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Recorded contributions to citrus breeding, introduction, and history.
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World of CitrusWorld of CitrusRecorded contributions to citrus breeding, introduction, and history.
15 credits across 11 varieties · United States Department of Agriculture
Hodgson’s historical account reproduced by UCR states that Rusk was described and released in 1905 by Webber and Swingle. The USDA Yearbook account of the 1897 hybrid was published in 1905.
United States
Conducted the breeding program through which CPB 4-5019 was produced and subsequently evaluated and distributed.
Washington navel orange was crossed with trifoliate orange in 1909 by E. M. Savage under W. T. Swingle’s direction at the U.S. Department of Agriculture; Hodgson (1967) reports that Savage and Gardner’s later study identified the resulting zygotic seedling CPB 4-5019 as the same clone known as Carrizo and Troyer.
United States
Sources: [17]
Federal citrus breeding program under which the cross was made and the resulting seedlings were maintained and evaluated.
Swingle and Robinson report that a series of lime–kumquat crosses was made in June 1909 in F. W. Savage's grove at Eustis, Florida. CPB 48798 is described as West Indian lime fertilized with pollen from round kumquat.
Eustis, Florida, United States
Conducted the citrus breeding program in which Clement Tangelo was created.
Walter T. Swingle produced Clement Tangelo through the United States Department of Agriculture by crossing Duncan grapefruit with Clementine mandarin.
Florida, United States
Sources: [3]
Maintained and evaluated the hybrid through its juvenile period and first fruiting.
CPB 48798, the limequat selection described by Swingle and Robinson, fruited in the USDA greenhouse in Washington, D.C., during summer 1918. The authors do not identify this as the first limequat fruiting.
Washington, District of Columbia, United States
Sources: [5]
Federal institution responsible for the breeding program and public introduction of Eustis Limequat.
Swingle and Robinson published a detailed description of the Eustis limequat and proposed its name in the same article. They presented it as a promising hardy, lime-like fruit for home gardens; this is the authors' assessment, not a modern trial result.
Washington, District of Columbia, United States
Maintained the Citremon breeding material supplied through Walter T. Swingle to the University of California collection.
UCR accession records identify Citremon CRC 1448 (cutting A) and CRC 1449 (cutting B) as cuttings received from W.T. Swingle, USDA, in June 1924.
Riverside, California, United States
USDA Circular 181 documents Clement tangelo among the hybrids selected for propagation and names the cultivar. It supports USDA documentation of the variety, but does not establish a formal agency introduction or release.
Clement Tangelo was introduced by the United States Department of Agriculture in 1931. The hybrid did not subsequently attain significant commercial importance.
United States
The U.S. Department of Agriculture released Minneola tangelo in 1931.
United States
Sources: [7]
USDA Circular 181 documents the reported first fruiting at Indio and proposed San Jacinto tangelo name; this is a documentation credit, not evidence of a formal agency release.
San Jacinto tangelo was introduced in 1931 after first fruiting at Indio, California. It was named for nearby San Jacinto Mountain.
Indio, California, United States
The UCR CRC 2603 profile records the USDA station at Sacaton as the source of budwood received by the University of California citrus collection in 1936. This credit describes that documented budwood source, not an introduction of the cultivar.
Budwood of Clement Tangelo was received from the United States Department of Agriculture station at Sacaton, Arizona, and accessioned into the University of California citrus collection as CRC 2603.
Riverside, California, United States
Sources: [1]
Robinson was released in 1959.
United States
Sources: [1]
P. C. Reece and F. E. Gardner described and released Page in 1963 through the U.S. Horticultural Field Station.
Orlando, Florida, United States
Federal institution responsible for the official 1964 release of Fairchild Mandarin.
Fairchild was released by the USDA in 1964 and recommended for the desert areas of California and Arizona.
United States