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Taiwan Agricultural Research Institute, Council of Agriculture, Executive Yuan--Publication-Special Publication of TARI-No.145

No.145

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Plant water use and drought stress physiology: Manipulating irrigation for efficient water use and high quality plants

Plant water use and drought stress physiology: Manipulating irrigation for efficient water use and high quality plants

Marc van Iersel1,*, Stephanie E. Burnett2

1 Department of Horticulture, University of Georgia, 1111 Miller Plant Science Building, Athens, GA 30602, USA
2 Department of Plant, Soil, and Environmental Sciences, University of Maine, 5722 Deering Hall, Orono, ME 04469, USA
* Author for correspondence: mvanier@uga.edu

Abstract

    Irrigation systems that can control watering based on soil moisture sensors are a powerful tool for both greenhouse irrigation and drought stress physiology research. This paper provides and overview of research at the University of Georgia. Three studies are discussed: a study describing the effects of substrate water content (θ) on growth and water use of petunia, a study looking at growth and drought stress physiology of vinca, and a study looking at control of both irrigation and fertigation using in situ soil moisture and electrical conductivity sensors. This research has practical applications for greenhouse irrigation and fertilization management, while also furthering drought stress physiological research.