The present invention is directed to a collar for a multi-color light source that is able to convey not only color but also spatial information to a user to permit the colorblind user to distinguish between the different settings of the light source. The invention thus relates to the plants, seeds and tissue cultures of the variety CH417272, and to methods for producing a corn plant produced by crossing a corn plant of variety CH417272 with itself or with another corn plant, such as a plant of another variety. The mixture of ULO feed and superheated hydrocarbons is charged to a vacuum column, producing an overhead vapor free of unstable additives and a residual fraction, containing additives. The method and system is Web-based and utilizes conventional browser and spreadsheet technology to achieve collaborative exchanges of information on an enterprise-wide basis.