On‐the‐go sensing of grape berry anthocyanins during commercial harvest: development and prospects
-
R.G.V. Bramley [2] ; M. Le Moigne [1] ; S. Evain [1] ; J. Ouzman [2] ; L. Florin [1] ; E.M. Fadaili [1] ; C.J. Hinze [3] ; Z.G. Cerovic [1]
-
[1] University of Paris-Sud
University of Paris-Sud
Arrondissement de Palaiseau, Francia
-
[2] CSIRO Ecosystem Science
-
[3] Taylors Wines
-
- Localización: Australian journal of grape and wine research, ISSN 1322-7130, Vol. 17, Nº 3, 2011, págs. 316-326
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
-
Resumen
Background and Aims: The development and adoption of Precision Viticulture approaches to grape and wine production have been hindered by the lack of a commercially available sensor for on‐the‐go sensing of fruit quality during harvest. In this work, we sought to deploy the Multiplex®, a fluorescence‐based non‐contact hand‐held optical sensor on a harvester, for on‐the‐go sensing of berry anthocyanins during the South Australian vintage of 2010.
Methods and Results: Measurements made of anthocyanin concentrations in the laboratory using the Multiplex showed high correlation (R2 > 0.9) with those made on the same grapes using the standard spectrophotogrametric method. When used in hand‐held mode in the field, data collected using Multiplex demonstrated a similar spatial structure to that observed in other data layers (remotely sensed vigour, yield, elevation). Similarly, when deployed on a harvester as an on‐the‐go sensor, data obtained using Multiplex exhibited the expected spatial structure.
Conclusions: Meaningful measurement of grape berry anthocyanins on‐the‐go during harvest is feasible using Multiplex.
Significance of the Study: This is the first time that berry colour has been sensed on‐the‐go during harvest. The work therefore paves the way for a greater focus on attributes of fruit quality in the delineation of vineyard management zones and implementation of Precision Viticulture.
