GAINESVILLE, Fla. — University of Florida researchers have gained new insight into produce-associated salmonella that they hope will eventually reduce the number and severity of the illness-causing outbreaks.
Tomato variety and weather can combine to make what the researchers call a “perfect storm” for salmonella to proliferate in harvested tomatoes, a new study shows.
It remains unclear how much each contributes to salmonella’s spread, but scientists say understanding the process is key to eventually curbing produce-associated outbreaks.
GAINESVILLE, Fla. – University of Florida researchers will use $1.45 million in federal grants to develop trait-prediction models and accelerate the growth of loblolly pine trees to produce more bioenergy.
In his grant application, UF associate professor Matias Kirst, the principal investigator for the study, said Southern pines can be used as renewable biomass for bioenergy and renewable chemicals. However, for pines to meet their potential as a bioenergy crop, researchers must develop more productive cultivars that can be efficiently converted into liquid fuels, said Kirst, who teaches in the School of Forest Resources and Conservation, part of UF’s Institute of Food and Agricultural Sciences.
GAINESVILLE, Fla. — University of Florida researchers have some encouraging results in the battle against citrus greening.
They have identified citrus cultivars, in this case 16 citrus rootstocks, most of which show a lower rate of infection and more tolerance to citrus greening – the dreaded disease that has wreaked havoc through Florida’s citrus industry since its arrival in the state in 2005.
Click here or image above for video about UF/IFAS’ strawberry breeding program.
For high-resolution version of above photo, click here. Caption below.
GAINESVILLE, Fla. — With the time for Florida growers to plant strawberries right around the corner, it won’t be long before Florida-grown strawberries appear in grocery aisles.
And for some of the best-tasting strawberries on the market according to multiple taste panels and tests, shoppers can simply look for those grown in the Sunshine State, thanks to work by the University of Florida.
Researchers with UF’s Institute of Food and Agricultural Sciences have continued to improve the quality and flavor of Florida-grown strawberries, as evident in their latest releases of the cultivars Winterstar and Florida Sensation.
GAINESVILLE, Fla. — Florida’s agriculture, natural resources and related food industries provided a $104 billion impact on the state in 2011 and have continued to improve since the 2008 recession, according to a new University of Florida study.
The study is the latest report from researchers in UF’s food and resource economics department — part of the Institute of Food and Agricultural Sciences — on the industries’ economic contributions. It can be viewed here: http://edis.ifas.ufl.edu/pdffiles/FE/FE93500.pdf.
The industries include crop, livestock, forestry and fisheries production; agricultural product and service providers; food product manufacturing; forest product manufacturing; food distribution; mining and nature-based recreation.
GAINESVILLE, Fla. — There is no evidence that pollutants from the 2010 Gulf of Mexico oil spill contributed to the “unprecedented” decline in recent Apalachicola Bay oyster populations, according to a report this week by the University of Florida.
Instead, the report by UF’s Oyster Recovery Team cites drought, insufficient rainfall and increased salinity in the bay as factors contributing to the dramatic drop-off in oyster landings beginning in September 2012 and continuing through the year, said Karl Havens, task force leader and director of Florida Sea Grant.
“There was a whole chain of circumstances that led to this situation, some of which are beyond human control,” Havens said. “Our report makes recommendations for many things that can be done to help the oyster population through management and restoration.”
Havens and other recovery team members discussed the report and findings with a crowd of about 60 residents and seafood workers Wednesday at the Apalachicola Community Center.
GAINESVILLE, Fla. — Researchers with the University of Florida’s Institute of Food and Agricultural Sciences recently completed the state’s largest-ever study of landscape turfgrass and fertilizer use, and new online videos will help homeowners and lawn-care professionals understand the findings.
The eight-year, $4.2 million study was funded by the Florida Department of Environmental Protection to determine the effectiveness of current UF/IFAS fertilizer recommendations, which have been in use since about 2000, said John Hayes, UF/IFAS dean for research. Florida has more than 5 million acres of home and commercial turf.
“This work is an important body of information generated here to address important questions about nutrient management,” Hayes said. “We’re proud to communicate our findings and we hope they will play a substantial role in helping residents, industry personnel and policymakers protect water quality.”
GAINESVILLE, Fla. — Consumed by 3 billion people, rice is arguably the world’s most important food staple, and one reason for its popularity is that rice can be grown under flooded conditions that suppress weeds, making cultivation easier.
In some parts of the world, water is in short supply, but farmers often devote what they can to rice farming, because the crop is so important. However, research has led to a simple but profound solution that requires less water – growing rice in fields, a practice called aerobic rice production.
The practice relies on rainfall plus limited irrigation to meet the plants’ moisture needs. It requires about 40 percent less water than paddy-grown rice, according to a University of Florida study in the current issue of Agronomy Journal.
Aerobic rice production is gaining popularity in India and Southeast Asia, particularly in drought-stricken or upland areas, said Rao Mylavarapu, a professor with UF’s Institute of Food and Agricultural Sciences and one of the study’s authors.
GAINESVILLE, Fla. — The quest to develop a grapefruit hybrid that will not interact with medication has taken a step forward, as researchers pinpoint compounds most responsible for the problem, a University of Florida citrus breeder says.
The data were published in the December 2012 issue of the journal Xenobiotica.
Scientists have been aware of the so-called “grapefruit juice effect” since 1989. Compounds in the fruit called furanocoumarins inhibit the action of an enzyme that breaks down certain medications in the human digestive system.
The phenomenon poses a health risk because it can produce unexpectedly high levels of these medications in a patient’s bloodstream. Doctors, pharmacists and prescription drug labels warn patients to avoid grapefruit and related products under these circumstances.
Photo cutline at bottom. Click here for high-res image.
GAINESVILLE, Fla. — Protecting Florida’s $80 million blueberry crop from freeze damage is always a wintertime challenge, but a University of Florida study shows that structures called high tunnels could shield plants from cold and promote earlier fruit ripening.
Though the initial investment can run from $18,000 to $25,000 per acre plus labor, high tunnels deliver better quality fruit, bigger early yields and higher prices if growers beat competitors to market, said Bielinski Santos, an associate professor with UF’s Institute of Food and Agricultural Sciences.
The study, published in the current issue of HortTechnology, tracked two growing seasons on a commercial blueberry farm in Alachua County. The results showed that temperatures outside the tunnels plunged to freezing or near-freezing 61 times during the study. Temperatures fell that low just three times inside the unheated tunnels.
High tunnels may increase air and soil temperatures and protect the plants from wind and rain damage, leading to better flowering and more fruit, said Santos, based at UF’s Gulf Coast Research and Education Center in Balm.