Horticultural Sciences

Dr. Steven A. Sargent

Professor and Associate Chair

Mailing Address:
Fifield Hall
2550 Hull Road
PO Box 110690
Gainesville, Florida 32611

SAS ORCID: Steven Sargent (0000-0002-5540-7831) - ORCID

Office: 1211 Fifield Hall
Phone: (352) 273-4780
E-mail: sasa@ufl.edu

Areas of Research
- Determine the impact of current and novel techniques and technologies on quality of fresh fruits and vegetables during harvest, handling and storage operations.

Teaching Responsibilities
- HOS 5330 – Postharvest Technologies for Horticultural Crops

Educational Background
- Ph.D., Agricultural Engineering, Michigan State University
- M.S., Horticulture, Michigan State University
- B.S., Horticulture, Michigan State University

Extension Program
- Develop relevant extension materials based on results of my research program and new developments in the scientific literature.
- Present to pertinent clientele groups.

International Program
- Research Collaborations
  - Embrapa (Brazilian Agricultural Research Corporation):
    - Embrapa Vegetables, Brasilia; Embrapa Instrumentation, São Carlos,
  - University of São Paulo, ESALQ campus, Piracicaba, Brazil
  - Federal University of Sergipe, Aracaju, Brazil
- Language Proficiency
  - Fluent in Portuguese (Brazilian) and intermediate fluency in Spanish.

Work Experience
- Language Proficiency
  - Fluent in Portuguese and intermediate fluency in Spanish.
- Extension Collaborations
  - Emater-Federal District of Brasilia and Rio Grande do Sul, Brazil.
- Research Collaborations
  - Embrapa (Brazilian Agricultural Research Corporation): Embrapa Vegetables, Brasilia; Embrapa Instrumentation, São Carlos, Brazil
  - University of São Paulo, ESALQ campus, Piracicaba, Brazil
  - Federal University of Sergipe, Aracaju, Brazil

Honors and Awards
- International Awards
  - Honorary Professor, 2010, Universidad del Santa, Food Technology Department, Chimbote, Peru
- National Awards
  - Fellow, American Society for Horticultural Science. 2021
  - Extension Publication Award, Southern Region, American Society for Horticultural Science, 1999, 2003, and 2004
  - ESCOP/ACOP Leadership Program Participant, Experiment Station Committee on Organization & Policy. 2001
  - National Organization of State Universities and Land-Grant Colleges, 2001-2002 cohort
  - Educational Materials Award, Extension Division, American Society for Horticultural Science, 1999 and 2000
  - Most Outstanding Research Paper in Vegetable Crops, 1999, 2009, American Society for Horticultural Science
  - Ulysses P. Hedrick Award, 1999, American Pomological Society, 1st Place Paper, Montealegre, JC, Childers, NC, Sargent, SA, Barros, LM, Alves, RE
- State Awards
  - Honorary Member, Florida State Horticulture Society, 2018
  - Researcher of the Year, 2010, Florida Fruit & Vegetable Association
  - The Presidential Gold Medal, 2002 and 2009, Florida State Horticulture Society
  - Best Paper Award, Florida State Horticulture Society, (2000, 2003, 2004, 2006, 2007, and 2008 Meetings)
- University of Florida
  - International Educator of the Year, IFAS, Sr. Faculty Category, 2010, University of Florida International Center
  - Jim App Award for Outstanding Design Team, 2002, University of Florida Cooperative Extension Service
  - Faculty Development Leave, 1993 to 1994, University of Florida, Sabbatical year at Embrapa Food Technology Laboratory in Guaratiba, Brazil

Program Personnel
- Adrian Berry, M.S., Biological Scientist IV
- Merce Santana, Biological Scientist I
- Sonya Stahl, Biological Scientist II
- Dr. Raquel Miranda, Visiting Professor, Federal University of Ceará, Brazil

