Articles
Consequences of divergent vase solutions on postharvest durability and quality of Heliconia inflorescences
Article number
1256_12
Pages
77 – 94
Language
English
Abstract
Heliconia the most flourishing cut flower in the tropics owing to its charismatic form and alluringly blended hues of its bracts.
To label postharvest complications and also to protract vase life for a substantial span the present experiment was designed using antithetical vase solutions of various concentrations and fresh, mature, cut spikes of nine different Heliconia species and cultivars.
T5 and T6 treatment combinations contain AgNO3 at 1500 ppm and CaCl2 at 750 mg L‑1 along with 8-HQC at 500 mg L‑1 and sucrose 2% outstandingly elevated solution uptake and flower opening inside bracts principally in all species and cultivars, respectively.
Untreated spikes of Heliconia psittacorum Lady di, Heliconia wagneriana, Heliconia stricta, Heliconia humilis Dwarf and Heliconia metallica exhibited noteworthy fresh weight retention on the 8th day exceptionally while in contrast T4, T5, T7 and T3 evinced themselves unrivalled for rest of the genotypes for the same duration.
To preserve bract and flowers carotene, anthocyanin and chlorophyll pigments all treatments impact were truly species specific apparently.
T7 and T9 hold GA3 at 80 ppm and citric acid at 200 mg L‑1 along with germicide and sucrose, respectively, besides T5 and T6 also yield utmost vase life being impeded senescence in all inflorescences.
These identical treatments amplified the levels of catalase, peroxidase enzymatic activities and collaterally declined the lipid peroxidation on 7 days in the bract.
Therefore, the present study concludes that AgNO3, CaCl2, GA3 and citric acid at mentioned concentration renders magnificent beneficial effects on vase life attributes being subsisted with oxidative stress of Heliconia inflorescences.
To label postharvest complications and also to protract vase life for a substantial span the present experiment was designed using antithetical vase solutions of various concentrations and fresh, mature, cut spikes of nine different Heliconia species and cultivars.
T5 and T6 treatment combinations contain AgNO3 at 1500 ppm and CaCl2 at 750 mg L‑1 along with 8-HQC at 500 mg L‑1 and sucrose 2% outstandingly elevated solution uptake and flower opening inside bracts principally in all species and cultivars, respectively.
Untreated spikes of Heliconia psittacorum Lady di, Heliconia wagneriana, Heliconia stricta, Heliconia humilis Dwarf and Heliconia metallica exhibited noteworthy fresh weight retention on the 8th day exceptionally while in contrast T4, T5, T7 and T3 evinced themselves unrivalled for rest of the genotypes for the same duration.
To preserve bract and flowers carotene, anthocyanin and chlorophyll pigments all treatments impact were truly species specific apparently.
T7 and T9 hold GA3 at 80 ppm and citric acid at 200 mg L‑1 along with germicide and sucrose, respectively, besides T5 and T6 also yield utmost vase life being impeded senescence in all inflorescences.
These identical treatments amplified the levels of catalase, peroxidase enzymatic activities and collaterally declined the lipid peroxidation on 7 days in the bract.
Therefore, the present study concludes that AgNO3, CaCl2, GA3 and citric acid at mentioned concentration renders magnificent beneficial effects on vase life attributes being subsisted with oxidative stress of Heliconia inflorescences.
Authors
M. Malakar, P. Acharyya, S. Biswas
Keywords
Heliconia, vase life, catalase, peroxidase, lipid peroxidation, senescence
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