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  • Floriculture & Greenhouse Crop Production

    MSU Extension’s floriculture educational and applied research programs help improve greenhouse crop production and business management by providing trusted information on new production techniques and management strategies.


  • The importance of light uniformity

    Published on March 3, 2017
    Managing light is obviously critical to the production of crops grown in controlled environments. When considering the different dimensions of light, we often overlook the importance of light uniformity.

  • Replacing incandescent lamps

    Published on August 23, 2012
    Incandescent lamps can at least partly be replaced by compact fluorescent bulbs and/or LEDs without losing the ability to control flowering of ornamentals grown in greenhouses.

  • Purple vs. pink vs. white LED fixtures

    Published on September 10, 2018
    LED fixtures that emit a purplish light are usually less preferred by people, but are often the most efficient at converting electricity into light useful to plants.

  • Integrated Pest Management in Greenhouse Crops (E3296)

    Published on November 23, 2015
    A resources in learning scouting and monitoring for pests and aids in determining if intervention to control the pest is warranted.

  • Far red is the new red

    Published on February 6, 2017
    Adding far red to red and blue light from LEDs brings control of plant growth to the next level.

  • Know your application techniques

    Published on August 18, 2006
    Be sure to select the proper plant growth regulator application technique to achieve your desired crop size.

  • Red light and plant growth

    Published on August 7, 2016
    Many LED fixtures developed for plant growth applications emit a large proportion of red light. Learn about the roles of red light in photosynthesis, extension growth, and flowering, as well as human perception.

  • Energy-efficient annuals 4: Dianthus & snapdragon

    Published on June 22, 2009
    Researchers from Michigan State University present research-based information for scheduling dianthus and snapdragon in an energy-efficient and predictive manner. Part 4 of a 12-part series.

  • Choosing growth regulators doesn't need to be a chore

    Published on October 18, 2007
    More growth regulators with the same active ingredient are available. Read these five considerations to help choose which one will best meet your needs.

  • Greenhouse energy efficiency tips

    Published on October 12, 2020
    This article provides a short summary of what actions or investments can be made to improve the energy efficiency of greenhouse operations.

  • Using ABA to reduce water loss

    Published on August 18, 2011
    Michigan State researchers investigated how an experimental formulation of abscisic acid (ABA) influenced drought stress tolerance of finished potted garden chrysanthemums and aster. The product mentioned is not commercially available.

  • Red and Blue Radiation: Explore the Efficacy of LED Supplemental Lighting for High-Wire Vegetable Transplants

    Published on August 10, 2020
    High-quality vegetable transplants for high-wire production require a minimum DLI of 13 mol or greater. Therefore, supplemental lighting is commonly used to increase the DLI during light limited times of the year. Can LEDs be utilized?

  • Responses to temperature & light

    Published on January 29, 2008
    Longer growing time at cooler temperatures or shorter growing time with warmer temperatures? That question is addressed for annual bedding plants in this article.

  • 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.

  • A little far-red light goes a long way

    Published on May 3, 2019
    Part 4 of a 5-part series presents information on how a relatively low intensity of far-red light influences seedlings grown in fully controlled, indoor environments.

  • Chemical Weed Control Strategies for Nurseries and Landscapes: Part II

    Published on December 1, 2019
    Chemical weed control by application of preemergent (PRE) and postemergent (POST) herbicides is the most effective and economic method to control weeds in landscape planting beds and in container nursery production systems.

  • Leafy greens: Carbon dioxide injection

    Published on April 1, 2019
    Indoor production of leafy greens, Part 3 of 4: Is carbon dioxide enrichment beneficial for indoor production of basil seedlings?

  • Controlling flowering of Echinacea

    Published on February 8, 2013
    Research-based information is presented about how to control the flowering of purple coneflower (Echinacea) for commercial production.

  • 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.

  • Accelerating growth: What works and what does not

    Published on April 1, 2018
    The most effective way growers can accelerate plant development is to increase the greenhouse air temperature.