Authors	Year	Title / Description	Publication
Brecht, J.K., S.A. Sargent, A.A. Kader, E.J. Mitcham, F. Maul, P.E. Brecht and O. Menocal.	2021	Mango Postharvest Best Management Practices Manual. Univ. of Fla. Horticultural Sciences Department, Gainesville. Publ. HS1185. 74 pp. (In English, Spanish, Portuguese, Haitian Creole)	http://edis.ifas.ufl.edu/hs1185
Brecht, J.K., S.A. Sargent, P.E. Brecht, J. Saenz and L. Rodowick.	2019	Protecting Perishable Foods During Transport by Truck and Rail. University of Florida. EDIS Publication HS-1328. 204 pp.	http://edis.ifas.ufl.edu/hs1328 DOI: http://www.dx.doi.org/10.9752/TS230.04-2019

Authors	Year	Title / Description	Publication
Belisle, C.E., G.V. Sandoya, S.A. Sargent and G.F. Kreutz.	2023	Lettuce Germplasm in Humid Subtropical Environments Tolerant to Postharvest Development of Pink Rib Disorder. J. American Soc.	Hort. Sci. 148:179-189. https://doi.org/10.21273/JASHS05295-23 (cover article)
Belisle, C.E., S.A. Sargent, G.V. Sandoya, J.K. Brecht, R. Dai, B. Askey, Z. Le, M. Lin and J. Kim.	2023	Melatonin reduces pink rib discoloration in wounded lettuce midribs.	Postharvest Biology & Technology Vol. 109. https://doi.org/10.1016/j.postharvbio.2023.112307
Theodore, C., S.A. Sargent, J.K. Brecht, L. Zotarelli and A.D. Berry.	2022	Comparison of Three Cooling Methods (Hydrocooling, Forced-Air Cooling and Slush Icing) and Plastic Overwrap on Broccoli Quality during Simulated Commercial Handling.	Agriculture 12, 1272. https://doi.org/10.3390/agriculture12081272
Krupek, F.S., L. Zotarelli, S.A. Sargent, D. Rowland and P.J. Dittmar.	2022	Vine Desiccation Timing Strategies for Enhanced Harvest and Storage Quality of Early-Maturing Potato Cultivars.	Potato Research 65:829-851. https://doi.org/10.1007/s11540-022-09550-3
Zhang, C., Hoogenboom, G., Ritenour, M.A., Alam-Eldein, S.M., Muñoz-Carpena, R. and Sargent, S.A.	2022	Modeling the relationship between air temperature and grapefruit quality traits.	J Sci Food Agric. https://doi.org/10.1002/jsfa.12219
Wang, Y., G. Maltais-Landry, B. Rathinasabapathi, S.A. Sargent and G. Liu.	2021	Growth and yield responses of pot-grown long bean and luffa to nitrogen rates.	Agriculture 11:1145. https://doi.org/10.3390/agriculture11111145
Razali, N.A., S.A. Sargent, C.A. Sims, J.K. Brecht, A.D. Berry and G. Cheng.	2021	Potential of postharvest coatings to maintain freshness of red-fleshed pitaya (Hylocereus costaricensis).	Agriculture 11:892. https://doi.org/10.3390/agriculture11090892
Belisle, C.E., S.A. Sargent, J.K. Brecht, G.V. Sandoya and C.A. Sims.	2021	Accelerated shelf-life testing to predict quality loss in Romaine-type lettuce.	HortTechnology 31(4):490-499. https://doi.org/10.21273/HORTTECH04812-21
Sargent, S.A., F. Takeda, J.G. Williamson and A.D. Berry.	2021	Harvest of southern highbush blueberry with a modified, over-the-row mechanical harvester: use of soft-catch surfaces to minimize impact bruising.	Agronomy 11:1412. https://doi.org/10.3390/agronomy11071412
Krupek, F.S., P.J. Dittmar, S.A. Sargent and L. Zotarelli.	2021	Impact of early potato desiccation method on crop growth, skinning injury, and storage quality maintenance.	Am. J. Potato Res. 98, 218–231. https://doi.org/10.1007/s12230-021-09836-1
Bender, R.J., J.K. Brecht and S.A. Sargent.	2021	Low storage temperature for tree ripe mangoes under controlled atmospheres with elevated CO₂ concentrations.	Journal of the Science of Food & Agriculture 101(3):1161-1166. DOI 10.1002/jsfa.10727
Bender, R.J., J.K. Brecht, and S.A. Sargent.	2021	Reduced ethylene synthesis of mangoes under high CO₂ atmosphere storage.	Acta Scientiarum-Agronomy 43(1), e51540. https://doi.org/10.4025/actasciagron.v43i1.51540
