Winter Citrus Brightens Cold Weather Gloom
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Generation of Sexual and Somatic Hybrids in Acid Citrus Fruits
GENERATION OF SEXUAL AND SOMATIC HYBRIDS IN ACID CITRUS FRUITS By ZENAIDA JOSEFINA VILORIA VILLALOBOS A DISSERTATION PRESENTED TO THE GRADUATE SCHOOL OF THE UNIVERSITY OF FLORIDA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY UNIVERSITY OF FLORIDA 2003 Copyright 2003 by Zenaida Josefina Viloria Villalobos This dissertation is dedicated to my darling mother Olivia and to the memory of my beloved father Dimas, and to my sisters Celina, Doris, Celmira, and Olivia, and brothers Dimas, Silfredo and Alejandro, with love. ACKNOWLEDGMENTS This work was completed with the generous collaboration of many people to whom I will always be grateful. First I wish to thank my supervisor Dr. Jude Grosser, for his guidance, suggestions, and financial assistance during the last period of my studies. I also want to thank the University of Zulia and Fondo Nacional de Ciencias, Tecnologia e Innovation for giving me the opportunity to do my doctoral studies. I thank very much Dr. Renee Goodrich, Dr. Frederick Gmitter, Dr. Michael Kane and Dr. Dennis Gray for being members of my committee and for their contributions to this work. Thanks go to Dr. Glem Wright (University of Arizona) for making it possible to generate more lemon progenies in this study. I appreciate very much the supervision and help in completing the canker screening study from Dr. Graham, Diana Drouillard and Diane Bright. I thank very much Dr. Ramon Littell and Belkys Bracho for their assistance on the statistical analysis of my experiments. Thanks go to the Division of Plant Industry (Lake Alfred, FL), particularly to Mrs. -
Joimalofagmoiltdraiesea
JOIMALOFAGMOILTDRAIESEARCH VOL. XIX WASHINGTON, D. C, JULY 15, 1920 No. 8 RELATIVE SUSCEPTIBILITY TO CITRUS-CANKER OF DIFFERENT SPECIES AND HYBRIDS OF THE GENUS CITRUS, INCLUDING THE WILD RELATIVES » By GEORGE I*. PELTIER, Plant Pathologist, Alabama Agricultural Experiment Station, and Agent, Bureau of Plant Industry, United States Department of Agriculture, and WILLIAM J. FREDERICH, Assistant Pathologist, Bureau of Plant Industry, United States Department of Agriculture 2 INTRODUCTION In a preliminary report (6)3 the senior author briefly described the results obtained under greenhouse conditions for a period of six months on the susceptibility and resistance to citrus-canker of a number of plants including some of the wild relatives, Citrus fruits, and hybrids of the genus Citrus. Since that time the plants reported on have been under close observation; a third experiment has been started, and many inoculations have been made in the isolation field in southern Alabama during the summers of 1917, 1918, and 1919. Many more plants have been successfully inoculated; others have proved to be extremely sus- ceptible; while some of those tested still show considerable resistance. The results obtained up to November 1, 1919, are described in tjhis report. EXPERIMENTAL METHODS In the greenhouse, the methods used and the conditions governing the inoculations described in the preliminary report were closely fol- lowed. The same strain of the organism was used and was applied in the 1 Published with the approval of the Director of the Alabama Agricultural Experiment Station. The paper is based upon cooperative investigations between the Office of Crop Physiology and Breeding Investi- gations, Bureau of Plant Industry, United States Department of Agriculture, and the Department of Plant Pathology, Alabama Agricultural Experiment Station. -
Holdings of the University of California Citrus Variety Collection 41
