Vine vigorous, hardy, healthy, productive. Canes medium in length, numerous, reddish-brown with thick bloom; nodes enlarged; internodes short; shoots glabrous; tendrils intermittent or continuous, bifid. Leaves thick, firm; upper surface dark green, dull, rugose; lower surface tinged with blue, faintly pubescent, cobwebby; lobes variable in number, terminal one acute; petiolar sinus deep, narrow, closed, sometimes overlapping; basal sinus shallow; lateral sinus shallow, narrow; teeth shallow; stamens upright.
Fruit very late, keeps well. Clusters medium to small, long, tapering, often single-shouldered, compact; pedicel short, slender, with numerous warts; brush short, thick, wine-colored. Berries small, round, black, covered with heavy bloom, persistent, firm; skin thin, tough, adherent with purple pigment, astringent; flesh dark green, translucent, juicy, tough, firm, spicy, tart; poor in quality. Seeds adherent, one to six, small, short, blunt, dark brown.
Delaware
(Labrusca, Bourquiniana, Vinifera)
French Grape, Gray Delaware, Ladies' Choice, Powell, Ruff
Delaware ([Plate VII]) is used wherever American grapes are grown as the standard to gauge the quality of other grapes. Added to high quality in fruit, the variety withstands climatic conditions to which all but the most hardy varieties succumb, is adapted to many soils and conditions, and bears under most situations an abundant crop. These qualities make it, next to Concord, the most popular grape for garden and vineyard now grown in the United States. Besides the qualities named, the grapes mature sufficiently early to make the crop certain, are attractive in appearance, keep and ship well and are more immune than other commercial varieties to black-rot. Faults of the variety are: small vine, slow growth, susceptibility to mildew, capriciousness in certain soils and small berries. The first two faults make it necessary to plant the vines more closely than those of other commercial varieties. Delaware succeeds best in deep, rich, well-drained, warm soils, but even on these it must have good cultivation, close pruning and the crop must be thinned.
Delaware is grown North and South, westward to the Rocky Mountains. It is now proving profitable in many southern locations as an early grape to ship to northern markets. It is an especially desirable grape to cultivate in small gardens because of its delicious, handsome fruit, its compact habit of growth and its ample and lustrous green, delicately formed leaves which make it one of the most ornamental of the grapes. Delaware can be traced to the garden of Paul H. Provost, Frenchtown, New Jersey, where it was growing early in the nineteenth century, and from whence it was taken to Delaware, Ohio, in 1849 and from there distributed to fruit-growers.
Vine weak, hardy, productive. Canes short, numerous, slender, dark brown; nodes enlarged; internodes short; tendrils intermittent, short, bifid. Leaves small; upper surface dark green, dull, smooth; lower surface pale green, pubescent; lobes three to five in number, terminal one acute; petiolar sinus narrow; basal sinus narrow and shallow when present; lateral sinus deep, narrow; teeth shallow. Flowers self-fertile, open late; stamens upright.
Fruit early, keeps well. Clusters small, slender, blunt, cylindrical, regular, shouldered, compact; pedicel short, slender, smooth; brush light brown. Berries uniform in size and shape, small, round, light red, covered with thin bloom, persistent, firm; skin thin, tough, adherent, unpigmented, astringent; flesh light green, translucent, juicy, tender, aromatic, vinous, refreshing, sweet; best in quality. Seeds free, one to four, broad, notched, short, blunt, light brown.