Search Results - "WHALLEY, W. Richard"

The pore‐rhizosheath shapes maize root architecture by enhancing root distribution in macropores by Liu, Lingling, Qin, Shijie, Richard Whalley, W., Zhou, Hu, Ren, Tusheng, Gao, Weida

“…Pores and old root‐channels are preferentially used by roots to allow them to penetrate hard soils. However, there are few studies that have accounted for the…”
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Physical effects of soil drying on roots and crop growth by Whitmore, Andrew P, Whalley, W. Richard

“…The nature and effect of the stresses on root growth in crops subject to drying is reviewed. Drought is a complex stress, impacting on plant growth in a number…”
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Root phenotyping and root water uptake calculation using soil water contents measured in a winter wheat field by Huang, Zhongdong, Zhang, Xiaoxian, Ashton, Rhys W., Hawkesford, Malcom J., Richard Whalley, W.

“…Non-destructive phenotyping of roots and measurement of root water uptake from different soil layers in the field are vital for improving water management and…”
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Time‐lapse geophysical assessment of agricultural practices on soil moisture dynamics by Blanchy, Guillaume, Watts, Chris. W., Richards, Jake, Bussell, Jennifer, Huntenburg, Katharina, Sparkes, Debbie L., Stalham, Mark, Hawkesford, Malcolm J., Whalley, W. Richard, Binley, Andrew

“…Geophysical surveys are now commonly used in agriculture for mapping applications. High‐throughput collection of geophysical properties such as electrical…”
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Isotope fractionation factors controlling isotopocule signatures of soil-emitted N2O produced by denitrification processes of various rates by Lewicka-Szczebak, Dominika, Well, Reinhard, Bol, Roland, Gregory, Andrew S., Matthews, G. Peter, Misselbrook, Tom, Whalley, W. Richard, Cardenas, Laura M.

“…RATIONALE This study aimed (i) to determine the isotopic fractionation factors associated with N2O production and reduction during soil denitrification and…”
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Water supply and not nitrate concentration determines primary root growth in Arabidopsis by CHAPMAN, NICK, WHALLEY, W. RICHARD, LINDSEY, KEITH, MILLER, ANTHONY J

“…Understanding how root system architecture (RSA) adapts to changing nitrogen and water availability is important for improving acquisition. A sand rhizotron…”
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Improved Interpretation of Mercury Intrusion and Soil Water Retention Percolation Characteristics by Inverse Modelling and Void Cluster Analysis by Matthews, G. Peter, Levy, Charlotte L., Laudone, Giuliano M., Jones, Katie L., Ridgway, Cathy J., Hallin, Ingrid L., Gazze, S. Andrea, Francis, Lewis, Whalley, W. Richard, Schoelkopf, Joachim, Gane, Patrick A. C.

“…This work addresses two continuing fallacies in the interpretation of percolation characteristics of porous solids. The first is that the first derivative…”
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The role of plant species and soil condition in the structural development of the rhizosphere by Helliwell, Jon R., Sturrock, Craig J., Miller, Anthony J., Whalley, W. Richard, Mooney, Sacha J.

“…Roots naturally exert axial and radial pressures during growth, which alter the structural arrangement of soil at the root–soil interface. However, empirical…”
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gradual rather than abrupt increase in soil strength gives better root penetration of strong layers by Clark, Lawrence J, Ferraris, Stefano, Price, Adam H, Whalley, W. Richard

“…The purpose of this paper is to test the hypothesis that gradual rather than abrupt increases in strength lead to increased root penetration of strong layers…”
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A novel approach to estimate soil penetrometer resistance from water content, bulk density, and shear wave velocity: A laboratory study on a loamy sand soil by Zhang, Wencan, Gao, Weida, Ren, Tusheng, Richard Whalley, W.

