Abstract: This invention relates generally to the production of maize, commonly known in the United States as corn, and more specifically to hybrid corn plants with certain advantageous phenotypes resulting from interactions of the haploid genetic contributions of inbred parental lines. This invention relates to the hybrid genetic complement, the expression of which produces these phenotypes and to the complement as housed in seeds and tissues, in particular, those capable of producing or regenerating the hybrid plants either in vivo or in vitro. An aspect of this invention, hybrid DK743, is characterized by many advantageous phenotypic traits including superior yield and staygreen. It has characteristic restriction fragment length polymorphism (RFLP) and isozyme profiles.

Abstract: Novel F1 hybrid corn plants DK 672, novel seeds of the hybrid, seeds produced by cultivation of the hybrid, cells which upon growth and differentiation produce the novel hybrid and a method to produce the novel hybrid are disclosed.

Abstract: This invention relates to an inbred line of corn having the designation HBA1, seeds produced by plants of the inbred line HBA1, cells which upon growth and differentiation produce the inbred line HBA1, hybrid corn seed produced by crossing the inbred line HBA1 with another corn line and a process for the production of hybrid corn seed using the inbred line HBA1.