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dc.contributor.authorDiago-Santamaría, María P.
dc.contributor.authorSanz-Garcia, Andres
dc.contributor.authorMillan, Borja
dc.contributor.authorBlasco, José
dc.contributor.authorTardáguila, Javier
dc.identifier.citationDiago, M. P., Sanz-Garcia, Andres, Millan, Borja, Blasco, J., Tardaguila, J. (2014). Assessment of flower number per inflorescence in grapevine by image analysis under field conditions. Journal of the science of food and agriculture, 94(10), 1981-1987.
dc.description.abstractBACKGROUND Flowers, flowering and fruit set are key determinants of grapevine yield. Currently, practical methods to assess the flower number per inflorescence, necessary for fruit set estimation, are time and labour demanding. This work aims at developing a simple, cheap, fast, accurate and robust machine vision methodology to be applied to RGB images taken under field conditions, to estimate the number of flowers per inflorescence automatically. RESULTS Ninety images of individual inflorescences of Vitis vinifera L. cultivars Tempranillo, Graciano and Carignan were acquired in the vineyard with a pocket RGB camera prior to flowering, and used to develop and test the ‘flower counting’ algorithm. Strong and significant relationships, with R2 above 80% for the three cultivars were observed between actual and automated estimation of inflorescence flower numbers, with a precision exceeding 90% for all cultivars. CONCLUSION The developed algorithm proved that the analysis of digital images captured by pocket cameras under uncontrolled outdoors conditions was able to automatically provide a useful estimation of the number of flowers per inflorescence of grapevines at early stages of flowering.
dc.titleAssessment of flower number per inflorescence in grapevine by image analysis under field conditions
dc.authorAddressInstituto Valenciano de Investigaciones Agrarias (IVIA), Carretera CV-315, Km. 10’7, 46113 Moncada (Valencia), Españaes 2014
dc.entidadIVIACentro de Agroingeniería
dc.journal.abbreviatedTitleJ.Sci.Food Agric.
dc.journal.titleJournal of the science of food and agriculture

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