@article{oai:repository.naro.go.jp:00007191,
 author = {池谷, 祐幸 and IKETANI, Hiroyuki and 間瀬, 誠子 and MASE, Nobuko and 佐藤, 義彦 and SATO, Yoshihiko},
 journal = {植物遺伝資源探索導入調査報告書, Annual Report on Exploration and Introduction of Plant Genetic Resources},
 month = {Nov},
 note = {Wild genetic resources including true indigenous populations of pear and apple species in Northern Tohoku (Aomori, Akita and Iwate prefectures) were explored and collected. A total of 33 accessions of pear and apple genetic resources, containing 17 of Pyrus ussuriensis, 10 of Malus baccata var. mandshurica, 4 of M. toringo, and 2 of M. prunifolia were collected. In Pyrus ussuriensis, indigenous type accessions were collected in highland area of the Kitakami Mountains (Iwate Pref.), where true wild populations remain. Escaped type accessions of this species were colleted in Aomori and Akita Pref., as well as in Iwate Pref. In Malus , accessions of M. baccata and M. toringo were collected from wild populations. A putative escaped population of M. prunifolia was discovered at Goshogawara, Aomori Pref.},
 pages = {13--21},
 title = {北東北地方におけるナシ属・リンゴ属の探索・収集},
 volume = {22},
 year = {2006},
 yomi = {イケタニ, ヒロユキ and マセ, ノブコ and サトウ, ヨシヒコ}
}