World's Best Scientists 2026 revealed!

D-Index & Metrics

Plant Science and Agronomy

D-Index
55
Citations
9703
World Ranking
1637
National Ranking
68

Zamir K. Punja 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 Zamir K. Punja sits on this spectrum.

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 publications 467+

This scientist: 283 publications — 91st percentile

91% of scientists in this discipline score the same or lower.

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

Zamir K. Punja 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 Zamir K. Punja sits on this spectrum.

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: 55 D-Index — 76th percentile

76% of scientists in this discipline score the same or lower.

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

Overview

What is he best known for?

The fields of study he is best known for:

  • Botany
  • Fungus
  • Horticulture

His main research concerns Botany, Genetically modified crops, Plant disease resistance, Microbiology and Horticulture. His research in Botany intersects with topics in Phycomycetes, Agrobacterium and Chitinase. His Genetically modified crops research integrates issues from Biotechnology and Transformation.

His Plant disease resistance study incorporates themes from Botrytis cinerea and Alternaria radicina. As a part of the same scientific family, Zamir K. Punja mostly works in the field of Horticulture, focusing on Phenylalanine ammonia-lyase and, on occasion, Cinnamic acid, Chlorogenic acid, Phenols and Epidermis. His Daucus carota research is multidisciplinary, incorporating elements of Salicylic acid and Sclerotinia sclerotiorum.

His most cited work include:

  • Genetic engineering of plants to enhance resistance to fungal pathogens—a review of progress and future prospects (220 citations)
  • Genetic Change Within Populations of Phytophthora infestans in the United States and Canada During 1994 to 1996: Role of Migration and Recombination. (191 citations)
  • Using fungi and yeasts to manage vegetable crop diseases (166 citations)

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

His scientific interests lie mostly in Botany, Horticulture, Plant disease resistance, Microbiology and Genetically modified crops. Zamir K. Punja works mostly in the field of Botany, limiting it down to topics relating to Inoculation and, in certain cases, Root rot and Pythium. In the field of Horticulture, his study on Powdery mildew, Fusarium oxysporum and Fusarium overlaps with subjects such as Cannabis and Cannabis sativa.

The study incorporates disciplines such as Gene expression and Fungicide in addition to Plant disease resistance. Zamir K. Punja focuses mostly in the field of Microbiology, narrowing it down to topics relating to Chitinase and, in certain cases, Transformation. As part of one scientific family, Zamir K. Punja deals mainly with the area of Genetically modified crops, narrowing it down to issues related to the Biotechnology, and often Defence mechanisms.

He most often published in these fields:

  • Botany (48.57%)
  • Horticulture (25.00%)
  • Plant disease resistance (13.57%)

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

  • Horticulture (25.00%)
  • Cannabis (6.43%)
  • Cannabis sativa (5.71%)

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

Zamir K. Punja mainly investigates Horticulture, Cannabis, Cannabis sativa, Powdery mildew and Botany. His studies deal with areas such as Disease management, Chemical control, Inoculation and Cucumis as well as Powdery mildew. His work carried out in the field of Inoculation brings together such families of science as Bract, Vegetative reproduction and Spore.

His Botany study combines topics from a wide range of disciplines, such as Plasmid and Genetic diversity. His work on Botrytis as part of general Botrytis cinerea study is frequently linked to Colletotrichum higginsianum, Albugo candida and Albugo, bridging the gap between disciplines. His work in Root rot addresses subjects such as Hydroponics, which are connected to disciplines such as Cutting and Plant disease resistance.

Between 2013 and 2021, his most popular works were:

  • Carrot (Daucus carota L.). (45 citations)
  • Hemp ( Cannabis sativa L.) (25 citations)
  • Effects of Bacillus subtilis strain QST 713 and storage temperatures on post-harvest disease development on greenhouse tomatoes (18 citations)

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

  • Botany
  • Fungus
  • Horticulture

His primary areas of investigation include Horticulture, Powdery mildew, Fusarium, Botany and Cannabis. His study in Horticulture is interdisciplinary in nature, drawing from both Phosphinothricin acetyltransferase and Transgene. His Powdery mildew research includes themes of Inoculation, Pythium dissotocum, Pith, Fusarium oxysporum and Trichoderma.

His research in Fusarium tackles topics such as Pythium which are related to areas like Stem rot and Crop. His Botany research incorporates themes from Bacillus and Colony-forming unit. His research investigates the connection with Hydroponics and areas like Plant disease resistance which intersect with concerns in Genotype and DNA sequencing.

