The importance of soil drying and re-wetting in crop phytohormonal and nutritional responses to deficit irrigation

• Published in: Journal of experimental botany Vol. 66; no. 8; pp. 2239 - 2252
• Main Authors: Dodd, Ian C., Puértolas, Jaime, Huber, Katrin, Pérez-Pérez, Juan Gabriel, Wright, Hannah R., Blackwell, Martin S. A.
• Format: Journal Article
• Language: English
• Published: England Oxford University Press 01.04.2015
• Subjects: Agricultural Irrigation; Desiccation; Nutritional Physiological Phenomena - drug effects; Plant Growth Regulators - pharmacology; REVIEW PAPER; Signal Transduction - drug effects; Soil; ABA; alternate wetting and drying; xylem sap; root-to-shoot signalling; partial rootzone drying; soil phosphorus dynamics

Soil drying and re-wetting (DRW) occurs at varying frequencies and intensities during crop production, and is deliberately used in water-saving irrigation techniques that aim to enhance crop water use efficiency. Soil drying not only limits root water uptake which can (but not always) perturb shoot...