Similarities and gradients in growth unit branching patterns during ontogeny in Fuji apple trees : a stochastic approach
This study aims to explore and model the changes in growth unit (GU) branching patterns during tree ontogeny. The question was addressed in apple trees cv. 'Fuji', by analysing the relative impact of GU length and within-tree position. The development of two 6-year-old trees was recorded over 6 years. The fate of axillary buds along each GU was represented as a sequence of symbols corresponding to five types of lateral growth: latent buds, short, medium, long, and floral lateral GUs. Based on an exploratory analysis of data and a priori hypotheses, a hidden semi-Markov chain was estimated from all of these GU sequences. This model was composed of six transient states representing successive branching zones along the GUs. The accuracy of this global model was a posteriori assessed by fitting the characteristic distributions computed from model parameters to the corresponding empirical characteristic distributions extracted from the observed sequences. The observed sequences were then grouped hierarchically according to the GU length, year of growth, and branching order. Comparing model parameters between these sub-groups revealed similarities between GUs. These similarities were based on particular branching zones whose composition and relative position within the GUs remained invariant across the subgroups: the la-tent zones, floral zone, and short-lateral zone. The probability of occurrence of the floral zone varied with the year, showing the alternate fruiting of 'Fuji'. It is shown that, during tree ontogeny, as GU length decreases, branching patterns tend to progressively simplify due to the disappearance of the most central zones and a progressive reduction in the length of the floral zone.
Main Authors: | , , , |
---|---|
Format: | article biblioteca |
Language: | eng |
Subjects: | F62 - Physiologie végétale - Croissance et développement, F50 - Anatomie et morphologie des plantes, U10 - Informatique, mathématiques et statistiques, arbre, croissance, ramification, développement biologique, Malus, modèle mathématique, http://aims.fao.org/aos/agrovoc/c_7887, http://aims.fao.org/aos/agrovoc/c_3394, http://aims.fao.org/aos/agrovoc/c_1057, http://aims.fao.org/aos/agrovoc/c_921, http://aims.fao.org/aos/agrovoc/c_4553, http://aims.fao.org/aos/agrovoc/c_24199, |
Online Access: | http://agritrop.cirad.fr/534846/ http://agritrop.cirad.fr/534846/1/document_534846.pdf |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
dig-cirad-fr-534846 |
---|---|
record_format |
koha |
spelling |
dig-cirad-fr-5348462024-01-28T14:53:13Z http://agritrop.cirad.fr/534846/ http://agritrop.cirad.fr/534846/ Similarities and gradients in growth unit branching patterns during ontogeny in Fuji apple trees : a stochastic approach. Renton Michael, Guédon Yann, Godin Christophe, Costes Evelyne. 2006. Journal of Experimental Botany, 57 (12) : 3131-3143.https://doi.org/10.1093/jxb/erl075 <https://doi.org/10.1093/jxb/erl075> Similarities and gradients in growth unit branching patterns during ontogeny in Fuji apple trees : a stochastic approach Renton, Michael Guédon, Yann Godin, Christophe Costes, Evelyne eng 2006 Journal of Experimental Botany F62 - Physiologie végétale - Croissance et développement F50 - Anatomie et morphologie des plantes U10 - Informatique, mathématiques et statistiques arbre croissance ramification développement biologique Malus modèle mathématique http://aims.fao.org/aos/agrovoc/c_7887 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_1057 http://aims.fao.org/aos/agrovoc/c_921 http://aims.fao.org/aos/agrovoc/c_4553 http://aims.fao.org/aos/agrovoc/c_24199 This study aims to explore and model the changes in growth unit (GU) branching patterns during tree ontogeny. The question was addressed in apple trees cv. 'Fuji', by analysing the relative impact of GU length and within-tree position. The development of two 6-year-old trees was recorded over 6 years. The fate of axillary buds along each GU was represented as a sequence of symbols corresponding to five types of lateral growth: latent buds, short, medium, long, and floral lateral GUs. Based on an exploratory analysis of data and a priori hypotheses, a hidden semi-Markov chain was estimated from all of these GU sequences. This model was composed of six transient states representing successive branching zones along the GUs. The accuracy of this global model was a posteriori assessed by fitting the characteristic distributions computed from model parameters to the corresponding empirical characteristic distributions extracted from the observed sequences. The observed sequences were then grouped hierarchically according to the GU length, year of growth, and branching order. Comparing model parameters between these sub-groups revealed similarities between GUs. These similarities were based on particular branching zones whose composition and relative position within the GUs remained invariant across the subgroups: the la-tent zones, floral zone, and short-lateral zone. The probability of occurrence of the floral zone varied with the year, showing the alternate fruiting of 'Fuji'. It is shown that, during tree ontogeny, as GU length decreases, branching patterns tend to progressively simplify due to the disappearance of the most central zones and a progressive reduction in the length of the floral zone. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/534846/1/document_534846.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1093/jxb/erl075 10.1093/jxb/erl075 info:eu-repo/semantics/altIdentifier/doi/10.1093/jxb/erl075 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1093/jxb/erl075 |
institution |
CIRAD FR |
collection |
DSpace |
country |
Francia |
countrycode |
FR |
component |
Bibliográfico |
access |
En linea |
databasecode |
dig-cirad-fr |
tag |
biblioteca |
