There is provided an optical recording method for directing a recording pulse train to an optical disc medium to form marks thereon and for recording information as information about the edge positions of said marks and the spaces between marks, the recording pulse train having been created by modulating laser light into plural power levels. Provided by the invention are the seeds, plants and derivatives of the wheat cultivar XY06-852. Then, the keyword contained in the speech utterance are re-recognized using a phrase including the keyword. An ultraviolet light-absorbing agent is present in any portion from the surface of the white inorganic particle to surface of the organic pigment coat.