Linear relation between leaf xylem water potential and transpiration in pearl millet during soil drying

• Published in: Plant and soil Vol. 447; no. 1-2; pp. 565 - 578
• Main Authors: Cai, Gaochao, Ahmed, Mutez Ali, Dippold, Michaela A., Zarebanadkouki, Mohsen, Carminati, Andrea
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.02.2020; Springer; Springer Nature B.V
• Subjects: Analysis; Barley; Biomedical and Life Sciences; Conductance; Drying; Ecology; Electric properties; Flowers & plants; Hydraulic measurements; Hydraulics; Hydrogeology; Leaves; Life Sciences; Linearity; Measurement methods; Millet; Moisture content; Osmotic potential; Pennisetum glaucum; Plant Physiology; Plant Sciences; Pressure chambers; Regular Article; Resistance; Soil conductivity; Soil erosion; Soil moisture; Soil properties; Soil Science & Conservation; Soil water; Soil water potential; Soils; Transpiration; Water flow; Water potential; Water shortages; Water supply; Water uptake; Xylem; Germany; Root pressure chamber; Balancing pressure; (L.) R.Br; Plant hydraulic conductance; Vapor pressure deficit; Stomatal conductance

Aims As soil dries, the loss of soil hydraulic conductivity limits water supply to the leaves, which is expected to generate a nonlinear relationship between leaf water potential ( ψ leaf ) and transpiration ( E ). The effect of soil drying and root properties on ψ leaf and E remains elusive. Method...