@article{oai:repository.naro.go.jp:00002125, author = {山田, 昌彦 and YAMADA, Masahiko and 佐藤, 明彦 and SATO, Akihiko and 山根, 弘康 and YAMANE, Hiroyasu and 三谷, 宣仁 and MITANI, Nobuhito and 岩波, 宏 and IWANAMI, Hiroshi and 白石, 美樹夫 and SHIRAISHI, Mikio and 平川, 信之 and HIRAKAWA, Nobuyuki and 上野, 俊人 and UENO, Toshihito and 河野, 淳 and KONO, Atsushi and 吉岡, 美加乃 and YOSHIOKA, Mikano and 中島, 育子 and NAKAJIMA, Ikuko}, journal = {果樹研究所研究報告, Bulletin of the National Institute of Fruit Tree Science}, month = {Sep}, note = {Taigetsu' is a pollination variant astringent (PVA) type of Japanese persimmon (Diospyros kaki Thunb.) cultivar released by National Agriculture and Food Research Organization Institute of Fruit Tree Science (NIFTS), Japan, in 2007. 'Taigetsu' resulted from the cross of 'Kurokuma'× 'Taishu'. The clone was initially selected and designated as Kaki Akitsu-20, and was tested at 24 locations in a national trial. It was ultimately selected and released as 'Taigetsu', and registered as No.17492 under the Plant Variety Protection and Seed Act of Japan in 2009. 'Taigetsu' is a mid-ripening cultivar, and its fruit ripens in early November, comparable to 'Hiratanenashi' and 'Matsumotowase-Fuyu' at NIFTS Akitsu. Its fruit is moderately flat-shaped, weighing an average of 459 g at NIFTS Akitsu, which is 1.8 times of 'Hiratanenashi' fruit. The skin color is yellowish orange at harvest time. The flesh is soft, moderately coarse and very juicy. Flesh firmness is 0.9kg, which is comparable to 'Hiratanenashi' and lower than 'Matsumotowase-Fuyu'. The soluble solids content in juice after removing astringency averages 15.4%, which is comparable to 'Hiratanenashi'. 'Taigetsu' can be commercially grown in 'Hiratanenashi' production areas. Fruit cracking at the calyx or stylar end is rare. However, shallow concentric cracks on the fruit skin are likely to occur in a considerable percentage of the fruit. The percent fruit with skin darkening including those cracks averaged around 44% as compared with 7% in 'Hiratanenashi' in the national trial. Shelf life of 'Taigetsu' fruit after the carbon dioxide gas treatment removing astringency averaged 11 days at ambient temperature in the national trial, which was comparable to that in 'Hiratanenashi'. The tree is vigorous and very productive. It is spreading in shape. It easily produced many female flowers every year, and very few male flowers in the trials. Parthenocarpy in 'Taigetsu' is high, and fruit drop in the early fruit-developmental stage in June and July was rare for trees subjected to flower thinning at around 13 leaves/flower ratio. 'Taigetsu' yield was estimated to be 30 metric tons/ha or more.}, pages = {25--38}, title = {カキ新品種 '太月'}, volume = {14}, year = {2012}, yomi = {ヤマダ, マサヒコ and サトウ, アキヒコ and ヤマネ, ヒロヤス and ミタニ, ノブヒト and イワナミ, ヒロシ and シライシ, ミキオ and ヒラカワ, ノブユキ and ウエノ, トシヒト and コウノ, アツシ and ヨシオカ, ミカノ and ナカジマ, イクコ} }