Makani, M.N., L. Zotarelli, S.A. Sargent, D.J. Huber and C.A. Sims.	2020	Nitrogen Fertilizer Rate Affects Yield and Tuber Quality of Drip-Irrigated Tablestock Potatoes (Solanum tuberosum L.) Grown under Subtropical Conditions.	American Journal of Potato Research 97:605-614. https://doi.org/10.1007/s12230-020-09809-w
Loayza, F.E., J.K. Brecht, S.A. Sargent and C.A. Sims.	2020	Physiological response of mature green tomatoes to treatment with ethylene at high temperature.	HortTechnology 30(6):773-780. https://doi.org/10.21273/HORTTECH04668-20
Sargent, S.A., F. Takeda, J.G. Williamson and A.D. Berry.	2020	Harvest of Southern Highbush Blueberry with a Modified, Over-The-Row Mechanical Harvester: Use of Handheld Shakers and Soft Catch Surfaces.	Agriculture 10(1), 4; DOI:10.3390/agriculture10010004.
Brecht, J.K., S.A. Sargent, P.E. Brecht, J. Saenz and L. Rodowick.	2019	Protecting Perishable Foods During Transport by Truck and Rail. University of Florida.	EDIS Publication HS-1328. 204 pp. https://edis.ifas.ufl.edu/hs1328.
De, J., A. Sreedharan, Y. Li, A. Gutierrez, J.K. Brecht, S.A. Sargent, K.R. Schneider.	2019	Comparing the Efficacy of Postharvest Cooling Methods to Enhance Fruit Quality and Reduce Salmonella in Artificially Inoculated Southern Highbush Blueberry.	HortTechnology 29:(3) 314-319. DOI:10.21273/hortTech04238-19.
Lon Kan, E.E., S.A. Sargent, D.J. Cantliffe, A.D. Berry and N.L. Shaw.	2019	Harvest Maturity and Storage Temperature Affect Postharvest Quality of ‘Wanda’ Datil Hot Pepper Grown Under Protected Culture.	HortTechnology 29(4):402-407. DOI:10.21273/HORTTECH04328-19.
Carnelossi, M.A.G., E.O.A. Sena, A.D. Berry and S.A. Sargent.	2019	Effect of forced-air cooling, hydrocooling, or their combination on fruit quality of two southern highbush blueberry cultivars.	HortScience 54(1):136-142. DOI:10.21273/HORTSCI13181-18.
Sena, E.O.A., P.S.O. da Silva, H.G.S. de Araujo, M.C.A. Batista, P.N. Matos, S.A. Sargent, L.F.G. Oliveira Junior and M.A.G. Carnelossi.	2019	Postharvest quality of cashew apple after hydrocooling and cold room.	Postharvest Biology & Technology 155:65-71.
Pinto, P.M., P.C. Spricigo, S.R. da Silva, S.A. Sargent, A.P. Jacomino.	2018	Effect of 1-MCP and low temperature storage on postharvest conservation of camu-camu.	Acta Physiologiae Plantarum 40:205. DOI:10.1007/s11738-018-2768-7.
Suthar, R.G., C. Wang, M.C.N. Nunes, J. Chen, S.A. Sargent, R.A. Bucklin and B. Gao.	2018	Bamboo biochar pyrolyzed at low temperature improves tomato plant growth and fruit quality.	Agriculture 8:153-155. DOI:10.3390/agriculture8100153
Ferreira, M.D., P. C. Spricigo and S.A. Sargent.	2017	Ch. 3. (Harvest and Packing). Pp. 67-85.	In, Ferreira, M.D. (ed.), (Postharvest Instrumentation for Fruits and Vegetables). Original title: Instrumentação Pós-Colheita em Frutas e Hortaliças. Embrapa, Brasilia DF, Brazil. 284 pp.
Makani, M.N., S.A. Sargent, L. Zotarelli, D.J. Huber and C.A. Sims.	2017	Harvest Interval Has Greater Effect on Periderm Maturity and Storage Quality of Early-maturing, Tablestock Potato than Nitrogen Rate.	HortScience 52:1390-1395.
Hagan, L.L., Johnson, P. N. T., Sargent, S.A., Huber, D.J. and A. Berry A.	2017	1-methylcyclopropene treatment and storage conditions delay the ripening of plantain fruit while maintaining sensory characteristics of ampesi,* the boiled food product.*	International Food Research Journal 24(2):630-636.
Takeda, F., W.Q. Yang, C. Li, A. Freivalds, K. Sung, R. Xu, B. Hu, J. Williamson and S. Sargent.	2017	Applying New Technologies to Transform Blueberry Harvesting.	Agronomy 7(2):33; DOI:10.3390/agronomy7020033.

