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Crop load does not increase the photosynthetic rate in Citrus leaves under regular cropping conditions. A study throughout the year

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Crop load does not increase the photosynthetic rate in Citrus leaves under regular cropping conditions. A study throughout the year

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dc.contributor.author González Nebauer, Sergio es_ES
dc.contributor.author Arenas, Carlos es_ES
dc.contributor.author Rodríguez Gamir, Juan es_ES
dc.contributor.author Bordon, Yolanda es_ES
dc.contributor.author Fortunato Almeida, Ambrosio es_ES
dc.contributor.author Monerri Huguet, Mª Consuelo es_ES
dc.contributor.author Guardiola Barcena, José Luís es_ES
dc.contributor.author Molina Romero, Rosa Victoria es_ES
dc.date.accessioned 2016-12-21T11:29:08Z
dc.date.available 2016-12-21T11:29:08Z
dc.date.issued 2013-08-27
dc.identifier.issn 0304-4238
dc.identifier.uri http://hdl.handle.net/10251/75538
dc.description.abstract [EN] The objective of this work was to study the influence of fruit load on CO2 assimilation in the leaves of citrus trees presenting alternate bearing habits, and the importance of this factor on photosynthetic rate variability throughout the year and under regular cropping conditions. The photosynthetic rate was measured on 60 days throughout the year on field-grown sweet orange plants under natural conditions in the Valencian Community, the most important citrus-producing area of Spain. The experiments were performed on the 'on' (high crop) and 'off' (low crop) bearing 40-year-old Salustiana sweet orange trees growing in the same orchard. Gas exchange and fluorescence parameters were measured during the year in young and old leaves on sun-exposed branches with and without fruit in the 'on' trees, and in fruitless branches of the 'off' trees. In non-manipulated Citrus trees, fruit load has no significant effect in any season on the photosynthetic rate in the leaves from branches without fruit. However, in high crop trees, the leaves of branches bearing fruit present a slightly lower photosynthetic rates (approx. 10%) than those of fruitless branches. Variations in mineral content (N, K and P) might explain not only these differences, but also the lower photosynthesis rate observed in old leaves (13-24 month-old leaves). Environmental conditions were the main factor for the variation of the photosynthetic rate, with variability of the monthly mean photosynthetic rate being much lower than that between days in the same month. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Scientia Horticulturae es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Citrus sinensis es_ES
dc.subject Photosynthesis es_ES
dc.subject Environmental conditions es_ES
dc.subject Fruit load es_ES
dc.subject Leaf age es_ES
dc.subject.classification BIOLOGIA VEGETAL es_ES
dc.subject.classification FISIOLOGIA VEGETAL es_ES
dc.title Crop load does not increase the photosynthetic rate in Citrus leaves under regular cropping conditions. A study throughout the year es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.scienta.2013.06.008
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural - Escola Tècnica Superior d'Enginyeria Agronòmica i del Medi Natural es_ES
dc.description.bibliographicCitation González Nebauer, S.; Arenas, C.; Rodríguez Gamir, J.; Bordon, Y.; Fortunato Almeida, A.; Monerri Huguet, MC.; Guardiola Barcena, JL.... (2013). Crop load does not increase the photosynthetic rate in Citrus leaves under regular cropping conditions. A study throughout the year. Scientia Horticulturae. 160:358-365. doi:10.1016/j.scienta.2013.06.008 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://dx.doi.org/10.1016/j.scienta.2013.06.008 es_ES
dc.description.upvformatpinicio 358 es_ES
dc.description.upvformatpfin 365 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 160 es_ES
dc.relation.senia 251664 es_ES


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