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Plant Science and Agronomy
Poland
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Plant Science and Agronomy 61 1139 1045 3 3 240 16432

Hazem M. Kalaji publications per year

The chart shows the history of publications by Hazem M. Kalaji between 1991 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Hazem M. Kalaji published across 36 years, from 1991 to 2026, averaging 7.6 papers a year. Output peaked at 39 publications in 2022. 3 of the 273 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1991 to 2026. Vertical axis: number of publications, 0 to 39. Peak 39 publications in 2022. 1991: 1 publication 1992: 0 publications 1993: 0 publications 1994: 0 publications 1995: 0 publications 1996: 0 publications 1997: 1 publication 1998: 0 publications 1999: 1 publication 2000: 0 publications 2001: 2 publications 2002: 0 publications 2003: 2 publications 2004: 3 publications 2005: 0 publications 2006: 0 publications 2007: 2 publications 2008: 1 publication 2009: 4 publications 2010: 3 publications 2011: 3 publications 2012: 6 publications 2013: 4 publications 2014: 17 publications 2015: 11 publications 2016: 13 publications 2017: 21 publications 2018: 25 publications 2019: 16 publications 2020: 20 publications 2021: 37 publications 2022: 39 publications 2023: 26 publications 2024: 12 publications 2025: 2 publications 2026: 1 publication
1991 2026

273 publications in total across all disciplines

View publications per year as a table
Hazem M. Kalaji: publications per year, 1991 to 2026
Year Publications
1991 1
1992 0
1993 0
1994 0
1995 0
1996 0
1997 1
1998 0
1999 1
2000 0
2001 2
2002 0
2003 2
2004 3
2005 0
2006 0
2007 2
2008 1
2009 4
2010 3
2011 3
2012 6
2013 4
2014 17
2015 11
2016 13
2017 21
2018 25
2019 16
2020 20
2021 37
2022 39
2023 26
2024 12
2025 2
2026 1
Total 273
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Hazem M. Kalaji 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 Hazem M. Kalaji sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 88 bars. Horizontal axis: publications, 36–40 to 467+. Vertical axis: number of scientists, 0 to 255. Most scientists, 255, have 111–115 publications. The last bar groups every scientist with 467 publications or more. The highlighted bar, 236–240 publications, is where this scientist sits. 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
36–40 publications 467+

This scientist: 240 publications — 86th percentile

86% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Plant Science and Agronomy scientists by publication count, Research.com 2026 ranking edition. Based on 6,494 ranked scientists.
Publications Scientists This scientist
36–40 2
41–45 7
46–50 40
51–55 58
56–60 60
61–65 107
66–70 130
71–75 153
76–80 191
81–85 199
86–90 206
91–95 218
96–100 226
101–105 227
106–110 247
111–115 255
116–120 253
121–125 233
126–130 219
131–135 201
136–140 194
141–145 176
146–150 157
151–155 147
156–160 151
161–165 159
166–170 137
171–175 128
176–180 126
181–185 98
186–190 114
191–195 100
196–200 90
201–205 71
206–210 98
211–215 70
216–220 86
221–225 61
226–230 58
231–235 53
236–240 64 240
241–245 39
246–250 46
251–255 51
256–260 36
261–265 44
266–270 35
271–275 30
276–280 33
281–285 35
286–290 36
291–295 26
296–300 26
301–305 31
306–310 30
311–315 21
316–320 29
321–325 14
326–330 15
331–335 15
336–340 17
341–345 15
346–350 12
351–355 17
356–360 18
361–365 12
366–370 11
371–375 6
376–380 6
381–385 11
386–390 9
391–395 10
396–400 8
401–405 4
406–410 9
411–415 11
416–420 4
421–425 7
426–430 4
431–435 3
436–440 5
441–445 8
446–450 6
451–455 7
456–460 5
461–465 6
466 2
467+ 99
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Hazem M. Kalaji 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 Hazem M. Kalaji sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 80 bars. Horizontal axis: D-Index, 30 to 109+. Vertical axis: number of scientists, 0 to 288. Most scientists, 288, have 34 D-Index. The last bar groups every scientist with 109 D-Index or more. The highlighted bar, 61 D-Index, is where this scientist sits. 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: 61 D-Index — 83rd percentile

83% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Plant Science and Agronomy scientists by D-index, Research.com 2026 ranking edition. Based on 6,494 ranked scientists.
D-Index Scientists This scientist
30 200
31 236
32 253
33 283
34 288
35 240
36 246
37 243
38 247
39 229
40 232
41 230
42 228
43 219
44 193
45 164
46 158
47 143
48 131
49 127
50 122
51 122
52 110
53 102
54 98
55 79
56 85
57 88
58 91
59 62
60 61
61 59 61
62 54
63 61
64 59
65 58
66 41
67 49
68 39
69 32
70 40
71 47
72 38
73 28
74 29
75 28
76 22
77 21
78 25
79 26
80 19
81 16
82 12
83 16
84 14
85 11
86 17
87 13
88 10
89 12
90 18
91 16
92 16
93 17
94 12
95 8
96 9
97 9
98 11
99 12
100 5
101 8
102 4
103 11
104 5
105 9
106 7
107 4
108 8
109+ 99
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Research.com Recognitions

