Phenotyping the response of an apple tree hybrid population to soil water constraint under field conditions: new insights brought by high resolution imaging
The genetic variability of apple tree response to drought is scarcely known because characterization of response to water constraint is usually low-throughput, which limits the possibility to take this trait into account in breeding programmes. In this research phenotypic response of apple tree scion hybrids of a 'Starkrimson' × 'Granny Smith' adult population to soil drought was considered through the leaf temperature as a proxy for transpiration, each tree being grafted onto the same rootstock genotype. The experiment was located in an experimental orchard where trees were submitted to contrasting summer irrigation treatments. The use of airborne multispectral images (in reflective and thermal infrared spectral domains) was explored as a possible approach to evaluate the hybrids' behavior in orchard conditions. Emphasis was put on the leaf transpiration status which was approached by measuring foliage temperature in thermal infrared (TIR) and by calculation of the Water Deficit Index (WDI). Here we proposed to calculate the WDI at tree scale, to overcome limitations of TIR interpretation for non-covering vegetation by taking the crop cover fraction into account. This was performed through the calculation of the Normalized Difference Vegetation Index (NDVI). Our results highlight capacity of thermal imaging for phenotyping water stress. Spatial resolution of TIR images needs to be improved in order to refine the phenotyping data and specific image treatment is required to extract relevant leaf thermal information which can allow for effective differentiation of hybrids' behavior in response to soil water constraint. Remote sensing thus appears promising for phenotyping varietal response of apple tree to soil drought at adult stage in field conditions.
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dig-cirad-fr-5681672021-01-04T12:18:56Z http://agritrop.cirad.fr/568167/ http://agritrop.cirad.fr/568167/ Phenotyping the response of an apple tree hybrid population to soil water constraint under field conditions: new insights brought by high resolution imaging. Virlet Nicolas, Lebourgeois Valentine, Martinez Sébastien, Labbé Sylvain, Costes Evelyne, Regnard Jean-Luc. 2015. In : Proceedings of the Second International symposium on horticulture, Angers, France, July 01-05, 2012. Mauget Jean-Claude (ed.), Godet Stéphanie (ed.). Louvain : ISHS, 879-886. (Acta Horticulturae, 1099) ISBN 978-94-6261-096-5 International Symposium on Horticulture in Europe - SHE 2012. 2, Angers, France, 1 Juillet 2012/5 Juillet 2012.https://doi.org/10.17660/ActaHortic.2015.1099.112 <https://doi.org/10.17660/ActaHortic.2015.1099.112> Researchers Phenotyping the response of an apple tree hybrid population to soil water constraint under field conditions: new insights brought by high resolution imaging Virlet, Nicolas Lebourgeois, Valentine Martinez, Sébastien Labbé, Sylvain Costes, Evelyne Regnard, Jean-Luc eng 2015 ISHS Proceedings of the Second International symposium on horticulture, Angers, France, July 01-05, 2012 U30 - Méthodes de recherche F30 - Génétique et amélioration des plantes H50 - Troubles divers des plantes The genetic variability of apple tree response to drought is scarcely known because characterization of response to water constraint is usually low-throughput, which limits the possibility to take this trait into account in breeding programmes. In this research phenotypic response of apple tree scion hybrids of a 'Starkrimson' × 'Granny Smith' adult population to soil drought was considered through the leaf temperature as a proxy for transpiration, each tree being grafted onto the same rootstock genotype. The experiment was located in an experimental orchard where trees were submitted to contrasting summer irrigation treatments. The use of airborne multispectral images (in reflective and thermal infrared spectral domains) was explored as a possible approach to evaluate the hybrids' behavior in orchard conditions. Emphasis was put on the leaf transpiration status which was approached by measuring foliage temperature in thermal infrared (TIR) and by calculation of the Water Deficit Index (WDI). Here we proposed to calculate the WDI at tree scale, to overcome limitations of TIR interpretation for non-covering vegetation by taking the crop cover fraction into account. This was performed through the calculation of the Normalized Difference Vegetation Index (NDVI). Our results highlight capacity of thermal imaging for phenotyping water stress. Spatial resolution of TIR images needs to be improved in order to refine the phenotyping data and specific image treatment is required to extract relevant leaf thermal information which can allow for effective differentiation of hybrids' behavior in response to soil water constraint. Remote sensing thus appears promising for phenotyping varietal response of apple tree to soil drought at adult stage in field conditions. conference_item info:eu-repo/semantics/conferenceObject Conference info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/568167/1/document_568167.pdf application/pdf Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.17660/ActaHortic.2015.1099.112 10.17660/ActaHortic.2015.1099.112 https://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=218682 info:eu-repo/semantics/altIdentifier/doi/10.17660/ActaHortic.2015.1099.112 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.17660/ActaHortic.2015.1099.112 |
