Professional Seed Research, Inc. (PSR) offers a conversion service for transgenic and other traits of corn that saves time, money and winter nursery space. The program features three generations per year in PSR greenhouses, use of Phenotype Select™ to reduce the number of generations needed to recover the original inbred and PSR expertise in growing greenhouse corn plants.

Large companies are using PSR to reduce the pressure on winter nursery sites as well as a less expensive method to quickly complete the conversion. Smaller companies use PSR rather than create new in-house breeding programs. International companies find the PSR program convenient for transgenic conversions of traits while waiting for their country's trait approval.

Our complete backcrossing program includes the F₁ through BC₄S₂ in a little more than 2 years. Customers have found PSR's BC₂ selections to be equivalent to a BC₅ and BC₄ selections to be equivalent to a traditional BC₇ (when tested against Molecular Markers). Therefore, the BC₂ recoveries are good enough for selfing while continuing with the BC₃. Some prefer to receive seed during this stage to save time and money. PSR is flexible, allowing entry and stopping at any stage.