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Plant Science and Agronomy
Australia
2025

D-Index & Metrics

Plant Science and Agronomy

D-Index
103
Citations
37802
World Ranking
141
National Ranking
11

Graeme L. Hammer 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 Graeme L. Hammer 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: 406 publications — 97th percentile

97% of scientists in this discipline score the same or lower.

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

Graeme L. Hammer 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 Graeme L. Hammer 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: 103 D-Index — 98th percentile

98% 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

  • 2025 - Research.com Plant Science and Agronomy in Australia Leader Award
  • 2023 - Research.com Plant Science and Agronomy in Australia Leader Award
  • 2022 - Research.com Plant Science and Agronomy in Australia Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Agriculture
  • Ecology
  • Agronomy

His main research concerns Agronomy, Sorghum, Crop, Poaceae and Plant breeding. His Agronomy study integrates concerns from other disciplines, such as Soil water and Transpiration. His work on Sweet sorghum as part of general Sorghum research is often related to Plant level, thus linking different fields of science.

His study on Crop also encompasses disciplines like

  • Tropics which intersects with area such as Subtropics and Phenology,
  • Biomass partitioning and Predictability most often made with reference to Agricultural engineering. His Poaceae research includes themes of Coleoptile, Herbaceous plant and Germination. His studies in Plant breeding integrate themes in fields like Quantitative genetics, Genetic model, Biotechnology and Selection.

His most cited work include:

  • APSIM: a novel software system for model development, model testing and simulation in agricultural systems research (709 citations)
  • APSIM - Evolution towards a new generation of agricultural systems simulation (689 citations)
  • Greater sensitivity to drought accompanies maize yield increase in the U.S. Midwest (490 citations)

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

Graeme L. Hammer spends much of his time researching Agronomy, Sorghum, Crop, Plant breeding and Horticulture. His work carried out in the field of Agronomy brings together such families of science as Soil water, Canopy and Transpiration. His Sorghum research is multidisciplinary, relying on both Water use, Poaceae, Hybrid and Phenology.

His study in Crop is interdisciplinary in nature, drawing from both Agroforestry, Cultivar, Biomass, Crop yield and Agricultural engineering. His Plant breeding study combines topics from a wide range of disciplines, such as Adaptation, Biotechnology, Selection and Gene–environment interaction. His work deals with themes such as Cropping and Yield, which intersect with Sowing.

He most often published in these fields:

  • Agronomy (55.38%)
  • Sorghum (35.17%)
  • Crop (27.03%)

What were the highlights of his more recent work (between 2013-2021)?

  • Agronomy (55.38%)
  • Sorghum (35.17%)
  • Crop (27.03%)

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

His scientific interests lie mostly in Agronomy, Sorghum, Crop, Canopy and Trait. His Agronomy study frequently intersects with other fields, such as Transpiration. His Sorghum research includes elements of Quantitative trait locus, Biotechnology, Grain yield and Remote sensing.

His Crop study incorporates themes from Agroforestry, Agricultural engineering and Germplasm. His study looks at the relationship between Canopy and topics such as Leaf area index, which overlap with Productivity. His Plant breeding research includes elements of Adaptation and Selection.

Between 2013 and 2021, his most popular works were:

  • APSIM - Evolution towards a new generation of agricultural systems simulation (689 citations)
  • Greater sensitivity to drought accompanies maize yield increase in the U.S. Midwest (490 citations)
  • Drought adaptation of stay-green sorghum is associated with canopy development, leaf anatomy, root growth, and water uptake (162 citations)

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

  • Agriculture
  • Ecology
  • Agronomy

Graeme L. Hammer mainly focuses on Agronomy, Sorghum, Crop, Water use and Yield. Agronomy connects with themes related to Canopy in his study. His work carried out in the field of Sorghum brings together such families of science as Quantitative trait locus, Genotype, NODAL, Tiller and Environmental impact of agriculture.

The Crop study combines topics in areas such as Global warming and Agricultural engineering. His Water use study combines topics in areas such as Soil water, Water-use efficiency and Transpiration. His Yield research integrates issues from Epistasis, Zea mays and Crop yield.

