Quantitative analysis of the berry size in grapevine cultivar ‘Italia’ •

E Somogyi,P Bodor-Pesti,J Lázár,D Á Nyitrainé Sárdy,Á Kun

doi:10.1556/446.2021.30007

E Somogyi, P Bodor-Pesti + Show 3 more

Open Access

https://doi.org/10.1556/446.2021.30007

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Abstract

AbstractQuantitative evaluation of the horticultural crops has high importance to identify cultivars, describe the effect of the growing location and cultivation technology or define consumer's preference regarding the size and shape. Fruit traits of the grapevine (Vitis vinifera L.) are mainly described by the bunch and berry morphology notably bunch and berry size, weight and shape. Ampelographers particularly evaluate the berry based on the seed number as it influences size and consumers' decision. In this study, berry morphological traits of the grapevine cultivar ‘Italia’ was investigated based on digital image analysis. Samples were collected from two vineyards in Hungary with different ecological and cultivation circumstances. Altogether 12 traits were investigated: weight, seed number, size and shape attributes. Results showed that berry morphological traits – except from the shape attributes – are not differing between the two sampling locations. In accordance with previous studies, seed number – ranging from 0 to 4 – had noticeable effect on the size attributes.

Highlights

Vegetable and fruit species have numerous quality parameters, and consumers are mainly affected by the size, the typical colour and the shape (Predieri et al, 2004)
The program can evaluate different fruit shape indexes, the Fruit shape index external I, which is the ratio of the maximum height and maximum width, and Fruit shape index external II, being the ratio of the height mid width and width mid height
Morphological characteristics of the grapevine cultivar ‘Italia’ in different locations: Results showed that in the case of the investigated size traits there were no significant differences of the values of the two locations

Summary

Introduction

Vegetable and fruit species have numerous quality parameters, and consumers are mainly affected by the size, the typical colour and the shape (Predieri et al, 2004). The colourful paintings showed divers berry shapes and sizes and in some cases, parthenocarpy-like berries are possible to identify in the figures, which is a widely investigated phenomenon in grapevine and causes divers berry sizes within bunches. Today both ampelographic literatures (Barbagallo et al, 2011) and official descriptors, as the descriptor list of the International Organisation of Vine and Wine (OIV) detail berry size classes (OIV, 2009), which are measured for example with ruler (Frege, 1804), with calliper (Kircherer et al, 2013) or with digital image analysis (Roscher et al, 2014). The asymmetry of the fruit can be described with the help of the software (Rodrıguez et al, 2010)

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