MONITORING WATER STRESS IN ORNAMENTALS: SIGNAL DETECTION AND INTERPRETATION

S. Spinarova, L. Hendriks
Understanding plant responses to water deficiency has become globally one of the most challenging tasks in crop management, plant stress physiology and breeding technologies. It has stimulated the demand of growers, breeders and researchers of ornamental plants for efficient and reliable methods to detect and quantify water stress before the plants will be damaged irreversibly. This paper summarizes our experience and investigations using gas exchange technology, ultrasonic acoustic emission (UAE) technique and thermal imaging, as applied in horticulture research. In projects testing drought tolerance of bedding plants or monitoring water status of cut flowers during the post harvest life it could be concluded: 1) gas exchange and UAE measurements under stress conditions provide especially robust data for cultivar screening, 2) thermal imaging proves best for application in irrigation scheduling regarding the easy handling and good reliability of interpretations and 3) UAE profiles in short-term stress tests appear as meaningful indicators for prediction of cut flowers’ longevity.
Spinarova, S. and Hendriks, L. (2015). MONITORING WATER STRESS IN ORNAMENTALS: SIGNAL DETECTION AND INTERPRETATION. Acta Hortic. 1060, 31-34
DOI: 10.17660/ActaHortic.2015.1060.3
https://doi.org/10.17660/ActaHortic.2015.1060.3
applied horticulture research, drought stress, stress indicator, thermal imaging, transpiration rate, turgor loss, ultrasonic acoustic emissions, water deficit
English

Acta Horticulturae