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Below you'll find a list of all posts that have been categorized as “Research”
Waste from the citrus industry can provide biogas and valuable products for a range of industries, according to a doctoral thesis at the University of Borås in Sweden. “The citrus industry creates so much waste that it corresponds to between 40 and 60 percent of the total citrus mass,” said Lukitawesa Lukitawesa, who recently defended his doctoral thesis at the …
Texas A&M AgriLife Research scientists have made a discovery that should help combat fastidious or “unculturable” pathogens, such as Candidatus Liberibacter asiaticus, the HLB causal agent. HLB is also known as citrus greening disease. Kranthi Mandadi, a researcher with Texas A&M, and his colleagues have been working several years on developing new technologies to fight the fastidious pathogens. Mandadi and …
Several University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) faculty are collaborating with other universities and organizations on research, especially for HLB. Michael Rogers, director of the UF/IFAS Citrus Research and Education Center (CREC), summarizes the work they are doing on a variety of grant-funded projects. Rogers starts with a U.S. Department of Agriculture (USDA)-funded project led by …
This year, the U.S. Food and Drug Administration updated the nutrition facts label to highlight certain information, including added sugars, to help consumers make healthier food choices. A University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) study found that the label did not impact consumer beverage choices. “We were interested in how effective the newly updated nutrition label …
Four researchers from around the country summarized their work on culturing the causal agent of HLB and agreed to consider a large, joint culturing project. The Citrus Research and Development Foundation (CRDF) hosted the panel discussion on Nov. 5 about culturing Candidatus Liberibacter asiaticus (CLas). CRDF organized the presentation after receiving a request for funding of a CLas culturing project …
The Florida Citrus Commission (FCC) recently approved three research projects aimed at further proving the health benefits of orange juice (OJ) consumption. The OJ-related projects had been recommended by the commission’s Scientific Research Advisory Committee. The projects were discussed by Rosa Walsh, director of the Florida Department of Citrus (FDOC) Scientific Research Department, during the October FCC meeting. The FCC …
Use of CRISPR (clustered regularly interspaced short palindromic repeats) technology has already produced trees that are highly resistant to citrus canker. In a Citrus Expo virtual presentation, microbiology and cell scientist Nian Wang reported on work that is being done with CRISPR to develop tree resistance to HLB. Wang is a University of Florida Institute of Food and Agricultural Sciences …
A new, four-year study published in Public Health Nutrition found that drinking 100 percent orange juice (OJ) is not associated with negative effects on body weight, body mass index (BMI) or BMI percentile among 9- to 16-year-olds. It also found that higher OJ consumption is associated with increased height for girls and increased trends for physical activity levels in both …
The U.S. Department of Agriculture’s National Institute of Food and Agriculture (USDA-NIFA) recently awarded 12 grants totaling more than $45 million for research to combat HLB. “USDA-NIFA’s Emergency Citrus Disease Research and Extension Program (ECDRE) brings the nation’s top scientists together to tackle this problem,” said Parag Chitnis, NIFA’s acting director. Following are the 12 ECDRE projects funded by USDA-NIFA …
University of Florida (UF) scientists achieved a major milestone in their quest to develop an HLB-resistant tree by sequencing the genome of a fruit plant that’s a close cousin to citrus trees. HLB is also known as greening disease. UF Institute of Food and Agricultural Sciences researchers sequenced the genome from trifoliate orange, in collaboration with scientists from the University …
Citrus growers are beginning to explore the potential of soilless culture. Ample opportunities exist for ever-evolving systems offering improved yield while overcoming a diminishing availability of soil fumigants and increased pest pressure. There is a need for flexibility in a constantly changing world of new production methods and regulations. Soilless culture provides an unprecedented opportunity to rethink how tree fruit …
Citrus Research and Development Foundation (CRDF) directors on Sept. 22 had a lengthy discussion about a nutrition research proposal from Rhuanito (Johnny) Ferrarezi. Ferrarezi is a University of Florida Institute of Food and Agricultural Sciences assistant professor at the Indian River Research and Education Center. Because of budgetary concerns expressed by CRDF, Ferrarezi cut $158,000 from his original proposed project …
Time is running out for commercial citrus growers in Florida to apply to participate in Cycle Two of the Citrus Research and Field Trial (CRAFT) program. The deadline to apply is Friday, Sept. 4. The application process is open to growers with a minimum of 20 acres of planned solid-set or reset plantings. Cycle Two of CRAFT covers up to …
The Citrus Research and Development Foundation (CRDF) board recently chose leaf sampling timing and frequency as its top priority for a new nutrition research project. The board also agreed to create a Select Committee on Plant Improvement to help plant breeders decide which new cultivars should go into final field trials. CRDF Chief Operating Officer Rick Dantzler discusses the board’s …
Thanks to recent advances in metabolic modeling, scientists are closer to gaining the upper hand on citrus greening (also known as huanglongbing or HLB), a disease that has wiped out citrus orchards across the globe. New models of the bacterium linked to the disease reveal control methods that were previously unavailable. Metabolic models of organisms are like road maps of …
A growing body of scientific research shows that 100 percent orange juice (OJ), and its vitamins and minerals, may play a beneficial role in helping to lower blood pressure and other risk factors for heart disease. Recently, a randomized control study performed by researchers at Eurecat, Centre Tecnològic de Catalunya, in Reus, Spain concluded that 100 percent OJ and 100 percent OJ fortified …
By Jude Grosser, Fred Gmitter and Kim Bowman Two citrus breeding programs have identified several rootstocks that can currently be planted with confidence when combined with appropriate scions, including mid- and late-season oranges, and grown with emerging enhanced nutrition programs. These citrus breeding programs are at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education …
Researchers at the resurrected Millennium Block at Fort Pierce will assess the performance of new grapefruit cultivars and evaluate numerous rootstocks in the face of HLB. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher Rhuanito “Johnny” Ferrarezi discusses the history of the block and research planned there. The block is called Millennium because some researchers planted variety …
By Ute Albrecht, Sudip Kunwar and Jude Grosser Prior to 1865, the only rootstocks used in Florida were sour orange and sweet orange. Use of grafted trees instead of seedling trees became necessary because of the devastating effects of phytophthora on sweet orange. Sour orange was widely used as a rootstock because of its resistance to phytophthora and other positive …
Approximately 60 people learned how to participate in Cycle Two of the Citrus Research and Field Trial (CRAFT) program via a virtual workshop held June 23-24. The application period for Cycle Two will be July 20 to Sept. 4, 2020. CRAFT offers growers substantial financial incentives to plant new trees that will be raised utilizing specific HLB mitigation strategies. Participating …
