Negretta: ampelografia

OIV description value images
004 Young Shoot: density of prostrate hairs on tip 5 medium shoot
007 Shoot: color of dorsal side of internodes 2 green and red
008 Shoot: color of ventral side of internodes 1 green
016 Shoot: number of consecutive tendrils 1 2 or less
051 Young leaf: color of the upper side of blade (4 th leaf) 3 bronze leaf
053 Young leaf: density of prostrate hairs between main veins on lower side of blade (4th leaf) 7 high
065 Mature leaf: size of blade 3 small
067 Mature leaf: shape of blade 2 / 3 wedge-shaped / pentagonal
068 Mature leaf: number of lobes 3 five
070 Mature leaf: area of anthocyanin coloration of main veins on upper side of blade 2 only at the petiolar point
072 Mature leaf: goffering of blade 3 weak
074 Mature leaf: profile of blade in cross section 5 twisted
075 Mature leaf: blistering of upper side of blade 1 absent or very weak
076 Mature leaf: shape of teeth 3 both sides convex
078 Mature leaf: length of teeth compared with their width 5 medium
079 Mature leaf: degree of opening / overlapping of petiole sinus 3 open
080 Mature leaf: shape of base of petiole sinus 1 U-shaped
081-1 Mature leaf: teeth in the petiole sinus 1 none
081-2 Mature leaf: petiole sinus base limited by veins 1 not limited
082 Mature leaf: degree of opening / overlapping of upper lateral sinus 2 closed
083-2 Mature leaf: teeth in the upper lateral sinuses 1 none
084 Mature leaf: density of prostrate hairs between the main veins on lower side of blade 3 low
087 Mature leaf: density of erect hairs on main veins on lower side of blade 5 medium
094 Mature leaf: depth of upper lateral sinuses 5 medium
151 Flower: sexual organs 3 fully developed stamens and fully developed gynoecium
155 Shoot: fertility of basal buds (buds 1-3) 5 medium (1,1-1,3)
202 Bunch: length (peduncle excluded) 7 long bunch
204 Bunch: density 7 dense
208 Bunch: shape 1 / 2 cylindrical / conical
220 Berry: length 5 medium berry
221 Berry: width 5 medium
223 Berry: shape 2 / 3 globose / broad ellipsoid
225 Berry: color of skin 6 blue black
231 Berry: intensity of flesh anthocyanin coloration 1 none or very weak
236 Berry: particularity of flavor 1 none
241 Berry: formation of seeds 3 complete