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Undine
type: Culinary, Dessert, Sauce
summary: Typical of its Jonathan heritage, this varietal produces juicy and sweet fruit and is well suited to hobby orchards and U-pick operations.
identification: Medium to large, round to round conic, sometimes round-oblong. Ribbed. The base colour is greenish, washed red and marked with scattered darker stripes on the sun-exposed face. The calyx is small and partly open, set in a medium deep and medium narrow basin. The stem is long and slender, set in a deep and narrow cavity. Sometimes russeted around the stem cavity. Very tough skin.
characteristics: The flesh is white, firm. Very juicy and sweet-tart.
origins: Seedling of an open-pollinated Jonathan raised in the 1930s by Professor M. Schmidt at the Kaiser Wilhelm Institute, in Müncheberg (Germany).
cultivation: Pyramidal crown. Requires pruning to maintain fruit size. Starts to bear fruit quite young. Tends to produce best harvests every other year unless pruned heavily. A good source of pollen for surrounding trees. Becomes biennial at maturity if left unpruned. Sensitive to frost.
cold storage: Keeps up to five months, but should be left to mature in storage for about six weeks.
vulnerabilities: Susceptible to fire blight and mildew.
harvest: Ready for harvest in the first half of the fifth period.
pollination group: C
pollination peak: 8
ploidism: Diploid. Self sterile.
cold storage weeks: 12
harvest period: 5
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