: 67 publications 2009: 53 publications 2010: 48 publications 2011: 45 publications 2012: 59 publications 2013: 84 publications 2014: 53 publications 2015: 52 publications 2016: 50 publications 2017: 49 publications 2018: 25 publications 2019: 40 publications 2020: 23 publications 2021: 34 publications 2022: 24 publications 2023: 14 publications 2024: 20 publications 2025: 19 publications
1969 2025

1,582 publications in total across all disciplines

View publications per year as a table
J. Van Staden: publications per year, 1969 to 2025
Year Publications
1969 1
1970 1
1971 0
1972 3
1973 9
1974 2
1975 9
1976 16
1977 14
1978 17
1979 9
1980 8
1981 15
1982 17
1983 17
1984 22
1985 17
1986 26
1987 29
1988 23
1989 23
1990 23
1991 22
1992 32
1993 26
1994 26
1995 28
1996 21
1997 15
1998 25
1999 19
2000 21
2001 32
2002 37
2003 36
2004 44
2005 47
2006 42
2007 49
2008 67
2009 53
2010 48
2011 45
2012 59
2013 84
2014 53
2015 52
2016 50
2017 49
2018 25
2019 40
2020 23
2021 34
2022 24
2023 14
2024 20
2025 19
Total 1,582
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J. Van Staden publications per year - data summary

  • J. Van Staden, a Plant Science and Agronomy scholar from University of KwaZulu-Natal, has 1,582 publications recorded across 57 years, from 1969 to 2025.
  • The oldest publication on record dates to 1969 and the most recent to 2025.
  • The most productive year is 2013, with 84 publications.
  • The least productive years with any output are 1969 and 1970, with 1 publication each.
  • 1 of the 57 years in the span carries no publications at all (1971).
  • The rate of publication averages 27.8 papers per year over the whole span, or 28.3 per year counting only the 56 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 111 publications, 7% of the career total.
  • Split into equal eras - 1969-1987: 232 publications (12.2 per year); 1988-2006: 542 publications (28.5 per year); 2007-2025: 808 publications (42.5 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

J. Van Staden 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 J. Van Staden 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, 467+ 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: 1,456 publications — 100th percentile

100% 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
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 1,456
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J. Van Staden publication distribution in Plant Science and Agronomy in 2026 - data summary

  • The chart plots the publication count of all 6,494 Plant Science and Agronomy scientists ranked by Research.com in 2026, grouped into 88 ranges running from 36–40 to 467+ publications.
  • J. Van Staden, a Plant Science and Agronomy scholar from University of KwaZulu-Natal, records 1,456 publications - the 100th percentile of the discipline.
  • 100% of ranked Plant Science and Agronomy scientists score the same or lower than J. Van Staden, and about 0% score higher.
  • The median of the discipline falls in the 136–140 publications range, and J. Van Staden ranks above the median.
  • The most crowded range is 111–115 publications, holding 255 scientists (4% of the field).
  • 55% of the field sits in the lowest quarter of the value range (up to 141–145 publications), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 467 publications or more, 99 scientists in all (2% of the field).

J. Van Staden 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 J. Van Staden 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, 109+ 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: 117 D-Index — 99th percentile

99% 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
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+ 99 117
Download as CSV

J. Van Staden D-index placement in Plant Science and Agronomy in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 6,494 Plant Science and Agronomy scientists ranked by Research.com in 2026, grouped into 80 ranges running from 30 to 109+ D-Index.
  • J. Van Staden, a Plant Science and Agronomy scholar from University of KwaZulu-Natal, records 117 D-Index - the 99th percentile of the discipline.
  • 99% of ranked Plant Science and Agronomy scientists score the same or lower than J. Van Staden, and about 1% score higher.
  • The median of the discipline falls in the 43 D-Index range, and J. Van Staden ranks above the median.
  • The most crowded range is 34 D-Index, holding 288 scientists (4% of the field).
  • 66% of the field sits in the lowest quarter of the value range (up to 49 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 109 D-Index or more, 99 scientists in all (2% of the field).

