Integrative effects of melatonin and putrescine on vase life and physiological traits in cut alstroemeria 'Amatista'.

ABSTRACT: This study evaluated the physiological, biochemical traits, molecular responses, and vase life of cut Alstroemeria hybrida 'Amatista' in response to preharvest applications of putrescine and melatonin. A factorial experiment was arranged in a completely randomized design with three replications. The treatments included foliar sprays of putrescine (0, 1.5, and 3 mM), melatonin (0, 50, and 100 µM), and four postharvest sampling times (0, 5, 10, and 15 days). Measured parameters included chlorophyll index, relative fresh weight, solution uptake, ion leakage, malondialdehyde (MDA), hydrogen peroxide (H₂O₂), polyphenol oxidase (PPO) activity, vase life, and the relative expression of chlorophyllase (CHL) and ACC oxidase (ACO) genes. Postharvest senescence was associated wi

SUBMITTER: Esgandian NM 

PROVIDER: S-EPMC12581583 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature