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Utah State University

Controlled Environments

Sensitivity

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Sensitivity Of Seven Diverse Species To Blue And Green Light: Interactions With Photon Flux, Michael Chase Snowden, Kevin R. Cope, Bruce Bugbee Feb 2016

Sensitivity Of Seven Diverse Species To Blue And Green Light: Interactions With Photon Flux, Michael Chase Snowden, Kevin R. Cope, Bruce Bugbee

Controlled Environments

The effects of spectral quality on growth, carbon-partitioning and whole-plant net assimilation remain poorly understood. Much of the research data is at light levels less than 10% of summer sunlight so interactions between light quality and quantity are poorly characterized.Several studies have reported that growth is increased under fluorescent lamps compared to mixtures of wavelengths from LEDs. Conclusions regarding the effect of green light fraction range from detrimental to beneficial. Here we report the effects of eight blue and green light fractions at two photosynthetic photon fluxes (PPF; 200 and 500 µmol m-2 s-1; daily light integral, …