University of Montana researchers are giving the public its first look at the widespread use of herbicides on federal and tribal land in North America, and they urge land managers to better document it.
Scientists at the Max Planck Institute for Chemical Ecology in Jena, Germany, the University of Bern, Switzerland, and Washington State University demonstrated the importance of jasmonate-dependent nicotine production for the survival of tobacco plants which are attacked by mammalian herbivores.
Climate change is already reshuffling the UK's wildlife calendar, and it's likely this will continue into the future, according to new research published this week in the journal Nature.
For the first time, scientists traced carbon dioxide flows through a forest during photosynthesis and respiration, correcting long-standing assumptions about how plants exchange the greenhouse gas with the atmosphere on an ecosystem-wide level. The results could help make climate prediction models more accurate.
A meta-analysis of studies in people with diabetes and pre-diabetes has shown that oral aloe vera use was associated with significant decreases in both fasting blood glucose (FBG) and hemoglobin A1c (HbA1c). The data indicate that people with a FBG >200 mg/dL may benefit the most, according to an article in The Journal of Alternative and Complementary Medicine.
Scientists from the University of Cologne and the Alfred Wegener Institute for Polar and Marine Research in Potsdam are cooperating on a research project on past climate changes in the Arctic. They found out that the degree of cold of the preceding ice age determines how fast the vegetation subsequently adapts to the warmer temperatures of the interglacial period. This allows for more precise predictions of future climate change.
By engineering a novel enzyme involved in lignin synthesis, scientists at the US Department of Energy's Brookhaven National Laboratory and collaborators have altered the lignin in plant cell walls in a way that increases access to biofuel building blocks without inhibiting plant growth.
The $5.6 billion Panama Canal expansion created an unprecedented opportunity for Smithsonian scientists to collect thousands of fossils and to study invasive species, environmental services and climate change. The post-panamax ships going through the canal will have less chance of colliding with whale mothers and their calfs as a result of another Smithsonian study.
A study compared strategies using water-soluble fertilizers (WSF) and controlled-release fertilizers to provide adequate nutrition during production and consumer phases of petunia. After 42 days in the production study, all fertilizer strategies produced horticulturally acceptable plants. In the 'consumer phase' study, plant performance was greatly improved for plants with residual fertilizer compared with WSF. The study includes economic analyses of the various management strategies.
A study investigated the effects of ultraviolet-B (UV-B) light on cool-season turfgrasses (tall fescue, creeping bentgrass, and perennial ryegrass). Experiments demonstrated that exposure to UV-B resulted in a decline of growth rate and color in cool-season turfgrasses within two weeks. Coarse-textured turf grasses (tall fescue and perennial ryegrass) had higher growth rates compared to finer-textured varieties, and the coarser-leaved plants maintained acceptable color levels compared with the finer-textured creeping bentgrasses.