Lighting

LED Lighting Applications for Plants

I first wrote about light-emitting diodes (LEDs) in this column in 2009, and although much of what I wrote then is still true today, some things have substantially changed for the better. In particular, fixtures... more »

Using Vertical Farming to Supply Locally Grown Produce

As a youth, Dan Albert, owner of Farmbox Greens in Seattle, Washington, worked on a farm in upstate New York. But his past growing experience is a far cry from his current vertical farm operation... more »

Managing Light to Improve Rooting of Cuttings

The characteristics of a high-quality liner vary somewhat from crop to crop and intended use, but generally, the goal is to produce cuttings with a well-developed root system in a short period of time. Successful... more »

Red Light and Plant Growth

When you hear the term “red light,” what do you think of? Stopping at a traffic light? A certain district in Amsterdam? Light from LEDs? Red light can convey caution or danger or stopping at... more »

The Impact of DLI, Light Quality and Photoperiod on Bedding Plant Flowering Response

Successful scheduling of annual bedding plants for specific market dates requires an understanding of how plants respond to temperature, light intensity and quality and photoperiod. In this article we will focus on daily light integral... more »

University of Florida researchers Kevin Folta (left) and Thomas Colquhoun are studying the effects LED lights have on the state’s high value crops, including strawberries and tomatoes.

Potential of LEDs Expected to Extend Well Beyond Production

Much of the research and trade press coverage related to light emitting diodes (LEDs) applies to their use with controlled environment agriculture, including greenhouse and vertical farming production. However, LEDs are also being studied for... more »

Efficacy of Lamp Types at Controlling Flowering

When the nights are long (the days are short), delivering low-intensity lighting can regulate flowering of photoperiodic ornamental plants. Incandescent lamps have been used for decades to successfully inhibit flowering of short-day plants and promote... more »

Innovations in Grow Lighting

Innovations in grow lighting are paramount to the current and future success of controlled environmental agriculture (CEA) and greenhouse supplemental lighting. No single grow light is good for every single application; the term we use... more »

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GPN recognizes 40 industry professionals under the age of 40 who are helping to determine the future of the horticulture industry. These individuals are today’s movers and shakers who are already setting the pace for tomorrow.

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