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This article in CS

  1. Vol. 28 No. 4, p. 712-713
    Received: Aug 19, 1987

    * Corresponding author(s):
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An Intermittent Aeroponics System

  1. Lloyd A. Peterson  and
  2. Armand R. Krueger
  1. Dep. of Horticulture, 1575 Linden Dr., Univ. of Wisconsin, Madison, WI 53706



An intermittent aeroponic system was designed and tested for potential use in plant growth studies. Cucumber (Cucumis sativus L.) were grown in the system from the cotyledon stage to flowering and fruiting within 40 d on a misting schedule of 7 s at 10-min intervals with about one half strength Hoagland's solution. The root environment was controlled at 20 ± 1.1 °C; however, other temperatures can be established. Root growth was rapid with good branching and root hair development. The proposed plant growth system provides the benefits of easy access to the root system and control of the misting solution composition as related to elemental concentration or to an application of a plant growth regulator at different stages in the developing root. It may also provide a system for testing short-term water stress in relation to plant development. The system as described has been running continuously for 32 wk without an operational problem.

Contribution from the Horticulture Dep., College of Agricultural and Life Sciences, Univ. of Wisconsin-Madison.

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