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Below you'll see everything we could locate for your search of “rootstock”
By Fernando Alferez, Susmita Gaire, Ute Albrecht, Ozgur Batuman, Jawwad Qureshi and Mongi Zekri It has been nearly three years since the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) started its studies on individual protective covers (IPCs). The objective of this study is to evaluate the feasibility of IPCs as a strategy to prevent HLB infection of …
By Chris Oswalt and Davie Kadyampakeni In preparation for winter in Florida, citrus growers must first understand some essential concepts related to protecting citrus from freezing temperatures. Specifically, growers need to know when and how to protect citrus trees from freeze damage. WHEN TO PROTECT When (i.e., at what critical temperature) will damage begin to occur? This temperature is dependent on …
In 2016, federal authorities began allowing Florida citrus growers to spray oxytetracycline solutions on their trees to combat citrus greening disease. Since then, researchers have been investigating oxytetracycline delivery methods. In a Citrus Expo presentation, Christopher Vincent, assistant professor of horticultural sciences at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center, shared …
By Arnold Schumann, Laura Waldo, Napoleon Mariner and Timothy Ebert According to the U.S. Department of Agriculture (USDA), Florida grapefruit production for the 2019–20 season was only 12 percent of the production recorded in 2003–04, prior to the arrival of huanglongbing (HLB) disease in the state. A major goal of the University of Florida Institute of Food and Agricultural Sciences …
Michael Rogers discusses the importance of the recent sequencing of the trifoliate orange genome by University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers and others. He also tells how growers can learn more about UF/IFAS research funded by the Florida Legislature. Rogers is director of the UF/IFAS Citrus Research and Education Center (CREC) in Lake Alfred and …
Citrus Research and Development Foundation (CRDF) directors recently received an update on planned rootstock field trials and discussed the organization’s budget, CRDF Chief Operating Officer Rick Dantzler reported. ROOTSTOCK TRIALSThe new rootstock trials will be overseen by CRDF’s Select Committee on Plant Improvement, which met on Oct. 22 with citrus grower John Gose as chairman. Dantzler said the field trials …
By Evan Johnson and Megan Dewdney The last two years have seen increasing grower questions and reports of citrus trunk disorders in Florida. Sometimes these reports are associated with sudden tree collapse. In many cases, phytophthora foot rot is initially suspected. Typically, the symptoms don’t quite match those of foot rot, and phytophthora cannot be isolated from the lesion. If …
By Manjul Dutt, Juliana Soares and Jude Grosser Land plants such as citrus are generally anchored to a specific location by their roots. Owing to their immobile nature and constant exposure to pathogenic microbes, plants are very vulnerable. However, you might be surprised by how much plants can protect themselves and survive against multiple adversities encountered during their lifetime. A …
An exciting development with genome sequencing, timely research in the face of COVID-19 and an update on sting nematode research headline October’s All In For Citrus podcast. Citrus Research and Education Center Director Michael Rogers details the benefits of recent news about the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) mapping the trifoliate orange genome. He says …
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 …
Forty-nine growers and others participated in a self-guided, drive-through tour of the Millennium Block variety performance trial at the Indian River Research and Education Center (IRREC) on Oct. 9. “Several growers highlighted trees are off to a good start, and despite the fact they’re young, they could see clear differences,” said host and IRREC researcher Rhuanito “Johnny” Ferrarezi. Ferrarezi works …
By Ronald G. Doetch I am a lifelong farmer/agronomist and, at the age of 73, have worked with many different crops through the many changes in agriculture challenges and production practices. I moved to Florida four years ago to grow a few oranges and have a firsthand look and understanding of the relationship of soil health to tree decline and …
“The combination of improved scion/rootstock genetics and optimized nutrition is clearly the way forward” for Florida’s HLB-stricken citrus industry, Jude Grosser declared in a Florida Citrus Growers’ Institute virtual presentation. Grosser is a University of Florida Institute of Food and Agricultural Sciences plant breeder. The Growers’ Institute is normally held in April but was cancelled this year due to COVID-19. …
Learning how other countries manage huanglongbing (HLB) will help shape Australia’s response if the damaging citrus disease hits its shores, according to New South Wales (NSW) citrus pathologist Nerida Donovan. One of the biggest lessons so far has been the importance of treating the psyllid vector with the same respect as the disease. Donovan, with the NSW Department of Primary …
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 …
By Ute Albrecht, Sameer Pokhrel and Kim D. Bowman The rootstock has received increased attention as a management strategy to alleviate the devastating effects of HLB. In commercial citrus nursery production, rootstocks are typically propagated by seed. This is possible because citrus produces polyembryonic seeds with nucellar embryos, which develop into plants that are genetically identical to the mother plant. …
Florida growers, Extension agents and others have been baffled by unusual trunk symptoms during what Evan Johnson termed “the year of the weird trunk disorder.” Growers spotted the disorders, which were similar to phytophthora, in groves over the past one and half to two years. Johnson addressed three of the disorders, which have been found in multiple counties. Johnson, a …
She’s early in her career, but food scientist Yu Wang is making great strides in her research. Recognizing Wang’s work, the Agricultural and Food Chemistry division (AGFD) of the American Chemical Society (ACS) recently named her a fellow. Wang, a flavor chemist with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center, may …
The Citrus Expo team and the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) have joined forces to offer educational sessions in a virtual format for this year’s Citrus Expo. On Aug. 19–20, the 2020 seminar program will debut online at CitrusExpo.net at 9:30 a.m. Attendees will be able to watch videos of research presentations. With safety as …
By Manjul Dutt and Jude Grosser Finger lime, a distant relative of sweet orange and grapefruit, is a relatively new crop species for Florida. It is an Australian native species that has been gaining in popularity and importance in the last few years because of its unique fruit characteristics and disease tolerance, which sets it apart from conventional sweet orange …
