caa a22 4500 606218440 CHVBK 20210128101112.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s11104-014-2281-8 doi (NATIONALLICENCE)springer-10.1007/s11104-014-2281-8 The effect of natural seed coatings of Capsella bursa - pastoris L. Medik. (shepherd's purse) on soil-water retention, stability and hydraulic conductivity [Elektronische Daten] [Wenni Deng, Paul Hallett, Dong-Sheng Jeng, Geoffrey Squire, Peter Toorop, Pietro Iannetta] Backgrouand and aim: Myxospermous seeds become bound by mucilage upon hydration and this trait is ecologically important. Major impacts could be enhancing seed-soil contact and improving water retention, which we quantify in this study. Methods: Myxospermous or demucilaged seeds of Capsella bursa-pastoris L. Medik. (shepherd's purse) were added to a test sandy clay loam at seed : soil densities of 5 and 10% [w/w]. The soil water retention and hydraulic conductivity were assessed. Soil rheology was also assessed using extracted mucilage only amendment at 0.5 and 1% [w/w]. Results: Shepherd's purse seeds increased soil water retention and reduced soil hydraulic conductivity for myxospermous and demucilaged seeds. Soil rheological properties (complex shear modulus, viscosity and yield stress) increased in response to seed mucilage addition, and became more pronounced as soil dried. The mucilage had greatest impact on the yield stress compared to the other rheology parameters. Conclusions: The densities of myxospermous and non-myxospermous seeds, and mucilage tested here reflect that may be found naturally in soil seedbanks. The findings provide the first evidence that the soil seedbank provided from a wild arable species may regulate the soil water retention and enhance soil stability, and that this capacity is greater for myxospermous seeds. Springer International Publishing Switzerland, 2014 Myxospermous nationallicence Capsella bursa - pastoris L. Medik. (shepherd's purse) nationallicence Soil water retention nationallicence Soil hydraulic conductivity nationallicence Soil rheology nationallicence LVR : linear viscoelastic region nationallicence Deng Wenni School of Civil Engineering, Southeast University, 210096, Nanjing, China aut Hallett Paul Institute of Biological and Environmental Sciences, University of Aberdeen, AB24 3UU, Aberdeen, UK aut Jeng Dong-Sheng School of Engineering, Griffith University, QLD 4222, Gold Coast, Australia aut Squire Geoffrey The James Hutton Institute, DD2 5DA, Dundee, Invergowrie, UK aut Toorop Peter Seed Conservation Department, Royal Botanic Gardens, Kew, Wakehurst Place, Ardingly, RH17 6TN, West Sussex, UK aut Iannetta Pietro The James Hutton Institute, DD2 5DA, Dundee, Invergowrie, UK aut Plant and Soil Springer International Publishing 387/1-2(2015-02-01), 167-176 0032-079X 387:1-2<167 2015 387 11104 https://doi.org/10.1007/s11104-014-2281-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-014-2281-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Deng Wenni School of Civil Engineering, Southeast University, 210096, Nanjing, China aut NATIONALLICENCE 700 1- Hallett Paul Institute of Biological and Environmental Sciences, University of Aberdeen, AB24 3UU, Aberdeen, UK aut NATIONALLICENCE 700 1- Jeng Dong-Sheng School of Engineering, Griffith University, QLD 4222, Gold Coast, Australia aut NATIONALLICENCE 700 1- Squire Geoffrey The James Hutton Institute, DD2 5DA, Dundee, Invergowrie, UK aut NATIONALLICENCE 700 1- Toorop Peter Seed Conservation Department, Royal Botanic Gardens, Kew, Wakehurst Place, Ardingly, RH17 6TN, West Sussex, UK aut NATIONALLICENCE 700 1- Iannetta Pietro The James Hutton Institute, DD2 5DA, Dundee, Invergowrie, UK aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 387/1-2(2015-02-01), 167-176 0032-079X 387:1-2<167 2015 387 11104