Surface tension, rheology and hydrophobicity of rhizodeposits and seed mucilage influence soil water retention and hysteresis

• Published in: Plant and soil Vol. 437; no. 1/2; pp. 65 - 81
• Main Authors: Naveed, M., Ahmed, M. A., Benard, P., Brown, L. K., George, T. S., Bengough, A. G., Roose, T., Koebernick, N., Hallett, P. D.
• Format: Journal Article
• Language: English
• Published: Cham Springer Science + Business Media 01.04.2019; Springer International Publishing; Springer; Springer Nature B.V
• Subjects: Analysis; Barley; Biomedical and Life Sciences; Contact angle; Corn; Dialysis; Drying; Ecology; Exudates; Hydraulic properties; Hydrogels; Hydrophobicity; Hydroponics; Hysteresis; Hysteresis (Physics); Influence; Life Sciences; Loam; Loam soils; Moisture content; Mucilage; mucilages; Osmotic potential; osmotic pressure; Plant Physiology; Plant Sciences; Polyethylene glycol; Properties; Regular; REGULAR ARTICLE; Retention; Rheological properties; Rheology; rheometers; Rhizosphere; root exudates; roots; Salvia columbariae; Sandy loam; sandy loam soils; Sandy soils; Sessile drop method; Soil moisture; Soil properties; soil sampling; Soil Science & Conservation; Soil treatment; Soil water; soil water retention; Surface tension; surfactants; Viscosity; Wilting; Wilting point; Viscosity; Soil water retention; Root exudate; Seed exudate; Surface tension; Contact angle; Hysteresis

Aims Rhizodeposits collected from hydroponic solutions with roots of maize and barley, and seed mucilage washed from chia, were added to soil to measure their impact on water retention and hysteresis in a sandy loam soil at a range of concentrations. We test the hypothesis that the effect of plant e...