Accession details

Type = rootstock. Flower = female. Per Pongracz (see citation): "DESCRIPTION: Growing tip fairly open, resembling closely V. vinifera, felty, white with rose margin. Leaf round, medium in size, entire but fairly deeply lobed at the base of the shoot; light green, thick and leathery in structure, wavy edges, tufts of woolly hair between the veins; teeth nearly non-existant, marked only by the mucrones...Defoliates very late. Cane very vigorous, ribbed with long internodes and long, pointed-ovoid meidum-sized dormant buds. The upper ends of the cane are covered with loose woolly hair. APTITUDES: Cuttings of the Dog Ridge for use with heavily producing wine and raisen varieties on light sandy soils, where nematode infestation may be heavy. On fertile soils the extreme vigour of the grafted vines of this rootstock is a drawback because it induces zinc deficiency and bad setting of the berries. Dgo Ridge is not used as a rootstock in the Old World and its resistance to the phylloxera is seriously doubted." Per Galet (see citation): "Growing tip: felty, white with rose margin; brown stipules. Young leaves: downy above, felty below, yellowish-green. Leaf: orbicular-reniform, 135-5-35...thick, bullate, waby edges, glabrous with tufts of wooly hair between the veins; cobwebby veins and petioles; petiolar sinus lyre-shaped; teeth nearly flat, marked only by the mucrones; purple petioles. Flower cluster: female; small clusters with medium-small (12mm) berries, pulpy. Shoot: ribbed, downy at tip, reddish-brown (mahogany). Since it is only moderately resistant to phylloxera and lime and very difficult to root, Dog Ridge has never been of commerical importance in France. Its good resistance to nematodes has made it useful in California in light, sandy, irrigated soils, and it can also be a useful rootstock in its native Texas. Dog Ridge is a very vigorous variety. The leaves may carry a few phylloxera galls. It is not grown commerically in France."