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題 名 | 晶圓梨二次催芽新梢芽體分化觀察之研究=Observation on the Autumn Shoot Bud Differentiation of 'Full-Lucky' Pear after Twice-Bud Forcing |
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作 者 | 徐錦木; 張林仁; | 書刊名 | 臺中區農業改良場研究彙報 |
卷 期 | 126 2015.03[民104.03] |
頁 次 | 頁1-10 |
分類號 | 435.312 |
關鍵詞 | 二次催芽; 花芽分化; 晶圓梨; Twice bud forcing; Flower bud differentiation; Full-Lucky pear; |
語 文 | 中文(Chinese) |
中文摘要 | 栽培在彰化縣大村鄉臺中區農業改良場實驗田12年生晶圓梨,在2013年9月5日全株噴施0.8%之氰胺,噴施後5~7天芽體重新萌動,萌芽後8~13天盛花,萌發的新梢大多形成短梢,於萌芽後20天停梢,停梢後頂芽及腋芽開始膨大。外部鱗片初期為綠色,隨發育過程由頂端開始向基部褐化,萌芽後76天鱗片大部份已褐化僅存底部殘留綠色,切片觀察莖頂生長點突出,已進入花芽分化期。萌芽後90天芽體於解剖顯微鏡下已見花序軸形成,萌芽後104天芽體固定切片可分辨雌、雄蕊構造,已完成花芽分化。此次實驗二次催芽所萌新梢,在短日情形亦能進行花芽分化,顯示花芽分化和養分蓄積有關。 |
英文摘要 | The 12-year-old 'Full-Lucky' pear trees in Taichung DARES were sprayed with 0.8% hydrogen cyanamide in 2013/09/05 to force inducing bud-break. The buds sprouted uniformly in 5-7 days after spraying (DAS), bloomed at 8-13 days after sprouted and the elongation of new shoots consist of 3-10 leaves in 20 days after bud-break. The apical meristem began to swell and to differentiate flower buds at 76 days, the inflorescence began to form at 90 days, and the pistil and stamen formed at 104 days. The experiment indicated that shoots developed in autumn can also differentiate flower buds under short-day conditions. We postulate that bud differentiation is related to the nutrient accumulation. |
本系統中英文摘要資訊取自各篇刊載內容。