Pennsylvania

Study Finds Deer May Be Reservoir for SARS-CoV-2

More than 80 percent of the white-tailed deer sampled in different parts of Iowa between December 2020 and January 2021 tested positive for SARS-CoV-2. The percentage of SARS-CoV-2 positive deer increased throughout the study, with 33 percent of all deer testing positive. The findings suggest that white-tailed deer may be a reservoir for the virus to continually circulate and raise concerns of emergence of new strains that may prove a threat to wildlife and, possibly, to humans.

Novel Lighting System Designed for Machine Vision Module of Agricultural Robots

A novel camera system using active lighting devised by Penn State University researchers may be a crucial step in developing machine vision systems that allow robotic devices to more clearly "see" the agricultural targets with which they will react.

Microgreens Go from Trendy Vegetables to Functional Food

Starting decades ago as fashionable, high-value gourmet greens, today microgreens have gained popularity among consumers for their nutritional profile and high content of antioxidant compounds. Now, a new study suggests that the tiny plants have the potential to help provide global nutrition security.

Researchers Identify a Gene that Regulates the Angle of Root Growth in Corn

The discovery of a gene that regulates the angle of root growth in corn is a new tool to enable the breeding of deeper-rooting crops with enhanced ability to take up nitrogen, according to an international team of researchers, led by Penn State University.

Nitrous Oxide Emissions Coming from Legume Cover Crops, Manure, Can Be Reduced

The application of manure after the growth and demise of legume cover crops in rotations is a recipe to increase nitrous oxide releases during ensuing corn growth, according to Penn State University researchers.

Study Looks at Nitrogen Credit Trading to Spur Growth of Riparian Buffers

Watershed-wide nutrient credit trading has been suggested as a mechanism for reducing agricultural pollution entering the Chesapeake Bay, but a new study by Penn State University researchers suggests that the high cost of producing nitrogen credits through the establishment of riparian buffers on Pennsylvania farmland currently does not incentivize buffer establishment.

CRISPR/Cas Technology Could Enable Early Diagnosis of Devastating Citrus Disease

Penn State University and USDA scientists have used cutting-edge CRISPR/Cas technology to develop a diagnostic test that could enable early diagnosis of Huanglongbing or citrus greening, a serious disease that threatens worldwide citrus production, which is valued at roughly $17 billion from the sale of fresh fruit and juices.

Golf Course Turfgrass Species 'Remembers' if it was Mowed, Develops Differently

Poa annua, or annual bluegrass, a turfgrass species commonly found on golf course putting greens around the world, possesses transgenerational memory, “remembering” whether its parent was mowed or not mowed, according to a new study by Penn State researchers.

Newly Discovered Trait Helps Plants Grow Deeper Roots in Dry, Compacted Soils

A previously unknown root trait allows some cereal plants to grow deeper roots capable of punching through dry, hard, compacted soils, according to Penn State University researchers, who suggest that harnessing the inherited characteristic could lead to crops better able to deal with a changing climate.

Climate Change Reduces the Abundance and Diversity of Wild Bees

Wild bees are more affected by climate change than by disturbances to their habitats, according to a team of researchers led by Penn State University. The findings suggest that addressing land-use issues alone will not be sufficient to protect these important pollinators.