頁籤選單縮合
題名 | 茶樹採摘芽葉量測色澤數值化之建立(1)、建立茶樹各品種芽葉色澤色差計數值的基本資料=Establishment of Numerical Measurement Method for Plucking Shoot Color in the Tea Plant,(Ⅰ): Establishment of Numerical Databank for Bud and Leaf by Color Difference Measurement |
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作者姓名(中文) | 范宏杰; 鄭混元; 古明萱; | 書刊名 | 臺灣茶業研究彙報 |
卷期 | 25 民95.11 |
頁次 | 頁85-100 |
分類號 | 434.815 |
關鍵詞 | 茶樹; 芽葉色澤; 色相角; 色差計; Tea tree; Color of bud and leaf; Hue; Color difference meter; |
語文 | 中文(Chinese) |
中文摘要 | 建立茶樹品種芽葉色澤之數值資料庫,並作歸類分群。由歸類分群中篩選不同葉片色澤之茶樹品種,品種園編號1~121號(實際117個)品種之一心三葉茶芽,經利用色差計測量,以第三芽葉色澤區分為四個色系區域:第一區段為深綠色系、第二區段為綠色色系、第三區段為淺綠色系、第四區段為黃綠色系。各區域品種數因季節性略有差異。茶葉芽葉色澤綠色強度,隨生育期進展而增強;葉片之葉綠素總量和葉綠素計讀值均隨生育期進展亦上升趨勢。SPAD(Soil-Plant Analyses Development unit)讀值與色相角hue(H*(ab))呈正相關,相關係數為0.94。以葉綠素計及色差計測得的CMR(SPAD讀值)亦提高、a*值更偏(負)綠色值,色相角越大。 |
英文摘要 | In this study numerical databank for tea bud and leaf color was set up for different tea cultivars. Tea cultivars were sorted and divided into groups to screen different blades color. Color difference measurement was conducted on the three-leaf bud of tea cultivars in Cultivar Field No. 1~121 (actually 117). The best position of measurement was the down-left of the third leaf. There were four parts of the bud color. The first was deep-green, part was green, third part was light-green, and the fourth part was yellow-green. There is a slight difference according to the region's cultivars and season. The color of tea bud became greener as it grew. The content of chlorophyll also increased. The SPAD value increased with the development of tea bud. SPAD value and Hue angle (H*(ab)) presented a positive correlation. Correlation coefficient was 0.94. The values of SPAD and color difference meter were high. The a* value was more negative, and the color was dark green. So the hue angle was nearing 130 degrees. |
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