Data di Pubblicazione:
2009
Citazione:
Lignin content and stem bending incidence on cut gerbera flowers / A. Ferrante, G. Serra. - In: ACTA HORTICULTURAE. - ISSN 0567-7572. - 807(2009), pp. 407-412.
Abstract:
The stem bending or break is the main postharvest disorder in cut gerbera
flowers. Factors involved on stem bending incidence are several and are still under
investigation. The genetic background seems to be the major factor in preventing stem
bending. The stem biochemical composition, in particular, lignin content is directly
involved in stem bending. The aim of this work was to evaluate the effect of lignin biosynthesis
promoters and inhibitor on cut gerbera stem bending. Cut gerbera flowers
were obtained from local growers and immediately transferred to postharvest evaluation
room. They were screened and selected in order to have homogenous samples.
Chemical compounds were applied as pulse treatments for 24 h using 150 or 300 μM
acibenzolar-s-methyl (BTH) or 800 μM α-aminooxi-β-phenylpropionic acid (AOPP).
During postharvest life the vase life, the stem bending incidence, PAL activity,
total phenols and soluble lignin content were measured. Results showed that total
phenols and PAL activity were higher in the cultivar that showed lower stem bending
incidence. Unfortunately the BTH and AOPP were ineffective. BTH concentrations
used to show phytotoxicity symptoms and did not positively affect lignin content in
gerbera stems.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Actiwave; Chlorophyll; Environmental friendly; Leafy vegetables; Nitrate; Yield
Elenco autori:
A. Ferrante, G. Serra
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