World's Best Scientists 2026 revealed!

D-Index & Metrics

Plant Science and Agronomy

D-Index
34
Citations
3915
World Ranking
5458
National Ranking
1329

N. Richard Knowles 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 N. Richard Knowles 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: 132 publications — 48th percentile

48% of scientists in this discipline score the same or lower.

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

N. Richard Knowles 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 N. Richard Knowles 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: 34 D-Index — 19th percentile

19% of scientists in this discipline score the same or lower.

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

Best Publications

  • Low-altitude, high-resolution aerial imaging systems for row and field crop phenotyping: A review

    Sindhuja Sankaran;Lav R. Khot;Carlos Zúñiga Espinoza;Sanaz Jarolmasjed

  • Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry of lipids: ionization and prompt fragmentation patterns

    Khalid A. Al‐Saad;Vladimir Zabrouskov;William F. Siems;N. Richard Knowles

  • Resistance Responses of Potato to Vesicular-Arbuscular Mycorrhizal Fungi under Varying Abiotic Phosphorus Levels

    Unknown

  • Manipulating Stem Number, Tuber Set, and Yield Relationships for Northern- and Southern-Grown Potato Seed Lots

    N. Richard Knowles;Lisa O. Knowles

  • Characterization of Solanum tuberosum multicystatin and its structural comparison with other cystatins.

    Mark S. Nissen;G.N. Mohan Kumar;Buhyun Youn;Buhyun Youn;D. Benjamin Knowles

  • Correlations between electrolyte leakage and degree of saturation of polar lipids from aged potato (Solanum tuberosum L.) tuber tissue

    N. Richard Knowles;Lisa O. Knowles

  • Age-induced loss of wound-healing ability in potato tubers is partly regulated by ABA.

    G. N. Mohan Kumar;Edward C. Lulai;Jeffrey C. Suttle;N. Richard Knowles

  • Influence of Vesicular-Arbuscular Mycorrhizal Fungi on the Response of Potato to Phosphorus Deficiency

    Unknown

  • Glycoalkaloid Development during Greening of Fresh Market Potatoes (Solanum tuberosum L.)

    Laura A Grunenfelder;Lisa O Knowles;Larry K Hiller;N Richard Knowles

  • Sweetening responses of potato tubers of different maturity to conventional and non-conventional storage temperature regimes

    N. Richard Knowles;Edward P. Driskill;Lisa O. Knowles

  • Extraction of RNA from fresh, frozen, and lyophilized tuber and root tissues

    G N Mohan Kumar;Suresh Iyer;N Richard Knowles

  • Changes in potato phenylpropanoid metabolism during tuber development

    Duroy A. Navarre;Raja S. Payyavula;Roshani Shakya;N. Richard Knowles

  • Oxidative metabolism and the physiological age of seed potatoes are affected by increased α‐linolenate content

    Vladimir Zabrouskov;G.N. Mohan Kumar;James P. Spychalla;N. Richard Knowles

  • Wound-induced superoxide production and PAL activity decline with potato tuber age and wound healing ability

    G. N. Mohan Kumar;N. Richard Knowles

  • Temperature-induced changes in potato processing quality during storage are modulated by tuber maturity

    Edward P. Driskill;Lisa O. Knowles;N. Richard Knowles

  • Developmentally linked changes in proteases and protease inhibitors suggest a role for potato multicystatin in regulating protein content of potato tubers.

    Sarah M. Weeda;G. N. Mohan Kumar;N. Richard Knowles

  • Influence of Species of Vesicular-Arbuscular Mycorrhizal Fungi and Phosphorus Nutrition on Growth, Development, and Mineral Nutrition of Potato (Solanum tuberosum L.)

    Unknown

  • Relationships between stem number, tuber set and yield of Russet Burbank potatoes

    Unknown

  • Rapid Growth and Apparent Total Nitrogen Increases in Rice and Corn Plants following Applications of Triacontanol

    Unknown

  • In-season heat stress compromises postharvest quality and low-temperature sweetening resistance in potato ( Solanum tuberosum L.)

    Daniel H. Zommick;Lisa O. Knowles;Mark J. Pavek;N. Richard Knowles

  • Strboh A homologue of NADPH oxidase regulates wound-induced oxidative burst and facilitates wound-healing in potato tubers

    G. N. Mohan Kumar;Suresh Iyer;N. Richard Knowles

  • Color indices for the assessment of chlorophyll development and greening of fresh market potatoes

    Laura Grunenfelder;Larry K. Hiller;N. Richard Knowles

  • Involvement of auxin in the loss of apical dominance and plant growth potential accompanying aging of potato seed tubers

    G. N. M. Kumar;N. Richard Knowles

  • Phosphorus status affects postharvest respiration, membrane permeability and lipid chemistry of European seedless cucumber fruit (Cucumis sativus L.)

    L Knowles;M.Rae Trimble;N.Richard Knowles

  • Potato Tuber Length-Width Ratio Assessment Using Image Analysis

    Yongsheng Si;Sindhuja Sankaran;N. Richard Knowles;Mark J. Pavek

  • Influence of vesicular–arbuscular mycorrhizal fungi and phosphorus on growth, carbohydrate partitioning and mineral nutrition of greenhouse cucumber (Cucumis sativus L.) plants during establishment

    M. Rae Trimble;N. Richard Knowles

  • Manipulating Stem Number, Tuber Set and Size Distribution in Specialty Potato Cultivars

    Jacob M. Blauer;Lisa O. Knowles;N. Richard Knowles

  • Optimizing Tuber Set and Size Distribution for Potato Seed (Solanum tuberosum L.) Expressing Varying Degrees of Apical Dominance

    Lisa O. Knowles;N. Richard Knowles

  • Polyamine Metabolism of Potato Seed-Tubers During Long-Term Storage and Early Sprout Development

    Loretta J. Mikitzel;N. Richard Knowles

  • High-Resolution Aerial Imaging Based Estimation of Crop Emergence in Potatoes

    Sindhuja Sankaran;Juan José Quirós;Juan José Quirós;N. Richard Knowles;Lisa O. Knowles

  • Genetic Fingerprinting of Potato Varieties from the Northwest Potato Variety Development Program

    Sapinder Bali;Vidyasagar Sathuvalli;Chuck Brown;Rich Novy

  • Effect of altering the physiological age of potato seed-tubers in the fall on subsequent production in a short-season environment

    N. Richard Knowles;Gabor I. Botar

  • Modelling the effects of potato seed-tuber age on plant establishment

    N. Richard Knowles;Gabor I. Botar

Frequent Co-Authors

Herbert H. Hill
Herbert H. Hill Washington State University
Jeffrey S. Miller
Jeffrey S. Miller University of Minnesota
Duroy A. Navarre
Duroy A. Navarre Agricultural Research Service
Jeffrey C. Suttle
Jeffrey C. Suttle United States Department of Agriculture
Phillip N. Miklas
Phillip N. Miklas Agricultural Research Service
David S. Douches
David S. Douches Michigan State University
Carl J. Rosen
Carl J. Rosen University of Minnesota
Arron H. Carter
Arron H. Carter Washington State University
Michael O. Pumphrey
Michael O. Pumphrey Washington State University

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