Sierra

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Leaf Flowers Plant
Sprout Sliced tuber Tuber

General

  • Origin & Breeding: bred and selected by Plant Breeding International Cambridge Ltd., Cambridge, England, from (LR3 x D42-8) in 1979.
  • Year registered in Canada: 1998
  • Registration number: 4699
  • Maturity: late.

Botanical Features

  • Plants: medium height, semi-erect. Stems medium thin, strong pigmentation; slightly swollen nodes; waved single wings.
  • Leaves: dark green, moderately open; midribs moderately to strongly pigmented, moderately pubescent.
    Terminal leaflets: ovate, acuminate tip, cordate and symetrical base.
    Primary leaflets: 3 to 4 pairs, narrowly ovate, acuminate tip, symmetrical and cordate base, medium size.
  • Flowers: numerous inflorescences with many flowers each, medium pigmentation on buds, blue-violet corolla with small white tips, orange anthers, strong to very strong pigmentation on peduncule. Medium berry production.
  • Tubers: oval; smooth, light yellow skin; few, shallow and predominantly apical eyes; medium yellow flesh.
  • Sprouts: ovoid, blue-violet, weak to moderate pubescence, apex closed.

Agricultural Features

Medium to high yielding variety with excellent virus resistance. Grows well in a wide range of climates. Moderately resistant to drought and bruising. Medium long dormancy. High specific gravity.

  • Utilization: very good for french frying, moderately good for chipping.
  • Chief Market: fresh market, processing and exportation.

Reaction to Diseases

Immune: PVX, PVA, golden nematode (RO1).
Highly resistant: leaf roll.
Moderately resistant: dry rot.
Moderately susceptible: PVY, late blight, common scab, powdery scab.
Susceptible: potato wart.
Very susceptible: blackleg.

References: 1

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