World's Best Scientists 2026 revealed!

D-Index & Metrics

Plant Science and Agronomy

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

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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