Best Publications

  • An overview of APSIM, a model designed for farming systems simulation

    B. A. Keating;Ps S. Carberry;Gl L. Hammer;Me E. Probert

  • APSIM - Evolution towards a new generation of agricultural systems simulation

    Dean P. Holzworth;Neil I. Huth;Peter G. deVoil;Eric J. Zurcher

  • APSIM: a novel software system for model development, model testing and simulation in agricultural systems research

    R.L. McCown;G.L. Hammer;J.N.G. Hargreaves;D.P. Holzworth

  • Greater sensitivity to drought accompanies maize yield increase in the U.S. Midwest

    David B. Lobell;Michael J. Roberts;Wolfram Schlenker;Noah Braun

  • The critical role of extreme heat for maize production in the United States

    David B. Lobell;Graeme L. Hammer;Greg McLean;Carlos Messina

  • Can Changes in Canopy and/or Root System Architecture Explain Historical Maize Yield Trends in the U.S. Corn Belt?

    Graeme L. Hammer;Zhanshan Dong;Greg McLean;Al Doherty

  • The role of root architectural traits in adaptation of wheat to water-limited environments

    Ahmad M Manschadi;John M Christopher;Peter deVoil;Graeme L. Hammer

  • Does Maintaining Green Leaf Area in Sorghum Improve Yield under Drought? II. Dry Matter Production and Yield

    Andrew K. Borrell;Graeme L. Hammer;Robert G. Henzell

  • Genotypic variation in seedling root architectural traits and implications for drought adaptation in wheat (Triticum aestivum L.)

    Ahmad M. Manschadi;Graeme L. Hammer;John T. Christopher;Peter deVoil

  • Prediction of global rainfall probabilities using phases of the Southern Oscillation Index

    Roger C. Stone;Graeme L. Hammer;Torben Marcussen

  • Models for navigating biological complexity in breeding improved crop plants

    Graeme Hammer;Mark Cooper;François Tardieu;Stephen Welch

  • Drought adaptation of stay-green sorghum is associated with canopy development, leaf anatomy, root growth, and water uptake

    Andrew K. Borrell;John E. Mullet;Barbara George-Jaeggli;Erik J. van Oosterom

  • Adapting APSIM to model the physiology and genetics of complex adaptive traits in field crops

    Graeme L. Hammer;Erik van Oosterom;Greg McLean;Scott C. Chapman

  • Quantifying impacts of enhancing photosynthesis on crop yield

    Alex Wu;Graeme L. Hammer;Al Doherty;Susanne von Caemmerer

  • Does maintaining green leaf area in sorghum improve yield under drought? I. Leaf growth and senescence

    Andrew K. Borrell;Graeme L. Hammer;Andrew C. L. Douglas

  • Plant Adaptation and Crop Improvement

    M. Cooper;G. L. Hammer

  • Stay-green: A consequence of the balance between supply and demand for nitrogen during grain filling?

    Andrew Borrell;Graeme Hammer;Erik Van Oosterom

  • Development of a generic crop model template in the cropping system model APSIM

    E. Wang;Mj J. Robertson;Gl L. Hammer;Ps S. Carberry

  • Nitrogen Dynamics and the Physiological Basis of Stay-Green in Sorghum

    Andrew K. Borrell;Graeme L. Hammer

  • The role of physiological understanding in plant breeding; From a breeding perspective

    Phillip Jackson;Michael Robertson;Mark Cooper;Graeme Hammer

  • Environment characterization as an aid to wheat improvement: interpreting genotype–environment interactions by modelling water-deficit patterns in North-Eastern Australia

    K Chenu;M Cooper;G L Hammer;Ky L Mathews

  • Potential yield and water-use efficiency benefits in sorghum from limited maximum transpiration rate.

    Thomas R. Sinclair;Graeme L. Hammer;Erik J. van Oosterom

  • Future contributions of crop modelling—from heuristics and supporting decision making to understanding genetic regulation and aiding crop improvement

    G.L. Hammer;M.J. Kropff;T.R. Sinclair;J.R. Porter

  • Applications of seasonal climate forecasting in agricultural and natural ecosystems : the Australian experience

    G L Hammer;Neville Nicholls;C Mitchell

Frequent Co-Authors

Scott C. Chapman
Scott C. Chapman University of Queensland
David R. Jordan
David R. Jordan University of Queensland
Erik van Oosterom
Erik van Oosterom University of Queensland
Andrew Borrell
Andrew Borrell University of Queensland
Karine Chenu
Karine Chenu University of Queensland
Mark E. Cooper
Mark E. Cooper Monash University
Emma S. Mace
Emma S. Mace University of Queensland
Holger Meinke
Holger Meinke University of Tasmania
François Tardieu
François Tardieu INRAE : Institut national de recherche pour l'agriculture, l'alimentation et l'environnement
Carlos D. Messina
Carlos D. Messina University of Florida

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