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Table 1 Manual scoring metrics for seven external fruit quality traits

From: A novel 3D imaging system for strawberry phenotyping

External quality parameter

Scoring metric

Achene number

Number of achenes visible, without disturbing calyx

Calyx size

Maximum Euclidean distance between any pair of points on the calyx


Scale 1–8 (strawberry colour chart for experimental ends, Ctifl, France)


Dimension of fruit from centre of calyx to tip of nose


Greatest dimension of fruit orthogonal to the height


Greatest dimension of the fruit orthogonal to both height and length


Volume of displaced water when fruit was completely submerged