Authors	Year	Title / Description	Publication
Sargent, S.A., M.T. A. Santana, C. Theodore, L. Zotarelli, J.K. Brecht and A.D. Berry.	2023	Handling Florida Broccoli: From Harvest to Shipping Operations.	University of Florida/IFAS Extension, Horticultural Sciences Department. HS1453. https://doi.org/10.32473/edis-HS1453-2022
Brecht, J.K., S.A. Sargent, N. Ristow, J.A. Osuna García, and S. Singh.	2022	Demonstrating modified atmosphere packaging (MAP) feasibility for mango export.	Acta Horticulturae (ISHS CAMA2021 Symposium) (in press since 2022)
Pliakoni, E., D.J. Huber, S.A. Sargent, and J.K. Brecht.	2022	Use of two different MAP systems for extension of shelf like of romaine lettuce.	Acta Horticulturae (ISHS CAMA2021 Symposium) (in press since 2022)
Sams, C., S. Sargent, J. Davis, C.W. Callahan, J. Eccleston, T. Bjorkman.	2022	Cooling methods for broccoli: a guide for eastern growers.	University of Tennessee Institute of Agriculture. PB 1904. 18 pp. https://ecommons.cornell.edu/handle/1813/112304
Lee, J.A., J.K. Brecht, S. Castro-Wallace, F.M. Donovan, J.A. Hogan, T. Liu, G.D. Massa, S.A. Sargent, A.M. Settles, N.K. Singh, Y.-A. Velez Justiniano and K. Venkateswara.	2021	A white paper submitted to the Decadal Survey on Biological and Physical Sciences Research in Space 2023-2032.	NASA. https://ntrs.nasa.gov/citations/20210023206
Morgan, M., J.K. Brecht, S.A. Sargent, and J. Crane.	2021	Ripening inhibition and quality of selected tropical fruits in relation to 1-MCP controlled release technology from Hazel Technologies.	Proc. Fla. State Hort. Soc. 134:161-163.
Mussoline, W., Sargent, S., England, G. and Christensen, C.	2021	Harvest yields for Brussels sprouts cultivar trials in northeast Florida.	Proc. Fla. State Hort. Soc. 134: 113-115.
Santana, M., Sargent, S., Berry, A. Dinkins, D., Mussoline, W. and Liu, G.	2021	Determining optimal handling conditions and shelf life for orange- and purple-fleshed sweetpotatoes: preliminary studies.	Proc. Fla. State Hort. Soc. 134: 177.
Santiago, J.M., Guzman, S. Kadyampakeni, D.M., Williamson, J.G., Sargent, S.A., Ferrarezi and Rossi, L.	2021	Fertilizer inputs affect grapefruit root health.	Proc. Fla. State Hort. Soc. 134: 83.
Takeda, F. and S. A. Sargent.	2020	Machine harvesting of blueberries for the fresh market.	VSCNews 3(7):12-13. http://www.mirabelsmagazinecentral.com/DigitalEdition/index.html?id=427168dd-94b0-401f-a280-a833b73ff88d
