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The Effect of the Long-Term Cold Storage and Preservatives on Senescence of Cut Herbaceous Peony Flowers
Article

Extending Cut Paeonia Lactiflora Pall. Storage Duration Using Sub-Zero Storage Temperatures

1
Department of Horticultural Science, North Carolina State University, Raleigh, NC 27695-7609, USA
2
Plants for Human Health Institute, North Carolina Research Campus, Kannapolis, NC 28081, USA
3
Department of Horticultural Science, Plants for Human Health Institute, North Carolina Research Campus, Kannapolis, NC 28081, USA
*
Authors to whom correspondence should be addressed.
Agronomy 2020, 10(11), 1694; https://doi.org/10.3390/agronomy10111694
Received: 16 September 2020 / Revised: 28 October 2020 / Accepted: 30 October 2020 / Published: 1 November 2020
(This article belongs to the Special Issue Postharvest Physiology of Ornamentals: Processes and Their Regulation)
Cut peonies (Paeonia lactiflora Pall.) have a relatively short vase life and limited availability due to seasonal production. Cultivars Festiva Maxima (FM), Monsieur Jules Elie (MJE), and Sarah Bernhardt (SB) stored at 0.7 °C had a longer flower open time at 12 weeks of storage compared to those held at −3.1 or 3.5 °C, while the flower bud time was unaffected. The flower open time of FM and MJE was no different for stems stored at a sub-zero temperature of −0.6 °C for 16 weeks compared to non-stored stems. Flower quality, opening, and lack of deformity was reduced at 16 weeks of storage in comparison to non-stored flowers, but higher for stems stored at −0.6 °C compared to 0.7 °C. Pre-treating stems before storage with pulses of a commercial hydrator solution or a 200 g·L−1 sucrose solution for 2 h at 4 °C had little commercial significance compared to non-pulsed control stems. The total phenolic content, malondialdehyde, and superoxide dismutase were not effective indicators of open time or quality loss. This study is the first to demonstrate the successful use of a non-freezing, sub-zero storage temperature for peony, and the first to store cut peonies for 16 weeks, despite an increased risk of reduced flower quality. View Full-Text
Keywords: peony; long-term storage; flower deformity; total phenolic content; malondialdehyde; superoxide dismutase peony; long-term storage; flower deformity; total phenolic content; malondialdehyde; superoxide dismutase
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MDPI and ACS Style

Jahnke, N.J.; Dole, J.M.; Bergmann, B.A.; Ma, G.; Perkins-Veazie, P. Extending Cut Paeonia Lactiflora Pall. Storage Duration Using Sub-Zero Storage Temperatures. Agronomy 2020, 10, 1694. https://doi.org/10.3390/agronomy10111694

AMA Style

Jahnke NJ, Dole JM, Bergmann BA, Ma G, Perkins-Veazie P. Extending Cut Paeonia Lactiflora Pall. Storage Duration Using Sub-Zero Storage Temperatures. Agronomy. 2020; 10(11):1694. https://doi.org/10.3390/agronomy10111694

Chicago/Turabian Style

Jahnke, Nathan J., John M. Dole, Ben A. Bergmann, Guoying Ma, and Penelope Perkins-Veazie. 2020. "Extending Cut Paeonia Lactiflora Pall. Storage Duration Using Sub-Zero Storage Temperatures" Agronomy 10, no. 11: 1694. https://doi.org/10.3390/agronomy10111694

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