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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.
18 credits across 18 varieties · USDA Agricultural Research Service
UCR CRC 4122 records that Hirado Buntan seed was received by the USDA-ARS U.S. Horticulture Research Station in Orlando, Florida, in 1965.
UCR reports Hirado Buntan seed received by the USDA-ARS U.S. Horticulture Research Station in Orlando, Florida, in 1965. The same source separately identifies CRC 4122 as a pink-fleshed seedling selection of standard Hirado, made presumably in Florida during 1970–1980; it does not explicitly connect that selection to a particular seed shipment.
Orlando, Florida, United States
Sources: [1]
Released ‘Centennial’ Variegated kumquat in 1993.
‘Centennial’ Variegated kumquat was released by the Agricultural Research Service of the United States Department of Agriculture as an ornamental kumquat hybrid.
Sources: [1]
Released US-852 in August 1999.
USDA-ARS released US-852 in August 1999 for commercial rootstock trials in Florida. Long-term testing showed highly productive, medium-sized trees, good fruit quality, low root-sprout production, and useful resistance or tolerance to several important citrus diseases.
Florida, United States
Sources: [7]
Released US-812 in May 2001.
The USDA Agricultural Research Service released US-812 in May 2001 for unrestricted commercial use as a citrus rootstock.
United States
Released US-802 for commercial rootstock use in 2007.
The USDA Agricultural Research Service lists US-802 as released in 2007.
United States
Released US-897 for commercial rootstock use in 2007.
The Chiefland Budwood Facility (2010) reports that US-897 was released to industry in 2007; the Citrus Rootstocks index also lists the USDA release year as 2007.
United States
Released US-942 for commercial rootstock use in 2010.
USDA Agricultural Research Service released US-942 to nurserymen and growers in 2010. The official notice describes seed propagation, nursery results and trials of named grafted scions.
Florida, United States
US-1279, tested as BS95-V3-11, was released by USDA in September 2014 for commercial rootstock use in Florida. In Florida flatwoods trials after HLB infection, it induced superior Hamlin sweet-orange productivity and fruit quality; this is tolerance after infection, not resistance to infection.
Florida, United States
Released US-1281 Citrandarin for commercial use in September 2014.
The USDA Agricultural Research Service released US-1281 to nurserymen and growers in September 2014; the release document identifies it as selection BS95-V5-10. Kim D. Bowman planned and conducted selection, evaluation, and field testing, and Greg McCollum collaborated on fruit-quality evaluation from field trials. Reported performance concerns Hamlin scions in Florida flatwoods and ridge trials; the release cautions that flatwoods superiority was not clear at the ridge site.
United States
Released US-1282 Citrandarin for commercial use in September 2014.
USDA-ARS released US-1282 to nurserymen and growers. The agency document credits Kim D. Bowman with planning and conducting field testing and Greg McCollum with fruit-quality evaluation. In a St. Lucie flatwoods Hamlin-scion trial, seven trees per rootstock yielded 63 kg/tree on US-1282 and 19 kg/tree on Swingle in 2013; the release describes relative tolerance under HLB pressure, not resistance. Bowman & McCollum (2015) dates the USDA release to September 2014.
United States
Released US-1283 Citrandarin for commercial use in September 2014.
USDA-ARS released US-1283 in September 2014 for commercial use in areas threatened by HLB. Kim D. Bowman planned and conducted selection, evaluation, and field testing with industry partners; Greg McCollum collaborated in evaluating fruit quality from field trials. The release reports Hamlin sweet-orange scion trials at Florida flatwoods and ridge sites, with results qualified by site. These are grafted scion results, not fruit measurements of US-1283 itself.
United States
Released US-1284 Citrandarin for commercial use in September 2014.
The USDA Agricultural Research Service released US-1284 Citrandarin to nurserymen and growers for commercial use in Florida to address the need for rootstocks with improved HLB tolerance. The official release identifies Kim D. Bowman as field-testing lead and Greg McCollum as collaborator in fruit-quality evaluation. In the St. Lucie flatwoods trial, Hamlin on US-1284 yielded 63 kg/tree in 2013 after Las infection and improved nutrition; the Water Conserv II ridge trial showed no consistent yield advantage over Swingle across reported years, with a significant difference only in 2009. These are site-specific grafted-scion results, not fruit traits of US-1284.
United States
USDA Agricultural Research Service released US SuperSour 1 as a citrus rootstock on 2 November 2018.
United States
USDA Agricultural Research Service released US SuperSour 2 as a citrus rootstock on 2 November 2018.
United States
USDA Agricultural Research Service released US SuperSour 3 as a citrus rootstock on 2 November 2018.
United States
The USDA Agricultural Research Service released US SuperSour 4 in September 2023, according to the CRDF Project 21-008 quarterly report dated 2024-05-15. Bowman’s 2023 article also lists its release year as 2023. The CRDF report says the two newest USDA rootstocks were propagated for upcoming demonstration plantings and field trials.
United States
The USDA Agricultural Research Service released US SuperSour 5 in September 2023, according to the CRDF Project 21-008 quarterly report dated 2024-05-15. Bowman’s 2023 article also lists its release year as 2023. The CRDF report says the two newest USDA rootstocks were propagated for upcoming demonstration plantings and field trials.
United States