Information below focuses on how light intensity (irradiance), light color (quality) and day length (photoperiod) affect plant growth. More specific information of lighting requirements of specific crops can be found in the drop down menus, and pages, related to those crops.
Factors that Affect Flowering:
What Factors Impact Flowering of Different Species (Erwin, 2016)
Determination of photoperiodic response group and effect of supplemental irradiance of flowering of several bedding plant species (Erwin and Warner, 2001).
How does daylength affect flowering of spring annuals? (Erwin, Warner and Mattson, 2002).
Fundamentals of flowering in plants: Supplemental lighting and earliness of flowering (Erwin, Mattson and Warner, 2003).
Fundamentals of flowering in plants: Juvenility in seed-propagated annuals and how supplemental lighting can affect it. (Erwin, Mattson and Warner, 2003).
Daylength effects on bedding plants I (Erwin, Warner and Mattson, 2004)
Saturating DLIs for flowering (Runkle and Blanchard, 2011).
Daily light integral & flowering of annuals (Blanchard and Runkle, 2010).
Efficacy of lamp types at controlling flowering (Runkle, 2016).
Light effects on bedding plants (Erwin et al., 2017)
General Lighting:
Light perception, signaling and plant responses to spectral quality and photoperiod in natural and horticultural environments (Editorial, 2016).
Toward an optimal spectral quality for plant growth and development: The importance of radiation capture. (Bugbee, 2016).
Light Conversion and Units:
Photometric, radiometric, and quantum light units of measure: A review of procedures for introconversion (Thimijan and Heins. 1983).
Lighting Needs calculator
Lamp Number Calculator:
Lamp Number Calculator (N. Matteson).
Daily Light Integral:
Lighting Up: part 14 (Verberkt, Heins and Blom. 2004).
Saturating DLIs for flowering (Runkle and Blanchard, 2011).
Daily light integral & flowering of annuals (Blanchard and Runkle, 2010).
National DLI Images (Faust)
Supplemental Lighting (Photosynthetic):
Fundamentals of flowering in plants: Supplemental lighting and earliness of flowering (Erwin, Mattson and Warner, 2003).
Saturating DLIs for flowering (Runkle and Blanchard, 2011).
Managing light during propagation (Lopez and Runkle, 2005).
LEDs versus HPS: A reality check (Runkle, Nelosn, Bugbee, 2014).
The basics & beyond: Understanding the differences between photoperiodic and supplemental lighting (Lopez, 2013)
Growing seedlings under LEDs: Part two (Wollaeger and Runkle, 2014)
LEDs:
Control Flowering with LEDs (Meng and Runkle).
Growing seedlings under LEDs: Part two (Wollaeger and Runkle, 2014)
Comparing LED lighting to HPS lamps for plug production (Randall and Lopez, 2013)
Current status and recent achievements in the field of horticulture with the use of light-emitting diodes (LEDs) (Bantis et al., 2018).
Light signaling and plant responses to blue and UV radiations - Perspectives for applications in horticulture (Huche-Thelier et al., 2016).
Commercial transition to LEDs: A pathway to high-value products. (Stutte, 2015).
Lighting young plants indoors (Runkle et al., 2019).
Early scaling-up challenges with LED lighting (Frantz and Runkle, 2020).
UV/Blue Light:
Light signaling and plant responses to blue and UV radiations - Perspectives for applications in horticulture (Huche-Thelier et al., 2016).
Species-specific differences in synthesis of flavonoids and phenolic acids under increased periods of enhanced blue light. (Taulavuori et al., 2016).
Red: Far Red Lighting:
Plant responses to red and far-red lights, applications in horticulture (Demontes-Mainard et al., 2016).
An intermediate phytochrome photoequilibria from night-interruption lighting optimally promotes flowering of several long-day plants (Craig and Runkle, 2016).
LEDs:Far red & light intensity interaction (Park and Runkle, 2019).
Red:Blue Lighting:
Physiological responses of cucumber seedlings under different blue and red photon flux ratios using LEDs (Hernandez and Kubota, 2016).
Solar:
PV for greenhouse lighting
High Pressure Sodium Lights:
Comparing LED lighting to HPS lamps for plug production (Randall and Lopez, 2013)
Supplemental lighting (Photoperiodic):
Replacing INC with LEDs (Runkle, 2014).
Managing photoperiod in the greenhouse (Currey, Lopez, Runkle, 2013).
The basics & beyond: Understanding the differences between photoperiodic and supplemental lighting (Lopez, 2013)
Cyclic Lighting:
Cyclic long-day lighting (Runkle, 2007).
Boom Lighting (Runkle and Heins, 2015).
Proudly powered by Weebly