Holdings of the University of California Citrus Variety Collection Category Other identifiers CRC VI PI numbera Accession name or descriptionb numberc numberd Sourcee Datef 1. Citron and hybrid 0138-A Indian citron (ops) 539413 India 1912 0138-B Indian citron (ops) 539414 India 1912 0294 Ponderosa “lemon” (probable Citron ´ lemon hybrid) 409 539491 Fawcett’s #127, Florida collection 1914 0648 Orange-citron-hybrid 539238 Mr. Flippen, between Fullerton and Placentia CA 1915 0661 Indian sour citron (ops) (Zamburi) 31981 USDA, Chico Garden 1915 1795 Corsican citron 539415 W.T. Swingle, USDA 1924 2456 Citron or citron hybrid 539416 From CPB 1930 (Came in as Djerok which is Dutch word for “citrus” 2847 Yemen citron 105957 Bureau of Plant Introduction 3055 Bengal citron (ops) (citron hybrid?) 539417 Ed Pollock, NSW, Australia 1954 3174 Unnamed citron 230626 H. Chapot, Rabat, Morocco 1955 3190 Dabbe (ops) 539418 H. Chapot, Rabat, Morocco 1959 3241 Citrus megaloxycarpa (ops) (Bor-tenga) (hybrid) 539446 Fruit Research Station, Burnihat Assam, India 1957 3487 Kulu “lemon” (ops) 539207 A.G. Norman, Botanical Garden, Ann Arbor MI 1963 3518 Citron of Commerce (ops) 539419 John Carpenter, USDCS, Indio CA 1966 3519 Citron of Commerce (ops) 539420 John Carpenter, USDCS, Indio CA 1966 3520 Corsican citron (ops) 539421 John Carpenter, USDCS, Indio CA 1966 3521 Corsican citron (ops) 539422 John Carpenter, USDCS, Indio CA 1966 3522 Diamante citron (ops) 539423 John Carpenter, USDCS, Indio CA 1966 3523 Diamante citron (ops) 539424 John Carpenter, USDCS, Indio -
In This Issue
The Fruit Leaff April http://www.crfg.org 2010 Next Meeting In this April 10, 2010 Emma Prusch Park issue Social and set-up 12:30 Next meeting .................... 1 Lindcove citrus ................ 2 Meeting 1pm to 4pm The Banana Report .......... 5 Victory Gardens 2.0 ......... 7 Three Speakers in April! If you’ve ever wanted to build your own tree, here’s your chance to learn how to do it, at the annual green scionwood Membership exchange and April CRFG meeting. This month, CRFG is For information on chapter lucky to be hosting three citrus experts at Prusch Park, membership, notification starting at 1:00 in the afternoon on April 10th. of address and phone number changes, please Fixing what goes wrong contact: If you’ve ever had a citrus or avocado tree that didn’t do well, it might not have been your fault. You might have just picked the wrong variety for your conditions. Master Sara Sherfy gardener Nancy Garrison will talk about which citrus 9140 Paseo Tranquillo varieties are best for Bay Area microclimates. Gilroy, Ca 95020 (408) 825-9700 And if you need to know what’s eating your orange tree, [email protected] Aaron Dillon of Four Winds Nursery might be able to help. He’ll give a talk about a myriad of citrus diseases and healthy cultivation practices. Submit articles or Build it yourself questions to: But perhaps the most interesting facet of the meeting is the green scionwood exchange, where you can find rare Lisa Stapleton varieties of oranges, lemons, avocados, guavas, sapotes, 4254 Indigo Dr. -
Improvement of Subtropical Fruit Crops: Citrus
IMPROVEMENT OF SUBTROPICAL FRUIT CROPS: CITRUS HAMILTON P. ÏRAUB, Senior Iloriiciilturist T. RALPH ROBCNSON, Senior Physiolo- gist Division of Frnil and Vegetable Crops and Diseases, Bureau of Plant Tndusiry MORE than half of the 13 fruit crops known to have been cultivated longer than 4,000 years,according to the researches of DeCandolle (7)\ are tropical and subtropical fruits—mango, oliv^e, fig, date, banana, jujube, and pomegranate. The citrus fruits as a group, the lychee, and the persimmon have been cultivated for thousands of years in the Orient; the avocado and papaya were important food crops in the American Tropics and subtropics long before the discovery of the New World. Other types, such as the pineapple, granadilla, cherimoya, jaboticaba, etc., are of more recent introduction, and some of these have not received the attention of the plant breeder to any appreciable extent. Through the centuries preceding recorded history and up to recent times, progress in the improvement of most subtropical fruits was accomplished by the trial-error method, which is crude and usually expensive if measured by modern standards. With the general accept- ance of the Mendelian principles of heredity—unit characters, domi- nance, and segregation—early in the twentieth century a starting point was provided for the development of a truly modern science of genetics. In this article it is the purpose to consider how subtropical citrus fruit crops have been improved, are now being improved, or are likel3^ to be improved by scientific breeding. Each of the more important crops will be considered more or less in detail. -
Asian Citrus Psyllid Control Program in the Continental United States
