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Ben Bergmann

Floriculture Research Associate

EHRA Research Associate

Academics, EHRA Professional, Extension, Research


Area(s) of Expertise

Dr. Bergmann’s plant science research has ranged from the basic (e.g. somatic embryogenesis in Aesculus) to the applied (e.g. use of Paulownia foliage for goat fodder) and from the laboratory bench (e.g. microprojectile-mediated gene transfer to Pinus cotyledons) to the whole-ecosystem level (e.g. biodiversity and productivity of sustainable agro-ecosystems). Ben’s current research focuses on postharvest challenges in cut flowers, especially in regard to Botrytis cinerea susceptibility and ethylene sensitivity. Since his arrival at NC State University, Ben has conducted postharvest research with chrysanthemums, dahlias, daylilies, gerberas, poinsettias, roses, and snapdragons. He teaches HS 201 (601) each fall semester.

Selected Publications

  1. Jahnke, NJ, JM Dole, DP Livingston III, BA Bergmann. 2020. Impacts of carbohydrate pulses and short-term sub-zero temperatures on vase life and quality of cut Paeonia lactiflora Pall. Hybrids. Postharvest Biol Technol. 161: DOI: 10.1016/j.postharvbio.2019.111083
  2. Dole, J, N Jahnke, I McCall, C Loyola, B Bergmann. 2019 Vase life of 58 new cut flowers. IX International Symposium on New Ornamental Crops Acta Horticulturae 626.
  3. Bergmann, BA, I Ahmad, JM Dole. 2019. Benzyladenine and gibberellic acid pulses improve flower quality and extend vase life of cut dahlias. Can J Plant Sci 99:97-101. DOI: 10.1139/cjps-2018-0126
  4. Bergmann, BA, SB Ghezehei. 2019. Influence of species, clone, propagation method, and animal waste application during establishment on growth and productivity of 21-year-old Paulownia trees. Env Ecol Res 7(1): 12-18. DOI: 10.13189/eer.2019.070103
  5. Bergmann, BA, JM Dole, I McCall. 2018. Postharvest performance of poinsettia plants exposed to low light levels, low temperatures, and low substrate moisture. HortTechnology 28(5):584-595. DOI: 10.21273/HORTTECH04106-18
  6. Bergmann, BA, JM Dole. 2018. Influence of essential oils on post-infection botrytis damage in cut roses. J Environ Hort 36(2):45-57. DOI: 10.24266/JEH-D-17-0012.1
  7. Bergmann, BA, JM Dole. 2018. Which cuts can cut it? GrowerTalks 82(2):60-65.
  8. Bergmann, BA, JM Dole, P Fisher, G Njue, I McCall. 2017. Gibberellic acid promotes flower stem elongation in ‘Renaissance Red’ poinsettia. Can J Plant Sci 97:14-16. DOI: 10.1139/cjps-2016-0111
  9. Crawford, BD, JM Dole, BA Bergmann. 2016. Influences of season and cutting week within a propagation cycle on rooting of ‘Stained Glass’ coleus shoot tip cuttings are not overcome by rooting compound treatment. HortTechnology 26(5):620-627. DOI: 10.21273/HORTTECH03464-16
  10. Bergmann, BA, JM Dole, I McCall. 2016. Gibberellic Acid Shows Promise for Promoting Flower Stem Length in Four Field-grown, Cut Flowers. HortTechnology 26(3):287-292. DOI: 10.21273/HORTTECH.26.3.287
  11. Leatherwood, WR, JM Dole, BA Bergmann, JE Faust. 2016. 1-Methylcyclopropene Improves Ethylene Tolerance of Unrooted Herbaceous Cuttings but Delays Adventitious Root Development in Angelonia, Calibrachoa, Impatiens, Portulaca, Sutera, and Verbena Cultivars. HortScience 51(2):164-170. DOI: 10.21273/HORTSCI.51.2.164
  12. Bergmann, B. 2003. Five years of ​Paulownia​ field trials in North Carolina. New Forests 25(3):185­199. DOI: 10.1023/A:1022983602103
  13. Cheng, J, L Landesman, BA Bergmann, JJ Classen, JW Howard, YT Yamamoto. 2002. Nutrient removal from swine lagoon liquid by Lemna minor​ 8627. Trans Am Soc Agric Eng. 45(4):1003­1010. DOI: 10.13031/2013.9953
  14. Cheng, J, BA Bergmann, JJ Classen, A­M Stomp, JW Howard. 2002. Nutrient recovery from swine lagoon water by ​Spirodela punctata​. Bioresource Technology 81:81­85. DOI: 10.1016/S0960-8524(01)00098-0
  15. Yamamoto, YT, N Rajbhandari, XH Lin, BA Bergmann, Y Nishimura, A­M Stomp. 2001. Genetic transformation of duckweed ​Lemna gibba​ and ​Lemna minor​.  In Vitro Cellular and Developmental Biology – Plant 37: 349­353. DOI: 10.1007/s11627-001-0062-6
  16. Luginbuhl, J­M, JP Mueller, BA Bergmann. 2001. Mineral concentration of herbage from three Paulownia​ species used for goat browse. In: JA Gomide, WRS Mattos, SC da Silva (Eds.) Grassland Ecosystems: an Outlook into the 21st Century. pp 654­655. XIX International Grassland Congress. São Pedro, São Paulo. Brazil.
