Northern Research Station, USDA Forest Service | Department of Forestry and Natural Resources at Purdue University

HTIRC - Hardwood Tree Improvement & Regeneration Center
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Tree height measurement with iPhone embedded sensors

by Osmar Lopez | Mar 31, 2025

Volatiles from nutritional fungal symbiont influence the attraction of Anisandrus maiche (Coleoptera: Curculionidae) to ethanol-baited traps.

by Osmar Lopez | Mar 31, 2025

Response of understory vegetation to long-term occupancy by introduced Pinus species in temperate deciduous hardwood forests

by Osmar Lopez | Mar 31, 2025

Response of live oak regeneration to planting density, fertilizer, and mulch

by Osmar Lopez | Mar 31, 2025

Overstory and understory resource competition variably influences conversion of introduced conifer plantations to native hardwoods

by Osmar Lopez | Mar 31, 2025

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Recent Posts

  • HTIRC 2025 Annual Report is Now Available
  • From the Director’s Desk – Fall 2025
  • Modeling Tree Neighborhood Interactions and Their Effects on Hardwood Growth and Regeneration
  • Meet the P.I. – Dr. Insu Jo
  • Understanding the Role of Carbohydrate Dynamics on White Oak Regeneration

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Hardwood Tree Improvement and Regeneration Center

715 W. State St.

West Lafayette, IN 47906

(765) 494-7306

htirc@htirc.org

  • Purdue Agriculture
  • USDA Forest Service, Northern Research Station
  • Forestry and Natural Resources
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