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Fruit regulates bud sprouting and vegetative growth in field-grown loquat trees (Eriobotrya japonica Lindl.): nutritional and hormonal changes

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Fruit regulates bud sprouting and vegetative growth in field-grown loquat trees (Eriobotrya japonica Lindl.): nutritional and hormonal changes

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dc.contributor.author Reig Valor, Carmina es_ES
dc.contributor.author Farina, Vitorio es_ES
dc.contributor.author Mesejo Conejos, Carlos es_ES
dc.contributor.author Martínez Fuentes, Amparo es_ES
dc.contributor.author Barone, Francesca es_ES
dc.contributor.author Agustí Fonfría, Manuel es_ES
dc.date.accessioned 2016-04-20T10:18:17Z
dc.date.available 2016-04-20T10:18:17Z
dc.date.issued 2014-06
dc.identifier.issn 0721-7595
dc.identifier.uri http://hdl.handle.net/10251/62770
dc.description.abstract The effects of fruit on bud sprouting and vegetative growth were compared on fruiting and defruited loquat trees from fruit set onward. Carbohydrate and nitrogen content in leaves and bark tissues and hormone concentrations were studied during the fruit development and vegetative growth periods. On defruited trees, a significant proportion of buds sprouted in winter, whereas buds from fruiting trees sprouted only in the spring when fruit reached its final size. Furthermore, when panicles were completely removed in autumn, the buds also sprouted. In addition, fruit directly affected vegetative growth by reducing shoot length. An effect of sink removal ( flower or fruit) promoting bud sprouting, regardless of the season, was then demonstrated. Neither soluble sugar concentration nor nitrogen fraction concentration in leaves or bark tissues was related to bud sprouting, but a certain nutritional imbalance was observed during the most active period of fruit development. Moreover, fruit sink activity significantly modified hormone content by increasing indole-3-acetic acid (IAA) and reducing zeatin concentrations, resulting in a higher IAA/zeatin ratio parallel to the lower bud sprouting intensity. Therefore, these changes caused by fruit removal are all related to vegetative growth, but there is no evidence that they are responsible for bud burst. es_ES
dc.description.sponsorship This research was supported by the Spanish Ministerio de Ciencia e Innovacion (Project No. AGL2009-09718). The authors thank V. Martinez for his technical assistance, E. Soler and Cooperativa Agricola de Callosa d'En Sarria (Alicante, Spain) for providing the orchards and facilities, and D. Westall (Universitat Politecnica de Valencia) for revising the manuscript. en_EN
dc.language Inglés es_ES
dc.publisher Springer Verlag (Germany) es_ES
dc.relation Spanish Ministerio de Ciencia e Innovacion/AGL2009-09718 es_ES
dc.relation.ispartof Journal of Plant Growth Regulation es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Bud burst es_ES
dc.subject Sprouting es_ES
dc.subject Vegetative growth es_ES
dc.subject Nitrogen es_ES
dc.subject Sugars es_ES
dc.subject Plant hormones es_ES
dc.subject.classification PRODUCCION VEGETAL es_ES
dc.title Fruit regulates bud sprouting and vegetative growth in field-grown loquat trees (Eriobotrya japonica Lindl.): nutritional and hormonal changes es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1007/s00344-013-9364-2
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Agroforestal Mediterráneo - Institut Agroforestal Mediterrani es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Producción Vegetal - Departament de Producció Vegetal es_ES
dc.description.bibliographicCitation Reig Valor, C.; Farina, V.; Mesejo Conejos, C.; Martinez Fuentes, A.; Barone, F.; Agustí Fonfría, M. (2014). Fruit regulates bud sprouting and vegetative growth in field-grown loquat trees (Eriobotrya japonica Lindl.): nutritional and hormonal changes. Journal of Plant Growth Regulation. 33(2):222-232. doi:10.1007/s00344-013-9364-2 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.1007/s00344-013-9364-2 es_ES
dc.description.upvformatpinicio 222 es_ES
dc.description.upvformatpfin 232 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 33 es_ES
dc.description.issue 2 es_ES
dc.relation.senia 282083 es_ES
dc.identifier.eissn 1435-810


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