Negrat: ampelografia

OIV description value images
001 Young shoot: opening of the shoot tip 5 fully open shoot
004 Young Shoot: density of prostrate hairs on tip 7 high
007 Shoot: color of dorsal side of internodes 1 green
008 Shoot: color of ventral side of internodes 2 green and red
016 Shoot: number of consecutive tendrils 1 2 or less
051 Young leaf: color of the upper side of blade (4 th leaf) 2 yellow leaf
053 Young leaf: density of prostrate hairs between main veins on lower side of blade (4th leaf) 5 medium
065 Mature leaf: size of blade 9 very large
067 Mature leaf: shape of blade 3 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 / 3 only at the petiolar point / up to the 1st bifurcation
072 Mature leaf: goffering of blade 1 absent or very weak
074 Mature leaf: profile of blade in cross section 1 flat
075 Mature leaf: blistering of upper side of blade 3 weak
076 Mature leaf: shape of teeth 5 mixture between both sides straight (note 2) and both sides convex (note 3)
078 Mature leaf: length of teeth compared with their width 5 medium
079 Mature leaf: degree of opening / overlapping of petiole sinus 3 / 5 open / closed
080 Mature leaf: shape of base of petiole sinus 3 V-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
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 5 medium
087 Mature leaf: density of erect hairs on main veins on lower side of blade 5 medium
093 Mature leaf: length of petiole compared to length of middle vein 3 slightly shorter
151 Flower: sexual organs 3 fully developed stamens and fully developed gynoecium
153 Inflorescence: number of inflorescences per shoot 2 1,1 to 2 inflorescences
155 Shoot: fertility of basal buds (buds 1-3) 5 medium (1,1-1,3)
202 Bunch: length (peduncle excluded) 5 medium bunch
204 Bunch: density 9 very dense
206 Bunch: length of peduncle of primary bunch 3 short
208 Bunch: shape 2 conical
209 Bunch: number of wings of the primary bunch 3 3 - 4 wings
220 Berry: length 5 medium berry
221 Berry: width 5 medium
223 Berry: shape 2 globose
225 Berry: color of skin 6 blue black
236 Berry: particularity of flavor 1 none
241 Berry: formation of seeds 3 complete