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カンキツ新品種 '西南のひかり' New Citrus Cultivar 'Seinannohikari' 吉岡, 照高 ヨシオカ, テルタカ YOSHIOKA, Terutaka 松本, 亮司 マツモト, リョウジ MATSUMOTO, Ryoji 國賀, 武 クニガ, タケシ KUNIGA, Takeshi 山本, 雅史 ヤマモト, マサシ YAMAMOTO, Masashi 高原, 利雄 タカハラ, トシオ TAKAHARA, Toshio 吉永, 勝一 ヨシナガ, カツイチ YOSHINAGA, Katsuichi 山田, 彬雄 ヤマダ, ヨシオ YAMADA, Yoshio 三谷, 宣仁 ミタニ, ノブヒト MITANI, Nobuhito 奥代, 直巳 オクダイ, ナオミ OKUDAI, Naomi 稗圃, 直史 ヒエハタ, ナオフミ HIEHATA, Naofumi 池宮, 秀和 イケミヤ, ヒデカズ IKEMIYA, Hidekazu 今井, 篤 イマイ, アツシ IMAI, Atsushi 深町, 浩 フカマチ, ヒロシ FUKAMACHI, Hiroshi 内原, 茂 ウチハラ, シゲル UCHIHARA, Shigeru 野中, 圭介 ノナカ, ケイスケ NONAKA, Keisuke Citrus mandarin early-ripening fruit breeding new cultivar β-cryptoxanthin Citrus mandarin early-ripening fruit breeding new cultivar β-cryptoxanthin Seinannohikari' is a new early-ripening citrus (Citrus spp.) cultivar released by the National Agriculture and Food Research Organization, Institute of Fruit Tree Science (NIFTS). It originated from a cross between EnOw No. 21 ['Encore' (C. nobilis ×C. deliciosa) × 'Okitsu wase' (C. unshiu)] and 'Youkou' ['Kiyomi' (Citrus sp.) × 'Nakano No.3' (C. reticulata)] that was performed in 1988 at the Kuchinotsu Branch Fruit Tree Research Station. It was initially selected in 1995, when it was designated Kankitsu Kuchinotsu No.26, and starting in 1996, was included in the 8th National Citrus Selection Trial, which was conducted at 28 experimental stations in Japan. It was ultimately selected in July 2006, and released as 'Seinannohikari', which was authorized under the name Mikan Norin No.16 in March 2008, and subsequently registered as new variety with No.17969 under the Plant Variety Protection and Seed Act of Japan on 19 March 2009. The tree has weak to medium vigor with a shape of intermediate between upright and spreading. The fruit weights about 180 g and has compressed shape. The rind is dark orange, about 2 mm thick, and easily peelable. The fruit surface is intermediate between smooth and rough. The fruit ripens in early- to mid-December at Minamishimabara, Nagasaki, Japan. The soluble solids content in juice is high (12 to 13％) and the acidity decreases to less than 1.0％ in the ripe fruit. The flesh is very soft and juicy with distinctive flavor. β-cryptoxanthin content in the flesh was high (2.76 mg/100g fresh weight [FW]). The fruit usually contains a few seeds. Field results suggest that the cultivar should be grown in fertile soil because the tree is not vigorous. 独立行政法人 農業・食品産業技術総合研究機構 果樹研究所 2015-03-20 jpn departmental bulletin paper VoR https://doi.org/10.24514/00002165 https://repository.naro.go.jp/records/2259 10.24514/00002165 10.24514/00002165 1347-3549 果樹研究所研究報告 Bulletin of the National Institute of Fruit Tree Science 19 11 22 https://repository.naro.go.jp/record/2259/files/nifs_report_No19p11-22p.pdf application/pdf 1.2 MB 2019-03-20