Psidium guajava and Piper betle leaf extracts prolong vase life of cut carnation (Dianthus caryophyllus) flowers.

ScientificWorldJournal · 2012 · PMC3353322 · PMID 22619568

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a decreasing trendno p-value reported

However, all the Pallas Orange carnation flowers showed a decreasing trend of L * values from days 1–5 ( Figure 3(b) ).

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