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Titolo:
3D architectural modelling of aerial photomorphogenesis in white clover (Trifolium repens L.) using L-systems
Autore:
Gautier, H; Mech, R; Prusinkiewicz, P; Varlet-Grancher, C;
Indirizzi:
INRA, Dept Environm & Agron, SEPF, F-86600 Lusignan, France INRA Lusignan France F-86600 onm & Agron, SEPF, F-86600 Lusignan, France INRA, Dept Environm & Agron, Unite Bioclimatol, F-84914 Avignon 9, France INRA Avignon France 9 gron, Unite Bioclimatol, F-84914 Avignon 9, France Univ Calgary, Dept Comp Sci, Calgary, AB T2N 1N4, Canada Univ Calgary Calgary AB Canada T2N 1N4 p Sci, Calgary, AB T2N 1N4, Canada SGI, Mt View, CA USA SGI Mt View CA USASGI, Mt View, CA USA
Titolo Testata:
ANNALS OF BOTANY
fascicolo: 3, volume: 85, anno: 2000,
pagine: 359 - 370
SICI:
0305-7364(200003)85:3<359:3AMOAP>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
LIGHT QUALITY; BLUE-LIGHT; RED RATIO; GROWTH; MORPHOGENESIS; ENVIRONMENT; PHOTOPERCEPTION; CANOPY; STOLON; LEAVES;
Keywords:
clover; Trifolium repens L; photomorphogenesis; plant architecture; L-system; modelling; Monte-Carlo method; competition for light; red : far-red ratio; irradiance; light quality; leaf size; self-shading;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
37
Recensione:
Indirizzi per estratti:
Indirizzo: Gautier, H INRA, Dept Environm & Agron, SEPF, F-86600 Lusignan, France INRA Lusignan France F-86600 , SEPF, F-86600 Lusignan, France
Citazione:
H. Gautier et al., "3D architectural modelling of aerial photomorphogenesis in white clover (Trifolium repens L.) using L-systems", ANN BOTANY, 85(3), 2000, pp. 359-370

Abstract

The objective of this work was to construct a model of aerial development of clover that takes into account morphogenetic responses to the light environment, and to use it to analyse and understand these processes in terms of signal perception and integration. The plant model was interfaced with a Monte Carlo model that determines photosynthetically active radiation (PAR)and red/far-red ratio (R/FR) throughout the canopy, taking into account the absorption, reflection and transmission of light by individual leaves. Light intensity and quality were sensed by the plant model at discrete time intervals and at discrete sites of perception: apices, emerging internodes and petiole tips. This input regulated the final size of internodes and leaves, the vertical positioning of leaves, and the branching delay. The empirical relations (regression functions) quantifying this regulation were derived from data reported in the literature and original measurements. Simulations produced realistic Visualizations and quantitative characterizations ofthe modelled plants for different light treatments. These results were in general agreement with observations of real plants growing under similar conditions, suggesting that the dependence of organ size and position on light treatments can be regarded as an integration of the responses of individual plant organs to their local light environment. The model is used to describe the regulation of branch appearance and the impact, of self-shading onplant morphogenesis as a function of local light environment. (C) 2000 Annals of Botany Company.

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Documento generato il 28/01/21 alle ore 06:50:43