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ARS Home » Pacific West Area » Parlier, California » San Joaquin Valley Agricultural Sciences Center » Crop Diseases, Pests and Genetics Research » People & Locations » Craig Ledbetter

Craig A Ledbetter (PhD)
Crop Diseases, Pests and Genetics Research
Research Geneticist

Phone: (559) 596-2817
Fax: (559) 596-2921

9611 S. RIVERBEND AVE.
PARLIER, CA 93648
Projects
Breeding Prunus and Vitis Scions for Improved Fruit Quality and Durable Pest Resistance
In-House Appropriated (D)
  Accession Number: 434625
VitisGen2: Application of Next Generation Technologies to Accelerate Cultivar Development
Reimbursable Cooperative Agreement (R)
  Accession Number: 434292
Breeding and Evaluation of Seedless Table Grapes with Superior Quality Including Types Resistant to Powdery Mildew
Trust Fund Cooperative Agreement (T)
  Accession Number: 436612
Breeding and Evaluation of Seedless Table Grapes Including Types Resistant to Powdery Mildew
Trust Fund Cooperative Agreement (T)
  Accession Number: 437784

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Update on USDA table grape breeding efforts in the San Joaquin Valley - (Proceedings)
Ledbetter, C.A. 2020. Update on USDA table grape breeding efforts in the San Joaquin Valley. Meeting Proceedings for 2020 Table Grape Seminar, Feb 27, 2020, Visalia, CA.
Haplotyping the Vitis collinear core genome with rhAmpSeq improves marker transferability in a diverse genus - (Peer Reviewed Journal)
Zou, C., Karn, A., Reisch, B., Nguyen, A., Sun, Y., Bao, Y., Campbell, M.S., Church, D., Williams, S., Xu, X., Ledbetter, C.A., Patel, S., Fennell, A., Glaubitz, J., Clark, M., Ware, D., Londo, J.P., Sun, Q., Cadle Davidson, L.E. 2020. Haplotyping the Vitis collinear core genome with rhAmpSeq improves marker transferability in a diverse genus. Nature Communications. https://doi.org/10.1038/s41467-019-14280-1.
Insights for understanding ‘Nemaguard’ immunity mechanism against Xylella fastidiosa - (Abstract Only)
Krugner, R., Ledbetter, C.A., Rogers, E.E., Burbank, L.P. 2019. Insights for understanding ‘Nemaguard’ immunity mechanism against Xylella fastidiosa. CDFA Pierce's Disease Control Program Research Symposium. p. 133.
‘Solbrio’ table grape Reprint Icon - (Peer Reviewed Journal)
Ledbetter, C.A. 2019. ‘Solbrio’ table grape. HortScience. 54(10):1864-1865. https://doi.org/10.21273/HORTSCI14311-19.
Nemaguard’ xylem sap is not an effective mouth wash for Xylella fastidiosa-infected vectors - (Proceedings)
Krugner, R., Ledbetter, C.A., Rogers, E.E. 2019. Nemaguard’ xylem sap is not an effective mouth wash for Xylella fastidiosa-infected vectors. In: Proceedings of the Second European conference on Xylella fastidiosa 2019, October 29-30, 2019, Ajaccio, France. p. 86.
Marker-assisted selection is making table grape breeding more efficient ()
Martinson, T.E., Ledbetter, C.A., Naegele, R.P. 2019. Marker-assisted selection is making table grape breeding more efficient. American Vineyard. 28(3):10-11.
Maintaining product quality in raisins throughout the introgression of powdery mildew resistance Reprint Icon - (Peer Reviewed Journal)
Ledbetter, C.A., Lee, S.A. 2019. Maintaining product quality in raisins throughout the introgression of powdery mildew resistance. Journal of Horticultural Science and Biotechnology. 94(4):460-467. https://doi.org/10.1080/14620316.2018.1561213.
The genetic dissection of the natural dry-on-vine (NDOV) trait in grapevine - (Proceedings)
Fresnedo Ramirez, J., Lee, S.A., Ledbetter, C.A. 2019. The genetic dissection of the natural dry-on-vine (NDOV) trait in grapevine. Acta Horticulturae. 1248:409-416.
