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Grape Variety: Zinfandel

Variety Name Zinfandel
TTB Approved Name(s) Zinfandel
Common Synonyms Crljenak kaštelanski, Pribidrag, Primitivo, Tribidrag
All Synonyms Crljenak kaštelanski, Kratošija, Morellone, Pribidrag, Primaticcio, Primativo, Primitivo, Primitivo di Gioia, Tribidrag, Uva della Pergola, Uva di Corato, Zenfendel, Zinfindal
Countries of Origin Croatia
Species Vitis vinifera
References
Berry Color Black
Uses Wine
Comments Zinfandel is the only important Vitis vinifera wine variety closely identified exclusively with California. It is believed that Zinfandel came to California via New York from the Austro-Hungarian Empire (which at the time included Croatia) around 1850. It was developed into the fourth leading wine grape variety in California. Genetic comparison showed that Zinfandel, Primitivo (Italy), Crljenak kaštelanski and Tribidrag/Pribidrag (Croatia) share the same DNA profile. Recent research from Croatia indicates that this variety was most likely known as Tribidrag when it was grown in Croatia centuries ago.

Zinfandel PhotosClick photo to enlarge

                                                                                                                       

Zinfandel Selections

Information about:          Selection Numbers     |     Registration Status
  Zinfandel 01A
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source Lodi, California, arrived at FPS in 1961
Treatments None
Comments Zinfandel 01A and Zinfandel 02 came to FPS in 1961 from a vineyard in Lodi owned by Leon Handel. The climate in the Lodi-Woodbridge area is amenable to growing good quality Zinfandel grapes due to the marine influences which permeate the San Joaquin Delta region of the Central Valley. San Joaquin County has led the state in total Zinfandel acreage since the middle of the last century. (Sullivan, C.L., 2003). Statistics reported by CDFA in the 2006 Grape Acreage report show that the San Joaquin Valley now has ~20,200 acres of Zinfandel (including Primitivo) of the ~50,000 acres of Zinfandel grapes planted in California.

The original plant material from Lodi tested negative for virus. Zinfandel 01A and 02 were registered in the California Grapevine Registration & Certification Program in 1962 without any kind of virus elimination treatment. Both selections are still available from FPS as California foundation stock. A tissue-cultured version of Zinfandel 01A has qualified for the Russell Ranch Foundation Vineyard (see Zinfandel 01A.1)

  Zinfandel 02
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source Lodi, California, arrived at FPS in 1961
Treatments None
Comments Zinfandel 01A and Zinfandel 02 came to FPS in 1961 from a vineyard in Lodi owned by Leon Handel. The climate in the Lodi-Woodbridge area is amenable to growing good quality Zinfandel grapes due to the marine influences which permeate the San Joaquin Delta region of the Central Valley. San Joaquin County has led the state in total Zinfandel acreage since the middle of the last century. (Sullivan, C.L., 2003). Statistics reported by CDFA in the 2006 Grape Acreage report show that the San Joaquin Valley now has ~20,200 acres of Zinfandel (including Primitivo) of the ~50,000 acres of Zinfandel grapes planted in California.

The original plant material from Lodi tested negative for virus. Zinfandel 01A and 02 were registered in the California Grapevine Registration & Certification Program in 1962 without any kind of virus elimination treatment. Both selections are still available from FPS as California foundation stock.

  Zinfandel 02.1
Registration Status Provisional Provisional Status is an important term used in the regulations of the California Department of Food & Agriculture's Grapevine Registration & Certification Program. Grapevine selections with Provisional Status have successfully completed all required disease testing, but have not been confirmed as true to variety. Propagation material from Provisional selections qualifies for release subject to the understanding on the part of the customer that the identity has yet to be confirmed.
  Zinfandel 03
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source Livermore, California, arrived at FPS in 1964
Treatments None
Comments Zinfandel FPS 03 came to Foundation Plant Services in 1964 from a vineyard (Reinhardt Reutz) near Livermore, California. Zinfandel has a long tradition in the Livermore Valley and was an important wine grape variety planted there as far back as 1885.

Zinfandel 03 did not receive heat treatment and first appeared on the list of registered selections for public distribution in 1965. A tissue-cultured version of Zinfandel 03 has qualified for the Russell Ranch Foundation Vineyard (see Zinfandel 03.1).

  Zinfandel 06 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source Zinfandel FPS 01A
Treatments Heat treatment 117 days
Comments Zinfandel FPS 06 was propagated from Zinfandel FPS 01A in 1966. The difference is that FPS 06 underwent heat treatment, while FPS 01A did not. FPS 06 first appeared on the registered list of the California Grapevine R & C Program in 1967. A tissue-cultured version of Zinfandel 06 has qualified for the Russell Ranch Foundation Vineyard (see Zinfandel 06.1).

