Gordie C. Hanna (July 1, 1903 – December 23, 1993, known as "Jack" Hanna) was a University of California-Davisagronomy professor who helped revolutionize the tomato-growing industry. He won the John Scott Award in 1976 for his development of a tomato variety capable of being machine-harvested.[1] The variety came to be known as the "square tomato," being slightly blockier, preventing it from rolling off conveyor belts.[2]
In the early 1940s, California’s tomato industry was threatened due to a lack of laborers to harvest the crops. In response, the UC Davis Agricultural Engineering department developed a mechanical tomato harvester. Unfortunately, the machine crushed the tomatoes. The University of California-Davis's Vegetable Crops department, led by Hanna, came to the rescue by breeding a firmer-skinned tomato.
However, he was tight-lipped about much of his early work. “When he first began trying to breed such a tomato in 1942, Hanna kept his idea to himself, unsure of what others at the university would think of it”.[3] “Perhaps for good reason: when his concept started to circulate, it was met with little support, in terms of both its technical feasibility and its anticipated negative impact on California agricultural labor.”[3] Hanna's creation, variety VF145,[3] became known as the square tomato, not because it was really square, but because its blockier shape prevented it from rolling off conveyor belts.[2]
Tomato harvesteredit
The development of the world’s first mechanical harvesting tomato wasn’t Hanna’s only contribution to tomato production. With the harvestable tomato in hand, in 1961 he teamed up with UC Davis agricultural engineer Coby Lorenzen (who also won the John Scott Award in 1976[1]) to develop a harvester to reap the hardier variety of tomato.[3] Engineering the equipment was no small challenge because tomato harvesting requires multiple functions, including cutting and lifting the vines, then separating the tomatoes from the vines.[4] During the 1950s, the UC Davis team refined the experimental harvester and in 1959 convinced a California company, Blackwelder Manufacturing, to commercialize the design.[4] Within three years of its introduction, the proportion of California's tomato acreage planted with mechanically harvestable tomatoes rose from 7 percent to 85 percent.[3]
While mechanical harvesting was initially controversial because it seemingly displaced human labor, it reduced harvesting costs by nearly one half and eliminated an economic constraint on the US processing tomato industry, resulting in large increases in tomato acreage and yield. Those increases, in turn, provided additional employment in field work, transportation and processing that more than offset the displaced harvesting jobs.[4]
Hanna also bred most of California’s disease-resistant asparagus and developed several internationally produced sweet potato varieties.[5]
Referencesedit
^ abJohn Scott Award Award Recipients 1971-1980, accessed 29 September 2009
^ abcdeUC Davis Plant Sciences, Major Figures in the History of Plant Breeding at UC Davis: Gordie ("Jack") C. Hanna 2010-06-12 at the Wayback Machine, accessed 29 September 2009
^ abcUC Tomato Harvester Designated as Historic Landmark, UC Davis News & Information, Oct. 27, 2005
^. Archived from the original on 2010-06-12. Retrieved 2010-10-10.
External linksedit
Photo of Hanna in 1951, from the UC Davis Library special collections
January 01, 1970
gordie, hanna, july, 1903, december, 1993, known, jack, hanna, university, california, davis, agronomy, professor, helped, revolutionize, tomato, growing, industry, john, scott, award, 1976, development, tomato, variety, capable, being, machine, harvested, var. Gordie C Hanna July 1 1903 December 23 1993 known as Jack Hanna was a University of California Davis agronomy professor who helped revolutionize the tomato growing industry He won the John Scott Award in 1976 for his development of a tomato variety capable of being machine harvested 1 The variety came to be known as the square tomato being slightly blockier preventing it from rolling off conveyor belts 2 Contents 1 Career 1 1 Harvestable tomato variety 1 2 Tomato harvester 2 References 3 External linksCareer editHarvestable tomato variety edit In the early 1940s California s tomato industry was threatened due to a lack of laborers to harvest the crops In response the UC Davis Agricultural Engineering department developed a mechanical tomato harvester Unfortunately the machine crushed the tomatoes The University of California Davis s Vegetable Crops department led by Hanna came to the rescue by breeding a firmer skinned tomato However he was tight lipped about much of his early work When he first began trying to breed such a tomato in 1942 Hanna kept his idea to himself unsure of what others at the university would think of it 3 Perhaps for good reason when his concept started to circulate it was met with little support in terms of both its technical feasibility and its anticipated negative impact on California agricultural labor 3 Hanna s creation variety VF145 3 became known as the square tomato not because it was really square but because its blockier shape prevented it from rolling off conveyor belts 2 Tomato harvester edit The development of the world s first mechanical harvesting tomato wasn t Hanna s only contribution to tomato production With the harvestable tomato in hand in 1961 he teamed up with UC Davis agricultural engineer Coby Lorenzen who also won the John Scott Award in 1976 1 to develop a harvester to reap the hardier variety of tomato 3 Engineering the equipment was no small challenge because tomato harvesting requires multiple functions including cutting and lifting the vines then separating the tomatoes from the vines 4 During the 1950s the UC Davis team refined the experimental harvester and in 1959 convinced a California company Blackwelder Manufacturing to commercialize the design 4 Within three years of its introduction the proportion of California s tomato acreage planted with mechanically harvestable tomatoes rose from 7 percent to 85 percent 3 While mechanical harvesting was initially controversial because it seemingly displaced human labor it reduced harvesting costs by nearly one half and eliminated an economic constraint on the US processing tomato industry resulting in large increases in tomato acreage and yield Those increases in turn provided additional employment in field work transportation and processing that more than offset the displaced harvesting jobs 4 Hanna also bred most of California s disease resistant asparagus and developed several internationally produced sweet potato varieties 5 References edit a b John Scott Award Award Recipients 1971 1980 accessed 29 September 2009 a b Columbus Dispatch 25 March 2008 Shape shifting a b c d e UC Davis Plant Sciences Major Figures in the History of Plant Breeding at UC Davis Gordie Jack C Hanna Archived 2010 06 12 at the Wayback Machine accessed 29 September 2009 a b c UC Tomato Harvester Designated as Historic Landmark UC Davis News amp Information Oct 27 2005 Gordie Jack C Hanna Major Figures in the History of Plant Breeding at UC Davis Dec 21 2006 Archived from the original on 2010 06 12 Retrieved 2010 10 10 External links editPhoto of Hanna in 1951 from the UC Davis Library special collections Retrieved from https en wikipedia org w index php title Gordie C Hanna amp oldid 1087847463, wikipedia, wiki, book, books, library,
