HOME >> BIOLOGY >> NEWS
How to use math and a CT scanner to see how trees intercept light

What do trees and statistics have in common? Pierre Dutilleul, a statistician and professor in McGill's Department of Plant Science (Montreal, Canada), will tell you that many natural systems can be better understood using equations and models, provided appropriate data are collected.

Dutilleul is one of the first scientists who have used a computed tomography (CT) scanner to study how tree branching affects light interception. "We collect CT scan data, which basically measures of density in 3D, to quantify the complexity of plant branching patterns," he explains. "This will lead to a more complete and accurate model providing a better understanding of why some plants perform better in given light environments. This is important because in the long run, it means less fertilizer application and less greenhouse gas in the atmosphere through enhanced photosynthesis".

Dutilleul and his group are using CT scan data to create 3-D images of plant canopies. After scanning a plant, such as a young cedar, a computer converts the CT scan data into a digital 3-D model. As leaves and branches yield different CT scan data, the leaves can be removed from the digital model. The resulting skeletal images give more detailed and accurate information than the traditional methods of plant characterization. This information can then be used to estimate the amount of light intercepted by the plant.

"Our system and our models will allow us to predict which branching patterns are more efficient at capturing light," said Dutilleul. "This is of obvious importance when choosing which plants to grow in environments with short photoperiod."

Dutilleul has developed links between statistics and life sciences throughout his career. His research in applied statistics at McGill incorporates both temporal (in time) and spatial (in space) components. He applies his statistical methods to agricultural, biological and environmental sciences. As an example, he is curren
'"/>

Contact: Christine Zeindler
christine.zeindler@mcgill.ca
514-398-6754
McGill University
14-Oct-2004


Page: 1 2

Related biology news :

1. Plastic that grows on trees
2. Human ancestors learned to walk upright in the trees, say experts
3. Lessons from the orangutans: Upright walking may have begun in the trees
4. Seeing the trees for the forest: WHRC scientists creating national biomass and carbon dataset
5. Mystery of fossilized trees is solved
6. How trees manage water in arid environments
7. Squirrels winning at outwitting trees survival strategy
8. Software, evolution and micro-inversions -- improving the building of phylogenetic trees
9. Frankincense trees overexploited for Christmas scent
10. A chilling solution: Measuring below-ground carbon without destroying trees
11. Mode of seed dispersal greatly shapes placement of rainforest trees

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: How use math and scanner see how trees intercept light

(Date:7/24/2014)... decreased by 45% on average over a 35 year ... study on the impact of humans on declining animal ... invertebrates such as insects, spiders, crustaceans, slugs and worms ... control for crops, decomposition for nutrient cycling, water filtration ... Science and led by UCL, Stanford and UCSB, ...
(Date:7/24/2014)... sticky research out of York University shows a surprisingly ... toxic grass fungus: moose saliva (yes moose saliva). ... "Ungulate saliva inhibits a grassendophyte mutualism" shows that moose ... (which hosts a fungus called epichlo festucae that produces ... less toxicity. , "Plants have evolved defense mechanisms to ...
(Date:7/24/2014)... counterparts in humans, affect the connections between nerve cells ... hippocampus, an area of the brain that plays a ... memories. The results of the study have been published ... depends on the active communication between nerve cells, known ... into a dense network where they constantly relay signals ...
Breaking Biology News(10 mins):Invertebrate numbers nearly halve as human population doubles 2Invertebrate numbers nearly halve as human population doubles 3Moose drool inhibits growth of toxic fungus: York U research 2A protein couple controls flow of information into the brain's memory center 2A protein couple controls flow of information into the brain's memory center 3A protein couple controls flow of information into the brain's memory center 4
(Date:7/24/2014)... 24, 2014  Spherix Incorporated (SPEX) -- an intellectual ... of intellectual property, today announced that the Company will ... 30, 2014 on Monday, August 18, 2014 for shareholders. ... ET on Monday, August 18, 2014 to discuss the ... company,s CEO, Anthony Hayes . Following ...
(Date:7/24/2014)... 24, 2014 The patent provides ... diagnostic test results. It also enables true sample ... validation and reporting of high profile assays such ... a rapidly growing area of biotechnology that includes ... cancer, and companion diagnostics in personalized medicine. The ...
(Date:7/23/2014)... RICHMOND, Calif., July 23, 2014  Sangamo BioSciences, Inc. ... quarter 2014 financial results and accomplishments. ... reported a consolidated net loss of $7.0 million, or ... $5.5 million, or $0.10 per share, for the same ... Company had cash, cash equivalents, marketable securities and interest ...
(Date:7/23/2014)... the Vienna University of Technology and the Maria ... perfect semiconductor crystals into a silicon nanowire. With ... fast and multi-functional processing units can be accommodated ... research results will be published in the journal ... the cornerstone of future chip technology, but the ...
Breaking Biology Technology:Spherix Schedules Shareholder Update Call 2New DNA-barcode Patent Virtually Eliminates False Test Results and Sample Mix-up 2Sangamo BioSciences Reports Second Quarter 2014 Financial Results 2Sangamo BioSciences Reports Second Quarter 2014 Financial Results 3Sangamo BioSciences Reports Second Quarter 2014 Financial Results 4Sangamo BioSciences Reports Second Quarter 2014 Financial Results 5Sangamo BioSciences Reports Second Quarter 2014 Financial Results 6Sangamo BioSciences Reports Second Quarter 2014 Financial Results 7Sangamo BioSciences Reports Second Quarter 2014 Financial Results 8Sangamo BioSciences Reports Second Quarter 2014 Financial Results 9A crystal wedding in the nanocosmos 2
Cached News: