Carbon consumption of developing fruit and the fruit bearing capacity of individual RoHo 3615 and Pinova apple trees

dc.contributor.authorPenzel, Martin
dc.contributor.authorLakso, Alan Neil
dc.contributor.authorTsoulias, Nikos
dc.contributor.authorZude-Sasse, Manuela
dc.date.accessioned2022-05-02T10:41:33Z
dc.date.available2022-05-02T10:41:33Z
dc.date.issued2020-10-19
dc.description.abstractThis paper describes an approach to estimate the photosynthetic capacity and derive the optimum fruit number for each individual tree, in order to achieve a defined fruit size, which is named as the fruit bearing capacity of the tree. The estimation of fruit bearing capacity was carried out considering the total leaf area per tree as measured with a 2-D LiDAR laser scanner, LALiDAR, and key carbon-related variables of the trees including leaf gas exchange, fruit growth and respiration, in two commercial apple orchards. The range between minLALiDAR and maxLALiDAR was found to be 2.4 m² on Pinova and 4.3 m² on RoHo 3615 at fully developed canopy. The daily C requirement of the growing fruit and the associated leaf area demand, necessary to meet the average daily fruit C requirements showed seasonal variation, with maximum values in the middle of the growing period. The estimated fruit bearing capacity ranged from 33-95 fruit tree-1 and 45-121 fruit tree-1 on the trees of Pinova and RoHo 3615, respectively. This finding demonstrates sub-optimal crop load at harvest time in both orchards, above or below the fruit bearing capacity for individual trees. In conclusion, the LiDAR measurements of the leaf area combined with a carbon balance model allows for the estimation of fruit bearing capacity for individual trees for precise crop load management.en
dc.identifier.eissn2300-8725
dc.identifier.issn0236-8722
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/16784
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-15562
dc.language.isoenen
dc.relation.ispartof10.14279/depositonce-15247
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subject.ddc580 Pflanzen (Botanik)de
dc.subject.otherfruit growth rateen
dc.subject.otherfruit respirationen
dc.subject.otherleaf areaen
dc.subject.otherLiDARen
dc.subject.otherprecision horticultureen
dc.titleCarbon consumption of developing fruit and the fruit bearing capacity of individual RoHo 3615 and Pinova apple treesen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.doi10.31545/intagr/127540en
dcterms.bibliographicCitation.issue4en
dcterms.bibliographicCitation.journaltitleInternational Agrophysicsen
dcterms.bibliographicCitation.originalpublishernameIA PASen
dcterms.bibliographicCitation.originalpublisherplaceLublinen
dcterms.bibliographicCitation.pageend423en
dcterms.bibliographicCitation.pagestart409en
dcterms.bibliographicCitation.volume34en
tub.accessrights.dnbfreeen
tub.affiliationFak. 5 Verkehrs- und Maschinensysteme>Inst. Maschinenkonstruktion und Systemtechnik>FG Agromechatronikde
tub.affiliation.facultyFak. 5 Verkehrs- und Maschinensystemede
tub.affiliation.groupFG Agromechatronikde
tub.affiliation.instituteInst. Maschinenkonstruktion und Systemtechnikde
tub.publisher.universityorinstitutionTechnische Universität Berlinen
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