Preliminary findings support that vector feeding behaviors controlling inoculation of Xylella fastidiosa are performed less on three backcross siblings of PdR1 parents than on Chardonnay - (Abstract Only)
Backus, E.A., Ledbetter, C.A. 2018. Preliminary findings support that vector feeding behaviors controlling inoculation of Xylella fastidiosa are performed less on three backcross siblings of PdR1 parents than on Chardonnay. CDFA Pierce's Disease Control Program Research Symposium. p. 167.
Diversity of Xylella fastidiosa host suitability among siblings from a non-traditional almond X peach cross Reprint Icon - (Peer Reviewed Journal)
Ledbetter, C.A., Lee, S.A. 2018. Diversity of Xylella fastidiosa host suitability among siblings from a non-traditional almond X peach cross. Euphytica. 214:84. https://doi.org/10.1007/s10681-018-2167-6.
Register of New Fruit and Nut Varieties List 49 ()
Ledbetter, C.A. 2018. Register of New Fruit and Nut Varieties List 49. HortScience. 53(6):748-776.
Trialing apricots in Riverside, California: Identifying cultivars suitable for culture in a low-chill environment - (Peer Reviewed Journal)
Ledbetter, C.A., Krueger, R. 2017. Trialing apricots in Riverside, California: Identifying cultivars suitable for culture in a low-chill environment. Advances in Plants and Agriculture Journal. 7(6):281-287.
SMRT sequencing of the Vitis vinifera cv. ‘Flame seedless’ genome using a SMRTbell-free library preparation from Swift Biosciences - (Abstract Only)
Goodwin, S., Cadle Davidson, L.E., Campbell, M., Xu, X., Wappel, R., Regulski, M., Ledbetter, C.A., Naegele, R.P., Mccombie, R., Ware, D. 2018. SMRT sequencing of the Vitis vinifera cv. ‘Flame seedless’ genome using a SMRTbell-free library preparation from Swift Biosciences. Annual International Plant & Animal Genome Conference. 1.
An integrative AmpSeq platform for highly multiplexed marker-assisted pyramiding of grapevine powdery mildew resistance loci Reprint Icon - (Peer Reviewed Journal)
Fresnedo, J., Yang, S., Sun, Q., Cote, L., Schweitzer, P., Reisch, B., Ledbetter, C.A., Luby, J., Clark, M., Londo, J.P., Gadoury, D., Kozma, P., Cadle Davidson, L.E. 2017. An integrative AmpSeq platform for highly multiplexed marker-assisted pyramiding of grapevine powdery mildew resistance loci. Molecular Breeding. 37(145). https://doi.org/10.1007/s11032-017-0739-0.
Screening almond rootstocks for sources of resistance to Armillaria root disease Reprint Icon - (Peer Reviewed Journal)
Baumgartner, K., Fujiyoshi, P.T., Ledbetter, C.A., Duncan, R., Kluepfel, D.A. 2018. Screening almond rootstocks for sources of resistance to Armillaria root disease. HortScience. 53(1):4-8. https://doi.org/10.21273/HORTSCI12038-17.
Towards the elucidation of the cytoplasmic diversity of North American Grape Breeding Programs - (Peer Reviewed Journal)
Fresnedo-Ramirez, J., Sun, Q., Hwang, C., Ledbetter, C.A., Ramming, D.W., Fennell, A., Walker, A., Luby, J., Clark, M., Londo, J.P., Cadle Davidson, L.E., Zhong, G., Reisch, B. 2016. Towards the elucidation of the cytoplasmic diversity of North American Grape Breeding Programs. Molecular Breeding. 36:116.
Structure-function characterization of the crinkle-leaf peach wood phenotype: a future model system for wood properties research? - (Peer Reviewed Journal)
Wiedenhoeft, A.C., Arevalo, R., Ledbetter, C.A., Jakes, J. 2016. Structure-function characterization of the crinkle-leaf peach wood phenotype: a future model system for wood properties research? JOM: The Member Journal of TMS. 68(9):2405-2412. doi: 10.1007/s11837-016-2057-0.