  17. Bergmann, BA, J Cheng, J Classen, A­M Stomp. 2000. Nutrient removal from swine lagoon effluent by duckweed. Trans Am Soc Agric Eng. 43(2):263­269. DOI: 10.13031/2013.2701
  18. Bergmann, BA, J Cheng, J Classen, A­M Stomp. 2000. In vitro selection of duckweed geographic isolates for potential use in swine lagoon effluent renovation. Bioresource Technology 73(1):13­20. DOI: 10.1016/S0960-8524(99)00137-6
  19. Bergmann, BA, X Lin, R Whetten. 1999. Susceptibility of Paulownia elongata​ to ​Agrobacterium and production of transgenic calli and hairy roots by in vitro​ ​ inoculation. Plant Cell Tiss Org Cult 55:45­51. DOI: 10.1023/A:1026481926560
  20. House, CH, BA Bergmann, AM Stomp, DJ Frederick. 1999. Combining constructed wetlands and aquatic and soil filters for reclamation and reuse of water. Ecological Engineering 12(1­2):27­38. DOI: 10.1016/S0925-8574(98)00052-4
  21. Bergmann, BA. 1998. Propagation method influences first year survival and growth of Paulownia​. New Forests 16(3):251­264. DOI: 10.1023/A:1006529622871
  22. Bergmann, BA, R Whetten. 1998. ​In vitro​ rooting and early greenhouse growth of micropropagated ​Paulownia elongata​ shoots. New Forests 15(2):127­138.
  23. Bergmann, BA, J Dukes, A­M Stomp. 1997. Infection of Pinus radiata​ with Agrobacterium​ rhizogenes​ and long­term growth of detached hairy roots ​in vitro​. N Z J For Sci 7(1):11­22.
  24. Bergmann, BA, AR Rubin, CR Campbell. 1997. Potential of Paulownia elongata​ trees for swine waste remediation. Trans Amer Soc Ag Eng 40(6):1733­1738. DOI: 10.13031/2013.21401
  25. Bergmann, BA, H­K Moon. 1997. ​In vitro​ adventitious shoot production in Paulownia​​. Plant Cell Rep 16(5):315­320. DOI: 10.1007/s002990050230
  26. Bergmann , BA, Y­H Sun, A­M Stomp. 1997. ​Harvest Time and Nitrogen Source Influence In Vitro Growth of Apical Buds from Fraser Fir Seedlings. HortScience 32(1):125-­128. DOI: 10.21273/HORTSCI.32.1.125
  27. Bergmann, BA, WP Hackett, H Pellett. 1996. Somatic embryogenesis in ​Aesculus​. In Vitro Cell Dev Biol ­ Plant 32:161­164. DOI: 10.1007/BF02822760
  28. Bergmann, BA, SD Carson, A­M Stomp. 1995. Heritability of in vitro​ ​ characteristics and correlation with field performance in Pinus radiata​. Can J For Res. 25:1944­1952. DOI: 10.1139/x95-209
  29. Lin, X, BA Bergmann, A­M Stomp. 1995. Effect of medium physical support, shoot length and genotype on ​in vitro​ rooting and plantlet morphology of sweetgum. J Environ Hort 13(3):117­121.
  30. Bergmann, BA, A­M Stomp. 1994. Family and clonal variation in susceptibility of Pinus radiata to ​Agrobacterium tumefaciens​ in relation to in vitro​ ​ shoot growth rate. N Z J For Sci 24(1):3­10.
  31. Bergmann, BA, A­M Stomp. 1994. Effect of genotype on ​in vitro​ adventitious shoot formation in Pinus radiata​ and correlations between pairs of phenotypic traits during in vitro​ ​ shoot development. Plant Cell Tiss Org Cult 39:185­194. DOI: 10.1007/BF00035969
  32. Bergmann, BA, A­M Stomp. 1994. Effect of genotype on rooting of hypocotyls and adventitious shoots of ​Pinus radiata​. Plant Cell Tiss Org Cult 39:195­202. DOI: 10.1007/BF00035970
  33. Bergmann, BA, A­M Stomp. 1992. ​Pinus radiata​ host plant genotype influence on susceptibility to ​Agrobacterium tumefaciens​. Phytopathology 82(12):1457­1462. DOI: 10.1094/Phyto-82-1457
  34. Bergmann, BA, A­M Stomp. 1992. Influence of taxonomic relatedness and medium composition on meristematic nodule and adventitious shoot formation in nine pine species. Can J For Res 22:750­755. DOI: 10.1139/x92-101
  35. Chesick, EE, BA Bergmann. 1991. Jack Pine (Pinus lambertiana​​ Lamb.). In: Biotechnology in Agriculture and Forestry, Vol 16, Trees III. Bajaj ed. Springer Verlag, New York:241­253.
  36. Bergmann, BA, H Pellett, WP Hackett. 1988. Aesculus ​ ​‘Autumn Splendor’. HortScience 24(1):180­181.
  37. Bergmann, BA, WP Hackett, H Pellett. 1988. Comparison of stem cuttings from seedlings of Aesculus​ sp. and mature ​Aesculus ​× ​arnoldiana​ ‘Autumn Splendor’. J Environ Hort 6(2):69­71.
  38. Armitage, AM, BA Bergmann, EL Bell. 1987. Effect of daminozide and light intensity on growth and flowering of calendula as a potted plant. HortScience 22(4):611­612


PhD, Forestry/Genetics, North Carolina State University
MS, Horticulture/Plant Physiology, University of Minnesota
BS, Horticulture/Spanish, University of Georgia