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  • Managing temperature during propagation

    Published on December 19, 2014
    Temperature primarily drives the rate of root and shoot development while light provides the energy to promote that growth. When one of these environmental factors is not optimized, rooting is delayed.

  • Successfully propagating cuttings takes planning

    Published on August 19, 2006
    Successful propagation requires starting with high-quality, uniform cuttings that are vegetative, not excessively long, and free of insects, diseases and viruses.

  • Growing ornamental seedlings under white LEDs

    Published on November 15, 2018
    Michigan State University researchers discuss the impacts of using white light on plant growth and human vision, as well as energy considerations when growing ornamental seedlings indoors.

  • Propagating poinsettias

    Published on August 19, 2007
    Poinsettia propagation can be challenging, especially during the summer. Here are some tips to help ensure successful propagation of nonrooted poinsettia cuttings.

  • Getting the most out of cuttings

    Published on December 19, 2006

  • Propagating orchids

    Published on August 19, 2011
    Some orchids are among the most difficult plants to propagate. This article discusses the different ways that orchids can be propagated including by division, offshoots, tissue culture, and seed.

  • PGR rates and timing for plug production

    Published on November 18, 2003
    Application rates and timing of the plant growth regulator Bonzi (active ingredient: paclobutrazol) was put to the test in this Michigan State University research on seedling plugs of bedding plants.

  • A new approach for floriculture

    Published on June 19, 2007
    Research on cuttings conducted by a cooperative group of academics looks at the essential factors that determine the success or failure of cuttings.

  • How to manage stock plants

    Published on December 19, 2006
    The quality of a stock plant has a direct effect on the quality and number of cuttings that can be harvested. Poor stock plants yield poor cuttings, which can lead to nonuniform and low-quality finished plants.

  • Plug storage

    Published on September 29, 1994
    This 20-page pdf document contains research-based information on storing seeding plugs.

  • Lighting young plants indoors

    Published on February 4, 2019
    Part 1 of a 5-part series is an introduction to producing young plants indoors under fully controlled environments.

  • Managing light to improve rooting of cuttings

    Published on September 7, 2016
    Many growers can improve the rooting of cuttings by more closely managing light during propagation.

  • Managing the cuttings environment

    Published on December 19, 2006

  • Cutting propagation

    Published on December 19, 2008

  • 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.

  • Successful poinsettia propagation

    Published on December 19, 2009

  • Keeping it Green

    Published on November 18, 2013
    Applications of plant growth regulators such as benzyladenine (BA; a cycokinin) and/or gibberellic acid (GA) may suppress lower-leaf yellowing and senescence.

  • The latest on plug production: Seedling plug size effects on flowering time

    Published on September 22, 2012
    We evaluated the effect of two plug sizes on finish crop time, plant quality characteristics, and estimated production costs for five bedding plant species.

  • LEDs: Far red & light intensity interaction

    Published on March 4, 2019
    Part 2 of a 5-part series explains how far-red light and light intensity (the photosynthetic photon flux density) interact to influence growth of young plants indoors, under fully controlled environments.

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