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U30 - Méthodes de recherche F30 - Génétique et amélioration des plantes H50 - Troubles divers des plantes U30 - Méthodes de recherche F30 - Génétique et amélioration des plantes H50 - Troubles divers des plantes |
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U30 - Méthodes de recherche F30 - Génétique et amélioration des plantes H50 - Troubles divers des plantes U30 - Méthodes de recherche F30 - Génétique et amélioration des plantes H50 - Troubles divers des plantes Virlet, Nicolas Lebourgeois, Valentine Martinez, Sébastien Labbé, Sylvain Costes, Evelyne Regnard, Jean-Luc Phenotyping the response of an apple tree hybrid population to soil water constraint under field conditions: new insights brought by high resolution imaging |
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The genetic variability of apple tree response to drought is scarcely known because characterization of response to water constraint is usually low-throughput, which limits the possibility to take this trait into account in breeding programmes. In this research phenotypic response of apple tree scion hybrids of a 'Starkrimson' × 'Granny Smith' adult population to soil drought was considered through the leaf temperature as a proxy for transpiration, each tree being grafted onto the same rootstock genotype. The experiment was located in an experimental orchard where trees were submitted to contrasting summer irrigation treatments. The use of airborne multispectral images (in reflective and thermal infrared spectral domains) was explored as a possible approach to evaluate the hybrids' behavior in orchard conditions. Emphasis was put on the leaf transpiration status which was approached by measuring foliage temperature in thermal infrared (TIR) and by calculation of the Water Deficit Index (WDI). Here we proposed to calculate the WDI at tree scale, to overcome limitations of TIR interpretation for non-covering vegetation by taking the crop cover fraction into account. This was performed through the calculation of the Normalized Difference Vegetation Index (NDVI). Our results highlight capacity of thermal imaging for phenotyping water stress. Spatial resolution of TIR images needs to be improved in order to refine the phenotyping data and specific image treatment is required to extract relevant leaf thermal information which can allow for effective differentiation of hybrids' behavior in response to soil water constraint. Remote sensing thus appears promising for phenotyping varietal response of apple tree to soil drought at adult stage in field conditions. |
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conference_item |
topic_facet |
U30 - Méthodes de recherche F30 - Génétique et amélioration des plantes H50 - Troubles divers des plantes |
author |
Virlet, Nicolas Lebourgeois, Valentine Martinez, Sébastien Labbé, Sylvain Costes, Evelyne Regnard, Jean-Luc |
author_facet |
Virlet, Nicolas Lebourgeois, Valentine Martinez, Sébastien Labbé, Sylvain Costes, Evelyne Regnard, Jean-Luc |
author_sort |
Virlet, Nicolas |
title |
Phenotyping the response of an apple tree hybrid population to soil water constraint under field conditions: new insights brought by high resolution imaging |
title_short |
Phenotyping the response of an apple tree hybrid population to soil water constraint under field conditions: new insights brought by high resolution imaging |
title_full |
Phenotyping the response of an apple tree hybrid population to soil water constraint under field conditions: new insights brought by high resolution imaging |
title_fullStr |
Phenotyping the response of an apple tree hybrid population to soil water constraint under field conditions: new insights brought by high resolution imaging |
title_full_unstemmed |
Phenotyping the response of an apple tree hybrid population to soil water constraint under field conditions: new insights brought by high resolution imaging |
title_sort |
phenotyping the response of an apple tree hybrid population to soil water constraint under field conditions: new insights brought by high resolution imaging |
publisher |
ISHS |
url |
http://agritrop.cirad.fr/568167/ http://agritrop.cirad.fr/568167/1/document_568167.pdf |
work_keys_str_mv |
AT virletnicolas phenotypingtheresponseofanappletreehybridpopulationtosoilwaterconstraintunderfieldconditionsnewinsightsbroughtbyhighresolutionimaging AT lebourgeoisvalentine phenotypingtheresponseofanappletreehybridpopulationtosoilwaterconstraintunderfieldconditionsnewinsightsbroughtbyhighresolutionimaging AT martinezsebastien phenotypingtheresponseofanappletreehybridpopulationtosoilwaterconstraintunderfieldconditionsnewinsightsbroughtbyhighresolutionimaging AT labbesylvain phenotypingtheresponseofanappletreehybridpopulationtosoilwaterconstraintunderfieldconditionsnewinsightsbroughtbyhighresolutionimaging AT costesevelyne phenotypingtheresponseofanappletreehybridpopulationtosoilwaterconstraintunderfieldconditionsnewinsightsbroughtbyhighresolutionimaging AT regnardjeanluc phenotypingtheresponseofanappletreehybridpopulationtosoilwaterconstraintunderfieldconditionsnewinsightsbroughtbyhighresolutionimaging |
_version_ |
1758023661016580096 |