Gyogyam

OIV descriptors

Vine part / Description of the character

Notations

OIV 003

Young shoot: intensity of anthocyanin coloration on prostrate hairs of the shoot tip

 none or very low

OIV 004

Young shoot: density of prostrate hairs on the shoot tip

 medium

OIV 051

Young leaf: color of upper side of blade (4th leaf )

 light green with wine-red hue

OIV 053

Young leaf: density of prostrate hairs between main veins on lower side of blade (4th leaf )

 low

OIV 067

Mature leaf: shape of blade

 circular

OIV 068

Mature leaf: number of lobes

 five-lobed

OIV 076

Mature leaf: shape of teeth

 teeth on the end of lobs are  triangular with rounded tip and convex sides and lateral teeth are triangular with rounded tip and serriform

OIV 079

Mature leaf: degree of opening / overlapping of petiole sinus

 open, arche-shaped with sharp bottom

OIV 151

Flower: sexual organs

 hermaphrodite

OIV 202

Bunch: length (peduncle excluded)

 medium

OIV 204

Bunch: density

 dense/very dense

OIV 208

Bunch: shape

 cylindrical-conical, conical

OIV 223

Berry: shape

  elliptic, obovate

OIV 225

Berry: color of skin

 black

OIV 228

Berry: thickness of skin

 thick

OIV 301

Phenology/ Time of bud burst

 second ten days of April

OIV 304

Phenology/ Time of full physiological maturity of the berry 

 second ten days of September