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Dean A. Kopsell and Carl E. Sams

Broccoli sprouts: An excellent rich source of inducers of enzymes that protect against chemical carcinogens Proc. Natl. Acad. Sci. USA 94 10367 10372 Frank, H.A. Cogdell, R.J. 1996 Carotenoids in photosynthesis Photochemistry 63 257 264 Fuchs, I. Philippar

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Jieshan Cheng, Peige Fan, Zhenchang Liang, Yanqiu Wang, Ning Niu, Weidong Li, and Shaohua Li

.T. Li, S.H. 2008 Photosynthesis response to low sink demand by fruit removal in relation to photochemistry efficiency, photoinhibition, and photoprotection in peach trees Tree Physiol. 28 123 132 Eliezer, E

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Krishna S. Nemali and Marc W van Iersel

; Flexas et al., 1999 ). Fig. 5. Time averaged (three times) mean quantum efficiency in light (Φ PSII ), a measure of the extent to which absorbed light is used in photochemistry, from chlorophyll-a fluorescence measurements for ( A ) different

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R. Paul Schreiner and Carolyn F. Scagel

( Cook, 1966 ). The early work focused on sampling at four times, and this was later reduced to bloom and veraison. The leaf blades (or lamina, being the primary site of photochemistry) subsequently became the standard tissue for diagnosing vine nutrients

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Ockert Greyvenstein, Terri Starman, Brent Pemberton, Genhua Niu, and David Byrne

the cell, and drives photochemistry, it is dissipated as heat, or is reemitted as fluorescence. Chlorophyll fluorescence is usually measured as the ratio of variable fluorescence ( F v ) to maximum fluorescence ( F m ) ( Krause and Weis, 1991 ). Dark

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Geoffrey Weaver and Marc W. van Iersel

, J. 2019 A photochemistry-based method for optimising greenhouse supplemental light intensity Biosyst. Eng. 182 123 137

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Gaofeng Zhou, Bixian Li, Jianmei Chen, Fengxian Yao, Guan Guan, Guidong Liu, and Qingjiang Wei

seedlings J. Plant Physiol. 165 1330 1341 Han, S. Ning, T. Jiang, H.X. Yang, L.T. Li, Y. Chen, L.S. 2009 CO 2 assimilation, photosystem II photochemistry, carbohydrate metabolism and antioxidant system of citrus leaves in response to boron stress Plant Sci

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Joshua K. Craver, Jennifer K. Boldt, and Roberto G. Lopez

HortScience 50 522 529 Zhang, T. Folta, K. 2012 Green light signaling and adaptive response Plant Signal. Behav. 7 1 4 Zhen, S. van Iersel, M.W. 2017 Far-red light is needed for efficient photochemistry and photosynthesis J. Plant Physiol. 209 115 122

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Francesco Montesano and Marc W. van Iersel

, which is the maximum efficiency with which photosystem II can use absorbed photons to drive photochemistry (i.e., electron transport) and an indicator of damage to photosystem II, was decreased in the 70.4 m m NaCl treatment but similar to the control

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Brandon R. Smith and Lailiang Cheng

fluorescence was measured with a pulse-modulated fluorometer (FMS2; Hansatech Instruments, Norfolk, UK) as described by Chen and Cheng (2003) . Photosystem II quantum efficiency (proportion of light absorbed by PSII used in photochemistry) was measured at noon