  Zinfandel 09 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California Heritage Zinfandel clone 5
Treatments None
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 5, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 10 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California heritage Zinfandel clone, Teldeschi Vineyard, Dry Creek, Sonoma County
Treatments None, RSP+
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. Zinfandel FPS 10 was originally labeled "Heritage clone 10". In 2014, ZAP revealed the identity of four of the Heritage Zinfandel clones after publication of the results of taste testing. Zinfandel FPS 10 was collected from the Teldeschi Vineyards in the Dry Creek region of Sonoma County, California. The original vine material for this clone underwent microshoot tip tissue culture therapy at Foundation Plant Services to qualify for the Russell Ranch Foundation Vineyard as Zinfandel FPS 15.1. The other three clones that were identified in 2014 were Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 11 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California heritage Zinfandel clone 6
Treatments None, RSP+
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 6, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 12 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California heritage Zinfandel clone 4
Treatments None, RSP+
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 4, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 13 (proprietary) Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source Vineyard in Lake County, California
Treatments None
Proprietary Proprietary- cannot be distributed without written permission from owner.
Patented / Proprietary Proprietary
Comments Zinfandel 13 is a proprietary selection owned by Novavine Grapevine Nursery in Santa Rosa, California. The original plant material came to Foundation Plant Services in 1999 from an old vine Zinfandel vineyard owned by Milton and Ellen Heath. The vines of the Nova Zinfandel clone are grown in sandy loam soil on the Kelseyville benches (1300-2000 feet) at the base of Mount Konocti in Lake County. Jim Smith, who manages the source vineyard in Lake County, explained: “ The vines [of this clone] yield a versatile grape that is very ‘fruit forward’ with a nose that ‘jumps out of the glass’. Spiciness can be dictated by an open canopy (very fruity) or an extra-shaded canopy (heavy peppery characteristics).” Five wineries – Wild Hog, X Winery, DeLoach, Hall Crest, Jelly Jar - have produced unique and very different wines composed almost solely of fruit from this clone. All tests on Zinfandel 13 at FPS were negative for viruses, and it first appeared in the California Grapevine Registration & Certification Program in 2006. Plant material for Zinfandel 13 can be obtained through NovaVine, Inc., in Santa Rosa, California.

  Zinfandel 14 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California heritage Zinfandel clone 53
Treatments Microshoot tip tissue culture
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 53, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 15.1 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California heritage Zinfandel clone, Teldeschi Vineyard, Dry Creek, Sonoma County
Treatments Microshoot tip tissue culture
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. The original material for this selection, Zinfandel FPS 10, was originally labeled "Heritage clone 10". In 2014, ZAP revealed the identity of four of the Heritage Zinfandel clones after publication of the results of taste testing. Zinfandel FPS 10 was collected from the Teldeschi Vineyards in the Dry Creek region of Sonoma County, California. The original vine material (Zinfandel 10) underwent microshoot tip tissue culture therapy at Foundation Plant Services to qualify for the Russell Ranch Foundation Vineyard as Zinfandel FPS 15.1. The other three clones that were identified in 2014 were Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26/26.1 (Zeni Ranch, Mendocino County).

  Zinfandel 16 (proprietary) Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source Sonoma County, California, arrived at FPS in 1997
Treatments Microshoot tip tissue culture therapy
Proprietary Proprietary- cannot be distributed without written permission from owner.
Patented / Proprietary Proprietary
Comments Zinfandel 16 is an old-vine Zinfandel that is a proprietary selection owned by Kendall-Jackson for its Hartford Court label. The original plant material came to Foundation Plant Services in 1997 from a vineyard located on Wood Road in Forestville, Sonoma County, approximately 15 miles from the Pacific Coast. The vineyard was originally planted in the early 1900’s, and the vines are head-trained on St. George rootstock.

Zinfandel 16 was produced by microshoot tip tissue culture therapy from the original Wood Lane plant material and became registered in the California Grapevine Registration & Certification Program 2006.

