Pre and postharvest treatments to reduce the chilling injury in Lilium stems

• Rios-Florida, Lizeth G. ^[1] ; Arévalo-Galarza, Ma. de Lourdes ^[1] ; Martínez- Hernández, Aida ^[1] ; Cruz-Huerta, Nicacio ^[1]
  1. [1] Colegio de Postgraduados

     Colegio de Postgraduados

     México

     
• Localización: Agro Productividad, ISSN-e 2594-0252, Vol. 17, Nº. 9, 2024 (Ejemplar dedicado a: Septiembre), págs. 115-123
• Idioma: inglés
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• Resumen

  • Objective: To increase cold tolerance in floral stems of Lilium sp.  'Indian Summerset' stored for two and four weeks using pre- and postharvest treatments. Design/Methodology/Approach: In the first phase, ascorbic acid (AA; 4 mM), glycine betaine (GB; 100 mM), and distilled water (T) were applied, and pre-conditioning was carried out at 0 ºC for 24 h, then the steems were stored (6 ºC; 85% RH). In the second phase, pulse solutions of AA, GB, or T were applied for 24 h after harvest and stored (7 °C; 92 % RH) for two weeks. The variables evaluated were: fresh weight, solution absorption, foliage yellowing, floral opening, flower color, and vase life (VL). Results: Cold storage causes leaves yellowing, deformation, flower color fading, and reduces VL. Findings/Conclusions: Preharvest treatments did not have a significant effect on cold tolerance. In the second phase, the AA pulse solution delayed floral opening and maintained the flowers color, while GB only reduced the leaves yellowing.