• Supplemental lighting guidelines for young plants

    Published on January 24, 2010
    Recent university research has examined how plants respond to daily light integral at different times of the year in various areas of the country.

  • Strategies for supplemental lighting

    Published on November 24, 2009
    Different methods of greenhouse lighting have different purposes — sometimes to extend the photoperiod and sometimes to increase the daily light interval. Knowing their differences may help you make better choices for your operation.

  • LEDs in floriculture

    Published on June 24, 2009
    LED technology, first used in the mid-1980s, has come a long way and may make its way into the greenhouse in coming years.

  • Manipulating light in the greenhouse

    Published on June 24, 2009
    This article presents research on a high-pressure sodium fixture with an oscillating reflector to regulate flowering of greenhouse crops.

  • Providing long-days with CFLs

    Published on March 24, 2009
    Answering the question of can compact fluorescent lamps save energy and still light your crops adequately?

  • Tips for using light sensors

    Published on January 24, 2009
    In winter, low light levels can limit production. And in summer, too much light can stress crops. Measuring light accurately is one step to harnessing growing conditions.

  • What is your photoperiod?

    Published on September 24, 2008
    Understanding your location's natural photoperiod will help determine the most economical strategy for providing long days when needed

  • Greenhouse shading options

    Published on March 24, 2008
    As spring approaches and days get gradually longer, growers need to look at ways to limit the light and heat that affect their most sensitive crops.

  • LIP it! (Limited inductive photoperiod)

    Published on January 24, 2008
    Providing a limited inductive photoperiod (LIP) can produce compact long-day plants and energy-cost savings.

  • Cyclic long-day lighting

    Published on December 24, 2007
    Shortening the duration of darkness with night-interruption lighting can help some plants flower earlier.

  • Maximizing supplemental lighting

    Published on November 24, 2007
    It’s no secret that increasing the amount of daily light integral that greenhouse crops receive per day can result in higher-quality, healthier product. But do you know how to get the most value out of supplemental lighting?

  • Light quality defined

    Published on June 24, 2007
    Helping growers understand the fundamental dimensions of light.

  • The benefits of lighted plugs

    Published on March 24, 2007
    One of the most cost-effective uses of supplemental lighting is during the production of seedling plugs and rooted liners. Learn how high daily light integrals benefit plants.

  • Providing long days

    Published on January 24, 2007
    Crop development can be accelerated with the use of low-intensity lighting. Here are the answers to some common questions about photoperiodic lighting.

  • Do you know what your DLI is?

    Published on December 24, 2006
    Daily light integral has a profound effect on your plants. Learn how to measure DLI in your greenhouse three different ways.

  • Daily light integral defined

    Published on November 24, 2006
    Breaking down daily light integral (DLI) and how to use it to a greenhouse growers advantage.

  • Light it up!

    Published on July 24, 2006
    Erik Runkle talks about how to measure and maintain light for new and learning greenhouse owners.

  • Managing light during propagation

    Published on June 24, 2005
    Michigan State University research examines how environmental factors - especially light - influence the rooting and growth of vegetative annual cuttings.

  • 10 lighting tips to help your bottom line

    Published on April 24, 2005
    Suggestions and advice to make the most of the light your plants receive.

  • Temperature and light on bedding plants

    Published on July 29, 2003
    Michigan State University research shows what effects temperature and daily light integral have on bedding plant production.

  • Grower 101: Controlling photoperiod

    Published on October 24, 2002
    Since many important “cash” crops are photoperiodic, a basic knowledge of manipulating daylength is essential.