Cultivar 15: Chinook

Chinook is an early hardy apple-crab hybrid from N. E. Hansen's South Dakota program, introduced in 1924. Sources describe it as the first in a series of crosses that used a standard apple as the seed parent and the wild crab of Elk River, Minnesota, as the pollen parent. The cross is given as Baldwin x Elk River wild crab, sometimes identified with Pyrus ioensis. It was named after an Indian tribe and was presented as a promising fruit for the far North. [S1] [S2] [S3]

Hansen's records place Chinook among his first generation hybrids bred to improve the American wild crabapple while keeping northern hardiness. Later indexes and catalogs continue to list it both as an apple and as a wild crabapple. This reflects its intermediate character more than any clear modern category. [S1] [S3]

The fruit is described as oblate, dark red, and subacid. Early fruits were about 2 inches across, and later fruits reached about 2 by 2 1/2 inches. A later Prairie Canada summary gives the size more briefly as about 5 cm. Sources agree that it kept well, with a season that extended through winter. One South Dakota bulletin gives the strongest storage note: fruit picked on September 3, 1927 was still in good condition when examined on May 14, 1929, after outdoor cellar storage, and it still made a pleasant flavored sauce. [S1] [S2] [S3]

Its recorded use leans more toward keeping and cooking than fresh dessert quality. The long storage life was unusual enough to be singled out, and sauce made from very old stored fruit was still considered good. [S1]

The broader breeding context also matters. Chinook was one of six first generation hybrid varieties in Hansen's wild crab improvement work, a program shaped by northern hardiness, productivity, and disease resistance under prairie conditions. The Elk River wild crab used in this line was described elsewhere in the same bulletin as hardy, productive, and practically immune to blight in station plantings, which helps explain why Hansen used it. [S1] [S3]

Its modern shorthand classification remains uncertain. Some sources call it a crabapple or wild crabapple, while later Prairie Canada treatment lists it among edible apples. The sources agree more clearly on its parentage, color, size range, and exceptional keeping quality than on any single modern market class. [S1] [S2] [S3]

Summary source basis

• S1: New Hardy Fruits for the Northwest
• S2: Edible Apples in Prairie Canada
• S3: Plant Introductions

This summary currently draws chiefly from New Hardy Fruits for the Northwest, with 2 additional supporting sources linked below.

Featured source descriptions

“Listed in the table of contents under "TAMING THE AMERICAN WILD CRABAPPLE" with entry page 14.”
— ^[1]

“Reference points to Bulletin 224, page 11.”
— ^[1]

“Named after an Indian tribe.”
— ^[1]

“Subacid.”
— ^[1]

Direct parent cultivars

• No direct linked parent cultivars promoted yet.

Parentage claim text

• Baldwin apple x wild crab of Elk River, Minnesota, Pyrus ioensis.
• Chinook is Baldwin x ioensis 'Elk River'.
• Baldwin apple x Elk River, Minn., wild crab.
• Parentage is printed as Baldwin x ioensis 'Elk River' (scan/OCR slightly unclear).

Derived or downstream cultivar links

• No derived or downstream lineage links yet.

Source-story quotations

• Chinook (Balwin Xioensis 'Elk River') Hansen (1924) Fruit 5cm, dark red. Keeper. Named for an Indian tribe. Ref CGS (Brooks and Morden). CREdible Apples in Prairie Canada, p22
• The Chi nook Keeps 20 Months and 11 Days: May 14, 1929, fruit of the Chinook was examined and found in good condition, and made a good, pleasant flavored sauceNew Hardy Fruits for the Northwest, p15
• Chinook (Balwin Xioensis 'Elk River') Hansen (1924) Fruit 5cm, dark red. Keeper. Named for an Indian tribe. Ref CGS (Brooks and Morden). CREdible Apples in Prairie Canada, p22
• Chinook (Balwin Xioensis 'Elk River') Hansen (1924) Fruit 5cm, dark red. Keeper. Named for an Indian tribe. Ref CGS (Brooks and Morden). CREdible Apples in Prairie Canada, p22

Taxonomy context: No family-tree context surfaced yet.

Related cultivars mentioned in source context