Ivory Crisp

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Leaf Flowers Plant
Sprout Tuber Sliced tuber

General

  • Origin & Breeding: bred from the cross (ND292-1 x A77268-4) made in 1980, at the North Dakota State University. Released by the Agricultural Research Service of the United States Department of Agriculture (USDA-ARS) and the Experiment Stations of Idaho, Oregon, Washington and North Dakota in 2002.
  • Year registered in Canada: 2010
  • Registration number: 6866
  • Maturity: mid-season to late

Botanical Features

  • Plants: medium height, spreading; thin stems, sometimes weakly pigmented; waved single wings; nodes slightly swollen, not pigmented; very branching habit.
  • Leaves: yellowish green, semi-open; midribs and petioles not pigmented.
    Terminal leaflets: medium to broadly ovate; tip acute to acuminate; base cordate, slightly asymmetrical; slightly wavy margins.
    Primary leaflets: four pairs; medium ovate; tip acute to acuminate; base cordate, very asymmetrical.
  • Flowers: very numerous, white corolla with prominent star; bright yellow anthers; flower buds sometimes slightly pigmented; peduncles not pigmented; moderate to high berry production.
  • Tubers: round, slightly compressed; flaky buff skin; few moderately deep eyes, predominantly apical; slightly prominent eyebrows; white to cream flesh.
  • Sprouts: broad cylindrical; red-violet; base strongly pubescent, strongly pigmented; tip weakly pubescent, weakly pigmented, closed habit.

Agricultural Features

Medium to high yielding variety; good resistance to hollow hart, second growth, stem-end discoloration, internal brown spot and blackspot bruise; susceptible to shatter bruise. Good resistance to cold sweetening. Short to medium dormancy period. High specific gravity.

  • Utilization: excellent chip colour at harvest and after storage. Excellent for potato chips, acceptable for boiling and mashing.
  • Chief Market: potato chips processing.

Reaction to Diseases

Highly resistant: tuber net necrosis.
Moderately susceptible: common scab, verticillium wilt.
Susceptible: early blight, leaf roll, PVX, PVY.
Highly susceptible: late blight, pink rot, powdery scab.

NOTE: Ivory Crisp shows strong symptoms of PVY.

References: 1, 8.

Send your comments to cfia.potatosection-sectiondespommesdeterre.acia@inspection.gc.ca regarding potato variety descriptions.

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