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Involvement of Ethylene Synthetic Inhibitors in Regulating the Senescence of Cut Carnations through Membrane Integrity Maintenance

Fahmy Hassan
Fahmy Hassan
, 
Esmat Ali
Esmat Ali
 and 
Ragia Mazrou
Ragia Mazrou
   | Jun 30, 2020
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Published Online: Jun 30, 2020
Page range: 39 - 48
Received: Jan 01, 2020
Accepted: May 01, 2020
DOI: https://doi.org/10.2478/johr-2020-0010
Keywords
© 2020 Fahmy Hassan et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1

The impact of SNP (b), 1-MCP (c), and AgNPs (d) on the postharvest quality of cut carnation compared with the control (a). Photo was taken at 6th day after treatment
The impact of SNP (b), 1-MCP (c), and AgNPs (d) on the postharvest quality of cut carnation compared with the control (a). Photo was taken at 6th day after treatment

Fig. 2

Effects of 1-methylcyclopropene (1-MCP) at 200 mg·m−3, silver nanoparticles (AgNPs) at 100 mg·dm−3 and sodium nitroprusside (SNP) at 0.3 mM on relative water content (in %) of carnation cut flowers over vase life period. Values are means ± SE (n = 15). Letters represent statistical differences among treatments at each vase life day at 5% probability.
Effects of 1-methylcyclopropene (1-MCP) at 200 mg·m−3, silver nanoparticles (AgNPs) at 100 mg·dm−3 and sodium nitroprusside (SNP) at 0.3 mM on relative water content (in %) of carnation cut flowers over vase life period. Values are means ± SE (n = 15). Letters represent statistical differences among treatments at each vase life day at 5% probability.

Fig. 3

Effects of 1-methylcyclopropene (1-MCP) at 200 mg·m−3, silver nanoparticles (AgNPs) at 100 mg·dm−3 and sodium nitroprusside (SNP) at 0.3 mM on MDA content (μmol·ml−1) and MSI (%) of carnation cut flowers over vase life period. Values are means ± SE (n = 15). Letters represent statistical differences among treatments at each vase life day at 5% probability.
Effects of 1-methylcyclopropene (1-MCP) at 200 mg·m−3, silver nanoparticles (AgNPs) at 100 mg·dm−3 and sodium nitroprusside (SNP) at 0.3 mM on MDA content (μmol·ml−1) and MSI (%) of carnation cut flowers over vase life period. Values are means ± SE (n = 15). Letters represent statistical differences among treatments at each vase life day at 5% probability.

Fig. 4

Effects of 1-methylcyclopropene (1-MCP) at 200 mg·m−3, silver nanoparticles (AgNPs) at 100 mg·dm−3 and sodium nitroprusside (SNP) at 0.3 mM on ethylene production (nl·g−1 FW·h−1) of carnation cut flowers over vase life period. Values are means ± SE (n = 15). Letters represent statistical differences among treatments at each life day at 5% probability.
Effects of 1-methylcyclopropene (1-MCP) at 200 mg·m−3, silver nanoparticles (AgNPs) at 100 mg·dm−3 and sodium nitroprusside (SNP) at 0.3 mM on ethylene production (nl·g−1 FW·h−1) of carnation cut flowers over vase life period. Values are means ± SE (n = 15). Letters represent statistical differences among treatments at each life day at 5% probability.

Fig. 5

Effects of 1-methylcyclopropene (1-MCP) at 200 mg·m−3, silver nanoparticles (AgNPs) at 100 mg·dm−3 and sodium nitroprusside (SNP) at 0.3 mM on ACS activity (nmol·g−1 FW·h−1) and NOS activity (pmol·min−1·μg−1 protein) of carnation cut flowers over vase life period. Values are means ± SE (n = 15). Letters represent statistical differences among treatments at each vase life day at 5% probability.
Effects of 1-methylcyclopropene (1-MCP) at 200 mg·m−3, silver nanoparticles (AgNPs) at 100 mg·dm−3 and sodium nitroprusside (SNP) at 0.3 mM on ACS activity (nmol·g−1 FW·h−1) and NOS activity (pmol·min−1·μg−1 protein) of carnation cut flowers over vase life period. Values are means ± SE (n = 15). Letters represent statistical differences among treatments at each vase life day at 5% probability.

Longevity of carnation cut flowers pretreated with 1-methylcyclopropene (1-MCP), silver nanoparticle (AgNP), and sodium nitroprusside (SNP). Data are means ± SE (n = 15). Values with different letters are statistically significant according to Tukey-Kramer's multiple range test at 0.05 level

1-MCP treatments (mg·m−3)Vase life (days) and relative increment (%)AgNPs treatments (mg·dm−3)Vase life (days) and relative increment (%)SNP (mM)Vase life (days) and relative increment (%)
Control6.5 ± 0.6d (100)Control6.6 ± 0.9c (100)Control6.8 ± 0.8d (100)
1009.4 ± 0.9c (145)509.0 ± 0.7b (135)0.19.3 ± 0.6c (136)
20013.1 ± 0.4a (203)10012.1 ± 1.1a (182)0.212.1 ± 0.9b (177)
30011.9 ± 0.5b (184)15011.5 ± 0.8a (173)0.315.9 ± 1.3a (233)
0.414.2 ± 0.9a (208)
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