Lessons from a phenotyping center revealed by the genome-guided mapping of powdery mildew resistance loci - (Peer Reviewed Journal)
Cadle Davidson, L.E., Gadoury, D., Fresnedo, J., Yang, S., Barba, P., Sun, Q., Seem, R., Schaub, M.L., Nowogrodzki, A., Kasinathan, H., Ledbetter, C.A., Reisch, B. 2016. Lessons from a phenotyping center revealed by the genome-guided mapping of powdery mildew resistance loci. Phytopathology. 106:1159-1169.
Register of new fruit and nut varieties list 48 - (Abstract Only)
Ledbetter, C.A. 2016. Register of new fruit and nut varieties list 48. HortScience. 51(6): 620-652.
‘Valley Pearl’ table grape - (Peer Reviewed Journal)
Ledbetter, C.A. 2016. ‘Valley Pearl’ table grape. HortScience. 51(6):772-774.
Rootstock effects on almond leaf scorch disease incidence and severity - (Peer Reviewed Journal)
Krugner, R., Ledbetter, C.A. 2016. Rootstock effects on almond leaf scorch disease incidence and severity. Plant Disease. 100(8):1617-1621. doi: 10.1094/PDIS-01-16-0125-RE.
‘Goshen Gold’: A late-season Apricot for fresh and dry product markets - (Peer Reviewed Journal)
Ledbetter, C.A. 2016. ‘Goshen Gold’: A late-season Apricot for fresh and dry product markets. HortScience. 51(3):300-301.
‘Sunpreme’ raisin quality and timing as affected by irrigation treatment and pruning style - (Peer Reviewed Journal)
Ledbetter, C.A. 2015. ‘Sunpreme’ raisin quality and timing as affected by irrigation treatment and pruning style. Journal of American Pomological Society. 70(1):36-44.
A Phocus on Phenotyping: opportunities and challenges in local and centralized trait evaluation from the VitisGen experience - (Abstract Only)
Cadle Davidson, L.E., Sacks, G., Fennell, A., Gadoury, D., Sun, Q., Schweitzer, P., Londo, J.P., Ledbetter, C.A., Clark, M., Luby, J., Hemstad, P., Hegeman, A., Teh, S., Manns, D., Barba, P., Hwang, C., Sapkota, S., Chen, L., Fresnedo, J., Yang, S., Takacs, E., Reisch, B. 2016. A Phocus on Phenotyping: opportunities and challenges in local and centralized trait evaluation from the VitisGen experience. Plant and Animal Genome Conference. https://pag.confex.com/pag/xxiv/meetingapp.cgi/Paper/18722.
Application of genotyping-by-sequencing for mapping disease resistance in grapevine breeding families - (Abstract Only)
Cadle Davidson, L.E., Paola, B., Sun, Q., Hyma, K., Takacs, E., Lillis, J.A., Ledbetter, C.A., Ramming, D.W., Reisch, B. 2015. Application of genotyping-by-sequencing for mapping disease resistance in grapevine breeding families. American Phytopathological Society Annual Meeting. 104(11):152.
Susceptibility to Xylella fastidiosa in a first generation hybrid from a non-traditional peach-almond cross - (Peer Reviewed Journal)
Rogers, E.E., Ledbetter, C.A. 2015. Susceptibility to Xylella fastidiosa in a first generation hybrid from a non-traditional peach-almond cross. HortScience. 50:337-340.
Notice to fruit growers and nurserypersons of the release of Goshen Gold Apricot ()
An update on VitisGen: recent advances in using DNA marker technologies in U.S. grape breeding programs - (Abstract Only)
Cadle Davidson, L.E., Reisch, B., Sun, Q., Schweitzer, P., Londo, J.P., Ledbetter, C.A., Luby, J., Hemstad, P., Hegeman, A., Teh, S., Manns, D., Barba, P., Hyma, K., Lillis, J.A., Fresnedo, J., Yang, S., Takacs, E. 2015. An update on VitisGen: recent advances in using DNA marker technologies in U.S. grape breeding programs. Annual International Plant & Animal Genome Conference. W419: 14264.
