Postharvest illumination of alstroemeria: Effect of light quality on flower metabolism and shelf life

Despite the good postharvest performance of alstroemeria flowers, leaf yellowing is one of the most important signs of senescence and decay, as well as the flower size and time to abscission. In this work, we tested the effect of 50 μmol m-2 s-1 white (WL, broad spectrum) and red-blue (RBL, 40:60, 6...

Descripción completa

Detalles Bibliográficos
Autores principales: Pintos, Federico Martín, Nico, Andrés Ignacio, Rodoni, Luis María, Cieza, Ramón Isidro, Hasperué, Héctor Joaquín
Formato: Articulo
Lenguaje:Inglés
Publicado: 2023
Materias:
Ciencias Agrarias
White light
Red-blue light
Sugars
Tepal area
Yellowing
Senescence
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/157051
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-157051
record_format dspace
spelling I19-R120-10915-1570512023-08-30T20:04:12Z http://sedici.unlp.edu.ar/handle/10915/157051 Postharvest illumination of alstroemeria: Effect of light quality on flower metabolism and shelf life Pintos, Federico Martín Nico, Andrés Ignacio Rodoni, Luis María Cieza, Ramón Isidro Hasperué, Héctor Joaquín 2023 2023-08-30T14:52:48Z en Ciencias Agrarias White light Red-blue light Sugars Tepal area Yellowing Senescence Despite the good postharvest performance of alstroemeria flowers, leaf yellowing is one of the most important signs of senescence and decay, as well as the flower size and time to abscission. In this work, we tested the effect of 50 μmol m-2 s-1 white (WL, broad spectrum) and red-blue (RBL, 40:60, 630 + 465 nm) light-emitting diodes on cut alstroemeria stored at 20 ◦C, or WL on cut alstroemeria stored at 5 ◦C, on postharvest flower quality and vase life. The light-treated floral stems had higher water consumption throughout storage compared to the controls stored in the dark, with no variation in stem diameter. The tepal area was increased by the light treatment at both storage temperatures. The leaf color remained similar to that at harvest in the light-treated flower stems (WL and RBL), while there was a strong yellowing in the controls stored in the dark. Anthocyanins increased mostly in flowers stored under WL, although this was more evident at 20 ◦C. WL treatment strongly slowed chlorophyll degradation and increased sugar content in leaves and tepals by 3.4 and 1.8 times, respectively, at 20 ◦C, and by 6 and 2.9 times, respectively, at 5 ◦C. The increase in sugar levels in light-treated flowers may have caused the tepal expansion but also delayed the onset of leaf senescence, and consequently the tepal abscission. The WL was the most effective storage condition not only to extend cut alstroemeria shelf life, but also to improve the postharvest flower quality, both at room temperature and under refrigeration. Laboratorio de Investigación en Productos Agroindustriales Consejo Nacional de Investigaciones Científicas y Técnicas Articulo Articulo http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
White light
Red-blue light
Sugars
Tepal area
Yellowing
Senescence
spellingShingle Ciencias Agrarias
White light
Red-blue light
Sugars
Tepal area
Yellowing
Senescence
Pintos, Federico Martín
Nico, Andrés Ignacio
Rodoni, Luis María
Cieza, Ramón Isidro
Hasperué, Héctor Joaquín
Postharvest illumination of alstroemeria: Effect of light quality on flower metabolism and shelf life
topic_facet Ciencias Agrarias
White light
Red-blue light
Sugars
Tepal area
Yellowing
Senescence
description Despite the good postharvest performance of alstroemeria flowers, leaf yellowing is one of the most important signs of senescence and decay, as well as the flower size and time to abscission. In this work, we tested the effect of 50 μmol m-2 s-1 white (WL, broad spectrum) and red-blue (RBL, 40:60, 630 + 465 nm) light-emitting diodes on cut alstroemeria stored at 20 ◦C, or WL on cut alstroemeria stored at 5 ◦C, on postharvest flower quality and vase life. The light-treated floral stems had higher water consumption throughout storage compared to the controls stored in the dark, with no variation in stem diameter. The tepal area was increased by the light treatment at both storage temperatures. The leaf color remained similar to that at harvest in the light-treated flower stems (WL and RBL), while there was a strong yellowing in the controls stored in the dark. Anthocyanins increased mostly in flowers stored under WL, although this was more evident at 20 ◦C. WL treatment strongly slowed chlorophyll degradation and increased sugar content in leaves and tepals by 3.4 and 1.8 times, respectively, at 20 ◦C, and by 6 and 2.9 times, respectively, at 5 ◦C. The increase in sugar levels in light-treated flowers may have caused the tepal expansion but also delayed the onset of leaf senescence, and consequently the tepal abscission. The WL was the most effective storage condition not only to extend cut alstroemeria shelf life, but also to improve the postharvest flower quality, both at room temperature and under refrigeration.
format Articulo
Articulo
author Pintos, Federico Martín
Nico, Andrés Ignacio
Rodoni, Luis María
Cieza, Ramón Isidro
Hasperué, Héctor Joaquín
author_facet Pintos, Federico Martín
Nico, Andrés Ignacio
Rodoni, Luis María
Cieza, Ramón Isidro
Hasperué, Héctor Joaquín
author_sort Pintos, Federico Martín
title Postharvest illumination of alstroemeria: Effect of light quality on flower metabolism and shelf life
title_short Postharvest illumination of alstroemeria: Effect of light quality on flower metabolism and shelf life
title_full Postharvest illumination of alstroemeria: Effect of light quality on flower metabolism and shelf life
title_fullStr Postharvest illumination of alstroemeria: Effect of light quality on flower metabolism and shelf life
title_full_unstemmed Postharvest illumination of alstroemeria: Effect of light quality on flower metabolism and shelf life
title_sort postharvest illumination of alstroemeria: effect of light quality on flower metabolism and shelf life
publishDate 2023
url http://sedici.unlp.edu.ar/handle/10915/157051
work_keys_str_mv AT pintosfedericomartin postharvestilluminationofalstroemeriaeffectoflightqualityonflowermetabolismandshelflife
AT nicoandresignacio postharvestilluminationofalstroemeriaeffectoflightqualityonflowermetabolismandshelflife
AT rodoniluismaria postharvestilluminationofalstroemeriaeffectoflightqualityonflowermetabolismandshelflife
AT ciezaramonisidro postharvestilluminationofalstroemeriaeffectoflightqualityonflowermetabolismandshelflife
AT hasperuehectorjoaquin postharvestilluminationofalstroemeriaeffectoflightqualityonflowermetabolismandshelflife
_version_ 1807221143749263360

Ejemplares similares