  Zinfandel 17 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California Heritage Zinfandel clone 46
Treatments Microshoot tip tissue culture
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 46, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 18 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California Heritage Zinfandel clone 60
Treatments Microshoot tip tissue culture therapy
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 60, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 19 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California Heritage Zinfandel clone 61
Treatments Microshoot tip tissue culture therapy
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 61, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 21 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
  Zinfandel 22 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California Heritage Zinfandel clone 19
Treatments None, RSP+
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 19, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 23 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California heritage Zinfandel clone 23
Treatments None, RSP+
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 23, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 24 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California Heritage Zinfandel clone, from Lytton Springs, Sonoma County, California
Treatments None
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930's vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This clone was originally labeled "Heritage clone 31". In 2014, ZAP revealed the identity of four of the Heritage Zinfandel clones after publication of the results of taste testing. Zinfandel FPS 24/24.1 was collected from the Lytton Springs vineyard in Sonoma County, California - now owned by Ridge Vineyards. The other three clones that were identified in 2014 were Zinfandel FPS 25 (R.W. Moore Vineyard, Napa County), Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County) and Zinfandel FPS 26/ 26.1 (Zeni Ranch, Mendocino County).

  Zinfandel 25 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California Heritage Zinfandel, R.W. Moore Vineyard, Napa County
Treatments None
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. Zinfandel FPS 25 was originally labeled "Heritage clone 38". In 2014, ZAP revealed the identity of four of the Heritage Zinfandel clones after publication of the results of taste testing. Zinfandel FPS 25/25.1 was collected from the R.W. Moore Vineyard in the Napa Valley Coombsville appellation. This clone has qualified for the Russell Ranch Foundation Vineyard at Foundation Plant Services as Zinfandel 25.1. The other three clones that were identified in 2014 were Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County) and Zinfandel FPS 26/26.1 (Zeni Ranch, Mendocino County).

  Zinfandel 26 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California Heritage Zinfandel clone, Zeni Ranch, Mendocino County, CA
Treatments None, RSP+
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. Zinfandel FPS 26 was originally labeled "Heritage clone 44". In 2014, ZAP revealed the identity of four of the Heritage Zinfandel clones after publication of the results of taste testing. Zinfandel FPS 26/26.1 was collected from the Zeni Ranch in Mendocino County, California. The original material underwent microshoot tip tissue culture therapy at FPS in 2002 and qualified for the Russell Ranch Foundation Vineyard as Zinfandel 26.1. The other three clones that were identified in 2014 were Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County).

  Zinfandel 27 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source Heritage Zinfandel Project clone 49
Treatments None
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 49, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 28 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California Heritage Zinfandel clone 52
Treatments Microshoot tip tissue culture therapy
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 52, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 29 (proprietary) Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source Zinfandel FPS 08 in 1996
Treatments Microshoot tip tissue culture therapy
Proprietary Proprietary- cannot be distributed without written permission from owner.
Patented / Proprietary Proprietary
Comments Zinfandel 29 is proprietary to Dempel Farming Co. and its licensees. This selection was created from former Zinfandel FPS 08, which underwent microshoot tip tissue culture treatment at Foundation Plant Services in 1996 after testing positive for virus. The resulting treated material, Zinfandel FPS 29, qualified for the California Grapevine Registration & Certification Program and was planted in the Classic Foundation Vineyard in 2008. Mr. Dempel has named the clone the 'Baldocchi Zinfandel clone' in honor of his friend, Dewey Baldocchi, a wine maker and pioneer in the Sonoma County grape industry. (Howie, Millie. 1999).

  Zinfandel 29.1 (proprietary) Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source Zinfandel FPS 08 in 1996
Treatments Microshoot tip tissue culture therapy
Proprietary Proprietary- cannot be distributed without written permission from owner.
Patented / Proprietary Proprietary
Comments Zinfandel 29 is proprietary to Dempel Farming Co. and its licensees. This selection was created from former Zinfandel FPS 08, which underwent microshoot tip tissue culture treatment at Foundation Plant Services in 1996 after testing positive for virus. The resulting treated material, Zinfandel FPS 29, qualified for the California Grapevine Registration & Certification Program and was planted in the Classic Foundation Vineyard in 2008. Zinfandel 29 qualified for the Russell Ranch Foundation Vineyard in 2015 where it is known as Zinfandel 29.1. Mr. Dempel has named the clone the 'Baldocchi Zinfandel clone' in honor of his friend, Dewey Baldocchi, a wine maker and pioneer in the Sonoma County grape industry. (Howie, Millie. 1999).

  Zinfandel 30 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California Heritage Zinfandel clone 1
Treatments Microshoot tip tissue culture
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 1, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 31 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California Heritage Zinfandel clone 16
Treatments Microshoot tip tissue culture therapy
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 16, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 32 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California Heritage Zinfandel clone 36
Treatments Microshoot tip tissue culture therapy
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 36, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 33 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California heritage Zinfandel selection 36
Treatments Microshoot tip tissue culture therapy
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 36, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 35 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source Zinfandel Shenandoah, Amador County, via Duarte Nursery, Hughson, California
Treatments None
Comments Zinfandel 35 was donated to the Foundation Plant Services public collection in 2009 by Duarte Nursery in Hughson, California. Duarte has given it the clone name of ‘Zinfandel Shenandoah’, which was collected in Amador County. The selection successfully completed disease testing and qualified for the California Grapevine R&C Program in 2011.

