Breeding Low Phytate Soybeans: Recommendations for Success.

Poor germination and emergence is a common problem in low phytate soybeans, regardless of germplasm source.  Breeding low phytate soybeans is challenging because in a few generations mutant alleles will be reduced or eliminated if standard procedures for population and line development are used.  Genetic improvement is possible, but requires a calculated breeding strategy because strong genotype x environment interactions apply to both the maternal and the seedling environments.  We have several seasons of experience and provide recommendations for breeding low phytate soybeans and explore whether or not natural selection alone will improve germination and emergence.