@article{oai:nodai.repo.nii.ac.jp:00000131, author = {石川, 一憲 and 高橋 久光 and 加藤 弘昭 and 池田 富喜夫 and Ishikawa, Kazunori and Takahashi Hisamitsu and Kato Hiroaki and Ikeda Fukio}, issue = {3}, month = {2016-04-20}, note = {ストレプトマイシン散布で無核化した四倍体ブドウ`藤稔'と`巨峰'の房形,軸茎生長,果実肥大を改善するために,満開時のGA処理濃度の検討を行った。得られた主な点はつぎのようであった。1)良品質の果房生産には,満開時に2.5から25ppm濃度のGA散布が有効であった。この作業を省くと,両品種とも主軸長,支梗長などの果粒を支える軸生長が不充分であり,また,果粒の肥大がやや小さかった。また,この反応は第1果房でも第2果房でも同様であった。2)四倍体ブドウの安定した無核化生産には,(1) 無核化誘発のための満開前9日またはそれ以前にSM 200ppm処理を行い,果房整形し,つぎに (2) 満開時に2.5~25ppmのGA処理を行い,さらに (3) 果実の肥大促進を図るため満開後10日目にGA 25ppmの後処理が必要であった。そして,(1) と(2) の浸漬処理は,噴霧器による散布処理に代替えでき,薬剤処理作業を簡素化できた。, Gibberellin (GA) treatment at full bloom of seedless tetraploid grapes cv. 'Fujiminori' and 'Kyoho' induced by streptomycin (SM) was conducted in order to improve the shape of bunch, rachiseo growth, pedicel growth and berries enlargement. 1) GA spraying at full bloom at concentrations of 2.5 to 25ppm was effective to induce a compact shape of bunch. In the case of non-spraying of GA, shorter pedicels, weak stems and less fruiting were detected. There were no differences in response to GA at full bloom between spraying and dipping treatments, and between clusters of 'Primary' and 'Secondary'. 2) For the stable production of seedless tetraploid grapes, it is necessary to use growth regulators at least three times. The first treatment of 200ppm SM was conducted at 9 days or more before full bloom in order to induce complete seedless berries. The second treatment of 2.5 to 25ppm GA was conducted at full bloom in order to promote rachiseo and pedicel growth. The third treatment of 25ppm GA was conducted at 10 days after full bloom in order to enlarge berries size. Dipping method for the first and second ones could take the place of spraying method by spray machines., E, 1, KJ00004074150, 論文, Article}, pages = {149--153}, title = {ストレプトマイシンによる無核四倍体ブドウ果実の良品質な房作りのための満開時ジベレリン散布の効果}, volume = {46}, year = {}, yomi = {イシカワ, カズノリ and タカハシ, ヒサミツ and カトウ, ヒロアキ and イケダ, フキオ} }