United States Department of Agriculture Asian Citrus Psyllid Marketing and Regulatory Control Program in the Programs Animal and Continental Plant Health Inspection Service United States and Puerto Rico Environmental Assessment August 2010 Asian Citrus Psyllid Control Program in the Continental United States and Puerto Rico Environmental Assessment August 2010 Agency Contact: Osama El-Lissy Director, Emergency Management Emergency and Domestic Programs Animal Plant Health Inspection Service U.S. Department of Agriculture 4700 River Rd. Unit 134 Riverdale, MD 20737 __________________________________________________________ The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, sex, religion, age, disability, political beliefs, sexual orientation, or marital or family status. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA’S TARGET Center at (202) 720–2600 (voice and TDD). To file a complaint of discrimination, write USDA, Director, Office of Civil Rights, Room 326–W, Whitten Building, 1400 Independence Avenue, SW, Washington, DC 20250–9410 or call (202) 720–5964 (voice and TDD). USDA is an equal opportunity provider and employer. __________________________________________________________ Mention of companies or commercial products in this report does not imply recommendation or endorsement by the U.S. Department of Agriculture over others not mentioned. USDA neither guarantees nor warrants the standard of any product mentioned. Product names are mentioned solely to report factually on available data and to provide specific information. __________________________________________________________ This publication reports research involving pesticides. All uses of pesticides must be registered by appropriate State and/or Federal agencies before they can be recommended. -
CITRUS BUDWOOD Annual Report 2017-2018
CITRUS BUDWOOD Annual Report 2017-2018 Citrus Nurseries affected by Hurricane Irma, September 2017 Florida Department of Agriculture and Consumer Services Our Vision The Bureau of Citrus Budwood Registration will be diligent in providing high yielding, pathogen tested, quality budlines that will positively impact the productivity and prosperity of our citrus industry. Our Mission The Bureau of Citrus Budwood Registration administers a program to assist growers and nurserymen in producing citrus nursery trees that are believed to be horticulturally true to varietal type, productive, and free from certain recognizable bud-transmissible diseases detrimental to fruit production and tree longevity. Annual Report 2018 July 1, 2017 – June 30, 2018 Bureau of Citrus Budwood Registration Ben Rosson, Chief This is the 64th year of the Citrus Budwood Registration Program which began in Florida in 1953. Citrus budwood registration and certification programs are vital to having a healthy commercial citrus industry. Clean stock emerging from certification programs is the best way to avoid costly disease catastrophes in young plantings and their spread to older groves. Certification programs also restrict or prevent pathogens from quickly spreading within growing areas. Regulatory endeavors have better prospects of containing or eradicating new disease outbreaks if certification programs are in place to control germplasm movement. Budwood registration has the added benefit in allowing true-to-type budlines to be propagated. The selection of high quality cultivars for clonal propagation gives growers uniform plantings of high quality trees. The original mother stock selected for inclusion in the Florida budwood program is horticulturally evaluated for superior performance, either by researchers, growers or bureau staff. -
AUSTRALIAN CITRUS TREE CENSUS 2014 Survey Scope 1,750 Businesses Contacted 1,064 Businesses in Report*
AUSTRALIAN CITRUS TREE CENSUS 2014 Survey Scope 1,750 businesses contacted 1,064 businesses in report* *It is estimated that an additional 2,500 hectares are not represented in this report. ACKNOWLEDGEMENTS The following personnel and agencies are INTRODUCTION acknowledged for their input and assistance in collecting data for the 2014 Citrus Tree Census. New South Wales Department of Primary Industries The Australian citrus industry is one of Australia’s largest Andrew Creek, Development Officer – Citrus horticulture industries, with commercial production in five States Tammy Galvin, Senior Land Services Officer (Projects) and one territory. Department of Agriculture and Food Western Australia It is one of Australia’s largest fresh produce exporters, exporting on average 160,000 tonnes Bronwyn Walsh, Value Chain Coordinator – Citrus per year, over the last ten years. While the industry’s size and output is significant in Australia, it comprises less than 0.5% of global production and is one of the highest cost producers in the Citrus Australia South Australia Region world, relying on its reputation for quality and safety to command premium prices in high paying Mark Doecke, Committee Member export markets. Anthony Fulwood, Committee Member The Citrus Tree Census is an online database developed by Citrus Australia to collect national Penny Smith Committee Member production statistics about variety, rootstock, tree age and hectares planted. This information is essential for: This project has been funded by Horticulture Innovation Australia Limited using the citrus industry levy and funds • Guiding growers when choosing which varieties to plant from the Australian Government. • Assisting the citrus supply chain with packing and logistics investment decisions and • Directing market development and research and development needs. -
Home-Grown Citrus Displayed at Show
Home-grown Citrus Displayed at Show Texas A&M AgriLife Extension Service — Galveston County Office November 27, 2013 PHOTO BY William M. Johnson Dr. William Johnson is a Area citrus growers submitted 176 entries for display and competition at the 2013 Upper horticulturist with the Gulf Coast Citrus Show held on November 21. Terry Cuclis (pictured above right) of Alvin Galveston County Office was awarded the Best of Show Rosette for his ‘BC-2’ satsuma and Ray Michalik of Brazoria of Texas A&M AgriLife was awarded the Reserve Champion Rosette for his ‘Rio Red’ grapefruit. Extension Service. Visit his website at http://aggie- I knew that visitors to our ton County AgriLife Ex- area including oranges, horticulture.tamu.edu/ Upper Gulf Coast Citrus tension Office in Carbide grapefruits, lemons, tan- galveston. Show held last Thursday Park. gerines and tangelos. News column printed in would very likely enjoy Residents were provided Area citrus growers sub- the Galveston Daily the exhibit display. I made an excellent opportunity mitted 146 entries for News, The Post, and it a point to be near the to become better edu- display. If you would like other Galveston County registration desk when cated at successfully to know what types of Newspapers. visitors enter the building. growing citrus through citrus can be grown It’s always fun to hear educational programs here, look over the fol- visitors say "It smells won- provided by Monte lowing list of ribbon and derful!" or "What a de- Nesbitt from Texas A&M rosette winners. lightful range of fra- in College Station. -
Physiology of Citrus Fruiting
REVIEW Physiology of citrus fruiting Domingo J. Iglesias, Manuel Cercós, José M. Colmenero-Flores, Miguel A. Naranjo, Gabino Ríos, Esther Carrera, Omar Ruiz-Rivero, Ignacio Lliso, Raphael Morillon1, Francisco R. Tadeo and Manuel Talon* Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias, Apdo. Oficial, 46113 Moncada, Valencia, Spain. 1Centre de Coopération Internationale en Recherche Agronomique pour le Dévelopement (CIRAD), San Giuliano (Corse), F-20230, France. *Corresponding author: [email protected] Received: 31 October 2007; Accepted: 02 November 2007 Citrus is the main fruit tree crop in the world and therefore has a tremendous economical, social and cultural impact in our society. In recent years, our knowledge on plant reproductive biology has increased considerably mostly because of the work developed in model plants. However, the information generated in these species cannot always be applied to citrus, predominantly because citrus is a perennial tree crop that exhibits a very peculiar and unusual reproductive biology. Regulation of fruit growth and development in citrus is an intricate phenomenon depending upon many internal and external factors that may operate both sequentially and simultaneously. The elements and mechanisms whereby endogenous and environmental stimuli affect fruit growth are being interpreted and this knowledge may help to provide tools that allow optimizing production and fruit with enhanced nutritional value, the ultimate goal of the Citrus Industry. This article will review the progress that has taken place in the physiology of citrus fruiting during recent years and present the current status of major research topics in this area. Key words: abiotic stresses, abscission, color break, flowering, fruit set, ripening Fisiologia da frutificação em citrus. -
Heppner, J. B. 1993. Citrus Leafminer, Phyllocnistis Citrella, in Florida
Vol. 4 No. 1 1993 HEPPNER: Citrus Leafminer in Florida 49 TROPICAL LEPIDOPTERA, 4(1): 49-64 CITRUS LEAFMINER, PHYLLOCNISTIS CITRELLA, IN FLORIDA (LEPIDOPTERA: GRACILLARIIDAE: PHYLLOCNISTINAE) J. B. HEPPNER1 Florida State Collection of Arthropods, DPI, FDACS, P. O. Box 147100, Gainesville, Florida 32614-7100, USA ABTRACTleafminer, Phyllocnistis citrella Stainton, a pest of citrus and related Rutaceae in Asia, is reported as established in southern Florida from a recent introduction. Current distribution in Florida is noted, as well as potential native Rutaceae in Florida that larvae of citrus leafminer may attack. All known hostplants and parasitoids are listed. A bibliography of all citrus leafminer literature is included. KEY WORDS: Africa, Asia, Australian, biology, Braconidae, Chalcidoidea, Chrysopidae, distribution, Elasmidae, Encyrtidae, endangered species, Ethiopian, Eulophidae, Eurytomidae, hostplants, Hymenoptera, Lauraceae, Leguminosae, Loranthaceae, Nearctic, Neuroptera, North America, Oceania, Oleaceae, Oriental, Papilionidae, parasitoids, pheromones, Pteromalidae, Rutaceae, Tiliaceae. The citrus leaf miner, Phyllocnistis citrella Stainton, is a serious pest of citrus and related species of the plant family Rutaceae. In most parts of southern Asia, Australia, and east Africa, where it is present, it is considered one of the major citrus pests. In late May 1993 the citrus leafminer (or CLM) was discovered in southern Florida, the first record of this pest for Florida, the continental United States, and the New World (Heppner, 1993). CLM has once previously been intercepted in the USA in 1914 (ports not noted) on citrus and Atalantia horticulture stock imports (Sasscer, 1915). Phyllocnistis citrella, originally described from India (Stainton, 1856), was confirmed by Don Davis, a specialist in the Gracillar- iidae family, at the Smithsonian Institution (USNM). -
A Historical Note on Two Unreported Obstacles for Cross-Protecting Mature Citrus Trees Against Severe Citrus Tristeza Virus Isolates
Letter to the Editor A historical note on two unreported obstacles for cross-protecting mature citrus trees against severe Citrus tristeza virus isolates. M Bar-Joseph1* 1 The S Tolkowsky Laboratory, ARO, The Volcani Center, Bet Dagan 50250, Israel. *Correspondence to: [email protected] Citation: Bar-Joseph M. 2015. A historical note on two unreported obstacles for cross-protecting mature citrus trees against severe Citrus tristeza virus isolates. J Cit Pathol. iocv_journalcitruspathology_28534. ____________________________________________________________________________________________________ During the years 1970 to 1986 the Israeli citrus experiment to prevent decline was established in a mature industry had undertaken a costly and ambitious program (around 20 years old) Valencia orange grove grafted on for suppressing the outbreak of a Citrus tristeza virus sour orange. The experimental plot was part of the Yachin (CTV) epidemic. For comprehensive reviews of CTV and Company Morasha plantation located east of Tel Aviv. In the tristeza disease see Dawson et al. (2013), Moreno et this area an extremely severe isolate Mor-T (Ben-Zeev et al. (2008), and Bar-Joseph et al. (1989). The program, al. 1988), belonging to the VT strain (Mawassi et al. which involved millions of ELISA tests, was a 1993; Shalitin et al. 1994) was causing rapid decline of coordinated effort of virus research, extension, and Minneola tangelo, Valencia, and Shamouti orange trees at regulatory agencies funded by the local citrus marketing early stages of natural infection. Trees of sensitive board and the Ministry of Agriculture. These major combinations infected by Mor-T were showing quick commitments of CTV control by a “search and destroy” decline long before the virions pervaded the canopies to strategy were based on statistical analyses indicating that allow routine detection by ELISA (Ben-Zeev et al.