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D-Index & Metrics

Plant Science and Agronomy

D-Index
43
Citations
6882
World Ranking
3240
National Ranking
816

H. A. Borthwick 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 H. A. Borthwick 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: 91 publications — 19th percentile

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

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

H. A. Borthwick 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 H. A. Borthwick 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: 43 D-Index — 52nd percentile

52% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 1961 - Member of the National Academy of Sciences
  • 1955 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

What is he best known for?

The fields of study he is best known for:

  • Botany
  • Horticulture
  • Agronomy

H. A. Borthwick focuses on Botany, Germination, Phytochrome, Horticulture and Cell biology. His Botany research incorporates elements of Wavelength and Achromatic lens. His work carried out in the field of Germination brings together such families of science as Plant stem, Hypocotyl, Sugar and Pinto bean, Phaseolus.

His Horticulture research includes themes of Dispersion and Agronomy, Weed. His Cell biology research is multidisciplinary, incorporating perspectives in Biochemistry and Plant growth. H. A. Borthwick has researched Darkness in several fields, including Biophysics and photoperiodism.

His most cited work include:

  • A Reversible Photoreaction Controlling Seed Germination. (522 citations)
  • Action of Light on Lettuce-Seed Germination (245 citations)
  • PHOTOREVERSIBLE CONTROL OF ELONGATION OF PINTO BEANS AND OTHER PLANTS UNDER NORMAL CONDITIONS OF GROWTH (194 citations)

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

H. A. Borthwick spends much of his time researching Botany, Horticulture, Germination, photoperiodism and Phytochrome. His work on Action spectrum and Phaseolus as part of general Botany study is frequently connected to Dark period, Primordium and Hyoscyamus niger, therefore bridging the gap between diverse disciplines of science and establishing a new relationship between them. The concepts of his Action spectrum study are interwoven with issues in Absorption and Infrared.

In general Horticulture, his work in Seedling and Gladiolus is often linked to Limiting, Period and Control linking many areas of study. His Germination research includes elements of Lactuca and Lepidium. His photoperiodism study combines topics in areas such as Papaver, Poppy, Nutrient solution and Animal science.

He most often published in these fields:

  • Botany (59.65%)
  • Horticulture (35.09%)
  • Germination (26.32%)

What were the highlights of his more recent work (between 1966-2017)?

  • Phytochrome (21.05%)
  • Botany (59.65%)
  • Plant growth (7.02%)

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

His primary scientific interests are in Phytochrome, Botany, Plant growth, Agronomy and Germination. He integrates many fields, such as Phytochrome, Function, Biochemistry, Action spectrum, Petiole and Photostimulation, in his works. H. A. Borthwick integrates Botany and Hyoscyamus niger in his research.

H. A. Borthwick interconnects Biotechnology and Cell biology in the investigation of issues within Plant growth. The Agronomy study combines topics in areas such as Day length, Fluorescence and Horticulture. His Germination study frequently links to other fields, such as Weed.

Between 1966 and 2017, his most popular works were:

  • The function of phytochrome in regulation of plant growth (154 citations)
  • Light Filtration by Foliar Canopies: Significance for Light-Controlled Weed Seed Germination' (120 citations)
  • Photocontrol of Mimosa pudica L. leaf movement. (65 citations)

Best Publications

  • A Reversible Photoreaction Controlling Seed Germination.

    H. A. Borthwick;S. B. Hendricks;M. W. Parker;E. H. Toole

  • Action of Light on Lettuce-Seed Germination

    H. A. Borthwick;S. B. Hendricks;E. H. Toole;V. K. Toole

  • Physiology of Seed Germination

    E H Toole;S B Hendricks;and H A Borthwick;V K Toole

  • PHOTOREVERSIBLE CONTROL OF ELONGATION OF PINTO BEANS AND OTHER PLANTS UNDER NORMAL CONDITIONS OF GROWTH

    R. J. Downs;S. B. Hendricks;H. A. Borthwick

  • The Reaction Controlling Floral Initiation

    H. A. Borthwick;S. B. Hendricks;M. W. Parker

  • The function of phytochrome in regulation of plant growth

    S B Hendricks;H A Borthwick

  • Action Spectrum for the Photoperiodic Control of Floral Initiation of Short-Day Plants

    M. W. Parker;S. B. Hendricks;H. A. Borthwick;N. J. Scully

  • Photoperiodism in Plants

    H. A. Borthwick;S. B. Hendricks

  • Leaflet movement of Mimosa pudica L. Indicative of phytochrome action.

    J. C. Fondeville;H. A. Borthwick;S. B. Hendricks

  • Light Filtration by Foliar Canopies: Significance for Light-Controlled Weed Seed Germination'

    R. B. Taylorson;H. A. Borthwick

  • Effects of Photoperiod on Growth of Trees

    R. J. Downs;H. A. Borthwick

  • SPECTRAL SENSITIVITIES FOR LEAF AND STEM GROWTH OF ETIOLATED PEA SEEDLINGS AND THEIR SIMILARITY TO ACTION SPECTRA FOR PHOTOPERIODISM

    M. W. Parker;S. B. Hendricks;H. A. Borthwick;F. W. Went

  • Interaction of Temperature and Light in Germination of Seeds.

    E. H. Toole;V. K. Toole;H. A. Borthwick;S. B. Hendricks

  • Action Spectrum for Photoperiodic Control of Floral Initiation of a Long- Day Plant, Wintex Barley (Hordeum vulgare)

    H. A. Borthwick;S. B. Hendricks;M. W. Parker

  • Lettuce seed and its germination

    H. A. Borthwick;W. W. Robbins

  • RHYTHMIC FLOWERING RESPONSES AND PHYTOCHROME CHANGES IN A SELECTION OF CHENOPODIUM RUBRUM

    Bruce G. Cumming;Sterling B. Hendricks;H. A. Borthwick

  • Action Spectrum for the Photoperiodic Control of Floral Initiation of the Long-Day Plant Hyoscyamus niger

    M. W. Parker;S. B. Hendricks;H. A. Borthwick

  • Photocontrol of Mimosa pudica L. leaf movement.

    J C Fondeville;M J Schneider;H A Borthwick;S B Hendricks

  • Photocontrol of Lepidium Seed Germination.

    E. H. Toole;V. K. Toole;H. A. Borthwick;S. B. Hendricks

  • PIGMENT CONVERSION IN THE FORMATIVE RESPONSES OF PLANTS TO RADIATION.

    S. B. Hendricks;H. A. Borthwick;R. J. Downs

  • THE HIGH-ENERGY LIGHT ACTION CONTROLLING PLANT RESPONSES AND DEVELOPMENT

    H. A. Borthwick;S. B. Hendricks;M. J. Schneider;R. B. Taylorson

Frequent Co-Authors

Sterling B. Hendricks
Sterling B. Hendricks United States Department of Agriculture

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