2026 Hazem M. Kalaji: Plant Science and Agronomy Researcher – H-Index, Publications & Awards

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

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

1298
Citations
Frequently asked questions about in vivo chlorophyll fluorescence: Practical issues

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

867
Citations
Impact of Metal and Metal Oxide Nanoparticles on Plant: A Critical Review.

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

828
Citations
Frequently asked questions about chlorophyll fluorescence, the sequel

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

626
Citations
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

511
Citations
Effects of salt stress on photosystem II efficiency and CO2 assimilation of two Syrian barley landraces

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

392
Citations
Photosynthetic electron transport and specific photoprotective responses in wheat leaves under drought stress

Marek Zivcak;Marian Brestic;Zuzana Balatova;Petra Drevenakova

368
Citations
Variable chlorophyll fluorescence and its use for assessing physiological condition of plant photosynthetic apparatus

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

330
Citations
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

314
Citations
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

296
Citations
Fluorescence parameters as early indicators of light stress in barley.

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

284
Citations
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

261
Citations
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

256
Citations
Chlorophyll fluorescence as a tool for nutrient status identification in rapeseed plants

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

252
Citations
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

252
Citations
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

251
Citations
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

246
Citations
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

231
Citations
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

230
Citations
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

209
Citations
Variable chlorophyll fluorescence and its use for assessing physiological condition of plant photosynthetic apparatus

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

0
Citations