VitisGen on the road: mapping the way to the next generation of grapes Reprint Icon - (Abstract Only)
Yang, S., Fresnedo, J., Takacs, E., Barba, P., Hyma, K., Lillis, J.A., Acharya, C., Fisher, A., Cote, L., Manns, D., Ryona, I., Gadoury, D., Seem, B., Sacks, G., Mansfield, A., Ledbetter, C.A., Luby, J., Hemstad, P., Fennell, A., Hwang, C., Walker, A., Riaz, S., Cousins, P., Londo, J.P., Buckler Iv, E.S., Mitchell, S., Schweitzer, P., Sun, Q., Cadle Davidson, L.E., Reisch, B. 2015. VitisGen on the road: mapping the way to the next generation of grapes. Annual International Plant & Animal Genome Conference. P0873: 15597.
Application of Genotyping-By-Sequencing for selection of locus-specific BAC clones to construct physical maps and identify candidate genes in Vitis Reprint Icon - (Abstract Only)
Lillis, J.A., Majumdar, R., Ledbetter, C.A., Cadle Davidson, L.E. 2015. Application of Genotyping-By-Sequencing for selection of locus-specific BAC clones to construct physical maps and identify candidate genes in Vitis. Annual International Plant & Animal Genome Conference. P0876: 15550.
Ruby Splendor nectarine ()
Ledbetter, C.A. 2014. Notice to Fruit Growers and Nursery Persons of the Release of Ruby Splendor Nectarine. p.1-2.
Register of new fruit and nut varieties list 47 ()
Ledbetter, C.A. 2014. Register of new fruit and nut varieties list 47. HortScience. 49(4):396-421.
Extending the dormant bud cryopreservation method to new tree species - (Proceedings)
Jenderek, M.M., Ambruzs, B.D., Tanner, J.D., Holman, G.E., Ledbetter, C.A., Postman, J.D., Ellis, D., Leslie, C. 2014. Extending the dormant bud cryopreservation method to new tree species. Acta Horticulturae. 2nd International Symposium on Plant Cryopreservation. Fort Collins, CO, August 11-14, 2014.
Membership within the Nonpareil Marketing Group: Examination of an unclassified accession - (Peer Reviewed Journal)
Ledbetter, C.A., Sisterson, M.S. 2014. Membership within the Nonpareil Marketing Group: Examination of an unclassified accession. Acta Horticulturae. 1028:397-400.
Progress in cryopreservation of dormant winter buds of selected tree species - (Abstract Only)
Jenderek, M.M., Ambruzs, B.D., Tanner, J.D., Holman, G.E., Ledbetter, C.A., Ellis, D., Leslie, C., Coggeshall, M. 2013. Progress in cryopreservation of dormant winter buds of selected tree species. Meeting Abstract. 2nd International Symposium on Plant Cryopreservation, Fort Collins, CO, August 11-16, 2013. pp. 37.
Distinguishing nonpareil marketing group almond cultivars through multivariate analyses - (Peer Reviewed Journal)
Ledbetter, C.A., Sisterson, M.S. 2013. Distinguishing nonpareil marketing group almond cultivars through multivariate analyses. Journal of Food Science. 78(9):S1430-S1436.
Yield, pollination aspects and kernel qualities of almond (Prunus amygdalus Batsch) selections trialed in the Southern San Joaquin Valley - (Peer Reviewed Journal)
Ledbetter, C.A., Mercure, E., Halasz, J., Hegedus, A. 2013. Yield, pollination aspects and kernel qualities of almond (Prunus amygdalus Batsch) selections trialed in the Southern San Joaquin Valley. Journal of American Pomological Society. 67(3):126-136.
Activated biochar removes 100% dibromochloropropane from field well water - (Peer Reviewed Journal)
Klasson, K.T., Ledbetter, C.A., Uchimiya, M., Lima, I.M. 2013. Activated biochar removes 100% dibromochloropropane from field well water. Environmental Chemistry Letters. 11(3):271-275.
Use of almond shells to treat water contaminated with almond tree nematicide in an energy efficient way - (Abstract Only)
Klasson, K.T., Ledbetter, C.A., Lima, I.M., Uchimiya, S.M. 2013. Use of almond shells to treat water contaminated with almond tree nematicide in an energy efficient way [abstract]. The Cornucopia. Spring 2013. American Chemical Society, Division of Agricultural and Food Chemistry, p. 64.
Removal of dibromochloropropane from drinking water: laboratory and field experiences - (Abstract Only)
Klasson, K.T., Ledbetter, C.A., Lima, I.M., Uchimiya, S.M. 2012. Removal of dibromochloropropane from drinking water: laboratory and field experiences [abstract]. Proceedings of the 30th International Activated Carbon Conference, October 4-5, 2012, Pittsburgh, PA.
