頁籤選單縮合
題 名 | 遮光對蓮霧催花之影響=Influence of Shading on Flower Forcing in Wax Apple (Syzygium Samarangense Merr. et Perry) |
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作 者 | 賴榮茂; 楊耀祥; | 書刊名 | 興大園藝 |
卷 期 | 22:2 1997.12[民86.12] |
頁 次 | 頁1-15 |
分類號 | 435.39 |
關鍵詞 | 蓮霧; 遮光; 催花; Wax apple; Shading; Flower forcing; |
語 文 | 中文(Chinese) |
中文摘要 | 為探討催花前的遮光對蓮霧植株生育及生理之反應,本研究以 3 年生盆栽植株, 在 5-7 月間經過修剪培育兩次梢後,在 9-10 月間以遮光率 95 %及 50 %的黑網遮光 40 日,然後進行催花,調查遮光對植株生長及開花之影響。由試驗結果可知強遮光使植株抽梢 數減少,新梢較短,新梢及細根乾物重均顯著減少。有遮光的處理在催花後,萌發的花穗數 及花數顯著地高於不遮光的植株,其新梢數與催花後花數呈負相關。經過遮光處理之枝條、 葉的水分含量均呈現增加。由葉片的組織觀察,遮光後幼梢葉的柵狀組織細胞發育較短,海 綿組織較不發達,葉片的厚度亦減少。幼梢葉之單位葉面積葉綠素的含量隨著遮光程度增加 而增加,而熟梢葉在遮光前後葉綠素含量變化較小。遮光期間葉片光合成速率明顯下降,遮 光結束時枝條的碳水化合物含量減少,全氮含量則有增加的趨勢,該碳氮比與蓮霧之開花並 無直接的關聯。 |
英文摘要 | Off-season production and flower forcing due to shading system was conducted in this study. 3-year-old pot planted was apple with secondary shoots were covered with 50% or 95% shading net for 40 days, and flower forcing treatment then were treated. The results was showed that the 95% shading treatment resulted in decreasing number and length of new shoots, decreased number of fine roots, and their dry matter weight. However, flower cluster and flower number were significantly more than those of low shading and unshading treatments. The water content of shoot, leaf, were increased after shading treatment. In the observation of leaf tissues, cells of palisade tissue were shorter and spongy tissues were less developed than unshading treatment in the new shoot leaves, consequently, the leaves were thinner. The darker luminance was conducted through shading treatment, the higher content of chlorophyll per unit was found in the leaves of new shoots. Photosynthetic rate and photosynthetic production accumulation decreased significantly. Meanwhile, root growth and shooting were inhibited. The data also showed that the carbohydrate content decreased and total nitrogen content had increasing tendency at the end of shading. The C/N ratio had not direct implication for wax apple flowering. |
本系統中英文摘要資訊取自各篇刊載內容。