Trowbridge. (Lab. Vin.) According to American Horticultural Annual, 1870, a sport from the Isabella with much larger bunches and berries than those of its parent.
Troy. (Lab. Vin.) Purple Hamburgh of Troy; Troy Hamburg. Described by Prince in 1830 as hardy, vigorous, productive; berries large, oval, a little foxy, pleasant; very good; similar to Isabella.
Tryone. (Lab. Rip. Vin. Bourq.) From a cross by Munson between One Seed and Rommel, about 1897. Stamens erect; bunch and berry large, white; very late.
Tuckerman. From J. B. Tuckerman, Cassville, Oneida County, New York, about 1870. A white grape.
Tuskahoma. (Lab. Vin. Bourq.) A member of Munson’s Delago family, the male parent being Brilliant; first fruited in 1899. Stamens erect; bunch and berry large, translucent red; equal to Brighton in quality; early.
U. B. One of Marine’s seedlings; a black grape, of Labrusca type.
Uhland. (Rip. Lab.) A seedling of Taylor; from Wm. Weidmeyer, Hermann, Missouri. Vigorous, hardy, healthy, usually a shy bearer; stamens erect; bunch medium, nearly cylindrical, compact, sometimes shouldered; berry medium, slightly oblong, greenish-yellow with thin bloom; skin thin, tender, cracks; pulp tender, juicy, sweet, pleasant; good; ripens a few days later than Concord; subject to rot in some sections; makes a very good wine.
Uller Mammoth. Reported by the Tennessee Experiment Station in 1894 as an exceedingly large grape of inferior quality; a vigorous vine.
Ulrey. Mentioned by Warder in 1867. From Indiana; medium bunch with large white berry; sweet, rich.
Una. (Lab.) A White Concord seedling; from E. W. Bull, about 1867. Healthy and vigorous; bunch and berries medium; resembles Martha but not so sweet and more foxy; ripens a week before Concord.