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モモ 'あかつき'と各種台木との中間台木法による接ぎ木親和性の早期検定 Screening of Graft-compatibility between 'Akatsuki' and Several Interstocks of Related Species and Interspecific Hybrids Grafted on Peach Seedlings 山口, 正己 ヤマグチ, マサミ YAMAGUCHI, Masami 土師, 岳 ハジ, タカシ HAJI, Takashi 八重垣, 英明 ヤエガキ, ヒデアキ YAEGAKI, Hideaki 中野, 幹夫 ナカノ, ミキオ NAKANO, Mikio graft-compatibility interstock interspecific hybrid Prunus persica screening graft-compatibility interstock interspecific hybrid Prunus persica screening Ten species of Genus Prunus include 33 cultivars and selections, 28 selections of interspecific hybrid were tested to estimate the graft compatibility to 'Akatsuki'peach using for interstock on peach seedling in nursery. The scion growth, i.e., tree height, rootstock and interstock circumference, cessation period of shoot growth and degree of leaf curl differed by interstocks. The correlation coefficient between tree height versus cessation period of shoot growth, degree and period of leaf curl, was high and significant. Degree of swelling at upper graft union showed significant correlation with tree height. These results suggested that the leaf curl is most reliable indicater of graft-incompatibility. Prunus cerasifera, P. armeniaca, Marianna plum, P. mume were determined graft-incompatible with 'Akatsuki'scion. In P. tomentosa interstocks, the tree height and degree of leaf curl varied with selections, and three selections showed graft-compatible to 'Akatsuki'. Hybrids between species belong to subgenus Amygdalus showed highly graft-compatible to'Akatsuki', whereas those between species of subgenus Prunophora showed graft-incompatible to 'Akatsuki'. Hybrids between peach and myrobalan plum demonstrated the wide range of graft-compatibilities, from high to very low, and of tree height. Thus, these hybrids with high graft-compatiblity were expected breeding materials of new peach rootstocks with dwarfness and tolerance of water logging. The interstock method is thought to be useful for the screening of the graft-compatibility of seedlings at the juvenile stage. 独立行政法人 農業・生物系特定産業技術研究機構 果樹研究所 2004-03-01 jpn departmental bulletin paper VoR https://doi.org/10.24514/00001778 https://repository.naro.go.jp/records/1832 10.24514/00001778 10.24514/00001778 1347-3549 果樹研究所研究報告 Bulletin of the National Institute of Fruit Tree Science 3 67 76 https://repository.naro.go.jp/record/1832/files/nifs_report_No3p67-76p.pdf application/pdf 60.6 kB 2019-03-19