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Effects of three different nano-silver formulations on cut Acacia holosericea vase life

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Liu, J. P., Ratnayake, K., Joyce, D. C., He, S. G. and Zhang, Z. Q. (2012) Effects of three different nano-silver formulations on cut Acacia holosericea vase life. Postharvest Biology and Technology, 66 . pp. 8-15. ISSN 0925-5214

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Article Link: http://dx.doi.org/10.1016/j.postharvbio.2011.11.00...


The relative efficacies of three chemically different nano-silver (NS) formulations were evaluated for their potential to extend the vase life of short-lived cut Acacia holosericea foliage. The novel proprietary formulations were neutral NS, acidic NS and ionic NS. They were characterised in terms of particle size, pH value, colour and odour. The NS treatments were applied as vase (lower concentrations) or pulse (higher concentrations) solutions. Among the treatments compared, neutral NS as a 4 mg L-1 vase solution or as a 40 mg L-1 24 h pulse treatment and acidic NS as a 0.5 mg L-1 vase solution or as a 5 mg L-1 24 h pulse treatment significantly (P <= 0.05) extended the vase life of A. holosericea. Vase life extensions over the deionised water (DI) controls were associated with better maintenance of relative fresh weight and vase water uptake, suppression of bacterial growth in the vase water and stem-end, and delaying stem blockage. In contrast, ionic-NS applied as a 0.5 or 1 mg L-1 vase solution treatment or as a 5 or 10 mg L-1 pulse treatment caused severe phytotoxicity to cut A. holosericea stems. The results suggest that NS treatments, especially neutral NS and acidic NS pulse treatments, could be a potential postharvest technology for commercial application to cut A. holosericea. (C) 2011 Elsevier B.V. All rights reserved.

Item Type:Article
Business groups:Horticulture and Forestry Science
Additional Information:Liu, Jiping Ratnayake, Kamani Joyce, Daryl C. He, Shenggen Zhang, Zhaoqi
Subjects:Plant culture > Flowers and flower culture. Ornamental plants > Care and preparation of cut flowers and ornamental plants for market
Live Archive:18 Mar 2014 05:02
Last Modified:03 Sep 2021 16:49

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