  • 2026 - Research.com Plant Science and Agronomy in Poland Leader Award
  • 2025 - Research.com Plant Science and Agronomy in Poland Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Botany
  • Ecology
  • Enzyme

The scientist’s investigation covers issues in Photosystem II, Chlorophyll fluorescence, Photosynthesis, Chlorophyll a and Chlorophyll. In Photosystem II, Hazem M. Kalaji works on issues like Photochemistry, which are connected to Electron transport chain. His Photosynthesis study necessitates a more in-depth grasp of Botany.

He studied Chlorophyll a and Fluorescence that intersect with Light emission and Analytical chemistry. His Chlorophyll research incorporates themes from Biophysics and Thermostability. His Horticulture research is multidisciplinary, incorporating perspectives in Assimilation, Quantum yield, Salinity and Photosynthetic efficiency.

His most cited work include:

  • Chlorophyll a fluorescence as a tool to monitor physiological status of plants under abiotic stress conditions (416 citations)
  • Frequently asked questions about in vivo chlorophyll fluorescence: Practical issues (370 citations)
  • Effects of salt stress on photosystem II efficiency and CO2 assimilation of two Syrian barley landraces (270 citations)

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

His primary areas of investigation include Photosynthesis, Chlorophyll fluorescence, Horticulture, Botany and Chlorophyll. His studies in Photosynthesis integrate themes in fields like Cultivar, Agronomy and Chlorophyll a. His study in Chlorophyll a is interdisciplinary in nature, drawing from both Fluorescence and Algae.

The concepts of his Chlorophyll fluorescence study are interwoven with issues in Photosynthetic reaction centre and Photosystem I. His biological study deals with issues like Biophysics, which deal with fields such as Chloroplast. His study looks at the intersection of Photosystem II and topics like Photochemistry with Electron transport chain.

He most often published in these fields:

  • Photosynthesis (51.66%)
  • Chlorophyll fluorescence (38.41%)
  • Horticulture (27.15%)

What were the highlights of his more recent work (between 2019-2021)?

  • Horticulture (27.15%)
  • Photosynthesis (51.66%)
  • Chlorophyll a (22.52%)

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

Horticulture, Photosynthesis, Chlorophyll a, Chlorophyll fluorescence and Photosynthetic efficiency are his primary areas of study. His Horticulture study combines topics in areas such as Salinity, Fluorescence, Photosystem II and Water content. He has researched Photosystem II in several fields, including Reactive oxygen species and Electron transport chain.

His work deals with themes such as Chlorophyll, Nutrient, Cultivar and Anthocyanin, which intersect with Photosynthesis. Hazem M. Kalaji has included themes like Raphanus, Quinone acceptor and Iron deficiency in his Chlorophyll a study. His Chlorophyll fluorescence study combines topics from a wide range of disciplines, such as Sorghum, Agronomy, Sweet sorghum, Photosystem I and Abiotic stress.

Between 2019 and 2021, his most popular works were:

  • Melatonin and calcium function synergistically to promote the resilience through ROS metabolism under arsenic-induced stress (31 citations)
  • Hormesis in Plants: The Role of Oxidative Stress, Auxins and Photosynthesis in Corn Treated with Cd or Pb. (12 citations)
  • Special issue in honour of Prof. Reto J. Strasser – JIP-test as a tool to identify salinity tolerance in sweet sorghum genotypes (12 citations)

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

  • Botany
  • Ecology
  • Enzyme

His primary scientific interests are in Horticulture, Photosynthesis, Photosystem, Chlorophyll and Chlorophyll fluorescence. Hazem M. Kalaji interconnects Salinity and Auxin in the investigation of issues within Horticulture. His Photosynthetic efficiency study in the realm of Photosynthesis connects with subjects such as Stimulation.

Photosystem is a subfield of Photosystem II that Hazem M. Kalaji investigates. He combines subjects such as Coleoptile, Anthocyanin and Growing season with his study of Chlorophyll. The concepts of his Chlorophyll fluorescence study are interwoven with issues in Chloroplast, Phosphorus deficiency and Chlorophyll a.

Best Publications

  • Chlorophyll a fluorescence as a tool to monitor physiological status of plants under abiotic stress conditions

    Hazem M. Kalaji;Anjana Jajoo;Abdallah Oukarroum;Marian Brestic

  • Frequently asked questions about in vivo chlorophyll fluorescence: Practical issues

    Hazem M. Kalaji;Gert Schansker;Richard J. Ladle;Vasilij Goltsev

  • Impact of Metal and Metal Oxide Nanoparticles on Plant: A Critical Review.