Liu, G., X. Fu, L. Zotarelli, S.A. Sargent, K.W. Migliaccio, Y. Li.	2020	How to fertigate plant vines via center pivots for commercial potato production in Florida.	HS1361, EDIS. https://edis.ifas.ufl.edu/hs1361
Kou, J., J. Zhang, T. Zhong, J. K. Brecht, S.A. Sargent, A. Plotto, J. Bai, X. Sun, and M.A. Ritenour.	2019	Control of strawberry postharvest decay caused by Botrytis cinerea and Rhizopus stolonifer using essential oils (carvacrol and thymol).	Proc. Fla. State Hort. Soc. 132: (In Press).
Belisle, C.E., S.A. Sargent, J.K. Brecht, A.D. Berry.	2018	Trimming sweetcorn shanks better maintains total sugars and water content of kernels during storage.	Proc. Florida State Horticulture Society. 131:189-192.
Berry, A.D., S.A. Sargent, C.E. Belisle.	2018	Hydrocooling extends quality and shelf life of Asian vegetables.	Proc. Florida State Horticulture Society 131:178-182.
Brecht, J.K. and S.A. Sargent.	2018	Tips for tuning up packing and cooling facilities.	VSC News 1(9):6-7. http://vscnews.com/tips-for-tuning-up-packing-and-cooling-facilities/
Tamashiro, T., S.A. Sargent and A.D. Berry.	2018	Quality evaluation of strawberry bruised by simulated drop heights.	Proc. Florida State Horticulture Society 131:171-177.
Krupek, F.S.G, S. Sargent, P.J. Dittmar, L. Zotarelli.	2018	Seed piece spacing adjustment for Florida chipping potatoes.	HS1337, 5/2018. EDIS 2018 (5). http://edis.ifas.ufl.edu/hs1317
Razali, N.A., S.A. Sargent, A.D. Berry and J.K. Brecht.	2017	Harvest Maturity Affects Fruit Quality and Postharvest Behavior of Red-Fleshed Pitaya Fruit (Hylocereus costaricensis).	Proc. Florida State Horticulture Society 130:185-190.
Fu, X., G. Liu, L. Zotarelli, S. Sargent, C. Snodgrass, and A. Jones.	2017	Fertigation for Florida’s Commercial Potato Production.	Proc. Florida State Horticulture Society 130: 116-117.
Cui, Yuqi, M. Doron, G. Liu, L. Zotarelli, S. Sargent, D. Dinkins, and D. Johns.	2017	Optimization of phosphorus rates for potato (Solanum tuberosum l.) production in northeast Florida: A One-year, On-farm Case Study.	Proc. Florida State Horticulture Society. 130: 155-157.
Sargent, S.A., A.D. Berry, J.K. Brecht, M. Santana, S. Zhang, N. Ristow.	2017	Studies on quality of southern highbush blueberry cultivars: effects of pulp temperature, impact and hydrocooling. XI Intl. Vaccinium Symposium.	April 10-14, 2016. Orlando, FL. ACTA Horticulturae 1180:497-502. DOI 10.17660/ActaHortic.2017.1180.70