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  • Study: Fluorescent light clarifies relationship between heat stress and crop yield

    Soybean field and sunshine

    Illinois researchers found that fluorescent light sensors can detect the otherwise invisible signs of high-temperature stress in soybeans and that this stress is linked to a reduction in crop yield

    Photo by L. Brian Stauffer


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  • Editor’s notes:

    To reach Hyungsuk Kimm, call 217-979-8334, email

    To reach Kaiyu Guan, call 217-300-2690;

    The paper “Quantifying high-temperature stress on soybean canopy photosynthesis: the unique role of sun-induced chlorophyll fluorescence” is available online and from the U. of I. News Bureau. DOI: