A Method for Analysing Plant Architecture as it Relates to Fruit Quality Using Three-dimensional Computer Graphics

Smith, G. S.; Curtis, J.P.; Edwards, C. M.

doi:10.1093/oxfordjournals.aob.a088468

Cited by 42 publications

(12 citation statements)

References 11 publications

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“…Our methodology makes it possible to compute light interception readily because it does not require the arduous characterization of both tree canopy geometry and structure (Nilson 1992;Smith, Curtis & Edwards 1992;Genard & Baret 1994). While the scanner device was used for the estimation of single-tree light interception, its use could be extended to nearly every broadleaf and coniferous canopy for a wide range of spatial scales.…”

Section: Canopy Light Interceptionmentioning

confidence: 99%

Ground monitoring the light–shadow windows of a tree canopy to yield canopy light interception and morphological traits

Giuliani

Magnanini

Fragassa

et al. 2000

Plant Cell & Environment

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Monitoring the light-shadow windows of a tree via a grid system on the ground was performed on sunny summer days at high spatial resolution using a custom-built, inexpensive scanner. The measurements were taken with two goals: (1) to quickly and remotely quantify the overall, short-wave solar radiation (300-1100 nm) intercepted by the tree canopy, and (2) to yield such crown geometric traits as shape, size and the number of theoretical canopy leaf layers (leaf layer index, LLI) in relation to the section orthogonal to sunbeam direction (sun window). The ground readings at each measurement over the day were used to project a digitized shadow image. Image processing was applied and the intercepted radiation was calculated as the difference from the corresponding incoming radiation above the canopy. Tree-crown size and shape were profiled via computer imaging by analysing the different shadow images acquired at the various solar positions during the day. It is notable that these combined images yielded the crown features without having to parameterize such canopy characteristics as foliage extension and spatial distribution.

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Section: Canopy Light Interceptionmentioning

confidence: 99%

Ground monitoring the light–shadow windows of a tree canopy to yield canopy light interception and morphological traits

Giuliani

Magnanini

Fragassa

et al. 2000

Plant Cell & Environment

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show abstract

“…Amongst attempts to develop alternative recording methods, promising progress has been made using electromagnetic field, scanning or infrared devices to map tree-like structures (Smith et al, 1992;Sinoquet & Rivet, 1997;Cannon et al, 1999). Ideally, the information contained in a topological record should be processed into a single number, an architectural parameter, with minimal loss of architectural information (Thornley & Johnson, 1990;Godin et al, 1999;Guedon et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Development of a Mathematical Method for Classifying and Comparing Tree Architecture Using Parameters from a Topological Model of a Trifurcating Botanical Tree

Sismilich

Menzies

Gandar

et al. 2003

Journal of Theoretical Biology

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“…Similar meanings are used in several other fields of plant research, e.g. hydraulics [123,132], plant growth modelling [36], plant measurement [112,115], and in carbon partitioning [88].…”

Section: Introductionmentioning

confidence: 99%

Representing and encoding plant architecture: A review

2000

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-A plant is made up of components of various types and shapes. The geometrical and topological organisation of these components defines the plant architecture. Before the early 1970's, botanical drawings were the only means to represent plant architecture. In the past two decades, high-performance computers have become available for plant growth analysis and simulation, triggering the development of various formal representations and notations of plant architecture (strings of characters, axial trees, tree graphs, multiscale graphs, linked lists of records, object-oriented representations, matrices, fractals, sets of digitised points, etc.). In this paper, we review the main representations of plant architecture and make explicit their common structure and discrepancies. The apparent heterogeneity of these representations makes it difficult to collect plant architecture information in a generic format to allow multiple uses. However, the collection of plant architecture data is an increasingly important issue, which is also particularly time-consuming. At the end of this review, we suggest that a task of primary importance for the plant-modelling community is to define common data formats and tools in order to create standard plant architecture database systems that may be shared by research teams. plant architecture / geometry / topology / scales of representation / encoding Résumé -Représentation et codage de l'architecture des plantes. Une plante est constituée d'entités ayant des types et des formes variés. L'organisation géométrique et topologique de ses entités définit « l'architecture de la plante ». Avant le début des années 70, la seule façon de représenter l'architecture des plantes était de faire des dessins botaniques précis. Dans les deux dernières décennies, l'utilisation d'ordinateurs de plus en plus puissants a permis de concevoir des modèles de simulation de croissance de plante capables de produire des architectures détaillées et de les visualiser. Ceci a favorisé l'émergence d'un ensemble varié de méthodes de repré-sentation de l'architecture des plantes (chaines de caractères, « axial trees », graphes arborescents, graphes multi-échelles, listes chaî-nées, représentations objet, matrices, fractales, ensemble de points digitalisés, etc.). Dans ce papier, nous passons en revue les principales représentations de l'architecture des plantes, en insistant sur leurs spécificités, mais aussi sur leurs points communs. L'hété-rogénéïté apparente de ces représentations rend la collecte des informations décrivant l'architecture des plantes difficilement réutili-sable. Toutefois, la mesure de « données architecturales » est un élément d'une importance capitale dans la conception de modèles structure/fonction. C'est aussi une tâche particulièrement longue et fastidieuse. C'est pourquoi nous suggérons à l'issue de cette revue, qu'une action de première importance à mener dans la communauté de modélisation est de définir des formats de données et des outils communs pour créer des bases de données ar...

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A Method for Analysing Plant Architecture as it Relates to Fruit Quality Using Three-dimensional Computer Graphics

Cited by 42 publications

References 11 publications

Ground monitoring the light–shadow windows of a tree canopy to yield canopy light interception and morphological traits

Ground monitoring the light–shadow windows of a tree canopy to yield canopy light interception and morphological traits

Development of a Mathematical Method for Classifying and Comparing Tree Architecture Using Parameters from a Topological Model of a Trifurcating Botanical Tree

Representing and encoding plant architecture: A review

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