Alta Crown

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GENERAL

• Origin & Breeding: bred from the cross (AC83172-1RU x CO86030-1RU) made by the Colorado State University, San Luis Valley Research Center (USA ) and Agriculture and Agri-Food Canada, Lethbridge Research Center, Alberta, in 1992.
• Year registered in Canada: 2007
• Registration number: 6234
• Maturity: mid-season

BOTANICAL FEATURES

• Plants: medium size, semi-erect, compact; thick stems weakly pigmented at the base; straight single wings; nodes swollen.
• Leaves: dark green, semi-open; midribs weakly pigmented at base of lateral leaflets, petioles weakly pigmented.
  Terminal leaflets: medium ovate; tip cuspidate; base cordate; moderately wavy margins.
  Primary leaflets: four pairs; medium ovate; tip cuspidate; base cordate; moderately wavy margins.
  Secondary leaflets: few.
• Flowers: medium profusion; large, red-violet and strongly pigmented corolla; slightly prominent star; lemon yellow anthers; flower buds strongly pigmented; long sepals; peduncles weakly pigmented.
• Tubers: large; oblong to long; russetted brown skin; shallow eyes, evenly distributed; non prominent eyebrows; cream coloured flesh.
• Sprouts: broad cylindrical; blue-violet; strongly pubescent; base strongly pigmented; tip weakly pigmented.

AGRICULTURAL FEATURES

High yielding variety of attractive appearance; medium number of tubers per plant. Rather good resistance to external and internal defects. Medium dormancy period; good storage capability; medium to high specific gravity.

Alta Crown gives its best performance under irrigated conditions; optimum spacing is at 30 cm (12 in).

• Utilization: low boiling sloughing and no after cooking discoloration. Very good for boiling and baking; excellent for french frying.
• Chief Markets: french fries and fresh market.

REACTION TO DISEASES

Highly resistant: common scab.
Moderately resistant: early blight, tubers late blight.
Susceptible: leaf late blight.

References: 1.

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