Conservation of Alstroemeria cut flowers stored under refrigeration

Autor(es)

Galati, Vanessa Cury ^[1] ; Correa Muniz, Ana Carolina ^[2] ; Ribeiro Guimaraes, Joao Emmauel ^[3] ; Fabrino Mattiuz, Claudia Machado ^[4] ; Mattiuz, Ben Hur ^[5]

Afiliação do(s) autor(es)

^[1] Univ Fed Triangulo Mineiro, Av Rio Paranaiba 1229, BR-38280000 Iturama, MG - Brazil

^[2] Univ Estadual Paulista, Jaboticabal, SP - Brazil

^[3] Inst Municipal Ensino Super Bebedouro Victorio Ca, Bebedouro, SP - Brazil

^[4] Univ Sao Paulo, Piracicaba, SP - Brazil

^[5] Univ Estadual Paulista, Rio Claro, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ACTA SCIENTIARUM-TECHNOLOGY; v. 43, JAN-DEC 2021.
• Citações Web of Science: 0

Resumo

Alstroemeria flowers have shown great importance in the world trade of cut flowers due mainly to its beauty and wide variety of colors. However, the durability of its inflorescences is usually hampered by the rapid yellowing of the leaves, which impairs their decorative quality. Cut flowers require the use of technologies to improve postharvest quality and floral longevity. This research aimed to study the postharvest conservation of inflorescences of Alstroemeria cv. Ajax at different storage temperatures. Floral stems were placed in containers with distilled water and stored at four temperatures (4, 8, 12, and 22 degrees C) for 12 days. The following analyses were performed: fresh mass variation, respiratory activity, relative water content, soluble and reducing carbohydrate contents, polyphenol-oxidase and peroxidase enzymes, pigments (anthocyanin and carotenoids), and longevity. The experiment was conducted in a completely randomized design, the results were submitted to analysis of variance (ANOVA), and the effect of treatments submitted to F-test. Significant differences were compared using the least significant difference (LSD) at 95% confidence interval (p = 0.05). The temperatures of 8 and 12 degrees C were effective in maintaining the postharvest quality of inflorescences during storage period, as they remained turgid due to transpiration reduction caused by low temperatures, and longevity reaching 46 and 22 days, respectively. (AU)

• Processo FAPESP: 13/08167-1 - Aplicação de tecnologias pós-colheita para prolongar a vida útil de flores de Alstroemeria
• Beneficiário: Vanessa Cury Galati
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado