Color Analysis of Flower Organs of New Malus crabapple Cultivars
Taking 100 new cultivars of Malus crabapple as the test materials,the color pedigrees of different floral organs of 100 new cultivars were studied by digital analysis method,and the dynamic analysis of flower color among different flowering stages was carried out,in order to establish the color classification system of floral organs of new cultivars of flowering crabapple and excavate the color change rule of each floral organ at different flowering stages.The results showed that the ISCC-NBS color name representation method divided the color of each flower organs of the new cultivars of Malus crabapple into 9 color series(white,red,purple pink,red purple,yellow green,yellow,orange yellow,brown and red green gradient color series),which better realized the reduction and classification of the color of the flower organs of 100 new cultivars of Malus crabapple.The color of the main flower organs(petals,style,filaments)of each cultivar in the flowering process(large bud stage to full flowering stage)showed regular spatial distribution characteristics and periodic change trends in the three dimensions of lightness(L),saturation(S)and hue angle(H),that was,most new cultivars of Malus crabapple had the phenomenon of flower organ color desalination.The L value of each flower organ of new cultivars continued to rise and the S value continued to decline,the weight of cultivars with high L value and low S value increased significantly.The H value of petals and filaments followed the downward trend of clockwise rotation,while the H value of style followed the upward trend of counterclockwise rotation.According to the weight of different color cultivars,the fluctuation of red color hue was the largest.In summary,the color pedigree of different flower organs of crabapple was constructed by digital analysis.The combination of digital color quantification and ISCC-NBS color name representation could more accurately define and classify the flower color of Malus crabapple,and provide reference for new cultivar resource evaluation and cultivar breeding.
Malus crabapplenew cultivarsflower color phenotyeISCC-NBS method of designating colorsHSL color space