Figure 1.

Ranges and distributions of weight (a), transverse diameter (b), longitudinal diameter (c), total soluble solid (d), titratable acid (e) and pH (f) of ripe berries belonging to different grape species/groups harvested in 2017 and 2018. The height of each box is equal to the interquartile range. The horizontal line in the interior of each box is the median. The whiskers extended from the top and bottom of each box with horizontal lines are the maximums and minimums, respectively. Abbreviations: Am, V. amurensis; Hy, hybrids of V. amurensis and V. vinifera; Vi, V. vinifera.