大岩桐花瓣之顏色與斑點特徵量化研究

Abstract

本研究量化大岩桐雜交系腹側花瓣之顏色與斑點圖案。利用影像處理量化三個顏色特徵（感興趣區域比率、感興趣區域顏色、顏色漸變）與五個斑點特徵（斑點數量、斑點密度、斑點面積比率、斑點顏色、背景顏色），並分析特徵中之變異及不同特徵間之相關性。研究結果顯示大這些岩桐腹側花瓣的顏色與斑點特徵中存在明顯的變異。相較於傳統的特徵調查方法，本研究提出之方法可客觀並準確地量化大岩桐花朵之顏色與紋理特徵。因此，此方法可應用於新品種花卉之性狀檢定。

This study examined the color and spot patterns for the ventral petals of a cross line in Sinningia speciosa. The second generation individuals of the cross line exhibited phenotypic segregation in floral color and spot patterns. Three color traits (color region ratio, region of interest color, and color gradient) and five spot traits (spot quantity, spot density, spot area ratio, spot color, and background color) were defined and quantified using image processing techniques. The variation in the traits and the correlations between the traits were also investigated. The results indicated a considerable degree of variation among the traits. The proposed approach can quantify petal traits more objectively and precisely compared with conventional naked examination. Thus, it can be used for applications, such as new flower variety determination, that require precise trait quantification.