World's Best Scientists 2026 revealed!

D-Index & Metrics

Plant Science and Agronomy

D-Index
49
Citations
8171
World Ranking
2292
National Ranking
578

James P. Syvertsen 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 James P. Syvertsen 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: 163 publications — 64th percentile

64% of scientists in this discipline score the same or lower.

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

James P. Syvertsen 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 James P. Syvertsen 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: 49 D-Index — 66th percentile

66% 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
  • Horticulture
  • Photosynthesis

James P. Syvertsen mainly focuses on Agronomy, Botany, Transpiration, Photosynthesis and Rootstock. The study incorporates disciplines such as Citrus rootstock and Orange in addition to Agronomy. His Botany study frequently involves adjacent topics like Nutrient.

The Photosynthesis study combines topics in areas such as Evergreen and Macadamia integrifolia. His work deals with themes such as Inoculation, Salinity and Rutaceae, which intersect with Rootstock. His research in Citrus paradisi tackles topics such as Stomatal conductance which are related to areas like Horticulture.

His most cited work include:

  • Vegetation effects on the isotope composition of oxygen in atmospheric CO2 (335 citations)
  • On the relationship between leaf anatomy and CO2 diffusion through the mesophyll of hypostomatous leaves (303 citations)
  • Low conductances for CO2 diffusion from stomata to the sites of carboxylation in leaves of woody species (277 citations)

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

Horticulture, Agronomy, Botany, Rootstock and Orange are his primary areas of study. The concepts of his Horticulture study are interwoven with issues in Photosynthesis, Stomatal conductance, Salinity and Irrigation. His Stomatal conductance research incorporates elements of Chlorophyll fluorescence and Olea.

His work on Shoot as part of general Agronomy research is frequently linked to Mycorrhiza, thereby connecting diverse disciplines of science. James P. Syvertsen has included themes like Plant nutrition, Water-use efficiency and Carrizo citrange in his Rootstock study. His research investigates the connection between Orange and topics such as Rutaceae that intersect with issues in Fruit tree.

He most often published in these fields:

  • Horticulture (52.27%)
  • Agronomy (43.94%)
  • Botany (33.33%)

What were the highlights of his more recent work (between 2009-2020)?

  • Horticulture (52.27%)
  • Rootstock (25.76%)
  • Agronomy (43.94%)

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

James P. Syvertsen focuses on Horticulture, Rootstock, Agronomy, Citrus rootstock and Salinity. His research in Horticulture intersects with topics in Photosynthesis, Nutrient and Irrigation. His biological study spans a wide range of topics, including Chlorophyll, Water-use efficiency and Transpiration.

Shoot and Dry weight are subfields of Agronomy in which his conducts study. His Citrus rootstock study results in a more complete grasp of Botany. His study in the field of Citrus × sinensis is also linked to topics like Phosphorus-32.

Between 2009 and 2020, his most popular works were:

  • Multiple abiotic stresses occurring with salinity stress in citrus (95 citations)
  • Irrigation Water Quality and Salinity Effects in Citrus Trees (90 citations)
  • Salinity Tolerance and Leaf Water Use Efficiency in Citrus (28 citations)

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

  • Botany
  • Horticulture
  • Ecology

His primary areas of study are Agronomy, Rootstock, Salinity, Shoot and Water-use efficiency. He has researched Agronomy in several fields, including Citrus rootstock, Chlorophyll, Horticulture and Transpiration. His research integrates issues of Nutrient and Plant physiology in his study of Horticulture.

James P. Syvertsen interconnects Citrus × sinensis, Hydroponics and Abiotic component in the investigation of issues within Transpiration. His Salinity research is multidisciplinary, incorporating perspectives in Agroforestry and Irrigation water. The various areas that he examines in his Dry weight study include Photosynthesis, Phosphate and Nitrogen.