    Anshu Rastogi;Marek Zivcak;Oksana Sytar;Oksana Sytar;Hazem M. Kalaji

  • Frequently asked questions about chlorophyll fluorescence, the sequel

    Hazem M. Kalaji;Gert Schansker;Marian Brestic;Filippo Bussotti

  • Identification of nutrient deficiency in maize and tomato plants by in vivo chlorophyll a fluorescence measurements.

    Hazem M. Kalaji;Abdallah Oukarroum;Vladimir Alexandrov;Margarita Kouzmanova

  • Effects of salt stress on photosystem II efficiency and CO2 assimilation of two Syrian barley landraces

    Hazem M. Kalaji;Govindjee;Karolina Bosa;Janusz Kościelniak

  • Photosynthetic electron transport and specific photoprotective responses in wheat leaves under drought stress

    Marek Zivcak;Marian Brestic;Zuzana Balatova;Petra Drevenakova

  • Variable chlorophyll fluorescence and its use for assessing physiological condition of plant photosynthetic apparatus

    V. N. Goltsev;H. M. Kalaji;M. Paunov;W. Bąba

  • Foliar application of zinc oxide nanoparticles: An effective strategy to mitigate drought stress in cucumber seedling by modulating antioxidant defense system and osmolytes accumulation.

    Unknown

  • Melatonin and calcium function synergistically to promote the resilience through ROS metabolism under arsenic-induced stress

    Manzer H. Siddiqui;Manzer H. Siddiqui;Saud Alamri;M. Nasir Khan;Francisco J. Corpas

  • Fluorescence parameters as early indicators of light stress in barley.

    Hazem M. Kalaji;Robert Carpentier;Suleyman I. Allakhverdiev;Karolina Bosa

  • Photosynthetic responses of sun- and shade-grown barley leaves to high light: is the lower PSII connectivity in shade leaves associated with protection against excess of light?

    Marek Zivcak;Marian Brestic;Hazem M. Kalaji;Govindjee

  • Photosystem II thermostability in situ: Environmentally induced acclimation and genotype-specific reactions in Triticum aestivum L

    Marian Brestic;Marek Zivcak;Hazem M. Kalaji;Robert Carpentier

  • Chlorophyll fluorescence as a tool for nutrient status identification in rapeseed plants

    Hazem M. Kalaji;Wojciech Bąba;Krzysztof Gediga;Vasilij Goltsev

  • Correlation between reactive oxygen species production and photochemistry of photosystems I and II in Lemna gibba L. plants under salt stress

    Abdallah Oukarroum;Filippo Bussotti;Vasilij Goltsev;Hazem M. Kalaji

  • Prompt chlorophyll fluorescence as a tool for crop phenotyping: an example of barley landraces exposed to various abiotic stress factors

    H. M. Kalaji;A. Rastogi;M. Živčák;M. Brestic

  • Nano-CuO stress induced modulation of antioxidative defense and photosynthetic performance of Syrian barley (Hordeum vulgare L.)

    Arun Kumar Shaw;Supriya Ghosh;Hazem M. Kalaji;Karolina Bosa

  • Drought-induced modifications of photosynthetic electron transport in intact leaves: Analysis and use of neural networks as a tool for a rapid non-invasive estimation

    Vasilij Goltsev;Ivelina Zaharieva;Petko Chernev;Margarita Kouzmanova

  • Can chlorophyll- a fluorescence parameters be used as bio-indicators to distinguish between drought and salinity stress in Tilia cordata Mill?

    Hazem M. Kalaji;Lydia Račková;Viera Paganová;Tatiana Swoczyna

  • Low PSI content limits the photoprotection of PSI and PSII in early growth stages of chlorophyll b-deficient wheat mutant lines

    Marian Brestic;Marek Zivcak;Kristyna Kunderlikova;Oksana Sytar

  • Variable chlorophyll fluorescence and its use for assessing physiological condition of plant photosynthetic apparatus

    V. Goltsev;H. Kalaji;M. Paunov;W. Bąba

Frequent Co-Authors

Vasilij Goltsev
Vasilij Goltsev Sofia University
Marian Brestic
Marian Brestic Slovak University of Agriculture
Suleyman I. Allakhverdiev
Suleyman I. Allakhverdiev Russian Academy of Sciences
Marek Zivcak
Marek Zivcak Slovak University of Agriculture
Reto J. Strasser
Reto J. Strasser University of Geneva
Abdallah Oukarroum
Abdallah Oukarroum Mohammed VI Polytechnic University
Hongbo Shao
Hongbo Shao Qingdao University of Science and Technology
Manzer H. Siddiqui
Manzer H. Siddiqui King Saud University
Robert Carpentier
Robert Carpentier Université du Québec à Trois-Rivières
Saud A. Alamri
Saud A. Alamri King Saud University

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