What are examples of seed orchards?

Seed orchards are managed plantations specifically designed to produce seeds with desirable genetic traits. Examples include the "North Carolina State University Loblolly Pine Seed Orchard," which focuses on improving growth and disease resistance, and the "Oregon State University Douglas Fir Seed Orchard," known for enhancing timber quality. These orchards utilize selective breeding techniques to ensure high-quality seed production for reforestation and commercial forestry.