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Below you'll see everything we could locate for your search of “rootstock”
The Citrus Research and Development Foundation (CRDF) directors recently ratified the rootstock selections for the planned rootstock field trials and discussed the organization’s involvement in future research, CRDF Chief Operating Officer Rick Dantzler reported. The board ratified 10 rootstock selections for the new field trials, overseen by CRDF’s Select Committee on Plant Improvement. According to Dantzler, the field trials will evaluate …
Ongoing citrus rootstock trials being conducted by University of Georgia (UGA) Cooperative Extension in Lowndes County hold promise for increased yields, improved fruit quality and greater disease resistance. Jake Price, UGA Extension agent and Lowndes County Extension coordinator, has six local citrus rootstock/variety trials with varying objectives. The trees are custom-produced by U.S. Department of Agriculture (USDA)-certified citrus nurseries in …
By Kim D. Bowman Lemons are a relatively small part of the Florida citrus crop. But with more than 317,000 lemon trees propagated in Florida nurseries over the past two years, lemons are clearly gaining increasing interest from growers trying to find a crop that is easier to grow and with a quick return on investment. As is the case …
University of Florida Institute of Food and Agricultural Sciences professor Larry Duncan discussed the citrus nematode (Tylenchulus semipenetrans) during a recent international webinar on plant parasitic nematodes hosted by ADAMA. T. semipenetrans has a worldwide geographical distribution, making it the most common plant parasitic nematode of citrus. According to Duncan, this pest is regulated by seasonal carbon flux in fibrous …
In his virtual Citrus Expo presentation, Jude Grosser reviewed varieties and rootstocks showing promise for productivity in the face of HLB. Grosser is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) plant breeder. His presentation was based on work done by him and fellow UF/IFAS researchers Bill Castle and Fred Gmitter. Grosser said UF/IFAS released OLL-20 “based …
A variety of different findings in recent rootstock trials led to a conclusion that long-term evaluation of rootstocks is necessary to assess economic benefits to growers. That conclusion was part of a take-home message in Ute Albrecht’s virtual Citrus Expo presentation. Albrecht is a researcher with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). Her report was …
By Yu Wang, Fred Gmitter and Jude Grosser A major concern for the citrus industry is a significant decline in production due to huanglongbing (HLB). In addition to the production shortfalls are losses due to fruit rejection by packinghouses and juice processing plants as a result of inadequate size and low sugar content. Bitterness and metallic off flavors in the …
The new Sugar Belle hybrid rootstock LB8-9xS13#16 has quite a history, according to University of Florida Institute of Food and Agricultural Sciences citrus breeder Jude Grosser. “This is one of several projects I did with Orie Lee toward the end of his Florida Citrus Hall of Fame career/life,” recalls Grosser. “We did a lot of brainstorming together, and he was …
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 …
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 …
By Rhuanito S. Ferrarezi, William S. Castle, Kim D. Bowman, Jude W. Grosser, Stephen H. Futch, Steve Rogers and Andres Gonzalez First published in 1989 as Rootstocks for Florida Citrus, the work of William Castle and his colleagues remains relevant 30 years later. The purpose of the fourth edition of the Florida Citrus Rootstock Selection Guide is to provide timely …
By Bill Castle “The notion that field trial data are of little value in the early years and trials must run for 15 years is outdated.” [Lesson 7] “Our new website provides the grower community with user-friendly access to our collective decades of rootstock trial data…” [Lesson 9] Those are two of many lessons shared in a recent article authored …
Seventeen researchers have responded to the Citrus Research and Development Foundation’s (CRDF) request for very specific citrus nutrition research, the organization’s board of directors learned May 19. CRDF Chief Operating Officer Rick Dantzler said several advisory groups will review the proposals prior to the CRDF board choosing and funding selected proposals no later than September. The research requested by CRDF …
A new website with a wealth of information about citrus rootstocks is now available at https://citrusrootstocks.org/. Rootstock breeder Kim Bowman, with the U.S. Department of Agriculture (USDA) Agricultural Research Service in Fort Pierce, has posted results from 37 replicated multiyear rootstock field trials in Florida. The results can be easily accessed from the site by computer, tablet or smartphone. According …
The recently released fourth edition of the Florida Citrus Rootstock Selection Guide is “way more user friendly” than past editions, one of its authors says. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher Rhuanito “Johnny” Ferrarezi says “a completely redesigned website” is what makes the guide so useful for growers. Ferrarezi works as an assistant professor at …
By Kim D. Bowman and Ute Albrecht The US-1283 rootstock was released by the U.S. Department of Agriculture (USDA) in 2014, based on field performance with Hamlin 1-4-1 sweet orange in trials at two different locations in Florida severely affected by huanglongbing disease. One of these trials was in St. Lucie County and of 14 years duration, while the second …
By Bill Castle If timing is everything, then let me suggest that the timing is right to consider the following proposals about making scion and rootstock choices in the Florida citrus industry: What to plant? That is a huge question that could be initially addressed by a one-day program carefully planned as to objectives, format and participants. I was reminded …
(UF/IFAS) — Florida’s citrus growers may now access the updated Florida Citrus Rootstock Selection Guide, which is more user- and mobile-friendly. Revisions include current University of Florida rootstock horticultural traits, three new rootstocks that tolerate citrus greening and an updated bibliography. “The fourth edition of the Florida Citrus Rootstock Selection Guide has a new look and information for a comprehensive description …
The world’s peerless grapefruit grows in the Indian River Citrus District. Balanced with sugar and tart, and a thin rind for easy peeling, the fruit is sold mostly for export to European and Asian markets, where it is a high-price delicacy. But the once-thriving industry is in decline, and a plant pathogen is present in all of the state’s grapefruit …
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) plant physiologist Ute Albrecht discusses her research on citrus rootstocks. Albrecht points out that sour orange was the dominant rootstock in Florida several decades ago, until trees on the rootstock succumbed to citrus tristeza virus. “Now we have many other rootstocks that are beneficial for different reasons,” she says. Those …