region |
Europa del Oeste |
libraryname |
Biblioteca del CIRAD Francia |
language |
eng |
topic |
F62 - Physiologie végétale - Croissance et développement F50 - Anatomie et morphologie des plantes U10 - Informatique, mathématiques et statistiques arbre croissance ramification développement biologique Malus modèle mathématique http://aims.fao.org/aos/agrovoc/c_7887 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_1057 http://aims.fao.org/aos/agrovoc/c_921 http://aims.fao.org/aos/agrovoc/c_4553 http://aims.fao.org/aos/agrovoc/c_24199 F62 - Physiologie végétale - Croissance et développement F50 - Anatomie et morphologie des plantes U10 - Informatique, mathématiques et statistiques arbre croissance ramification développement biologique Malus modèle mathématique http://aims.fao.org/aos/agrovoc/c_7887 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_1057 http://aims.fao.org/aos/agrovoc/c_921 http://aims.fao.org/aos/agrovoc/c_4553 http://aims.fao.org/aos/agrovoc/c_24199 |
spellingShingle |
F62 - Physiologie végétale - Croissance et développement F50 - Anatomie et morphologie des plantes U10 - Informatique, mathématiques et statistiques arbre croissance ramification développement biologique Malus modèle mathématique http://aims.fao.org/aos/agrovoc/c_7887 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_1057 http://aims.fao.org/aos/agrovoc/c_921 http://aims.fao.org/aos/agrovoc/c_4553 http://aims.fao.org/aos/agrovoc/c_24199 F62 - Physiologie végétale - Croissance et développement F50 - Anatomie et morphologie des plantes U10 - Informatique, mathématiques et statistiques arbre croissance ramification développement biologique Malus modèle mathématique http://aims.fao.org/aos/agrovoc/c_7887 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_1057 http://aims.fao.org/aos/agrovoc/c_921 http://aims.fao.org/aos/agrovoc/c_4553 http://aims.fao.org/aos/agrovoc/c_24199 Renton, Michael Guédon, Yann Godin, Christophe Costes, Evelyne Similarities and gradients in growth unit branching patterns during ontogeny in Fuji apple trees : a stochastic approach |
description |
This study aims to explore and model the changes in growth unit (GU) branching patterns during tree ontogeny. The question was addressed in apple trees cv. 'Fuji', by analysing the relative impact of GU length and within-tree position. The development of two 6-year-old trees was recorded over 6 years. The fate of axillary buds along each GU was represented as a sequence of symbols corresponding to five types of lateral growth: latent buds, short, medium, long, and floral lateral GUs. Based on an exploratory analysis of data and a priori hypotheses, a hidden semi-Markov chain was estimated from all of these GU sequences. This model was composed of six transient states representing successive branching zones along the GUs. The accuracy of this global model was a posteriori assessed by fitting the characteristic distributions computed from model parameters to the corresponding empirical characteristic distributions extracted from the observed sequences. The observed sequences were then grouped hierarchically according to the GU length, year of growth, and branching order. Comparing model parameters between these sub-groups revealed similarities between GUs. These similarities were based on particular branching zones whose composition and relative position within the GUs remained invariant across the subgroups: the la-tent zones, floral zone, and short-lateral zone. The probability of occurrence of the floral zone varied with the year, showing the alternate fruiting of 'Fuji'. It is shown that, during tree ontogeny, as GU length decreases, branching patterns tend to progressively simplify due to the disappearance of the most central zones and a progressive reduction in the length of the floral zone. |
format |
article |
topic_facet |
F62 - Physiologie végétale - Croissance et développement F50 - Anatomie et morphologie des plantes U10 - Informatique, mathématiques et statistiques arbre croissance ramification développement biologique Malus modèle mathématique http://aims.fao.org/aos/agrovoc/c_7887 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_1057 http://aims.fao.org/aos/agrovoc/c_921 http://aims.fao.org/aos/agrovoc/c_4553 http://aims.fao.org/aos/agrovoc/c_24199 |
author |
Renton, Michael Guédon, Yann Godin, Christophe Costes, Evelyne |
author_facet |
Renton, Michael Guédon, Yann Godin, Christophe Costes, Evelyne |
author_sort |
Renton, Michael |
title |
Similarities and gradients in growth unit branching patterns during ontogeny in Fuji apple trees : a stochastic approach |
title_short |
Similarities and gradients in growth unit branching patterns during ontogeny in Fuji apple trees : a stochastic approach |
title_full |
Similarities and gradients in growth unit branching patterns during ontogeny in Fuji apple trees : a stochastic approach |
title_fullStr |
Similarities and gradients in growth unit branching patterns during ontogeny in Fuji apple trees : a stochastic approach |
title_full_unstemmed |
Similarities and gradients in growth unit branching patterns during ontogeny in Fuji apple trees : a stochastic approach |
title_sort |
similarities and gradients in growth unit branching patterns during ontogeny in fuji apple trees : a stochastic approach |
url |
http://agritrop.cirad.fr/534846/ http://agritrop.cirad.fr/534846/1/document_534846.pdf |
work_keys_str_mv |
AT rentonmichael similaritiesandgradientsingrowthunitbranchingpatternsduringontogenyinfujiappletreesastochasticapproach AT guedonyann similaritiesandgradientsingrowthunitbranchingpatternsduringontogenyinfujiappletreesastochasticapproach AT godinchristophe similaritiesandgradientsingrowthunitbranchingpatternsduringontogenyinfujiappletreesastochasticapproach AT costesevelyne similaritiesandgradientsingrowthunitbranchingpatternsduringontogenyinfujiappletreesastochasticapproach |
_version_ |
1792496561981227008 |