Fruit genetic resources of Estonian University of Life Sciences

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Pärnu sinine

Plum

Prunus L.

‘Polli Viljakas’ is bred at the Polli Horticultural Research Centre by Julius Eslon and Arthur Jaama. The cross ‘Skorospelka Krasnaja’ × ‘Emma Leppermann’ was made in 1951. Application for registration registered 05.03.2004, variety is in DUS (registration trials).

Ripening time: midseason.

Plum is large, oval. The skin is greenish yellow, overspread with dark lilac. The flesh is yellow, firm, juicy, sweet and sour, tasty, freestone.

Tree is medium vigorous, with a spreading crown, a very good bearer, partially self-fertile. Pollinizers are ‘Julius’ and ‘Vilnor’. Winter hardy. Disease resistance is good.

  • Estonian cultivar

  • Accession present in Polli Horticultural Research Centre

  1. Soluble solids content (SSC):
    15.7
    Brix ⁰
  2. Organic acids:
    0.8
    g/100g
  3. Anthocyanin content:
    26.1
    mg/100g
  4. Total polyphenol content:
    88.8
    mg/100g
  5. Dry matter content:
    17.4
    %
  6. pH:
    3.4

  1. Average fruit weight:
    21.39
    g
  2. Fruit firmness:
    5.9
    N
  3. Stone seed proportion of fruit weight:
    10.8
    %

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