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Freezing resistance and behavior of winter buds and canes of wine grapes cultivated in northern Japan

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Title: Freezing resistance and behavior of winter buds and canes of wine grapes cultivated in northern Japan
Authors: Horiuchi, Reiko Browse this author
Arakawa, Keita Browse this author →KAKEN DB
Kasuga, Jun Browse this author
Suzuki, Takashi Browse this author
Jitsuyama, Yutaka Browse this author →KAKEN DB
Keywords: Apical meristem
Freezing resistance
Ice formative temperature
Leaf primordia
Seasonal change
Water translocation
Wine grapes
Issue Date: Aug-2021
Publisher: Elsevier
Journal Title: Cryobiology
Volume: 101
Start Page: 44
End Page: 51
Publisher DOI: 10.1016/j.cryobiol.2021.06.004
Abstract: In high-latitude regions, the cold hardiness of buds and canes of grapevine is important for budburst time and yield in the next season. The freezing resistance of buds and canes sampled from six wine grapes currently cultivated in Hokkaido, Japan, all of them grown from autumn to winter, was investigated. A significant difference between the cultivars in their freezing resistance was detected in the buds harvested in winter. In addition, outstanding differences in the lower temperature exotherms (LTE) related to the supercooling ability of tissue cells happened in the winter buds, and there is a close relationship between freezing resistance and LTE detected in the winter buds. This suggests that the supercooling ability of tissue cells in winter buds is strongly related to the freezing resistance. However, detailed electron microscopy exposed that the differences in freezing resistance among cultivars appeared in freezing behavior of leaf primordium rather than apical meristem. This indicated that as the water mobility from the bud apical meristem to the spaces around the cane phloem progressed, the slightly dehydrated cells improved the supercooling ability and increased the freezing resistance.
Rights: © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Type: article (author version)
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 実山 豊

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