Best Publications

  • The Biology, Ecology, and Control of Sclerotium Rolfsii

    Unknown

  • Genetic engineering of plants to enhance resistance to fungal pathogens—a review of progress and future prospects

    Zamir K. Punja

  • Seaweed extract reduces foliar fungal diseases on carrot

    J. Jayaraj;A. Wan;M. Rahman;Z.K. Punja

  • Using fungi and yeasts to manage vegetable crop diseases

    Zamir K Punja;Raj S Utkhede

  • Genetic Change Within Populations of Phytophthora infestans in the United States and Canada During 1994 to 1996: Role of Migration and Recombination.

    Stephen B. Goodwin;Christine D. Smart;Robert W. Sandrock;Kenneth L. Deahl

  • Commercial extract from the brown seaweed Ascophyllum nodosum reduces fungal diseases in greenhouse cucumber

    Jayaraj Jayaraman;Jeff Norrie;Zamir K. Punja

  • Metabolic engineering of novel ketocarotenoid production in carrot plants

    Jayaraman Jayaraj;Robert Devlin;Zamir Punja

  • Response of transgenic cucumber and carrot plants expressing different chitinase enzymes to inoculation with fungal pathogens.

    Z. K. Punja;S. H. T. Raharjo

  • Pathogens and Molds Affecting Production and Quality of Cannabis sativa L.

    Zamir K. Punja;Danielle Collyer;Cameron Scott;Samantha Lung

  • Combined expression of chitinase and lipid transfer protein genes in transgenic carrot plants enhances resistance to foliar fungal pathogens.

    J. Jayaraj;Z. K. Punja

  • Efficacy of Biological and Chemical Treatments for Control of Fusarium Root and Stem Rot on Greenhouse Cucumber.

    Unknown

  • Tissue culture and Agrobacterium-mediated transformation of hemp (Cannabis sativa L.)

    Mistianne Feeney;Z. K. Punja

  • Broad-spectrum disease resistance to necrotrophic and biotrophic pathogens in transgenic carrots (Daucus carota L.) expressing an Arabidopsis NPR1 gene.

    Owen Wally;Jayaraman Jayaraj;Zamir K. Punja

  • Factors Influencing Development of Root Rot on Ginseng Caused by Cylindrocarpon destructans.

    Mahfuzur Rahman;Zamir K. Punja

  • Emerging Diseases of Cannabis sativa and Sustainable Management.

    Zamir K Punja

  • Genetic engineering for increasing fungal and bacterial disease resistance in crop plants

    Owen Wally;Zamir K. Punja

  • Altered root exudation and suppression of induced lignification as mechanisms of predisposition by glyphosate of bean roots (Phaseolus vulgarisL.) to colonization byPythiumspp.

    L Liu;Z.K Punja;J.E Rahe

  • Hydrolytic enzymes and antifungal compounds produced by Tilletiopsis species, phyllosphere yeasts that are antagonists of powdery mildew fungi

    E J Urquhart;Z K Punja

  • Fungal pathogens of American ginseng (Panax quinquefolium) in British Columbia

    Zamir K. Punja

  • Formulations of Biopesticides

    Susan Boyetchko;Eric Pedersen;Zamir Punja;Munagala Reddy

  • Growth and biological control activity of Tilletiopsis species against powdery mildew (Sphaerotheca fuliginea) on greenhouse cucumber

    E. J. Urquhart;J. G. Menzies;Z. K. Punja

  • Biochemistry of ginseng root tissues affected by rusty root symptoms

    Mahfuzur Rahman;Zamir K. Punja

  • Evaluation of plant growth-promoting rhizobacteria for biological control of Pythium root rot of cucumbers grown in rockwool and effects on yield

    M. McCullagh;R. Utkhede;J. G. Menzies;Z. K. Punja

  • Genetic engineering of plants to enhance resistance to fungal pathogens.

    Z. K. Punja

Frequent Co-Authors

Subbaratnam Muthukrishnan
Subbaratnam Muthukrishnan Kansas State University
Keith A. Seifert
Keith A. Seifert Carleton University
Robert R. Martin
Robert R. Martin Agricultural Research Service
Stephen B. Goodwin
Stephen B. Goodwin Purdue University West Lafayette
Robert H. Devlin
Robert H. Devlin Fisheries and Oceans Canada
Raymond Hammerschmidt
Raymond Hammerschmidt Michigan State University
Timothy C. Paulitz
Timothy C. Paulitz United States Department of Agriculture
William E. Fry
William E. Fry Cornell University
James G. Menzies
James G. Menzies Agriculture and Agriculture-Food Canada
Christine D. Smart
Christine D. Smart Cornell University

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