Genetic purity
Seedling Growout®
Experienced evaluation of a meaningful 400-kernel sample, including genetic and germination uniformity ratings, with results in 14 days or less.
Explore Seedling Growout® →Independent seed research since 1987
Better seed decisions
start here.
Reliable seed testing, accelerated corn breeding systems, and greenhouse programs designed around the decisions that matter most to your breeding and quality teams.
What we do
Greenhouse-proven support for better seed decisions.
PSR combines uniform greenhouse environments, experienced evaluation, and practical breeding support to help seed companies verify quality, accelerate development, and make confident program decisions.
Why companies choose PSR →Seed testing
Testing designed around the questions you need answered.
01
View All Seed Testing
Seedling Growout®
Genetic purity evaluation for selfs, outcrosses, and off-types in a 400-kernel sample.
Learn more → 02Germination Tests
Warm, Cold, and Extended Cold evaluations for corn and soybeans.
Learn more → 03Non-GMO Tests
Flexible greenhouse screening for commercial seed and seedstock lots.
Learn more → 04Trait Tests
Trait-protein detection with Seedling Growout® integration available.
Learn more → 05Herbicide Tests
Greenhouse verification of herbicide tolerance and contamination sources.
Learn more →Specialized PSR capabilities
Four systems built around better seed and breeding decisions.
Inbred development
Rapid Inbreeding®
Develop testable S4–S8 inbred lines within one growing season, with useful quantities of uniform seed for hybrid development and testing.
Explore Rapid Inbreeding® →Trait conversions
Phenotype Select™
Experienced, multi-character seedling selection from BC1 through BC4 helps maintain genetic accuracy and similarity to the recurrent parent.
Explore Trait Conversions →Greenhouse services
Programs built around your research.
Flexible greenhouse support for seed increases, controlled crosses, growouts, evaluations, trait work, and specialized projects.
Explore Greenhouse Services →Research & genetics
Built on decades of corn research.
PSR’s seed testing and breeding services are supported by decades of hands-on experience in corn genetics, inbred development, and greenhouse research.
Independent corn genetics
Access elite corn hybrids and inbred lines through flexible licensing agreements backed by an active, independent breeding program.
Visit PSR Global Genetics →Corn Journal
Explore Jim Dodd’s perspectives on corn biology, genetics, breeding, seed, and disease—preserved as a technical resource.
Explore Corn Journal →Start a conversation
Let’s talk about your next sample.
Tell us what you need to verify, and we’ll help identify the most practical testing approach.
Contact PSR