“…•A simple model for penetrometer resistance is developed.•Input variables can be estimated from heat pulse and shear wave measurements.•Matric potential does…”
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Estimating Relative Hydraulic Conductivity from the Water Release Characteristic of a Shrinking Clay Soil by Gregory, Andrew S, Bird, Nigel R.A, Whalley, W. Richard, Matthews, G. Peter

“…To understand the hydraulic properties of soils, accurate prediction of the unsaturated hydraulic conductivity is needed, which is commonly derived from the…”
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Roots, water, and nutrient acquisition: let's get physical by Chapman, Nick, Miller, Anthony J, Lindsey, Keith, Whalley, W. Richard

“…Improved root water and nutrient acquisition can increase fertiliser use efficiency and is important for securing food production. Root nutrient acquisition…”
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Soil engineering in vivo: harnessing natural biogeochemical systems for sustainable, multi-functional engineering solutions by DeJong, Jason T., Soga, Kenichi, Banwart, Steven A., Whalley, W. Richard, Ginn, Timothy R., Nelson, Douglas C., Mortensen, Brina M., Martinez, Brian C., Barkouki, Tammer

“…Carbon sequestration, infrastructure rehabilitation, brownfields clean-up, hazardous waste disposal, water resources protection and global warming—these…”
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An overlooked mechanism underlying the attenuated temperature response of soil heterotrophic respiration by Zhang, Xiaoxian, Whalley, Peter A, Gregory, Andrew S, Whalley, W Richard, Coleman, Kevin, Neal, Andrew L, Mooney, Sacha J, Soga, Kenichi, Illangasekare, Tissa H

“…Biogeochemical reactions occurring in soil pore space underpin gaseous emissions measured at macroscopic scales but are difficult to quantify due to their…”
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Root water potential integrates discrete soil physical properties to influence ABA signalling during partial rootzone drying by Dodd, Ian C, Egea, Gregorio, Watts, Chris W, Whalley, W. Richard

“…To investigate the influence of different growing substrates (two mineral, two organic) on root xylem ABA concentration ([ABA]root) and the contribution of the…”
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effect of soil strength on the yield of wheat by Whalley, W. Richard, Watts, Chris W, Gregory, Andrew S, Mooney, Sacha J, Clark, Lawrence J, Whitmore, Andrew P

“…Although it is well-known that high soil strength is a constraint to root and shoot growth, it is not clear to what extent soil strength is the main physical…”
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A novel grass hybrid to reduce flood generation in temperate regions by Macleod, Christopher (Kit) J. A., Humphreys, Mike W., Whalley, W. Richard, Turner, Lesley, Binley, Andrew, Watts, Chris W., Skøt, Leif, Joynes, Adrian, Hawkins, Sarah, King, Ian P., O'Donovan, Sally, Haygarth, Phil M.

“…We report on the evaluation of a novel grass hybrid that provides efficient forage production and could help mitigate flooding. Perennial ryegrass ( Lolium…”
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Deformation and Shrinkage Effects on the Soil Water Release Characteristic by Gregory, Andrew S, Bird, Nigel R.A, Whalley, W. Richard, Matthews, G. Peter, Young, Iain M

“…The soil water release characteristic is controlled by the soil pores and so alteration of the pore system will have an effect. We sought to examine the…”
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Estimating soil strength in the rooting zone of wheat by Whitmore, Andrew Peter, Whalley, W. Richard, Bird, Nigel R. A, Watts, Christopher W, Gregory, Andrew S

“…When roots abstract water thus drying the soil, crop growth may be reduced by increasing strength of soil as well as the lack of water. Strong soil impedes…”
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Effects of soil compaction and irrigation on the concentrations of selenium and arsenic in wheat grains by ZHAO, Fang-Jie, LOPEZ-BELLIDO, F. Javier, GRAY, Colin W, WHALLEY, W. Richard, CLARK, Lawrence J, MCGRATH, Steve P

“…Arsenic is a known human carcinogen, whereas Se is essential to human health and human Se intake in some European countries has decreased in recent decades…”
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