著者 |
齋藤, 寿広
壽, 和夫
澤村, 豊
阿部, 和幸
寺井, 理治
正田, 守幸
髙田, 教臣
佐藤, 義彦
平林, 利郎
佐藤, 明彦
西端, 豊英
樫村, 芳記
小園, 照雄
福田, 博之
木原, 武士
鈴木, 勝征
内田, 誠
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内容記述 |
'porotan' is an early maturing and easy pellicle peeling new cultivar of Japanese chestnut (Castanea crenarta Sieb. et Zucc.) released in 2005 by the National Institute of Fruit Tree Science, National Agriculture and Food Research Organization. It originated from the cross between '550-40'[290-5 ('Moriwase' × 'Kairyoutoyotama') × 'Kunimi'] and 'Tanzawa' in 1991. It was selected in 1999, and subjected to the 6th regional adaptability test on chestnut as Kuri Tsukuba 36 from 2000, conducted at 15 experimental stations in 14 prefectures in Japan. It was designated and registered as 'Kuri Norin 8' on October 4, 2006, and also registered as No.15658 under the Seed and Seedlings Law of Japan on October 22, 2007. The tree vigor is medium to vigorous and it has a medium to upright form. The shoot is long and thick, the same as 'Kunimi'. It exhibits a large amount of female inflorescence, and its yield is fairly high, the same as 'Kunimi'. It ripens around early to mid September, at the same time as 'Kunimi'. The burr is flat globular in shape, as large as 'Kunimi'. The rate of polyembryony is relatively high and pericarp bursting is low. The nut is rounded triangular in shape and the weight is about 30g on average, a little heavier than 'Tanzawa'. The specific gravity is higher than 'Tanzawa' and 'Kunimi'. The kernel is yellow in color, rich in sweetness and flavor and its texture is mealy, and has good eating quality. The pellicle is easily peeled like Chinese chestnut (Castanea mollisima BL.) in roasted nuts. |