Quantitative analysis of the berry size in grapevine cultivar 'Italia' • Digital image analysis of the grapevine

Abstract

Quantitative 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.