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Recent Research by Dr. Keith Woeste Highlighted in the AramcoWorld Magazine and Purdue Executive Vice President for Research and Partnerships Annual Report

Dr. Keith Woeste, Research Geneticist with the HTIRC, had some recent research included in an article on the human spread of Persian walnut, also known as English walnut. Investigation by Dr. Woeste and other partners looking at the genetic diversity of Persian walnut across its’ range produced evidence of spread by humans traveling the silk road routes and other trade or migration routes. Read More


Trees are moving westward in response to precipitation changes, Purdue University professor reveals

WEST LAFAYETTE, Ind. — After analyzing extensive data collected on 86 tree species in the eastern United States, a research team led by Purdue University professor Songlin Fei found that over the past 30 years, most trees have been shifting westward or northward in response to climate change. Read More  (Purdue University photo/Tom Campbell)

Walnut and the First Forest Farms

On a hot, dusty day some two thousand years ago, a traveler stops on the road from Dunhuang, China, to Marakanda (now Samarkand) in Central Asia. He drinks deeply from his flask, then reaches into his sling, pulls out a walnut, cracks it on a rock and pops the kernel into his mouth. He savors the taste, cinches up his heavy packs and walks on. Read More  (March/April 2017, Written by Graham Chandler)