A Purdue University researcher is working to restore the American chestnut, an important wildlife tree and timber resource that dominated the landscape from Maine to Mississippi before it was driven to near-extinction by a fungal disease introduced about 100 years ago.
Purdue University researcher Doug Jacobs stands next to an American chestnut. Jacobs is studying how well American chestnut trees grow in plantations, research essential to future reintroduction plans. He also is developing a blight-resistant hybrid to be used in future planting projects. (Purdue University photo/ Bruce Wakeland)
The American chestnut tree (Castanea dentata), whose leaves and nut-bearing structures are shown here, was nearly wiped out in the first half of the 20th century by a fungal infection. A Purdue University researcher is developing trees resistant to the infection in the hope of restoring American chestnut throughout parts the United States. (Purdue University photo/Doug Jacobs)
Doug Jacobs, assistant professor of forestry in the Hardwood Tree Improvement and Regeneration Center at Purdue and director of the Indiana chapter of the American Chestnut Foundation, studies how well American chestnut trees grow in plantations, research essential to future reintroduction plans. He also is developing a blight-resistant hybrid to be used in future planting projects.
In a paper to be published in the April issue of Forest Ecology and Management, Jacobs reports that American chestnut in a study plantation grew as much as 77 percent taller and 140 percent wider than two other forest species - black walnut and northern red oak - in the same plantation over an eight-year period.
Jennifer Cutraro | Purdue News
Ammonium nitrogen input increases the synthesis of anticarcinogenic compounds in broccoli
26.04.2017 | University of the Basque Country
New data unearths pesticide peril in beehives
21.04.2017 | Cornell University
More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
28.04.2017 | Event News
20.04.2017 | Event News
18.04.2017 | Event News
28.04.2017 | Medical Engineering
28.04.2017 | Earth Sciences
28.04.2017 | Life Sciences