Using activated biochars to treat well water in agricultural communities - (Abstract Only)
Phenology of Xylella fastidiosa and its vector around California almond nurseries: An assessment of plant vulnerability to almond leaf scorch disease - (Peer Reviewed Journal)
Krugner, R., Ledbetter, C.A., Chen, J., Shrestha, A. 2012. Phenology of Xylella fastidiosa and its vector around California almond nurseries: An assessment of plant vulnerability to almond leaf scorch disease. Plant Disease. 96(10):1488-1494.
Management of almond leaf scorch disease: long term data on yield, tree vitality, and disease progress - (Peer Reviewed Journal)
Sisterson, M.S., Ledbetter, C.A., Higbee, B., Groves, R., Chen, J., Daane, K. 2012. Management of almond leaf scorch disease: long term data on yield, tree vitality, and disease progress. Plant Disease. 96:1037-1044.
Discriminating Nonpareil marketing group almond cultivars through multivariate analyses - (Abstract Only)
Phenology of Xylella fastidiosa and its Vector, Draeculacephala minerva, in vegetation surrounding California Almond Nurseries - (Abstract Only)
Krugner, R., Ledbetter, C.A., Chen, J., Shrestha, A. 2012. Phenology of Xylella fastidiosa and its Vector, Draeculacephala minerva, in vegetation surrounding California Almond Nurseries. Entomological Society of America Proceedings, Pacific Branch Meting, March 25-28, 2012, Portland, Oregon. p. 21.
Register of new fruit and nut varieties list 46 - (Peer Reviewed Journal)
Ledbetter, C.A. 2012. Register of new fruit and nut varieties list 46. HortScience. 47(5):536-562.
Postharvest dried apricot color degradation of three California apricot accessions - (Abstract Only)
Ledbetter, C.A. 2012. Postharvest dried apricot color degradation of three California apricot accessions. Meeting Abstract. 966:163-168.
Postharvest dried apricot color degradation of three California apricot accessions - (Peer Reviewed Journal)
Ledbetter, C.A. 2012. Postharvest dried apricot color degradation of three California apricot accessions. Acta Horticulturae. 966:163-168.
Corrigendum to “Feasibility of dibromochloropropane (DBCP) and trichloroethylene (TCE) adsorption onto activated carbons made from nut shells of different almond varieties” [Ind. Crops Prod. 31 (2) (2010) 261-265] ()
Klasson, K.T., Ledbetter, C.A., Wartelle, L.H., Lingle, S.E. 2011. Corrigendum to “Feasibility of dibromochloropropane (DBCP) and trichloroethylene (TCE) adsorption onto activated carbons made from nut shells of different almond varieties” [Ind. Crops Prod. 31 (2) (2010) 261-265]. Industrial Crops and Products. 33(2):783.
Predicting performance of almonds shells for cleanup of almond soil fumigants from potable water. - (Abstract Only)
Carpological variability of almond (Prunus dulcis [Mill.] D.A. Webb cv Nonpareil) in a single orchard during seven consecutive harvests - (Peer Reviewed Journal)
Ledbetter, C.A., Sisterson, M.S. 2010. Carpological variability of almond (Prunus dulcis [Mill.] D.A. Webb cv Nonpareil) in a single orchard during seven consecutive harvests. HortScience. 45(12):1788-1792.
Apricot Breeding ()
Zhebentyayeva, T., Ledbetter, C.A., Burgos, L., Llacer, G. 2012. Apricots. In: Badenes, M.L., Byrne, P.H., editors. Fruit Breeding, Handbook of Plant Breeding, Vol. 8. Available: http://dx.doi.org/10.1007/978-1-4419-0763-12. Springer Science & Business Media. p.875
Register of New Fruit and Nut Varieties List 45 - (Peer Reviewed Journal)
Ledbetter, C.A. 2010. Register of New Fruit and Nut Varieties List 45. HortScience. 45(5):716-756.
Epidemiology of almond leaf scorch disease in the San Joaquin Valley of California - (Abstract Only)
Sisterson, M.S., Chen, J., Daane, K., Groves, R., Higbee, B., Ledbetter, C.A. 2010. Epidemiology of almond leaf scorch disease in the San Joaquin Valley of California. Phytopathology. 100:S119.
