芳香性イチゴ10倍体種間雑種品種 '桃薫' の育成とその特性

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  • 'Tokun' : a New Aromatic Decaploid Interspecific Hybrid Strawberry
  • ホウコウセイ イチゴ 10バイタイシュ カン ザッシュ ヒンシュ トウ クン ノ イクセイ ト ソノ トクセイ

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'Tokun' was developed from a cross between synthetic amphidecaploids K 58 N 7-21 ('Karen berry'×Fragaria nilgerrensis) as the seed parent and 'Kurume IH No.1' ('Toyonoka'×F. nilgerrensis) as the pollen parent at the National Institute of Vegetable and Tea Science, Japan. 'Tokun' is vigorous and larger than 'Kurume IH No.1', produces a lot of flowers on upright stalks, and sets over 20 fruits in each long cluster. Because 'Tokun' ripens late, harvest is delayed under forcing culture. The yield per plant is higher than that of 'Toyonoka'. Although the apical fruit is very large, fruits gradually become smaller down the cluster. The average marketable fruit weight is similar to that of 'Toyonoka'. The pale yellowish-orange fruit of 'Tokun' is a short cone with excellent skin gloss and a superior overall appearance. The fruit is soft, so the shipping quality is poor, but the keeping quality is as good as that of 'Toyonoka'. The fruit has aroma components of caramel, coconuts, and peach. 'Tokun' will contribute to new development and expansion of demand for strawberries.

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