Hardwood Tree Improvement & Regeneration Center
Working to advance the science of hardwood trees
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At the Hardwood Tree Improvement & Regeneration Center, we believe in the power of collaboration and innovation. Stay up to date, view all news.
HTIRC 2025 Annual Report is Now Available
Over the past year, the Hardwood Tree Improvement and Regeneration Center (HTIRC) continued to deliver on its mission through strong partnerships, applied research and meaningful engagement with woodland owners, forestry professionals and stakeholders across Indiana and the...
Modeling Tree Neighborhood Interactions and Their Effects on Hardwood Growth and Regeneration
Understanding how individual trees interact with their neighbors is essential for developing management prescriptions that support the regeneration and growth of hardwood species. A newly-funded HTIRC research project led by Drs. Insu Jo and Mike Jenkins seeks to analyze data...
Meet the P.I. – Dr. Insu Jo
Dr. Insu Jo grew up on Jeju Island, the largest island in South Korea. His parents were farmers, operating a mandarin orange orchard. Insu played around the farm and had a “quite close connection to nature,” which eventually led him to study plant ecology at Seoul National...
Understanding the Role of Carbohydrate Dynamics on White Oak Regeneration
White oaks are a keystone species in the Central Hardwood Forest Region, for many reasons from aesthetics to cultural, ecological and economic value. White oak is used in a variety of commercial forest products from whiskey barrels to flooring, cabinetry and furniture as well...
About Our Strategic Plan
Research & Development
Research and development projects are centered on improvement, management, and protection of hardwoods
Engagement & Extension
By communicating state-of-the-art, science-based information, and technology and by linking stakeholder needs to the scientific community
Education
Developing future researchers and practitioners with expertise in the science and application of tree improvement, management, and protection of hardwood forests.
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The mission of the HTIRC is to advance the science and application of tree improvement, management, and protection of hardwood forests, with emphasis in the Central Hardwood Forest Region (CHRF).
Our Partners & Collaborators
- Purdue University Department of Forestry and Natural Resources
- USDA Forest Service Northern Research Station
- USDA Forest Service Eastern Region State and Private Forestry
- Indiana Department of Natural Resources, Division of Forestry
- Walnut Council
- Indiana Hardwood Lumbermen’s Association
- American Chestnut Foundation
- Indiana Forestry and Woodland Owners Association
- National Hardwood Lumber Association
- ArborAmerica, Inc
- Steelcase, Inc
- American Forest Management, Inc
- Nelson Irrigation
- Fred M. van Eck Forest Foundation