Katahdin

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General

• Origin & Breeding: bred by the USDA from the cross (USDA 24642 x USDA 40568) in Presque Isle, Maine (USA) in 1923.
• Year registered in Canada: 1932
• Registration number: P-13
• Maturity: late season

Botanical Features

• Plants: medium to large, spreading; thick stems, prominently angled, weakly pigmented.
• Leaves: dark green, large, close; petioles weakly pigmented.
  Terminal leaflets: large, broadly ovate; apex acute; base lobed.
  Primary leaflets: four to five pairs; broadly ovate.
  Secondary and tertiary leaflets: few.
• Flowers: numerous, light lilac corolla with white tips; flower buds light green.
• Tubers: round to oblong, large; smooth buff skin; few very shallow eyes; white flesh.
• Sprouts: ovoid, lilac to reddish purple; highly pubescent; base strongly pigmented; apex weakly pigmented.

Agricultural Features

Medium to high yielding variety; slow development early in season then rapidly; widely adapted; tolerant to drought; washes well at maturity; excellent storability, grades well with few culls; medium dormancy period; medium specific gravity.

REMARKS: since tubers set high in hill, it is recommended that a large hill be formed early with a final hilling after tubers are set to avoid sunburn.

• Utilization: moist texture; good for boiling and baking, suitable for chipping and french frying.
• Chief Market: fresh market.

Reaction to Diseases

Resistant: PVA.
Moderately resistant: blackleg, net necrosis, verticillium wilt, PVS, PVX, PVY.
Susceptible: common scab, fusarium dry rot, late blight, leaf roll, rhizoctonia, potato wart.

References: 1, 6.

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