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Floriculture & Greenhouse Crop Production

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Showing results for content tagged 'light management in greenhouses and controlled environments'. Search instead for the keyword 'light management in greenhouses and controlled environments'.

  • Light Management in Controlled Environments

    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.


  • Problems with footcandles, lux and lumens

    Published on September 23, 2013
    The horticultural industry should discontinue use of photometric units such as lumens, lux and foot-candles. These units are based on people’s perception of light and are a highly misleading indicator of plant growth and flowering applications.

  • LEDs: Blue & far-red light

    Published on April 10, 2019
    Part 3 of a 5-part series summarizes results from an indoor lighting experiment with floriculture crop seedlings, where we determined whether blue light could nullify the effects of far red on stem elongation, without inhibiting flowering.

  • 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.

  • Growing plants with green light

    Published on June 7, 2017
    Green light can be defined as radiation with wavelength between 500 and 600 nanometers. Green light is within the photosynthetically active waveband of 400 to 700 nm, yet its effects on plant growth and development are not well understood.

  • 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.

  • Lighting the way with LEDs

    Published on July 10, 2012
    Light-emitting diodes (LEDs) are one of the trendiest technologies in the greenhouse industry. There are particularly interesting opportunities with LEDs in the production of young plants and highwire vegetable crops.

  • 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.

  • 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.

  • Making sense of light sensors

    Published on February 10, 2021
    In this article, we discuss light sensors, light units, and how to convert light units from a greenhouse environmental control computer into more meaningful values.

  • 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.

  • “Hidden” benefits of supplemental lighting

    Published on April 7, 2021
    High light can at least partly decrease the effects of other environmental parameters on greenhouse crops. These can be considered “hidden” benefits because the effects are often not obvious.

  • Early scaling-up challenges with LED lighting

    Published on December 14, 2020
    The fundamental advantages of light-emitting diode (LED) lighting are clear, but it is still a relatively new technology and unfortunately, one can be reminded of that when the jump is made to replace conventional lighting fixtures with LEDs.

  • LEDs vs. HPS lamps: A reality check

    Published on June 23, 2014
    With all of the promise and potential of LEDs, some myths and misconceptions are being perpetuated - hence the need for a reality check.

  • 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.

  • Including far red in an LED lighting spectrum

    Published on September 9, 2019
    Growers sometimes wonder whether it is beneficial to include far-red radiation in a light-emitting diode (LED) spectrum. Not surprisingly, it depends on the application and crop.

  • Light spectrum for different applications

    Published on September 8, 2021
    This article discusses the effects of the light spectrum on plants, and conceptually how it can be used for different greenhouse and indoor crop production applications.

  • Lighting metrics... and what matters

    Published on October 23, 2015
    This article discusses some of the metrics used to describe or quantify the light emitted from various fixtures (or LED arrays), some of which are highly relevant to plant applications and others that are only applicable to people.

  • Increasing the daily light integral

    Published on August 6, 2021
    The daily light integral (DLI) refers to the cumulative amount of light received per day, which influences the quality and yield of horticultural crops. This article discusses ways to increase the DLI for plants grown in greenhouses.

  • 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.

  • 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.