Photosynthetica 2025, 63(2):196-233 | DOI: 10.32615/ps.2025.012

From spectrum to yield: advances in crop photosynthesis with hyperspectral imaging

D. PANDA, S. MOHANTY, S. DAS, J. SENAPATY, D.B. SAHOO, B. MISHRA, M.J. BAIG, L. BEHERA
ICAR-National Rice Research Institute, Cuttack, Odisha, India

Ensuring global food security requires noninvasive techniques for optimizing resource use and monitoring crop health. Hyperspectral imaging (HSI) enables the precise analysis of plant physiology by capturing spectral data across narrow bands. This review explores HSI's role in agriculture, particularly its integration with unmanned aerial vehicles, AI-driven analytics, and machine learning. These advancements allow real-time monitoring of photosynthesis, chlorophyll fluorescence, and carbon assimilation, linking spectral data to plant health and agronomic decisions. Key indicators such as solar-induced fluorescence and vegetation indices enhance crop stress detection. This work compares HSI-derived metrics in differentiating nutrient deficiencies, drought, and disease. Despite its potential, challenges remain in data standardization and spectral interpretation. This review discusses solutions such as molecular phenotyping and predictive modeling, for AI-driven precision agriculture. Addressing these gaps, HSI is poised to revolutionize farming, improve climate resilience, and ensure food security.

Additional key words: Calvin cycle; chlorophyll fluorescence; crop productivity; hyperspectral imaging; photosynthesis.

Received: January 2, 2025; Revised: March 3, 2025; Accepted: April 7, 2025; Prepublished online: July 8, 2025; Published: July 10, 2025  Show citation

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PANDA, D., MOHANTY, S., DAS, S., SENAPATY, J., SAHOO, D.B., MISHRA, B., BAIG, M.J., & BEHERA, L. (2025). From spectrum to yield: advances in crop photosynthesis with hyperspectral imaging. Photosynthetica, 63(2), 196-233. doi: 10.32615/ps.2025.012
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