Research.com Recognitions

  • 2026 - Research.com Plant Science and Agronomy in South Africa Leader Award
  • 2025 - Research.com Plant Science and Agronomy in South Africa Leader Award
  • 2022 - Research.com Plant Science and Agronomy in South Africa Leader Award
  • Fellow of the Royal Society of South Africa
  • Fellow of the Royal Society of South Africa
  • Fellow of the Royal Society of South Africa
  • Fellow of the Royal Society of South Africa

Overview

What is he best known for?

The fields of study he is best known for:

  • Botany
  • Ecology
  • Enzyme

Botany, Traditional medicine, Medicinal plants, Germination and Antibacterial agent are his primary areas of study. His research on Botany focuses in particular on Plant physiology. His studies in Traditional medicine integrate themes in fields like Antibacterial activity, Pharmacognosy and Antimicrobial.

The Medicinal plants study which covers Bark that intersects with Ethyl acetate. His Germination research incorporates themes from Smoke and Seedling. The concepts of his Cytokinin study are interwoven with issues in Callus and Algae.

His most cited work include:

  • Dissecting the roles of osmolyte accumulation during stress (1025 citations)
  • Biological activities and distribution of plant saponins. (917 citations)
  • Proline synthesis and degradation: a model system for elucidating stress-related signal transduction (395 citations)

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

The scientist’s investigation covers issues in Botany, Cytokinin, Germination, Traditional medicine and Horticulture. His Botany research is multidisciplinary, incorporating perspectives in Explant culture, Micropropagation and Tissue culture. His Cytokinin research is multidisciplinary, incorporating elements of Plant physiology, Endogeny and Metabolism.

The study incorporates disciplines such as Smoke and Seedling in addition to Germination. His work deals with themes such as Anti-inflammatory, Antibacterial activity and Antimicrobial, which intersect with Traditional medicine. J. Van Staden has researched Shoot in several fields, including Kinetin and Murashige and Skoog medium.

He most often published in these fields:

  • Botany (57.59%)
  • Cytokinin (16.80%)
  • Germination (16.50%)

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

  • Botany (57.59%)
  • Traditional medicine (15.49%)
  • Medicinal plants (9.01%)

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

His primary areas of study are Botany, Traditional medicine, Medicinal plants, Germination and Antimicrobial. He works on Botany which deals in particular with Shoot. In his research, Flavonoid is intimately related to Antibacterial activity, which falls under the overarching field of Traditional medicine.

J. Van Staden regularly links together related areas like Anti-inflammatory in his Medicinal plants studies. His Germination study combines topics from a wide range of disciplines, such as Smoke and Seedling. His Antimicrobial study contributes to a more complete understanding of Microbiology.

Between 2009 and 2021, his most popular works were:

  • Anti-inflammatory, anticholinesterase, antioxidant and phytochemical properties of medicinal plants used for pain-related ailments in South Africa. (114 citations)
  • Quality from the field: The impact of environmental factors as quality determinants in medicinal plants (109 citations)
  • Antimicrobial properties and phenolic contents of medicinal plants used by the Venda people for conditions related to venereal diseases. (90 citations)

Best Publications

  • Biological activities and distribution of plant saponins.

    S.G. Sparg;M.E. Light;J. van Staden

  • Dissecting the roles of osmolyte accumulation during stress

    P. D. Hare;W. A. Cress;J. Van Staden

  • Somaclonal variation in plants: causes and detection methods

    Michael W. Bairu;Adeyemi O. Aremu;Johannes Van Staden

  • Proline synthesis and degradation: a model system for elucidating stress-related signal transduction

    P.D. Hare;W.A. Cress;J. van Staden

  • Assessing African medicinal plants for efficacy and safety: pharmacological screening and toxicology.

    C.W. Fennell;K.L. Lindsey;L.J. McGaw;S.G. Sparg

  • Preliminary screening of some traditional zulu medicinal plants for anti-inflammatory and anti-microbial activities.

    J Lin;A.R Opoku;M Geheeb-Keller;A.D Hutchings

  • Photosynthetic response of transgenic soybean plants, containing an Arabidopsis P5CR gene, during heat and drought stress.

