頁籤選單縮合
題名 | 遮光對蓮霧成樹催花效果之影響=Influence of Shading on Flower Forcing Effect in Adult Wax Apple Trees |
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作者 | 賴榮茂; 楊耀祥; Lai, Rong-mao; Yang, Yau-shiang; |
期刊 | 高雄區農業改良場研究彙報 |
出版日期 | 19991200 |
卷期 | 11:1 1999.12[民88.12] |
頁次 | 頁1-13 |
分類號 | 435.39 |
語文 | chi |
關鍵詞 | 蓮霧; 遮光; 產期調節; 催花; Wax apple; Shading; Forcing culture; Flower forcing; |
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12年生田間植株,在經過修剪培育2次梢後,以遮光率95%及60%的黑網遮光40日,然後進行催花,以調查比較遮光後植株生長及花芽萌發的數量。由試驗結果可知遮光處理可抑制抽梢,其中強遮光使植株抽梢數減少,且新梢較短。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連。 |
英文摘要 | The growth and physiological responses of the off-season production and flower forcing due to shading system was conducted in this study. Wax apple of 12-year-old with secondary shoots were covered with 60% or 95% shading net for 40 days, and flower forcing treatment were treated afterwards. The results showed that the 95% shading treatment decreased number , length and dry matter weight, of new shoots. However, flower cluster and flower number were significantly more than those of low shading and unshading treatments. The water content of shoot and leaf increased after shading treatment. From the observation of leaf tissues with the shading treatment, cells of palisade tissue were shorter and spongy tissues were less developed 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 the tendency of decreasing the carbohydrate content and increasing total nitrogen content at the end of shading treatment. The low C/N ratio had no direct implication in wax apple flowering. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。