@article{oai:repository.naro.go.jp:00002090, author = {副島, 淳一 and SOEJIMA, Junichi and 吉田, 義雄 and YOSHIDA, Yoshio and 羽生田, 忠敬 and HANIUDA, Tadayuki and 別所, 英男 and BESSHO, Hideo and 増田, 哲男 and MASUDA, Tetsuo and 小森, 貞男 and KOMORI, Sadao and 土屋, 七郎 and TSUCHIYA, Shichiro and 伊藤, 祐司 and ITO, Yuji and 真田, 哲朗 and SANADA, Tetsuro and 阿部, 和幸 and ABE, Kazuyuki and 樫村, 芳記 and KASHIMURA, Yoshiki and 古藤田, 信博 and KOTODA, Nobuhiro}, journal = {果樹研究所研究報告, Bulletin of the National Institute of Fruit Tree Science}, month = {Mar}, note = {'Kitaro' is a midseason, medium-sized yellow apple (Malus pumila Mill.) released in 1997 by the National Institute of Fruit Tree Science (NIFTS), Ministry of Agriculture, Forestry and Fisheries. 'Kitaro' originated from a cross of 'Fuji' X 'Hatsuaki' made in 1976. The tree was first selected based on its fruit quality and growth habit in 1986, and was subjected to the regional trial as selection number Apple Morioka No.52 from 1989, conducted at 19 research sites in 14 prefectures in Japan. It was ultimately selected and released as 'Kitaro' in 1997, and registered as No.8222 under the Plant Variety Protection and Seed Act of Japan on July 31, 2000. The 'Kitaro' fruit ripens in mid-October at NIFTS in Morioka, about one week earlier than 'Golden Deliciou's. The shape of the fruit is oblate, medium size weighing an average of 266 g at Morioka, a size similar to 'Golden Deliciou's. The fruit has a light greenish-yellow surface color at harvest time with a dull pink blush on the side exposed to intense sunlight and some skin russet mainly around the calyx end and on the cheeks. Cracking at the stem end occasionally occurs to some extent. The fruit quality is excellent, slightly coarse, firm, crisp and juicy. The mean soluble solids content (Brix) and titratable acidity as malic acid in juice are 15.7% and 0.51 g/100 ml, respectively. The fruit has a rather good shelf life and maintains its firmness and crisp texture in refrigerated storage for about 3 months. The tree is medium in vigor, spreading in shape and moderately productive, blooming about 4 days later than 'Fuji'. Since the S-genotype of 'Kitaro' is S_3 S_9, it is cross-compatible with major commercial cultivars. 'Kitaro' has a tendency to preharvest drop and is resistant to Alternaria leaf spot.}, pages = {27--38}, title = {リンゴ新品種 'きたろう'}, volume = {13}, year = {2012}, yomi = {ソエジマ, ジュンイチ and ヨシダ, ヨシオ and ハニウダ, タダユキ and ベッショ, ヒデオ and マスダ, テツオ and コモリ, サダオ and ツチヤ, シチロウ and イトウ, ユウジ and サナダ, テツロウ and アベ, カズユキ and カシムラ, ヨシキ and コトウダ, ノブヒロ} }