Summary
This study evaluated the impact of different flowering stages on the quality attributes of daylily ( Hemerocallis citrina Baroni) flowers. Analysis of samples from three flowering stages (initial, full bloom, and final) revealed distinct biochemical profiles that provide a framework for optimizing harvest timing. The initial flowering stage showed the highest concentrations of multiple compounds. These included phenolics (6.2±0.6 mg/g DW), flavonoids (1.55±0.01 mg/g DW), calcium (3078±1 μg/g DW), and total sugars (190±1 mg/g DW). Full bloom stage exhibited peak concentrations of amino acids (41.05±0.01 mg/g DW), potassium (1982±3 μg/g DW), and magnesium (1392±3 μg/g DW). Phenolic compounds showed U-shaped distribution, decreasing at full bloom before partially recovering during final flowe
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