茶叶科学2017，Vol.37Issue(2)：160-166,7.
茶树叶片精准测色装置构建及在稀有种质鉴别中的应用
Establishment of Precise Color Measuring Device for Tea (Camellia sinesis L.) Leaf and Its Application in Identification of Rare Germplasm
摘要
Abstract
A tea leaf color measurement system was established by using the scanner, color picker tool ColorPix and RGB color rules. The value of color difference was converted into CIELab color system parameters by the online tool ColorHexa and then the leaf colors of Typical Green, Yellow and Purple tea Germplasms were comparative analyzed through circular direction and radial direction methods. The results showed that the single leaf multi - point repeat value in radial measurement and the mid-ring position value in circular method had similar leaf color characterization. The 120 tea germplasms were randomly selected and measured for the brightness L* and chromatic components a* and b*. The values of lightness L* and color difference a* and b* between the two methods were significantly and positively correlated. However, when the facilitation and the efficiency of analysis were taken into consideration, it is better to use the color value in the mid-ring position by circular direction method. When the leaf color values of 120 germplasms were measured in the mid-ring position to draw the three-dimensional scatter plots, the mauve color group was effectively separated from the purple germplasms, which further proved the efficiency of the method to accurately identify specific leaf color germplasm.关键词
茶树/叶色/测色装置/定量描述Key words
tea plant/leaf color/color measurement device/quantitative description分类
农业科技引用本文复制引用
孔祥瑞,杨军,王让剑..茶树叶片精准测色装置构建及在稀有种质鉴别中的应用[J].茶叶科学,2017,37(2):160-166,7.基金项目
福建省自然科学基金(2016J01118)、福建省省属公益类科研院所专项(2015R1012-7) （2016J01118）