The Flavor of Plums ()
Gomez-Plaza,, E., Ledbetter, C.A. 2010. The Flavor of Plums. In: Handbook of Fruit and Vegetable Flavors. John Wiley & Sons, Inc. p. 415-430.
Variable development rate and survival of navel orangeworm (Lepidoptera: Pyralidae) on wheat bran diet and almonds - (Peer Reviewed Journal)
Siegel, J.P., Kuenen, L.P., Ledbetter, C.A. 2010. Variable development rate and survival of navel orangeworm (Lepidoptera: Pyralidae) on wheat bran diet and almonds. Journal of Economic Entomology. 103(4):1250-1257.
‘Bolaroja’ and ‘Primarosa’: Two New Mid Season Apricots for the Fresh Market - (Peer Reviewed Journal)
Ledbetter, C.A. 2010. ‘Bolaroja’ and ‘Primarosa’: Two New Mid Season Apricots for the Fresh Market. HortScience. 45(3): 441-442.
Feasibility of dibromochloropropane (DBCP) and trichloroethylene (TCE) adsorption onto activated carbons made from nut shells of different almond varieties - (Peer Reviewed Journal)
Klasson, K.T., Ledbetter, C.A., Wartelle, L.H., Lingle, S.E. 2010. Feasibility of dibromochloropropane (DBCP) and trichloroethylene (TCE) adsorption onto activated carbons made from nut shells of different almond varieties. Industrial Crops and Products. 31:261-265.
Differential Susceptibility of Prunus Germplasm (Subgenus Amygdalus) to a California Strain of Xylella fastidiosa - (Peer Reviewed Journal)
Ledbetter, C.A., Rogers, E.E. 2009. Differential Susceptibility of Prunus Germplasm (Subgenus Amygdalus) to a California Strain of Xylella fastidiosa. HortScience. 44(7):1928-1931.
Apricot Breeding in North America: Current Status and Future Prospects - (Peer Reviewed Journal)
Ledbetter, C.A. 2010. Apricot Breeding in North America: Current Status and Future Prospects. Acta Horticulturae. 862:85-91.
Wintercuring of Prunus dulcis cv ‘Butte,’ P. webbii and their interspecific hybrid in response to Xylella fastidiosa infections - (Peer Reviewed Journal)
Ledbetter, C.A., Chen, J., Livingston, S., Groves, R.L. 2009. Wintercuring of Prunus dulcis cv ‘Butte,’ P. webbii and their interspecific hybrid in response to Xylella fastidiosa infections. Euphytica. Available: http://www/springerlink.com/content/80775k3135586p81/fulltext.html
Innoculation of Almond Rootstock with Symbiotic Arbuscular Mycorrhizal Fungi - (Proceedings)
Hua, S.T., Browne, G.T., Ledbetter, C.A. 2008. Innoculation of Almond Rootstock with Symbiotic Arbuscular Mycorrhizal Fungi. Almond Industry 2008 Conference Proceedings. p.91-94.
Susceptibility of certain apricot and plumcot cultivars to plum pox virus infection. - (Peer Reviewed Journal)
Karayiannis,, I., Ledbetter, C.A. 2009. Susceptibility of certain apricot and plumcot cultivars to plum pox virus infection. Acta Horticulturae. (ISHS)825:153-156.
Almond breeding and evaluation activities in central California: past and future - (Peer Reviewed Journal)
Ledbetter, C.A. 2010. Almond breeding and evaluation activities in central California: past and future. Options Mediterraneennes. 94:255-260.
The development of seed-propagated peach-almond hybrids for use as almond rootstocks (Oral presentation) - (Abstract Only)
Register of New Fruit and Nut Varieties List 44 - (Peer Reviewed Journal)
Ledbetter, C.A. 2008. Register of New Fruit and Nut Varieties List 44. HortScience 43(5):1321-1343.
Innoculation of Almond Rootstock with Symbiotic Arbuscular Mycorrhizal Fungi - (Proceedings)
Hua, S.T., Browne, G.T., Ledbetter, C.A. 2007. Innoculation of Almond Rootstock with Symbiotic Arbuscular Mycorrhizal Fungi. Meeting Proceedings.
