Transpiration response to soil drying versus increasing vapor pressure deficit in crops: physical and physiological mechanisms and key plant traits

• Published in: Journal of experimental botany Vol. 74; no. 16; pp. 4789 - 4807
• Main Authors: Koehler, Tina, Wankmüller, Fabian J P, Sadok, Walid, Carminati, Andrea
• Format: Journal Article
• Language: English
• Published: UK Oxford University Press 02.09.2023
• Subjects: eXtra Botany; soil–plant hydraulics; root water uptake; soil drying; vapor pressure deficit; Plant traits; stomatal regulation; transpiration rate

Abstract The water deficit experienced by crops is a function of atmospheric water demand (vapor pressure deficit) and soil water supply over the whole crop cycle. We summarize typical transpiration response patterns to soil and atmospheric drying and the sensitivity to plant hydraulic traits. We ex...