MaineChip
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General
- Origin & Breeding: bred from the cross (AF186-2 x AF84-4) made by A.F. Reeves, University of Maine, Presque Isle, Maine (USA) in 1975.
- Year registered in Canada: 1996
- Registration number: 4367
- Maturity: mid-season
Botanical Features
- Plants: medium large, spreading; stems not pigmented; medium prominent wings; smooth, unswollen nodes.
- Leaves: grey green with abundant short pubescence; open; midribs and petioles not pigmented.
Terminal leaflets: elliptical; apex acuminate; base obtuse.
Primary leaflets: three to four pairs; elliptical; apex acuminate; base obtuse to slightly cordate.
Secondary leaflets: three pairs. - Flowers: moderately large white corolla; yellow-orange anthers; buds not pigmented; very low berry production.
- Tubers: round; lightly netted buff skin; medium-deep eyes; white flesh.
- Sprouts: ovoid; reddish purple; strongly pubescent; closed tip.
Agricultural Features
Medium high yielding variety; good resistance to heat necrosis; moderate resistance to shatter bruises and blackspot; moderately susceptible to hollow hear; susceptible to greening. Very good chip colour even after long term storage; can be chipped directly from 7 °C storage or after reconditioning. Fair storability, medium dormancy period. High specific gravity.
REMARK: not susceptible to the herbicide metribuzin when applied at recommended rates.
- Utilization: very good for boiling and baking; excellent for for chipping.
- Chief Market: chipping.
Reaction to Diseases
Highly resistant: leaf roll net necrosis.
Moderately resistant: rhizoctonia, verticillium wilt.
Moderately susceptible: common scab.
Susceptible: PVX, PVY, leaf roll, powdery scab, late blight, early blight, fusarium dry rot, golden nematode.
NOTE: mosaic symptoms appear late in the season.
References: 1, 8.
Send your comments to cfia.potatosection-sectiondespommesdeterre.acia@inspection.gc.ca regarding potato variety descriptions.
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