Shell Cracking Strength in Almond (Prunus dulcis [Mill.] D.A. Webb.)and its implication in uses as a value-added product. - (Peer Reviewed Journal)
Ledbetter, C.A. 2008. Shell Cracking Strength in Almond (Prunus dulcis [Mill.] D.A. Webb.)and its implication in uses as a value-added product. Bioresource Technology. 99(13): 5567-5573.
Effects of Almond Leaf Scorch Disease on Almond Yield and Implications for Management - (Peer Reviewed Journal)
Sisterson, M.S., Chen, J., Civerolo, E.L., Ledbetter, C.A., Groves, R.L. 2008. Effects of Almond Leaf Scorch Disease on Almond Yield and Implications for Management. Plant Disease 92:409-414.
Apricot variety development in California's San Joaquin Valley - (Abstract Only)
Ledbetter, C.A. 2007. Apricot variety development in California's San Joaquin Valley. Eucarpia Fruit Breeding and Genetics Symposium. 12th Annual Meeting, Zaragoza, Spain, September 16-20, 2007, (abstracts of meeting not published).
The use of Central Asian apricot germplasm to improve fruit quality in California adapted apricots. - (Abstract Only)
Ledbetter, C.A. 2007. The use of Central Asian apricot germplasm to improve fruit quality in California adapted apricots. Eucarpia Fruit Breeding and Genetics Symposium, 12th Annual Meeting, Zaragoza, Spain, September 16-20, 2007, (abstracts of meeting not published).
Using Central Asian germplasm to Improve Fruit Quality and Enhance Diversity in California Adapted Apricots - (Peer Reviewed Journal)
Ledbetter, C.A. 2009. Using Central Asian germplasm to Improve Fruit Quality and Enhance Diversity in California Adapted Apricots. Acta Horticulturae. 814:77-80.
Advanced Generation Peach-Almond Hybrids as Seedling Rootstocks for Almond: First Year Growth and Potential Pollenizers for Hybrid Seed Production - (Peer Reviewed Journal)
Ledbetter, C.A., Sisterson, M.S. 2007. Advanced Generation Peach-Almond Hybrids as Seedling Rootstocks for Almond: First Year Growth and Potential Pollenizers for Hybrid Seed Production. Euphytica. 160(2): 259-266.
Breeding of Apricot ()
Ledbetter, C.A. 2008. Breeding of Apricot. In: Temperate Fruit Crop Breeding Germplasm to Genomics. ISBN 1402069065
Susceptibility of Prunus rootstock seedlings to Xylella fastidiosa strains isolated from almond in California - (Abstract Only)
Chen, J., Ledbetter, C.A., Groves, R. 2007. Susceptibility of Prunus rootstock seedlings to Xylella fastidiosa strains isolated from almond in California. American Phytopathological Society, Annual Meeting, San Diego, CA, July 2007, (abstracts of meeting not published).
THE EFFECT OF BIOSOLIDS ON APRICOT PRODUCTION AFTER 7 YEARS OF APPLICATION - (Peer Reviewed Journal)
Banuelos, G.S., Pasakdee, S., Benes, S., Ledbetter, C.A. 2007. The effect of biosolids on apricot production after 7 years of application. Communications in Soil Science and Plant Analysis, Volume 38, Issue 11 & 12, June 2007, pages 1533-1549.
DEGRADATION OF ALMOND PELLICLE COLOR COORDINATES AT DIFFERENT STORAGE TEMPERATURES. - (Peer Reviewed Journal)
Ledbetter, C.A., Palmquist, D.E. 2006. Degradation of almond pellicle color coordinates at different storage temperatures. Postharvest Biology and Technology. 40(3):295-300.
REGISTER OF NEW FRUIT AND NUT VARIETIES LIST 43. ()
Ledbetter, C.A. 2006. Register of New Fruit and Nut Varieties List 43.HortScience 41(5);1101-1133. . HortScience.
