Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

X-Ray For Grain

21.02.2003


Researchers from St. Petersburg have invented a way to check the viability of grains and seeds of agricultural plants without prior germination. The scientists assume that injuries of the germ and tissues of seeds can be revealed through X-ray photomicrography with the help of computer recognition system. This methodology allows determining the quality of wheat, barley, oats, rye and other crops seed grain.



The yield of agricultural cultures depends on viability and quality of seed grain. Researchers from the Agrophysical Research Institute, Russian Agricultural Academy (St. Petersburg) M.V. Arkhipov, L.P. Gusakova and D. I. Alekseyeva have developed a computer system to reveal nonviable and defective grains and seeds without prior germination.

The X-rays photograph is taken of seeds or grain. The photographs show the breaks of integrity of the corn seed storage tissue and defects of the germ. They can be caused by different reasons - mechanical load while transporting and storage, bacterial or mycosis infection, or vermin. The seeds often perish because of losing the germ - the germ can be knocked out in harvesting or can be eaten out by insects. The researchers have made reference images of each defect to compare X-ray photographs of the seeds with them.


X-ray photographs are made in the following way: the seeds are stuck to the transparent polymeric plate, an ordinary photographic film pack being placed directly under it. The X-ray generator is switched on and then the film is developed. X-ray microscope equipped with a digital camera can be used instead of photographic film. The pictures make the peculiarities of seed anatomic structure clearly visible, these peculiarities help to make conclusion on the extent of germinating capacity or infectiousness.

The researchers have compiled a digital library containing reference images of grains of wheat, barley, rye, oats, rice, and seeds of sunflower, tomatoes, cucumbers, dill and cotton-plant. The library helps to discern grains and seeds defects and plants diseases. Discernment is carried out in automatic mode, for this purpose the researchers have developed SEAN computer system. The system compares graphical images of examined seeds with the reference samples stored in the computer memory. If required, the operator can correct the diagnosis made in automatic mode. According to Mikhail Arkhipov (Doctor of Biology), project manager, the system will soon enable assorting the seeds in fully automatic mode and immediate discarding of infected or defective ones. The researchers of the Agrophysical Research Institute have already developed the prototype of this device.

Ruben Iskandarian | Informnauka

More articles from Agricultural and Forestry Science:

nachricht New 3-D model predicts best planting practices for farmers
26.06.2017 | Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign

nachricht Fighting a destructive crop disease with mathematics
21.06.2017 | University of Cambridge

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Study shines light on brain cells that coordinate movement

26.06.2017 | Life Sciences

Smooth propagation of spin waves using gold

26.06.2017 | Physics and Astronomy

Switchable DNA mini-machines store information

26.06.2017 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>