News

Harvesting vegetation on riparian buffers barely reduces water-quality benefits

Allowing farmers to harvest vegetation from their riparian buffers will not significantly impede the ability of those streamside tracts to protect water quality by capturing nutrients and sediment — and it will boost farmers’ willingness to establish buffers.

Coral’s resilience to warming may depend on iron

How well corals respond to climate change could depend in part on the already scarce amount of iron available in their environment, according to a new study led by Penn State researchers.

Team wins grant to develop nitrogen fertilizer decision tool for organic farmers

Penn State researchers have received a $500,000 grant from the U.S. Department of Agriculture's National Institute of Food and Agriculture to perfect a tool they developed to help organic corn producers decide how much nitrogen — as fertilizer or manure — to apply to their crop fields.

Penn State black walnut trial turns 40, now ideal climate-change experiment

Visitors to Penn State’s University Park campus often arrive with a short list of attractions they want to see. Among the most popular are the Nittany Lion Shrine, the Berkey Creamery and The Arboretum at Penn State. However, few are aware of the Black Walnut Provenance Study, let alone care to visit it.

New tool for identifying endangered corals could aid conservation efforts

Coral conservation efforts could get a boost from a newly developed genotyping “chip” — the first of its kind for corals. The chip allows researchers to genetically identify corals and the symbiotic algae that live within the coral’s cells, a vital step for establishing and maintaining genetic diversity in reef restoration efforts.

Invasive shrubs in Northeast forests grow leaves earlier and keep them longer

The rapid pace that invasive shrubs infiltrate forests in the northeastern United States makes scientists suspect they have a consistent advantage over native shrubs, and the first region-wide study of leaf timing, conducted by Penn State researchers, supports those suspicions.

Cover crop roots are key to understanding ecosystem services

To judge the overall effectiveness of cover crops and choose those offering the most ecosystem services, agricultural scientists must consider the plants’ roots as well as above-ground biomass, according to Penn State researchers who tested the characteristics of cover crop roots in three monocultures and one mixture.

Flavonoids' presence in sorghum roots may lead to frost-resistant crop

​Flavonoid compounds — produced by the roots of some sorghum plants — positively affect soil microorganisms, according to Penn State researchers, who suggest the discovery is an early step in developing a frost-resistant line of the valuable crop for North American farmers.​

Ecology Institute announces grant recipients

The Ecology Institute has awarded 11 proposals from across the University as part of its Flower Grant program, including five projects submitted by faculty at Commonwealth Campuses.

Gall fly outmaneuvers host plant in game of 'Spy vs. Spy'

Over time, goldenrod plants and the gall flies that feed on them have been one-upping each other in an ongoing competition for survival. Now, a team of researchers has discovered that by detecting the plants’ chemical defenses, the insects may have taken the lead.