{"id":727,"date":"2026-05-27T08:12:23","date_gmt":"2026-05-27T08:12:23","guid":{"rendered":"https:\/\/rock-crusher-tractor.com\/?p=727"},"modified":"2026-05-27T08:12:23","modified_gmt":"2026-05-27T08:12:23","slug":"korean-highland-potato-variety-guide-market-altitude-stone","status":"publish","type":"post","link":"https:\/\/rock-crusher-tractor.com\/fr\/korean-highland-potato-variety-guide-market-altitude-stone\/","title":{"rendered":"Korean Highland Potato Variety Guide \u2014 Matching Variety to Market, Altitude, and Stone Management System"},"content":{"rendered":"
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rock-crusher-tractor.com\/contact-us<\/a><\/div>\n
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Korean Highland Potato Variety Guide \u2014 Matching Sumi, Daejima, Dubaek, and Atlantic to Market Channel, Altitude, and Stone Clearing Standard<\/h1>\n

Variety choice is not just a seed decision \u2014 it determines the storage protocol, the harvest window, the processing suitability, and how strictly the stone clearing standard must be applied. Atlantic on un-cleared ground is a financially damaging combination. Dubaek for February premium market without storage capacity is a missed opportunity.<\/p>\n

Variety and System Consultation<\/a><\/p>\n<\/div>\n<\/div>\n

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Korean highland potato variety selection is one of the most consequential pre-season decisions a highland farmer makes \u2014 yet it is often made by habit rather than by systematic matching of variety characteristics to the farm’s specific situation. The four commercially dominant Korean highland potato varieties \u2014 Sumi, Daejima, Dubaek, and Atlantic \u2014 have substantially different agronomic profiles, market channel requirements, storage characteristics, and stone clearing sensitivity. Growing the wrong variety for the intended market, altitude, or storage capability consistently produces below-potential revenue even from correctly managed fields.<\/p>\n

This guide provides a systematic comparison of the four varieties across the dimensions that matter for Korean highland potato system planning \u2014 not just agronomy, but the direct interaction between variety choice and the stone clearing, harvest, and storage management decisions that determine the season’s economic outcome. The complete potato machinery system<\/a> performs at its full potential only when the variety planted matches the market, altitude, and storage infrastructure of the specific farm operation.<\/p>\n

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Why Variety Matters Beyond Basic Agronomy \u2014 The System Connections<\/h2>\n

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The connection between variety selection and the complete Watanabe potato system goes beyond yield potential and disease resistance \u2014 the variety’s specific characteristics directly affect every downstream operation from harvest through storage:<\/p>\n

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Variety \u00d7 Stone clearing:<\/span><\/p>\n

Atlantic processing potato requires absolute zero stone tolerance \u2014 any stone-to-tuber contact in the digger zone produces surface damage (skin scoring) that registers as a quality defect at crisp manufacturer intake, triggering rejection or price penalty. Sumi fresh market potato has the same mechanical intolerance for stone contact as Atlantic but for a different reason: skin abrasion on fresh market tubers reduces Grade 1 appearance. Both varieties require the same thorough Concasseur de roches THOR 2.4<\/a> + CT-2100 stone clearing standard. Dubaek, planted for extended storage, also needs full zero-stone clearance \u2014 but its skin is inherently tougher and slightly more tolerant of minor stone contact than Sumi.<\/p>\n<\/div>\n

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Variety \u00d7 EP-AWB-1600 speed:<\/span><\/p>\n

Atlantic’s tubers are more bruise-sensitive than Sumi or Dubaek at equivalent harvest speed \u2014 Atlantic should always be harvested at the lower speed range (1.5\u20132.0 km\/h) to minimise mechanical impact bruising that produces the Maillard browning in fried crisps that makes the batch unsaleable. Dubaek, destined for extended storage, should also be harvested carefully for skin integrity. Daejima, a robust variety suited to cooperative wholesale, tolerates the mid-range harvest speed (2.0\u20132.5 km\/h) without significant grade penalty.<\/p>\n<\/div>\n

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Variety \u00d7 Storage temperature:<\/span><\/p>\n

Atlantic must be stored at 8\u201310\u00b0C (above fresh market storage temperature of 3\u20136\u00b0C) to prevent cold-induced sweetening that ruins crisp colour. This means Sumi and Atlantic cannot share the same cold storage room if each is to be held at its optimal temperature. Dubaek tolerates the widest storage temperature range (2\u20137\u00b0C) without quality penalty \u2014 the most flexible variety for farms with limited storage zone differentiation capability.<\/p>\n<\/div>\n<\/div>\n

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The Four Varieties \u2014 Complete Agronomic and Commercial Profiles<\/h2>\n
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Sumi () \u2014 Korea’s Fresh Market Standard<\/h3>\n

March\u00e9 de produits frais<\/span><\/p>\n<\/div>\n

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Agronomic characteristics<\/p>\n