Separate tags by commas.

Floriculture & Greenhouse Crop Production

Nursery & Christmas Trees

Department of Community Sustainability

Gardening in Michigan

Clear

Showing results for content tagged 'height management of ornamentals'. Search instead for the keyword 'height management of ornamentals'.

  • Height Management of Ornamentals

    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.


  • Using chlormequat chloride with success

    Published on April 18, 2014
    Chlormequat chloride is a plant growth retardant used to promote flowering or inhibit extension growth of floriculture crops grown in greenhouses, shadehouses and container nurseries.

  • Increasing plant height

    Published on October 17, 2014
    There are numerous ways to promote extension growth, including changes to plant culture or the growing environment, or applying a plant growth regulator that includes gibberellic acid.

  • The ABCs of PGRs

    Published on November 18, 2008
    There are now a large number of plant growth regulators registered for use on ornamental plants. This article discusses the various active ingredients and the product names for each.

  • Early growth regulator drenches on poinsettia

    Published on November 18, 2010
    A technique to inhibit stem extension of poinsettia is to apply an early, low-dose PGR drench. This article will compare the efficacy of low-dose and early drench applications of paclobutrazol on poinsettia crops.

  • Tips on using uniconazole

    Published on April 18, 2011
    This article provides suggestions for how and when to use uniconazole (e.g., Sumagic and Concise) as a spray or drench to obtain desirable, more compact ornamental plants.

  • Non-chemical height control techniques

    Published on May 18, 2013
    There are several environmental and cultural practices that can produce shorter plants, but strategies must be implemented over a period of time to achieve desired outcomes.

  • Successful use of paclobutrazol

    Published on April 18, 2012
    Paclobutrazol is probably the most widely used plant growth retardant in the production of floriculture crops because of its wide range of efficacy and moderate- to long-lasting response.

  • How to avoid GA carryover

    Published on August 18, 2010
    Gibberellins (GA) can bind to plastic and concrete, and potentially cause excessive growth, especially in sensitive crops.

  • Ethylene in floriculture

    Published on January 7, 2019
    Ethylene can be a harmful contaminant in greenhouses and during shipping, but there are also situations when ethylene can elicit desirable responses in greenhouse crop production.

  • Getting results with liner dip

    Published on November 18, 2008
    In this article, we provide four keys to successful use of using plant growth regulators as liner (or plug) dips.

  • Increasing poinsettia size

    Published on October 18, 2007
    Are your potted poinsettias vertically challenged? When applied on young stems before the first hint of color, chemicals can help promote stem extension and take your plants to new heights.

  • Do it yourself (conduct your own trials)

    Published on May 18, 2010
    Many articles often recommend that growers perform their own smal-scale tests for the specified procedures. Here are a few tips for conducting your own experiments.

  • Brushing plants for height control

    Published on February 18, 2009
    “Brushing” plants is proving to be a promising, albeit unconventional, height control technique. When touched or moved, plants release ethylene, which can inhibit elongation.

  • The PGR ancymidol

    Published on February 17, 2015
    Plant growth retardants (PGRs) that contain the active ingredient ancymidol aren’t as commonly used in floriculture as most other PGRs, but there are some potential upsides that merit consideration.

  • Controlling height with temperature drops

    Published on April 17, 2009
    Temperature drop is the practice of lowering the temperature, typically by 5-15 degrees F, before sunrise. Generally, the greater the magnitude of the temperature drop, the stronger it suppresses plant height.

  • Success with PGRs

    Published on March 18, 2019
    Regardless of the desired outcome, successful use of a plant growth regulator (PGR) requires multiple considerations and attention to detail. This article summarizes practices to obtain the best results from your PGR applications.

  • Understanding how PGRs work

    Published on May 17, 2017
    Plant growth regulators are chemical compounds that regulate various growth and developmental processes in plants, such as seed germination, rooting, branching, flowering, fruit development, dormancy and plant growth habit.

  • PGRs on perennials

    Published on June 18, 2008
    Learn how to choose the right plant growth regulator (PGR) and application method for commercial production of herbaceous perennial crops.

  • Successful use of the PGR daminozide

    Published on August 18, 2013
    The plant growth regulator (PGR) daminozide is used as a foliar spray primarily to inhibit extension growth of ornamental crops.

  • PGR drench guidelines

    Published on April 18, 2007
    A drench of a plant growth regulator (PGR) is an application of a relatively large volume of solution at a low concentration to the growing media. Learn more about which chemicals are appropriate for drenches, as well as suggested volumes and rates.