Navigation Links
US Air Force technology helps scientists understand plant root function
Date:9/8/2008

MADISON, WI SEPTEMBER 8, 2008-- The McClellan Nuclear Radiation Center (MNRC) in Sacramento, CA was developed by the U.S. Air Force to detect corrosion and defects in aircraft structure using an imaging technique called neutron radiography. This technique is currently helping soil scientists understand the function of plant roots and their uptake of water and nutrients.

Scientists at the University of California in Davis present results from a newly developed non-invasive technique that uses thermal neutron attenuation to measure spatial and temporal distribution of water in soils and near roots at near 0.5 mm spatial resolution or higher.

The study, published in the September-October 2008 issue of Soil Science Society of America Journal, presents the theory and potential applications of thermal neutron tomography and evaluates its sensitivity, with particular attention to using this technique for the measurement of small-scale spatial and temporal variations in root water uptake. A single root water uptake experiment with a corn (Zea mays L.) seedling demonstrated the successful application of neutron computed tomography (NCT), with images showing spatially variable soil water content gradients in the rhizosphere and bulk soil.

Unlike traditional methods for studying root systems, which are destructive, tedious, and difficult to interpret, neutron tomography is a non-invasive imaging method that measures the attenuation of thermal neutrons, much like photons in x- and gamma-ray techniques, to characterize material composition. Although NCT techniques are routinely used in engineering, relatively little is known about their application to soils. Neutron imaging works especially well for substances that contain hydrogen atoms such as water, or other low atomic mass, neutron attenuating materials. The neutron source in this study was a Mark II TRIGA Reactor at McClellan Nuclear Radiation Center (MNRC) in Sacramento, CA. The reactor, which began operation in 1990, is the newest research reactor in the United States. It is also the highest power TRIGATM (Training, Research, and Isotope Production General Atomic) reactor in the United States.


'/>"/>

Contact: Sara Uttech
suttech@soils.org
608-268-4948
Soil Science Society of America
Source:Eurekalert

Related biology news :

1. Regional Law Enforcement Data Exchange System Expands
2. Ohio Law Enforcement Agency Deploys BIO-key(R) Mobile Reporting Software
3. Wearable Sensors Conceived at Harvard Robotics Lab Measure Hand Forces
4. VIB and Bayer join forces for plant research
5. Coastal management cooperation, enforcement key to avoid pending crisis for millions: UN experts
6. Coastal management cooperation, enforcement key to avoid pending crisis for millions: U.N. experts
7. BIO-key(R) Awarded Mobile Data Contract for Additional 10 Kentucky Law Enforcement Agencies
8. Wireless Public Safety Solution From BIO-key(R) and DaProSystems Links Virginia Law Enforcement Agencies
9. US Army, US Navy, US Air Force, US Marines, US Department of Defense conference held at UH
10. Springer and the New York Botanical Garden Press join forces to publish botanical journals
11. New technique reveals subtle force-induced changes in biomolecules conformation
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/28/2016)... First quarter 2016:   , Revenues amounted to ... of 2015 The gross margin was 49% (27) ... operating margin was 40% (-13) Earnings per share rose ... was SEK 249.9 M (21.2) , Outlook   ... The operating margin for 2016 is estimated to exceed ...
(Date:4/19/2016)... UAE, April 20, 2016 The ... as a compact web-based "all-in-one" system solution for all ... fingerprint reader or the door interface with integration authorization ... access control systems. The minimal dimensions of the access ... into the building installations offer considerable freedom of design ...
(Date:4/14/2016)... , April 14, 2016 ... and Malware Detection, today announced the appointment of ... the new role. Goldwerger,s leadership appointment comes ... the heels of the deployment of its platform at ... behavioral biometric technology, which discerns unique cognitive and physiological ...
Breaking Biology News(10 mins):
(Date:5/25/2016)... ... 2016 , ... The American Medical Informatics Association (AMIA) responded ... Coordinator for Health IT (ONC) outlining a measurement approach to interoperability that focuses ... and where it was needed. The organization of health informatics professionals said a ...
(Date:5/25/2016)... ... May 25, 2016 , ... Biohaven Pharmaceutical Holding Company Ltd. ... the company’s orphan drug designation request covering BHV-4157 for the treatment of Spinocerebellar ... FDA. , Spinocerebellar ataxia is a rare, debilitating neurodegenerative disorder that is ...
(Date:5/24/2016)... (PRWEB) , ... May 24, 2016 , ... ... a newly re-branded identity. The new Media Cybernetics corporate branding reflects a results-driven ... of imaging and image analysis. The re-branding components include a crisp, refreshed logo ...
(Date:5/23/2016)... , May 23, 2016 Oxitec CEO ... th at 10:15 a.m. ET before the United States ... genetically engineered mosquitos can play in controlling the spread of ... the Zika virus.      (Logo: http://photos.prnewswire.com/prnh/20150630/227348 ... mosquito with a self-limiting gene. Trials in Brazil ...
Breaking Biology Technology: