From the Archives: Traveling Citrus in New Zealand

Florida Southern College’s Citrus Institute aimed to give students not only an exceptional in-classroom education, but also a hands-on experience; with citrus groves planted all around campus, students had a learning experience unlike any other. The faculty were also well versed in the different techniques used all over the world thanks to their own hands on learning. Professor Tom Mack spent time in New Zealand in 1982 and spent his time abroad learning more about their citrus culture.
 
New Zealand is located on the limit for citrus culture and only on the northern and north eastern sections of the north island can citrus be feasibly grown. Ideal conditions for citrus include warm and sunny positions and temperature ranging from 50-55 degrees Fahrenheit; anything below 45 could possibly kill the plants. Upon hearing this, one can understand why Florida is the ideal place for citrus production. The lack of sunshine during the summers in New Zealand results in small, slow growing fruits, usually with poor yield.

During his time in New Zealand, Mack was able to see several similarities and differences in planting habits. The country is known for its strong winds in an effort to protect citrus cultures; they plant windbreakers which have been effective in sheltering the plants up to a specific distance. They also grew citrus crops on significantly smaller areas in order to grow more plants per the area to secure a reasonable income for the grower. They did not have significant issues with pests or diseases killing crops, but they continue to take precautions to ensure that this remains the reality. Mack remarks on the fumigation process that takes place the moment an airplane lands in the country.

New Zealand is far from being one of the world's top producers in citrus, but they are well on their way in kiwifruit. Growers in different parts of the country were seen to be growing kiwifruit in between the citrus plantings in the hopes of cutting down the citrus trees once the kiwifruit has matured. Mack ends his account commenting on how the New Zealand citrus industry will never be a threat to the Florida citrus grower. Currently,  New Zealand makes up about 0.05% of the world's citrus production. Safe to say, Professor Mack was right in his conclusion.

Written by Tanzy Zviitwah, Florida Citrus Hall of Fame Fellow
In partnership with Florida Southern College’s McKay Archives Center
Fall 2023

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Source:

Mack, Thomas B. History of the Citrus Institute, Florida Southern College, 1947-1993. Lakeland, Florida: Florida Southern College, 1993.

From the Archives: FSC Citrus Institute Chimeras

In History of the Citrus Institute, Professor Thomas B. Mack talks about how the citrus department was always trying to expand their audience past citrus majors and hit all sectors of campus life while engaging all students in one way or another. In the 1960s to 1980s, the citrus department created a “Plant of the Day” display that was placed between the citrus and physics wings. Chimeras were one of the most popular sites on display because of their humorous appearance. The citrus department created this display as an attempt to reach out and connect to the larger student body that were not involved with the citrus department.

A chimera is a mutant that results from an organism that has cells where two different genes are present causing them to both be expressed in the cell. This can be seen in a variety of organisms; for example, a rose can be half red and half white because it has both genes that are coding for the color white and for the color red being expressed.

A chimera is also different from a hybrid because of how the cells are oriented. A hybrid is an organism that has genes from two different species coexisting within one cell while a chimera has genes from two different species existing in separate cells. This means the tissue, the body of the cells, in a chimera are made from genes of two different organisms.

A specific chimera collected in the citrus department had an usually large section making it resemble a cantaloupe. As an April Fool’s prank, the department decided to name it the Orange-A-Loupe and convinced non-citrus majors they had created a cross between an orange and a cantaloupe, an impossible feat. Along with the Orange-A-Loupe, there were several other humorous chimeras placed on display for all of campus to see. 

 

Written by Tanzy Zviitwah, Florida Citrus Hall of Fame Fellow
In partnership with Florida Southern College’s McKay Archives Center
Fall 2023

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Source: 

Mack, Thomas B. History of the Citrus Institute, Florida Southern College, 1947-1993. Lakeland, Florida: Florida Southern College, 1993.

From the Archives: Citrifacts!

The “From the Archives'' series is back! In these blogs, we will be discussing the history of Florida Southern College’s Citrus Institute as well as some of Professor Tom Mack’s personal endeavors.

 

To start us off, we will be discussing Citrifacts. In September 1983, Prof. Mack wrote the first Citrifact column in the Citrus Industry magazine. This column was seen monthly in the magazine from 1983 until 1999. This column continued to be seen in the magazine as space permitted under the title “It’s a Citrifact,” referencing the original Citrifact column from the ‘80s. It presumably ceased to be published in 2004 following the death of Prof. Mack. This column was used to give some piece of information on citrus whether it was background on an existing system or new information that was recently published. The first Citrifact was about the origin of citrus concentrate in 1920. This article explains how Dr. J. E. Crump, a veterinarian and citrus grower, was the first to produce citrus concentrate in an ice cream freezer. 

 

Citrus concentrate is a powdered juice that can be used to make things taste like citrus. The production of citrus concentrate was a game changer for the citrus industry because this allowed growers the ability to sell citrus year-round. As the citrus industry grew larger and larger, growers began to look for more ways to store excess crops; this is where concentrate comes into the picture. 

 

Creating concentrate is a multi-step process. After harvesting, the fruits are juiced, and the juice is collected. The juice is then strained leaving a clear liquid and is evaporated to remove any water from the solution. This liquid is then deoxygenated meaning all dissolved oxygen is removed from solution; this is done to prevent oxidation from taking place because oxidation can cause rotting. The product then goes through another round of evaporation; it is then cooled and packed away in storage for later use. When it is time to use, the concentrate can be rehydrated by the addition of water.

 

 

Written by Tanzy Zviitwah, Florida Citrus Hall of Fame Fellow
In partnership with Florida Southern College’s McKay Archives Center
Fall 2023

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Sources:
 

Mack, Thomas B. Citrifacts. Bartow, Florida: Associated Publications Corporation, 1992.

 

Powers, John Robert and Robert Sidney Moore, Barry Jay Anderson, Galen Edward Downton, Judith Ann Kennedy, Donald Raymond Kearney, and David Arthur Strang. 1983. Process for Preparing Citrus Juice Concentrate. European Patent EP0110638A2, filed November 18, 1983, and issued June 13, 1984. https://patents.google.com/patent/EP0110638A2/en.

From the Archives: O.J. the Jumping Frog

In California during May 1965, an event would take place that would forge the story of an unlikely star. This event, referred to as the Calaveras County Frog Jump contest, was to be held on the 19th of the month to try and find the “jumpingest” frog in the world. This was where a star was born. Captured the Monday before his big event, Polk County’s champion was pampered at Dick Pope Sr.’s Cypress Garden by water skiers in an attempt to train him to hop over water. These skiers also wanted to build up the ego of the frog, so that he would have the confidence required to bring home the gold medal. To inflate his amphibious ego further, he gained sponsorship from the Florida Citrus Commission who planned to keep him pampered and fresh. After his intense training, the frog was airlifted from Tampa to Sacramento to take place in his jump. Dubbed the name O.J., for it was claimed he was trained on orange juice that increased his advantage by 500%, the frog that was unknown just 24 hours before had the fate of Polk County’s fame relying on his giant legs. The day of the event came, and through over half the event, it seemed as though O.J.’s name would go down in frog history. Steadily moving towards the top of the ranking, everything was going his way. Sadly, however, his 9 foot, 1¾ inch leap was not enough, for a few frogs beat him out for spots in the international competition. Even with the loss, it was thought O.J. would win the honor of longest traveled frog to compete, but an amphibian hailing from Africa would claim that prize. Even though he fell short of his ultimate goal, that he learned of a mere 48 hours before, O.J. could still be proud that he was the “jumpingest” frog in the history of Polk County. With that honor, O.J. retired. His inspiring and legendary career was over after just two short days. O.J. settled down in Angel’s Camp, California and planned to live out the rest of his days in seclusion, but the limelight was not yet done with the superstar jumper. Scandal arose from Angel’s Camp as rumors about O.J. being romantically involved with California frogs hit the papers. His jockey, Mrs. Hildred Cooper, reported that O.J.’s decision to step away from jumping had more to do with the Californian succubi of frogs O.J. had been around than retiring for the peace of it. With that news leaked to the press, the Florida Citrus Commission launched a probe into the private life of O.J. the frog. When reached out to by The Ledger frog editor, who spoke the native tongue of the frog, O.J. only had one thing to say about the rumors: “Nothin’ to it, nothin’ to it at all. I just shared a few flies with them. What’sa matter anyway? You don’t trust me or somethin’?” With the scandal put down and his name restored, O.J. lived the rest of his life in the peace he desired.

 

Written by Blake Hale, Florida Citrus Hall of Fame Fellow
In partnership with Florida Southern College’s McKay Archives Center
May 2023

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Source:
Frog Contest, 1965, James A. Haley Papers, 1948-1977, Box 123 Folder 13, Sarah D. and L. Kirk McKay, Jr. Archives Center, Florida Southern College, Lakeland, Florida.