Effect of source/sink ratio on leaf and fruit traits of blueberry fruiting canes in the field

Primer Autor
Jorquera-Fontena, E.
Co-autores
Pastenes, C.#Merino-Gergichevich, C.#Franck, N.
Título
Effect of source/sink ratio on leaf and fruit traits of blueberry fruiting canes in the field
Editorial
ELSEVIER SCIENCE BV
Revista
SCIENTIA HORTICULTURAE
Lenguaje
en
Resumen
The source/sink relationship affects plant production and fruit quality in the field. This study aims to evaluate leaf and fruit traits of two field-grown blueberry cultivars as affected by variability of source/sink ratio (expressed as cm(2) leaf area-to-fruit number ratio) at fruiting cane level. We found that range of source/sink ratio was larger in cv. 'Legacy' than cv. 'Bluegold' with no effect of season on this variable. There was a curvilinear increase of leaf dry mass-to-leaf area ratio (LMA) with source/sink ratio, which suggests that leaves acted as alternative carbon sinks to fruits. The relation between theses variable was no affected by cultivar. Mass-based nitrogen linearly decreased with source/sink ratio, while area-based nitrogen increased in curvilinear form by the effect of LMA. For leaf nitrogen values, a notable difference between cultivars was observed. Stomatal conductance (g(s)) dropped with increasing source/sink ratios with 'Bluegold' achieving higher g(s) than 'Legacy' for any given source/sink ratio. Dry (DWf) and fresh mass, diameter and total soluble solids (SS) of the fruit were related to source/sink ratio through curvilinear fit in both cultivars. The observed relations were similar between cultivars for DWf and SS, which suggest that the rate of the response of fruit carbon gain to changing source/sink ratios was conservative between the studied cultivars. Our results showed that fruit-bearing blueberry canes are semiautonomous regulating their resource allocation as function of source/sink ratio.
Tipo de Recurso
Artículo original
Description
The first author acknowledges to the Agricultural Experimental Station of the University of La Frontera, Temuco, Chile, for facilitating plant material and to FONDECYT Nro. 3170734 for financial support.
El primer autor agradece a la Estación Experimental Agrícola de la Universidad de La Frontera, Temuco, Chile, por facilitar el material vegetal y al FONDECYT Nro. 3170734 por el apoyo financiero.
doi
10.1016/j.scienta.2018.06.041
Formato Recurso
pdf
Palabras Claves
Leaf area-to-fruit number ratio# Regression# Leaf mass area# Leaf nitrogen# Stomatal conductance# Fruit weight# Soluble sugars
Ubicación del archivo
http://dx.doi.org/10.1016/j.scienta.2018.06.041
Categoría OCDE
Horticulture
Materias
Relación área foliar-número de frutos# Regresión# Área de masa foliar# Nitrógeno foliar# conductancia estomática# Peso del fruto# Azúcares solubles
Disciplinas de la OCDE
Horticultura
Otras Ciencias Agrícolas
Botánica
Id de Web of Science
WOS:000441486600006
Título de la cita (Recomendado-único)
Effect of source/sink ratio on leaf and fruit traits of blueberry fruiting canes in the field
Identificador del recurso (Mandatado-único)
Artículo original
Versión del recurso (Recomendado-único)
version publicada
Editorial
ELSEVIER SCIENCE BV
Revista/Libro
SCIENTIA HORTICULTURAE
Categoría WOS
Horticultura
ISSN
0304-4238
Idioma
en
Referencia del Financiador (Mandatado si es aplicable-repetible)
UFRO#ANID FONDECYT 3170734
ANID FONDECYT 3170734
Descripción
The first author acknowledges to the Agricultural Experimental Station of the University of La Frontera, Temuco, Chile, for facilitating plant material and to FONDECYT Nro. 3170734 for financial support.
Formato
pdf
Tipo de ruta
suscripción
Access Rights
metadata
Derechos de acceso
metadata
Página de inicio (Recomendado-único)
163
Página final (Recomendado-único)
190
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