Indiana News

Pure American chestnut harvest at Duke orchard

Duke orchard is a germplasm conservation orchard started with a generous contribution from Duke Energy Company. Many of the trees have produced nuts for a number of years. Some years pollen is applied in spring to produce controlled crosses. This year the trees were open pollinated which means that trees were pollinated by pollen from other chestnuts in the orchard without pollen from specific trees being applied to specific mother trees.

Today, October 6, 2022, volunteers and staff harvested the nuts that resulted from the open pollination. Caleb Kell, orchard staff, harvested chestnut burrs from the tall trees using a lift vehicle. Other volunteers performed the prickly task of removing the nuts from the burrs. These nuts will be stratified over the winter and grown into seedlings in spring at several locations. Many of these seedlings will be used as rootstock for grafting. When chestnut trees are found in the wild, small twigs, called scion wood, can be taken from the wild tree and grafted onto the rootstock and grown into mature chestnuts. Other nuts will be planted in germplasm conservation orchards. The genetic material of the Duke trees contains traits which will be very valuable in future breeding of blight resistant chestnuts.

Caleb Kell harvesting chestnut burrs from our tall trees.

Volunteer Claud Diehl removes the nuts from the painfully spiny burrs.

 

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Join us on tomorrow, October 10, 2025, from 11:30AM – 1:00PM (EPT), for the next LIVE Chestnut Chat.

Our special guest, Dr. Trevor Walker, Assistant Professor of Forest Genetics and Co-Director of the Cooperative Tree Improvement Program at NC State University, will share insights from 70 years of breeding loblolly pine for disease resistance, growth, and stem form. He will also consider which practices are likely to succeed for American chestnut, which are not, and why.

Visit tacf.org/event/chestnut-chat-breeding-disease-resistance-in-loblolly-pine/ to learn more or register.
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Join us on tomorrow, October 10, 2025, from 11:30AM – 1:00PM (EPT), for the next LIVE Chestnut Chat.Our special guest, Dr. Trevor Walker, Assistant Professor of Forest Genetics and Co-Director of the Cooperative Tree Improvement Program at NC State University, will share insights from 70 years of breeding loblolly pine for disease resistance, growth, and stem form. He will also consider which practices are likely to succeed for American chestnut, which are not, and why.Visit https://tacf.org/event/chestnut-chat-breeding-disease-resistance-in-loblolly-pine/ to learn more or register.

Do you love pulling on your work gloves and cracking open freshly fallen burs to reveal the chestnuts inside? If you do, but don’t have any of your own yet, become a member and get access to our wild-type seed sale in 2026. In just a few years, your hands could be full of spiky burs and American chestnuts of your own. support.tacf.org/membership/new-regular ... See MoreSee Less

32 CommentsComment on Facebook

I use my boots to open them!

Porcupine eggs!!😂🤣

I have a bag full.

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We’re proud to share this segment from the PBS show Human Footprint, featuring former TACF staff member Sara Fitzsimmons. The American chestnut sequence was selected to be adapted into a standalone YouTube video, which launched in late September and has already garnered more than half a million views. Sara’s dedication and expertise have shaped much of the progress in restoring the American chestnut. Give it a watch to learn more about this important work. ... See MoreSee Less

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2 CommentsComment on Facebook

Great presentation!

🌰 Harvest season at TACF’s Meadowview Research Farms brings both beauty and breakthrough science. Many of the chestnut crosses we gather are generated through recurrent genomic selection—cutting-edge research driving restoration forward. Each bur holds not only the wonder of new life, but also the promise of a future where the majestic American chestnut returns to our forests. 🌳

#americanchestnut #castaneadentata #americanchestnutfoundation #ChestnutResearch #meadowviewresearchfarms
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1 CommentComment on Facebook

Are there places we can purchases a Chestnut tree that is disease resistant? Thanks!

We'll be co-hosting American Chestnut Day at the NC Arboretum this Saturday! If you're local, we hope you'll join us for a fun day of speakers, activities, and even a wild-type chestnut seedling sale! ... See MoreSee Less

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