  Zinfandel 36 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California Heritage Zinfandel clone 48
Treatments None
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 48, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 37 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California Heritage Zinfandel clone 55
Treatments None
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 55, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 38 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California Heritage Zinfandel clone 72
Treatments None
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 72, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 39 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California Heritage Zinfandel clone 79
Treatments None
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 79, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County). See also Zinfandel FPS 39.1.

  Zinfandel 40 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source California Heritage Zinfandel clone 89
Treatments None
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 89, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County).

  Zinfandel 41 (proprietary) Top
Registration Status Provisional Provisional Status is an important term used in the regulations of the California Department of Food & Agriculture's Grapevine Registration & Certification Program. Grapevine selections with Provisional Status have successfully completed all required disease testing, but have not been confirmed as true to variety. Propagation material from Provisional selections qualifies for release subject to the understanding on the part of the customer that the identity has yet to be confirmed.
Source Grey Creek Viticultural Services
Treatments None
Proprietary Proprietary- cannot be distributed without written permission from owner.
Patented / Proprietary Proprietary
Comments This proprietary selection came to Foundation Plant Services in 2010 from Grey Creek Viticultural Services. The selection successfully completed disease testing in 2012 and was released into the California Grapevine R&C Program.

  Zinfandel 43.1 Top
Registration Status Registered Registered is the ultimate status in the California Department of Food & Agricultures Grapevine Registration & Certification Program. Registered selections have successfully completed all disease testing required by the regulations. Registered selections have also been confirmed as true to variety by experts using visual observations, DNA-based testing or both.
Source Svinšce, Croatia
Treatments Microshoot tip tissue culture therapy
Comments Zinfandel FPS 43.1 was formerly known at FPS as Pribidrag FPS 01. The name was changed to Zinfandel to reflect the preferred name for the cultivar in the United States. Zinfandel 43.1 is Pribidrag clone VV-079 from Svinšce, Croatia. Svinšce is near the Dalmatian coastal town of Omiš, Croatia. The selection was imported to Foundation Plant Services in 2005 as a joint proprietary selection for Ridge Vineyards and the University of Zagreb in Croatia. The original material tested positive for virus and underwent microshoot tip tissue culture disease elimination therapy in 2007. The selection successfully completed disease testing in 2011 and qualified for the California R&C Program, initially as Pribidrag 01. The selection was renamed and given a new selection number in 2012. FPS has two other unique 'Pribidrag' clones: Zinfandel FPS 44.1 (formerly Pribidrag FPS 02) is Croatian clone VV-101 also from Svinšce; and there is a third clone from Marusici, Croatia, that is still in the testing/treatment process at FPS.

  Zinfandel 53 Top
Registration Status Provisional Provisional Status is an important term used in the regulations of the California Department of Food & Agriculture's Grapevine Registration & Certification Program. Grapevine selections with Provisional Status have successfully completed all required disease testing, but have not been confirmed as true to variety. Propagation material from Provisional selections qualifies for release subject to the understanding on the part of the customer that the identity has yet to be confirmed.
Source Heritage Zinfandel Project clone 81
Treatments None
Comments The California Heritage Zinfandel Project is an ongoing collaboration between Zinfandel Advocates and Producers (ZAP) and the University of California. The Zinfandel clones in the project were collected in the 1990's from historic old vine plantings in geographically diverse regions throughout California. The pre-1930’s vineyards were located in fourteen California counties, from Mendocino to San Bernardino. The team specifically sought vines with loose clusters and small berries. Evaluation and wine trials have been conducted on the clones since 1997. The identity of the clones has been reserved during the evaluation period in order to encourage objective assessments. This selection was originally designated Zinfandel Heritage clone 81, and the source remains confidential at this time. In 2014, ZAP revealed the identity (source) of four of the Heritage Zinfandel clones after publication of the results of a taste testing. The identity of those four clones is: Zinfandel FPS 10/15.1 (Teldeschi Vineyard, Dry Creek, Sonoma County), Zinfandel FPS 24/24.1 (Lytton Springs Vineyard, Sonoma County), Zinfandel FPS 25/25.1 (R.W. Moore Vineyard, Napa County), and Zinfandel FPS 26 (Zeni Ranch, Mendocino County). See also Zinfandel FPS 39.1.

  Zinfandel 55 Top
  More information regarding selection available soon.