MODIFICATION OF SUGAR PROFILES IN CALIFORNIA ADAPTED APRICOTS (PRUNUS ARMENIACA L.)THROUGH BREEDING WITH CENTRAL ASIAN GERMPLASM - (Peer Reviewed Journal)
Ledbetter, C.A., Peterson, S.J., Jenner, J.F. 2006. Modification of sugar profiles in California adapted apricots (Prunus armeniaca l.)through breeding with Central Asian germplasm. Euphytica. 148: 251-250
'APACHE' AND 'KETTLEMAN': TWO EARLY-SEASON APRICOTS FOR THE FRESH MARKET. - (Peer Reviewed Journal)
Ledbetter, C.A., Peterson, S.J. 2005. 'Apache' and 'Kettleman': Two Early-Season Apricots for the Fresh Market. Hortscience. 40(7):2202-2203.
COMPARING PHYSICAL MEASURES AND MECHANICAL CRACKING PRODUCTS OF 'NONPAREIL'ALMOND (PRUNUS DULCIS [MILL.] D.A. WEBB) WITH TWO ADVANCED BREEDING SELECTIONS. - (Peer Reviewed Journal)
Ledbetter, C.A., Palmquist, D.E. 2005. Comparing physical measures and mechanical cracking products of 'Nonpareil'almond (Prunus dulcis [Mill.] D.A. Webb) with two advanced breeding selections. Journal of Food Engineering. 76:232-237.
NOTICE TO FRUIT GROWERS AND NURSERYPERSONS OF THE RELEASE OF KETTLEMAN APRICOT. ()
Ledbetter, C.A. 2005. Notice to Fruit Growers and Nurserypersons of the Release of KETTLEMAN Apricot. Germplasm Release.
REGISTER OF NEW FRUIT AND NUT VARIETIES LIST 42. ()
Ledbetter, C.A. 2004. Register of New Fruit and Nut Varieties List 42. HortScience. 39(6):1509.
UTILIZATION OF PAKISTANI APRICOT (PRUNUS ARMENIACA L.) GERMPLASM FOR IMPROVING BRIX LEVELS IN CALIFORNIA ADAPTED APRICOTS. - (Peer Reviewed Journal)
Ledbetter, C.A., Peterson, S.J. 2004. Utilization of Pakistani apricot (Prunus armeniaca L.) germplasm for improving Brix levels in California adapted apricots. Plant Genetic Resources Newsletter. 140:14-22.
THE EFFECT OF FRUIT MATURITY ON QUALITY AND COLOR SHIFT OF DRIED 'PATTERSON' APRICOT DURING EIGHT MONTHS OF COLD STORAGE - (Peer Reviewed Journal)
Ledbetter, C.A., Aung, L.A., Palmquist, D.E. The effect of fruit maturity on quality and colour shift of dried 'Patterson' apricot during eight months of cold storage. Journal of Horticultural Science and Biotechnology. 2002. v.77(5). p 526-533.
EVALUATION OF ADVANCED ALMOND (PRUNUS AMYGDALUS BATSCH) SELECTIONS RELATIVE TO THE COMMERCIAL ALMOND CULTIVARS MISSIONS, NON PAREIL AND PADRE. II. VEGETATIVE AND CARPOLOGICAL CHARACTERISTICS. - (Peer Reviewed Journal)
Ledbetter, C.A., Palmquist, D.E. Evaluation of advanced almond (Prunus amygdalus Batsch) selections relative to the commercial almond cultivars Mission, Nonpareil and Padre. II. Vegetative and carpological characteristics
EVALUATION OF ADVANCED ALMOND (PRUNUS AMYGDALUS BATSCH) SELECTIONS RELATIVETO THE COMMERCIAL ALMOND CULTIVARS MISSION, NONPAREIL AND PADRE. I. BLOOM CHARACTERISTICS - (Peer Reviewed Journal)
Ledbetter, C.A., Palmquist, D.E. Evaluation of advanced almond (Prunus amygdalus Batsch) selections relative to the commercial almond cultivars Mission, Nonpareil and Padre. I. Bloom characteristics. Journal of Genetics and Breeding. 2002. v. 56. p. 43-49.
REGISTER OF NEW FRUIT AND NUT VARIETIES LIST 39. ()
Ledbetter, C.A. 1999. Register of New Fruit and Nut Varieties List 39. HortScience. 34(2):183.
PHENYLPROPANOID FINGERPRINTING OF PLUM-APRICOT HYBRIDS - (Abstract Only)
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