Hybrid Sorghum Product Development and Production
There are many moving parts involved in developing and taking a new commercial hybrid to market. Sorghum [Sorghum bicolor (L.) Moench] hybrid development involves development of parental lines based on a cytoplasmic male sterile system including the pollen parent (R-line) and seed parents (A- and B-lines). New parental lines are developed by recombining existing elite parental lines to create new breeding populations or by adding specific traits of interest to existing parental lines by crossing elite lines with donor parents. Molecular markers are utilized to identify plants with particular traits of interest during parental line development. Newly developed parental lines are crossed together or with other elite parental lines to create new hybrid combinations. New hybrid combinations are evaluated in target geographies for improved yield, good agronomics, and specific traits of interest. Multi-year, multi-location evaluations are used to identify hybrid entries with improved yield, stable performance, and good agronomics. Evaluation of the parental lines involved in these new hybrids helps establish the produce ability and potential cost of goods which have direct impact on the potential commercial release of new hybrid products.
Key wordsParental lines A, B, R-lines Elite Hybrids Molecular markers Multi-year Multi-location Yield Performance
No references were utilized in preparing this chapter. Information in the chapter titled Hybrid Sorghum Development and Production was based on my reflections and observations during 40+ years of working in the private seed sector as a commercial plant breeder.