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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.


  • Managing crop height

    Published on February 3, 2021

    Professor Emeritus Royal Heins discusses the history of DIF, which is the temperature difference between the day and night, and how it can be used to manage plant height of floriculture crops produced in greenhouses. He also discusses graphical tracking of the height of potted flowering plants to help growers achieve their desired height targets.

  • Roberto Lopez

    Associate Professor
    rglopez@msu.edu
    517-353-0342

  • Jeremy Jubenville

    Floriculture Educator
    jubenvi3@msu.edu
    269-384-8010

  • Heidi Lindberg

    West Michigan Greenhouse and Nursery Education & Research
    wollaege@msu.edu
    616-994-4701

  • Erik Runkle

    Professor
    runkleer@msu.edu
    (517) 353-0350

  • Control stem length with liner dips

    Published on November 18, 2011
    Dipping trays of rooted liners and plugs into a PGR solution, or liner dip, is a newer method of efficiently applying root-absorbed PGRs that controls stem elongation after transplanting.

  • Rice hulls and PGRs

    Published on November 18, 2010
    How do rice hulls in your potting media affect your plant growth regulators?

  • Non-chemical height control strategies for greenhouse crops: part II

    Published on April 28, 2006
    In this issue, we focus on a few cultural strategies that can be used to control plant height.

  • Potential Effect of Water Quality on PGRs

    Published on November 18, 2015
    Final spray water pH after plant growth regulation addition varies with pH and alkalinity of your carrier water.

  • A New Height Control Possibility for Easter Lilies

    Published on November 18, 2012
    Flurprimidol drenches have been shown to successfully control height of oriental lilies and Dutch bulbs such as hyacinth, narcissus and tulips, but there is no data that shows how effective flurprimidol drenches are on Easter lilies.

  • How does Spray Water Alkalinity affect the Efficacy of Commonly used Plant Growth Regulators?

    Published on November 7, 2017
    Did you know that pH of the spray solution and air temperature at application can influence the efficacy of some PGRs? We will show you how to save time and money, by monitoring and adjusting two often overlooked factors that can influence PGR efficacy.

  • 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.

  • Sumagic on bedding plants

    Published on April 18, 2005
    Usage of this highly active plant growth regulator (active ingredient: uniconazole) on bedding plants is for the experienced commercial grower. Read how to use it, when it’s best used, and how much is recommended based on this MSU research.

  • Increasing height of chrysanthemum with PGR drenches

    Published on July 10, 2017
    Results are presented for an experiment in which we compared the efficacy of spray versus drench applications of a plant growth regulator (PGR) at increasing plant height of potted chrysanthemum plants.

  • Effective use of PGRs

    Published on July 18, 2014
    Plant growth regulators (PGRs) are sometimes not used to their potential; they are sometimes applied too late or at an inappropriate rate. Here are some important considerations for getting the most out of your PGRs.

  • 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.

  • Environment and PGR interactions

    Published on December 17, 2015
    When plant growth regulators (PGRs) are applied as sprays, their efficacy can be greatly influenced by the environment. Understanding how environmental factors influence PGR spray efficacy can lead to more effective and predictable plant responses.

  • Plug / liner dip guidelines

    Published on February 18, 2013
    A plug or liner dip is a plant growth retardant (PGR) application technique for ornamentals in which a tray of finished young plants is placed into a shallow PGR solution for a short period of time.

  • A new height control possibility for daffodils and hyacinths

    Published on March 18, 2013
    In this first of a two-part series, we look at ethephon (e.g., Florel) release as affected by substrate pH, and results of drenches on daffodils and hyacinths.

  • 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.