World's Best Scientists 2026 revealed!

D-Index & Metrics

Plant Science and Agronomy

D-Index
50
Citations
8124
World Ranking
2172
National Ranking
559

Harry T. Horner 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 Harry T. Horner 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: 156 publications — 61st percentile

61% of scientists in this discipline score the same or lower.

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

Harry T. Horner 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 Harry T. Horner 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: 50 D-Index — 68th percentile

68% 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
  • Gene
  • Genus

His primary areas of study are Botany, Biochemistry, Calcium oxalate, Pollen wall and Raphide. Harry T. Horner works mostly in the field of Botany, limiting it down to topics relating to Helianthus annuus and, in certain cases, Electron microscopic, as a part of the same area of interest. His work deals with themes such as Biophysics and Nectar, which intersect with Biochemistry.

Harry T. Horner combines subjects such as Poaceae and Sorghum bicolor with his study of Pollen wall. His study ties his expertise on Druse together with the subject of Raphide. His biological study spans a wide range of topics, including Oxalic acid, Crystal and Rubiaceae.

His most cited work include:

  • Calcium oxalate crystals in plants (652 citations)
  • Mitochondrial Aldehyde Dehydrogenase Activity Is Required for Male Fertility in Maize (200 citations)
  • Overexpression of a knotted-like homeobox gene of potato alters vegetative development by decreasing gibberellin accumulation. (140 citations)

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

Harry T. Horner mostly deals with Botany, Calcium oxalate, Sterility, Genetics and Raphide. His study focuses on the intersection of Botany and fields such as Crystal with connections in the field of Phaseoleae. His work on Weddellite and Whewellite as part of general Calcium oxalate research is frequently linked to Biochemistry, Vascular bundle and Legume, bridging the gap between disciplines.

His Biochemistry study frequently draws connections between adjacent fields such as Biophysics. His work carried out in the field of Sterility brings together such families of science as Allele, Mutant and Microspore, Stamen. Among his research on Raphide, you can see a combination of other fields of science like Idioblast, Piperaceae and Peperomia.

He most often published in these fields:

  • Botany (66.67%)
  • Calcium oxalate (18.44%)
  • Sterility (14.18%)

What were the highlights of his more recent work (between 2008-2021)?

  • Botany (66.67%)
  • Peperomia (3.55%)
  • Raphide (11.35%)

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

His primary scientific interests are in Botany, Peperomia, Raphide, Sterility and Genetics. His multidisciplinary approach integrates Botany and Reproductive success in his work. Harry T. Horner interconnects Palisade cell and Palisade in the investigation of issues within Peperomia.

Harry T. Horner combines Raphide and Crystal in his studies. His Sterility study incorporates themes from Pollen, Mutant, Gene, Locus and Gene mapping. His Genetics research incorporates themes from Tapetum and Cell biology.

Between 2008 and 2021, his most popular works were:

  • Unique calcium oxalate “duplex” and “concretion” idioblasts in leaves of tribe Naucleeae (Rubiaceae) (130 citations)
  • Formation of elongated starch granules in high-amylose maize (71 citations)
  • IRE1, a component of the unfolded protein response signaling pathway, protects pollen development in Arabidopsis from heat stress. (54 citations)

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

  • Botany
  • Gene
  • Genus

Harry T. Horner mainly focuses on Botany, Herbarium, Piperaceae, Transmission electron microscopy and Peperomia. His Botany study often links to related topics such as Concretion. Harry T. Horner has researched Herbarium in several fields, including Crystal and Piper.

His research integrates issues of Plant morphology, Reticulate, Palisade cell and Anatomy in his study of Piperaceae. His Transmission electron microscopy research spans across into areas like Sodium dodecyl sulfate, Proton NMR, Nuclear magnetic resonance spectroscopy, Chromatography and Differential scanning calorimetry. He has included themes like Parenchyma and Palisade in his Peperomia study.

Best Publications

  • Calcium oxalate crystals in plants

    Vincent R. Franceschi;Harry T. Horner

  • Mitochondrial Aldehyde Dehydrogenase Activity Is Required for Male Fertility in Maize

    Feng Liu;Xiangqin Cui;Harry T. Horner;Henry Weiner

  • Unique calcium oxalate “duplex” and “concretion” idioblasts in leaves of tribe Naucleeae (Rubiaceae)

    Nels R. Lersten;Harry T. Horner

  • Overexpression of a knotted-like homeobox gene of potato alters vegetative development by decreasing gibberellin accumulation.

