Reikou' is a new medium-ripening citrus cultivar released by the National Institute of Fruit Tree Science (NIFTS), National Agriculture and Food Research Organization (NARO). 'Reikou' originated from a cross between 'KyEn No.5 ' ('Kiyomi' tangor x 'Encore' mandarin) and 'Murcott' tangor made in 1984. The original seedling was originally selected as a promising one in 1996, and was recognized as a superior strain after going through local adaptability tests. It was registered as 'Tangor Norin No.9' on January 26, 2004 and also registered as No.13542 under the Seed and Seedlings Law of Japan on December 7, 2005. The tree vigor is intermediate and its growth habit is between upright and spreading. The fruit is about 210 g in weight and the shape is oblate to compressed. The rind is strong reddish-orange in color, about 2-3 mm thick, smooth and easily peelable. The fruit ripens in mid to late January at Kuchinotsu, Nagasaki, Japan. The soluble solid content in juice is relatively high (12-13 %) and acid content is about 1.20 g/100 mL at the time of ripening. The flesh is very tender and juicy. This cultivar produces no pollen due to male sterility under open-field culture. However, in the case of being pollinated with viable pollen of other cultivars, the fruit contains quite a number of seeds. For the production of seedless fruit, it is vital to ensure that this cultivar is not cultivated under mixed planting with potential pollinizers.
雑誌名
果樹研究所研究報告
雑誌名(英)
Bulletin of the National Institute of Fruit Tree Science
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カンキツ新品種 '麗紅'
nifs_report_No8p15-23p
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