文化大學機構典藏 CCUR:Item 987654321/30777
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    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://irlib.pccu.edu.tw/handle/987654321/30777


    题名: Effect of Altitude on Flower Bud Differentiation and Necrosis in 'Shinko' Pears in Subtropical Climates
    作者: Seo, Ho-Jin
    Jin, Young-Ook
    Lee, Chin-Lung
    Roan, Su-Feng
    Chen, Iou-Zen
    贡献者: Dept Hort & Biotechnol
    关键词: chilling requirement
    Pyrus pyrifolia
    scion
    top-grafting
    日期: 2015-02
    上传时间: 2015-10-30 14:37:37 (UTC+8)
    摘要: Time-specific responses of flower bud differentiation were investigated in 'Shinko' (Pyrus pyrifolia Nakai) pear grown at different altitudes from July through December 2013 to determine their suitability as scions in a top-grafting system. Flower bud initiation and bud necrosis were monitored on each of three sections of one-year-old shoots: terminal, middle, and basal. Flower bud differentiation started in September in the highlands of the Lishan area, and in July in the lowlands of the Zhoulan area. In Lishan, flower bud differentiation was higher in the middle and basal segments; during leaf fall, however, flower bud differentiation occurred rapidly in the terminal segment In Zhoulan, flower buds began to differentiate from the terminal section of the shoot, and severe flower bud necrosis was noted. In July, flower buds developed normally; however, in early August, some of the buds at the basal segment showed browning. During leaf fall, some flower buds showed symptoms of necrosis with rapid and complete browning. Flower bud necrosis began at the basal segment and progressed rapidly towards middle and terminal sections. Before leaf fall, flower buds fell off when scales swelled. The terminal and middle parts of the current-year shoots, with some flower buds, collected in October or later from the Lishan area could be used as scions for top-grafting of 'Shinko' pear. Each grafting scion was a 3-5 cm shoot with one flower bud. These results suggest that scions from the terminal and middle segments of stems of 'Shinko' pear from the Lishan area can be used as scions whereas those from Zhoulan area show necrosis and might not be suitable as scions.
    關聯: KOREAN JOURNAL OF HORTICULTURAL SCIENCE & TECHNOLOGY 卷: 33 期: 1 頁碼: 18-23
    显示于类别:[園藝暨生物技術學系] 期刊論文

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