    J.A. De Ronde;W.A. Cress;W.A. Cress;G.H.J. Krüger;R.J. Strasser

  • Zulu medicinal plants with antibacterial activity

    J E Kelmanson;A K Jäger;J van Staden

  • The use of charcoal in in vitro culture – A review

    M.J. Pan;J. van Staden

  • Towards the scientific validation of traditional medicinal plants

    J.L.S. Taylor;T. Rabe;L.J. McGaw;A.K. Jäger

  • Isolation of the major germination cue from plant-derived smoke

    J van Staden;Anna Jäger;ME Light;BV Burger

  • Antibacterial, anthelmintic and anti-amoebic activity in South African medicinal plants

    LJ McGaw;Anna Jäger;J van Staden

  • Evidence for the presence of plant growth regulators in commercial seaweed products

    I. J. Crouch;J. van Staden

  • Screening of traditionally used South African plants for antifungal activity against Candida albicans.

    M.L Motsei;K.L Lindsey;J van Staden;A.K Jäger

  • Smoke as a germination cue: a review

    N.A.C. Brown;J. van Staden

  • The involvement of cytokinins in plant responses to environmental stress

    P.D. Hare;W.A. Cress;J. van Staden

  • A critical review on exploiting the pharmaceutical potential of plant endophytic fungi.

    Shubhpriya Gupta;Preeti Chaturvedi;Manoj G. Kulkarni;Johannes Van Staden

  • The occurrence of trehalose in the leaves of the desiccation-tolerant angiosperm Myrothamnus flabellifolius welw.

    P.M. Drennan;M.T. Smith;D. Goldsworthy;J. van Staden

  • Cytokinins in macroalgae

    W.A. Stirk;O. Novák;M. Strnad;J. van Staden

  • Quality from the field: The impact of environmental factors as quality determinants in medicinal plants

    B. Ncube;J.F. Finnie;J. Van Staden

  • Effects of plant growth regulators on the antioxidant system in callus of two maize cultivars subjected to water stress

    L. Li;J. van Staden

  • Antibacterial, anti-inflammatory, anti-cholinesterase and mutagenic effects of extracts obtained from some trees used in South African traditional medicine

    I.M.S. Eldeen;E.E. Elgorashi;J. van Staden

  • Optimizing the micropropagation protocol for the endangered Aloe polyphylla: can meta-topolin and its derivatives serve as replacement for benzyladenine and zeatin?

    Michael W. Bairu;Wendy A. Stirk;Karel Dolezal;Johannes Van Staden

  • Plant part substitution – a way to conserve endangered medicinal plants?

    S Zschocke;T Rabe;J.L.S Taylor;A.K Jäger

  • Plant-derived smoke and smoke extracts stimulate seed germination of the fire-climax grass Themeda triandra

    B.J.M. Baxter;J. Van Staden;J.E. Granger;N.A.C. Brown

  • Topolins: A panacea to plant tissue culture challenges?

    Adeyemi O. Aremu;Michael W. Bairu;Karel Doležal;Jeffrey F. Finnie

  • Auxin and cytokinin relationships in 24 microalgal strains(1)

    Wendy A. Stirk;Vince Ördög;Vince Ördög;Ondřej Novák;Jakub Rolčík

  • Effect of seaweed concentrate on the growth and mineral nutrition of nutrient-stressed lettuce

    I.J. Crouch;R.P. Beckett;J. van Staden

Frequent Co-Authors

Jeffrey F. Finnie
Jeffrey F. Finnie University of KwaZulu-Natal
Adeyemi O. Aremu
Adeyemi O. Aremu North-West University
Wendy A. Stirk
Wendy A. Stirk University of KwaZulu-Natal
Miroslav Strnad
Miroslav Strnad Palacký University, Olomouc
Karel Doležal
Karel Doležal Palacký University, Olomouc
Richard P. Beckett
Richard P. Beckett University of KwaZulu-Natal
Steven D. Johnson
Steven D. Johnson University of KwaZulu-Natal
Jiří Grúz
Jiří Grúz Palacký University, Olomouc
Ondřej Novák
Ondřej Novák Czech Academy of Sciences
Olaniyi Amos Fawole
Olaniyi Amos Fawole University of Johannesburg

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