Evaluation System of Petal Color for Practical Classification of Cultivars of Flowering Lotus.

概要

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Flower-color evaluation systems for practical classification of the cultivars of flowering lotus (Nelumbo spp.) were investigated. The determination of the flower color was carried out 2 days after flowering using a color-meter for 3-5 flowers of each cultivar. Considerable differences were observed in the values of a* and b* in the L* a* b* color system among the cultivars. It was necessary that 5 petals in every flower be piled up to reduce the values of the coefficient of variation obtained measured by the color-meter. Some of the cultivars in the blotch-color group and the nail red group, which showed a non-uniform color distribution, actually deviated from the respective groups. Cluster analysis was carried out for the following 6 factors; values of a* and b* in the L* a* b* color system, deviation of distribution of anthocyanin in the petals, degree of distinctiveness of the streaks, number of petals of a flower and flower size. Ninety-five cultivars were divided into the following 7 color groups; yellow, white, light yellow, blotched, nail red, pink, and red.
日本熱帯農業学会の論文