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Below you'll see everything we could locate for your search of “rootstocks”
An Indian River-area grapefruit grower told the crowd at Florida Citrus Mutual’s recent annual conference about his company’s plans for coping with HLB. The plans include replanting with some diverse citrus varieties at higher densities, said Daniel Scott, vice president of Scott Citrus Management. Grapefruit has for the most part proven extremely difficult to grow profitably in the face of …
By Ute Albrecht Commercial citrus rootstock propagation traditionally occurs via use of nucellar apomictic seed, which generates genetically identical seedlings that are used as liners for budding. With the high demand for superior rootstocks in the age of HLB, commercial nurseries are currently experiencing a shortage of seeds for some of the most popular rootstock varieties. In addition, for many …
University of Florida Institute of Food and Agricultural Sciences researcher Jude Grosser discusses small experiments that indicated manganese and boron can help citrus trees cope with HLB. In a greenhouse experiment from a few years ago, HLB-infected sweet orange trees were overdosed with micronutrients and secondary nutrients. “It looked like … manganese had the biggest effect on growth of the …
Growers discuss lessons learned from Hurricane Irma, replanting plans, grove rehabilitation, crop insurance and more. By Tacy Callies Florida citrus growers awaiting Hurricane Irma federal aid and insurance payouts are doing their best to keep crops healthy until more money is available. Paul Meador, citrus grower and head of Everglades Harvesting & Hauling in LaBelle, took a big hit from …
“If you want to survive, you have to plant” is a common sentiment heard among Florida citrus growers. The June issue of Citrus Industry magazine examines several issues of interest related to new plantings. In the cover story, Editor Tacy Callies speaks with citrus growers recovering from Hurricane Irma and shares details about their replanting plans. Other topics discussed in …
The use of highly HLB-tolerant genotypes as interstocks on a tree with a Swingle rootstock and a Valencia scion infected with HLB is offering hope for help against HLB, Jude Grosser reports. Grosser is a plant breeder with the University of Florida Institute of Food and Agricultural Sciences at the Citrus Research and Education Center in Lake Alfred. “Virtually every …
By Tacy Callies Some people start young adulthood by following in their parents’ footsteps. Jude Grosser began by following the path of his oldest brother, Tim, instead. Both went to Thomas More College and majored in biology. After that, their education and careers took different turns. Grosser thought he would work in wildlife or fisheries, but then had an opportunity …
Column sponsored by the Citrus Research and Development Foundation As early as 1965, high-temperature treatments were shown to reduce HLB bacterial infection without killing the tree. Trials [Ehsani, University of Florida/Institute of Food and Agricultural Sciences (UF/IFAS)] using portable, semi-transparent, plastic houses were placed over trees, achieved temperatures of above 120 F for several hours over several days, and reduced …
By Robin Koestoyo, University of Florida Institute of Food and Agricultural Sciences An inventive fruit tree researcher has joined the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Indian River Research and Education Center. Lorenzo Rossi is the center’s first-ever root biology professor and will support the university’s statewide Institute of Food and Agricultural Sciences’ commitment to restore Florida’s $9 …
With citrus greening devastating Florida’s $8.6 billion-a-year citrus industry, three University of Florida scientists will use $10.52 million in federal grants to study ways to help growers cope with the disease, including research on genetic editing that may produce potentially resistant fruit and trees. Since greening — or huanglongbing (HLB) — was first reported in Florida in 2005, Florida’s citrus …
By Bill Castle and Pete Spyke There’s an old story that goes something like this: A farmer was out walking one evening and fell into a hole deep enough to require help to get out. Later, another farmer was walking by and jumped into the hole. The farmer in the hole was astounded and asked, “Why did you do that?” …
Updates on the search for trees that are resistant to HLB drew more than 40 growers and others to an OJ Break in Bartow on Jan. 9. Leadoff speaker Fred Gmitter, a plant breeder with the University of Florida Institute of Food and Agricultural Sciences, discussed an effort to see if so-called “survivor” trees might offer a solution. Survivors are …
Grafted orange trees showcased at the 100th anniversary of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center (CREC) may give the state’s citrus growers new reason to hope the industry can cope with the citrus greening crisis, UF/IFAS researchers say. University of Florida scientists and Tropicana are teaming up to test promising new UF/IFAS-bred …
A citrus nursery employee has found super-root mutants that might offer hope for developing trees that are less susceptible to HLB. The employee is Beth Lamb, a tissue culture expert at Phillip Rucks Citrus Nursery. University of Florida Institute of Food and Agricultural Sciences citrus breeder Jude Grosser tells about her discovery. “She discovered some mutants of some of the …
By Ute Albrecht and Sarah Strauss Recent years have seen an explosion of products termed “biostimulants” as alternatives to traditional chemical products to improve plant growth and productivity, and to enhance the sustainability of agricultural systems. Although there is currently no legal definition of biostimulants, they are usually defined as “substance(s) and/or microorganisms that when applied to plants or the …
An approximately 35-acre research plot that fell victim to citrus canker years ago will soon become a new research site helping growers pick trees that fare best with HLB. The plot at the Indian River Research and Education Center (IRREC) in Fort Pierce will keep its former name, the Millennium Block. University of Florida Institute of Food and Agricultural Sciences …
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Oranges, grapefruit, tangerines and limes. Most people think of these as signature plants of Florida, but scientists have traced their origins back millions of years and across continental land masses, said Fred Gmitter, a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) professor of horticultural sciences. Scientists can describe the evolutionary paths of your favorite citrus, from prehistoric …
By Manjul Dutt and Jude W. Grosser Huanglongbing (HLB) threatens the survival of the Florida citrus industry. Both conventional cultivars and genetically engineered cultivars that can grow in the presence of HLB have been developed at the University of Florida’s Citrus Research and Education Center (CREC) in Lake Alfred. Among the two citrus improvement techniques, engineering citrus remains the fastest …
By Beverly James, Alec Richman, Brad Buck, Samantha Grenrock and Tom Nordlie The year was 1917. In April, the United States entered World War I. Florida’s population was fast approaching 1 million, and agriculture was the state’s most important economic driver. Citrus cultivation, introduced to Florida 400 years earlier by Spanish explorers, had spawned an industry following the Civil War. …