    Faye M. Rosin;Jennifer K. Hart;Harry T. Horner;Peter J. Davies

  • A COMPARATIVE LIGHT- AND ELECTRON-MICROSCOPIC STUDY OF MICROSPOROGENESIS IN MALE-FERTILE AND CYTOPLASMIC MALE-STERILE SUNFLOWER (HELIANTHUS ANNUUS)

    Harry T. Horner

  • POLLEN WALL AND TAPETAL ORBICULAR WALL DEVELOPMENT IN SORGHUM BICOLOR (GRAMINEAE)

    Jon E. Christensen;Harry T. Horner;Nels R. Lersten

  • Oxalate content of soybean seeds (Glycine max: Leguminosae), soyfoods, and other edible legumes.

    Linda K. Massey;Reid G. Palmer;Harry T. Horner

  • STIGMA, STYLE, AND OBTURATOR OF ORNITHOGALUM CAUDATUM (LILIACEAE) AND THEIR FUNCTION IN THE REPRODUCTIVE PROCESS

    Varien R. Tilton;Harry T. Horner

  • THE ASSOCIATION OF DRUSE CRYSTALS WITH THE DEVELOPING STOMIUM OF CAPSICUM ANNUUM (SOLANACEAE) ANTHERS

    Harry T. Horner;Bruce L. Wagner

  • POLLEN PORE DEVELOPMENT AND ITS SPATIAL ORIENTATION DURING MICROSPOROGENESIS IN THE GRASS SORGHUM BICOLOR

    Jon E. Christensen;Harry T. Horner

  • Calcium Oxalate Crystals in Developing Seeds of Soybean

    H. Ilarslan;R. G. Palmer;Harry T. Horner

  • Mechanisms of genic male sterility

    Harry T. Horner;Reid G. Palmer

  • Quantitative determination of calcium oxalate and oxalate in developing seeds of soybean (Leguminosae)

    H. Ilarslan;R. G. Palmer;J. Imsande;Harry T. Horner

  • A comparative light and electron microscopic study of microsporogenesis in male-fertile and cytoplasmic male-sterile pepper (Capsicum annuum)

    Harry T. Horner;Milton A. Rogers

  • Calcium oxalate crystal types and trends in their distribution patterns in leaves of Prunus (Rosaceae: Prunoideae)

    N. R. Lersten;H. T. Horner

  • A major function of the tobacco floral nectary is defense against microbial attack

    Robert W. Thornburg;Clay J Carter;Ann Powell;Ron Mittler

  • Tobacco Nectaries Express a Novel NADPH Oxidase Implicated in the Defense of Floral Reproductive Tissues against Microorganisms

    Clay Carter;Rosanne Healy;Nicole M. O'Tool;S.M. Saqlan Naqvi

  • Amyloplast to chromoplast conversion in developing ornamental tobacco floral nectaries provides sugar for nectar and antioxidants for protection.

    H. T. Horner;R. A. Healy;G. Ren;D. Fritz

  • Oil bodies in leaf mesophyll cells of angiosperms: overview and a selected survey.

    Nels R. Lersten;Albert R. Czlapinski;John D. Curtis;Robert Freckmann

  • Ascorbic acid: a precursor of oxalate in crystal idioblasts of Yucca torreyi in liquid root culture

    Harry T. Horner;Albert P. Kausch;Bruce L. Wagner

  • Floral Nectary Fine Structure and Development in Glycine max L. (Fabaceae)

    Harry T. Horner;Rosaria A. Healy;Teresa Cervantes‐Martinez;Reid G. Palmer

  • DEVELOPMENT, STRUCTURE AND FUNCTION OF SECRETORY TRICHOMES IN PSYCHOTRIA BACTERIOPHILA (RUBIACEAE)

    Harry T. Horner;Nels R. Lersten

Frequent Co-Authors

Reid G. Palmer
Reid G. Palmer US Department of Agriculture
Nels R. Lersten
Nels R. Lersten Iowa State University
Randy C. Shoemaker
Randy C. Shoemaker Agricultural Research Service
Devinder Sandhu
Devinder Sandhu Agricultural Research Service
Basil J. Nikolau
Basil J. Nikolau Iowa State University
Vincent R. Franceschi
Vincent R. Franceschi Washington State University
Ikhlas A. Khan
Ikhlas A. Khan University of Mississippi
Patrick S. Schnable
Patrick S. Schnable Iowa State University
Roger P. Wise
Roger P. Wise Agricultural Research Service
Jonathan F. Wendel
Jonathan F. Wendel Iowa State University

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