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Floriculture & Greenhouse Crop Production

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  • Monitoring Growth of Bedding Plant Seedlings Using Images

    Published on October 13, 2019
    Monitoring growth and development is an important practice to ensure that crops remain on schedule and to rectify issues early in production. New imaging technology provides some of the most efficient, non-destructive, and accurate means to monitor growth.

  • Greenhouse environment checklist

    Published on October 10, 2019
    Every autumn, ensure greenhouse systems that regulate the major environmental parameters are working well and positioned properly. This article highlights many of the control systems and equipment to check.

  • Forcing Long-Day Perennials into Flower with High-Intensity LEDs

    Published on October 3, 2019
    Providing long-day perennial plants with supplemental lighting containing greater than 15 μmol∙m–2∙s–1 of blue light is as effective at inducing flowering as low-intensity day extension lighting and supplemental lighting from HPS lamps.

  • 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.

  • Managing light pollution

    Published on August 9, 2019
    While electric lighting is increasingly used in greenhouses to increase plant growth, yield, and quality, it can have unintended consequences to neighboring areas at night.

  • An overview of long-day lighting

    Published on July 17, 2019
    There are a lot of factors to consider for effective and efficient long-day lighting. This article provides a brief overview of when and how to deliver lighting to create long days inside greenhouses.

  • Is green light useful to plants?

    Published on June 17, 2019
    There is some confusion about the efficacy of green light at promoting photosynthesis. This article explains why and how green light is useful to plants.

  • The economics of lighting young plants indoors

    Published on June 12, 2019
    This article provides the framework of the economics of indoor lighting of young plants (transplants). It includes example costs for an indoor plant factory in Japan, and provides highlights for indoor lighting used by two commercial growers in the U.S.

  • Leafy greens: Sole-source light intensity

    Published on June 6, 2019
    Indoor production of leafy greens, Part 4 of 4: Research shows that providing high-intensity sole-source lighting to seedlings can increase harvestable yield of fresh-cut basil.

  • DLI 'requirements'

    Published on May 10, 2019
    This article provides daily light integral (DLI) guidelines to produce plants of at least moderate quality, assuming plants are grown at moderate temperatures.

  • 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.

  • 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.

  • Crops suitable for vertical farming

    Published on April 10, 2019
    The costs to build and operate an indoor (vertical) farm are high, so only certain types of crops are potentially profitable. This articles discusses some some of the crop characteristics that lend themselves to indoor production.

  • 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?

  • 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.

  • Green and blue LED lighting

    Published on March 6, 2019
    Indoor production of leafy greens, Part 2 of 4: How green light affects lettuce growth can depend on blue and red light.

  • 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.

  • Selecting an LED fixture

    Published on February 18, 2019
    With so many LED products now on the market, choosing the right lighting fixture is a crucial decision. This article discusses factors to consider when choosing an LED fixture for plant applications.

  • How green light affects floriculture crops

    Published on February 13, 2019
    Is green light really a safe light for floriculture crops? Researchers at Michigan State University find out the impact it has on crops that flower in response to the day length.

  • 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.