Abstract: Provided is a method for producing lilies containing a blue pigment (delphinidin) in the petals thereof by introducing a foreign gene into lilies. The method pertaining to the present invention is a method for producing lilies containing delphinidin in the petals thereof, including the following steps: introducing, into a lily, a F3?5?H gene derived from a campanula and comprising a nucleotide sequence encoding a peptide having flavonoid 3?5?-hydroxylase (F3?5?H) activity, such as a nucleotide sequence represented by SEQ ID NO: 1 or SEQ ID NO: 11; while also introducing a F3?H gene fragment derived from a lily and comprising a nucleotide sequence encoding a peptide having flavonoid 3?-hydroxylase activity, such as a nucleotide sequence represented by SEQ ID NO: 3 or SEQ ID NO: 16; and inhibiting the expression of endogenous F3?H expression, which acts on cyanidin synthesis in lily petals, while the F3?5?H gene that has been introduced acts to cause the synthesis of delphinidin.

Abstract: Herein disclosed is a method for mutual transformation between the data of a light-source color on a color CRT monitor and the light-source color. The transformation can be performed by using any of the following two formulas:R.sub.c (.lambda.)=[I.sub.c (.lambda.)/I.sub.g (.lambda.)]R.sub.G (.lambda.);and ##EQU1## wherein: Both R.sub.c (.lambda.), and X, Y and Z express the non-luminous object color data which are designated at a spectral reflectance factor and the CIE tristimulas values, respectively; andBoth I.sub.c (.lambda.), and R.sub.c, G.sub.c and B.sub.c express the light-source color data, which are designated at a spectral distribution and the RGB video drive signals, respectively.Unknown parameters R.sub.G (.lambda.) and I.sub.G (.lambda.), and K.sub.R, K.sub.G and K.sub.