Dr. Russell Sharp explains how melatonin — a molecule known for human sleep and stress regulation — is produced by plants and acts as a powerful antioxidant and growth regulator. In hydroponics it can enhance root growth, improve stress tolerance under high light or unstable conditions, delay leaf senescence, and support photosynthesis and secondary metabolite production.
Applied as a foliar spray, seed priming, or added to nutrient solutions at micromolar concentrations, melatonin is water-soluble and allows precise dosing in soilless systems. Research shows benefits in crops like tomato and lettuce, with increased root-to-shoot ratios and higher antioxidant levels under stress.
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Russel Reiter — University of Texas Health Science Center
Dun-Xian Tan — University of Texas Health Science Center
Rakesh K. Singh — Banaras Hindu University
Nasser Al-Aghbar — King Abdulaziz University
Rajeev K. Varshney — International Crops Research Institute for the Semi-Arid Tropics (ICRISAT)
Chao Zhao — Nanjing Agricultural University
Wei Wei — Zhejiang University
Dun-Xian Tan — University of Texas Health Science Center
Russel J. Reiter — University of Texas Health Science Center
Sergiu F. Chivu — University of Bucharest
Guang-Yu Chen — Zhejiang University
Xing-Guo Lu — South China Botanical Garden, Chinese Academy of Sciences
Shuang-Qing Peng — South China Agricultural University
Dun-Xian Tan — University of Texas Health Science Center
Russel Reiter — University of Texas Health Science Center
Wei Meng — Zhejiang University
Natalia Reiter — University of Texas Health Science Center
Chunhua Zhao — Nanjing Agricultural University
Javier Martinez — University of Granada
Ana Cano — University of Granada
Russel J. Reiter — University of Texas Health Science Center
Dun-Xian Tan — University of Texas Health Science Center
Debabrata Chattopadhyay — Bose Institute
Fanyue Meng — Zhejiang University
Chao Zhao — Nanjing Agricultural University
Bin Xu — Nanjing Agricultural University
Wei Wei — Zhejiang University
Maria Reiter — University of Texas Health Science Center
Sergey Kvetnoy — Russian Academy of Sciences
Jian-Kang Zhu — University of California, Riverside
Chunhua Zhao — Nanjing Agricultural University
Xiaohong Zhu — South China Botanical Garden
Dun-Xian Tan — University of Texas Health Science Center
Russel Reiter — University of Texas Health Science Center
Iwona Zielenkiewicz — Polish Academy of Sciences
Yali Zhang — Zhejiang University
Fang Fang — Nanjing Agricultural University
Xinyue Wang — South China Botanical Garden
Sonia Reiter — University of Texas Health Science Center
Gonzalo Reiter — University of Texas Health Science Center
Javier Martinez — University of Granada
Ana Cano — University of Granada
Dun-Xian Tan — University of Texas Health Science Center
Russel Reiter — University of Texas Health Science Center
Yi Li — Zhejiang University
Chunhua Zhao — Nanjing Agricultural University
Wei Wei — Zhejiang University
Dun-Xian Tan — University of Texas Health Science Center
Russel J. Reiter — University of Texas Health Science Center
Rajeev K. Varshney — ICRISAT
Rafael Guerrero — University of Granada
Juan Pablo Martínez — University of Granada
Natalia Reiter — University of Texas Health Science Center
Chunhua Zhao — Nanjing Agricultural University
Wei Wei — Zhejiang University
Dun-Xian Tan — University of Texas Health Science Center
Russel Reiter — University of Texas Health Science Center
Javier Martinez — University of Granada
Ana Cano — University of Granada
Chao Zhao — Nanjing Agricultural University
Fang Fang — Nanjing Agricultural University
Xinyue Wang — South China Botanical Garden
Maria Reiter — University of Texas Health Science Center
Sergey Kvetnoy — Russian Academy of Sciences
Jian-Kang Zhu — University of California, Riverside
Fanyue Meng — Zhejiang University
Guang-Yu Chen — Zhejiang University
Shuang-Qing Peng — South China Agricultural University
Debabrata Chattopadhyay — Bose Institute
Iwona Zielenkiewicz — Polish Academy of Sciences
Yali Zhang — Zhejiang University
Xiaohong Zhu — South China Botanical Garden
Fang Fang — Nanjing Agricultural University
Yi Li — Zhejiang University
Rafael Guerrero — University of Granada
Juan Pablo Martínez — University of Granada
Russel Reiter — University of Texas Health Science Center
Dun-Xian Tan — University of Texas Health Science Center
Javier Martinez — University of Granada
Ana Cano — University of Granada
Natalia Reiter — University of Texas Health Science Center
Maria Reiter — University of Texas Health Science Center
Chao Zhao — Nanjing Agricultural University
Wei Wei — Zhejiang University
Chunhua Zhao — Nanjing Agricultural University
Guang-Yu Chen — Zhejiang University
Fanyue Meng — Zhejiang University
Sergey Kvetnoy — Russian Academy of Sciences
Jian-Kang Zhu — University of California, Riverside
Debabrata Chattopadhyay — Bose Institute
Iwona Zielenkiewicz — Polish Academy of Sciences
Fang Fang — Nanjing Agricultural University
Xinyue Wang — South China Botanical Garden
Yi Li — Zhejiang University
Rafael Guerrero — University of Granada
Juan Pablo Martínez — University of Granada
Russel Reiter — University of Texas Health Science Center
Dun-Xian Tan — University of Texas Health Science Center
Javier Martinez — University of Granada
Ana Cano — University of Granada
