A roof module of a motor vehicle with at least one securing device for a roof carrier system, the securing device being formed in one piece with the roof module. Methods for producing a maize plant that comprise crossing maize variety PH17PC with another maize plant. A second additional flow of the fuel is vaporized and delivered to the combustor as a vapor. A movement device enables movement of the detector diaphragm over the detector in the longitudinal direction of the detector.