Best Publications

  • On the relationship between leaf anatomy and CO2 diffusion through the mesophyll of hypostomatous leaves

    J. P. Syvertsen;J. Lloyd;C. McCONCHIE;P. E. Kriedemann

  • Vegetation effects on the isotope composition of oxygen in atmospheric CO2

    Graham D. Farquhar;Jon Lloyd;John A. Taylor;Lawrence B. Flanagan

  • Low conductances for CO2 diffusion from stomata to the sites of carboxylation in leaves of woody species

    J. Lloyd;J. P. Syvertsen;P. E. Kriedemann;G. D. Farquhar

  • Gas exchange, chlorophyll and nutrient contents in relation to Na+ and Cl− accumulation in ‘Sunburst’ mandarin grafted on different rootstocks

    Francisco Garcı́a-Sánchez;John L. Jifon;Micaela Carvajal;James P. Syvertsen

  • Responses to flooding and drought stress by two citrus rootstock seedlings with different water‐use efficiency

    Francisco García-Sánchez;Francisco García-Sánchez;James. P. Syvertsen;Vicente Gimeno;Pablo Botía

  • Moderate shade can increase net gas exchange and reduce photoinhibition in citrus leaves.

    John L. Jifon;James P. Syvertsen

  • HOST DETERMINANTS OF MYCORRHIZAL DEPENDENCY OF CITRUS ROOTSTOCK SEEDLINGS

    J. H. Graham;J. P. Syvertsen

  • Multiple abiotic stresses occurring with salinity stress in citrus

    J.P. Syvertsen;F. Garcia-Sanchez

  • Kaolin Particle Film Applications Can Increase Photosynthesis and Water Use Efficiency of `Ruby Red' Grapefruit Leaves

    John L. Jifon;James P. Syvertsen

  • Carbon Economy of Sour Orange in Relation to Mycorrhizal Colonization and Phosphorus Status

    D. M. Eissenstat;J. H. Graham;J. P. Syvertsen;D. L. Drouillard

  • INFLUENCE OF VESICULAR–ARBUSCULAR MYCORRHIZA ON THE HYDRAULIC CONDUCTIVITY OF ROOTS OF TWO CITRUS ROOTSTOCKS

    J. H. Graham;J. P. Syvertsen

  • Growth Environment and Leaf Anatomy Affect Nondestructive Estimates of Chlorophyll and Nitrogen in Citrus sp. Leaves

    John L. Jifon;James P. Syvertsen;Eric Whaley

  • Fruit load and canopy shading affect leaf characteristics and net gas exchange of 'Spring' navel orange trees.

    J. P. Syvertsen;C. Goñi;A. Otero

  • Leaf water relations and net gas exchange responses of salinized Carrizo citrange seedlings during drought stress and recovery.

    J. G. Pérez-Pérez;James. P. Syvertsen;Pablo Botía;Francisco García-Sánchez;Francisco García-Sánchez

  • Irrigation Water Quality and Salinity Effects in Citrus Trees

    Yoseph Levy;Jim Syvertsen

  • Leaf chlorophyll, net gas exchange and chloroplast ultrastructure in citrus leaves of different nitrogen status.

    Bhaskar R Bondada;James P Syvertsen

  • Salinity reduces water use and nitrate-N-use efficiency of citrus

    John D. Lea-Cox;James P. Syvertsen

  • EFFECT OF DROUGHT STRESS AND VESICULAR–ARBUSCULAR MYCORRHIZA ON CITRUS TRANSPIRATION AND HYDRAULIC CONDUCTIVITY OF ROOTS

    Yoseph Levy;J. P. Syvertsen;S. Nemec

  • Leaf Characteristics and Net Gas Exchange of Diploid and Autotetraploid Citrus

    R Romero-Aranda;B.R Bondada;J.P Syvertsen;J.W Grosser

  • Salinity Tolerance of Cleopatra Mandarin and Carrizo Citrange Citrus Rootstock Seedlings Is Affected by CO2 Enrichment during Growth

    Francisco García-Sánchez;J.P. Syvertsen

Frequent Co-Authors

Francisco García-Sánchez
Francisco García-Sánchez Spanish National Research Council
James H. Graham
James H. Graham University of Florida
Vicente Martínez
Vicente Martínez Spanish National Research Council
John L. Jifon
John L. Jifon Texas A&M University
Jon Lloyd
Jon Lloyd Imperial College London
Graham D. Farquhar
Graham D. Farquhar Australian National University
David M. Eissenstat
David M. Eissenstat Pennsylvania State University
Dirceu Mattos
Dirceu Mattos Instituto Agronômico de Campinas
Lawrence B. Flanagan
Lawrence B. Flanagan University of Lethbridge
Ashok K. Alva
Ashok K. Alva University of Florida

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