Karch Mat

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

 low

OIV 051

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

 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 lateral teeth are triangular or serriform with convex sides

OIV 079

Mature leaf: degree of opening / overlapping of petiole sinus

 open, lyre-shaped or arched with sharp bottom, seldom with elliptic lumen

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

 round, sometimes slightly elliptic

OIV 225

Berry: color of skin

 black

OIV 228

Berry: thickness of skin

 medium, elastic

OIV 301

Phenology/ Time of bud burst

 first or second ten days of April

OIV 304

Phenology/ Time of full physiological maturity of the berry 

 second ten days of September