Postharvest evaluation of natural coatings and antifungal agents to control Botrytis cinerea in Rosa sp.

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15 Citas (Scopus)


Botrytis cinerea is a fungal pathogen that limits rose production and commercialization worldwide. Therefore, we evaluated a novel postharvest treatment against Botrytis cinerea in roses (Rosa sp. cv Vendela) using coating bases and antifungal agents of natural origin. Aloe vera pulp, cassava starch and gelatin were used as coating bases. Oregano essential oil (Origanum vulgare), thyme essential oil (Thymus vulgaris) and chitosan were used as natural antifungal agents. The coating bases were evaluated in different concentrations to observe effects of toxicity and opening diameter in rose buds. Gelatin and cassava starch coatings inhibited rose opening and showed petal damage in all concentrations tested. However, Aloe vera pulp at 25% allowed normal buds’ opening and no damage was observed, indicating that Aloe vera could be an ideal coating base for rose postharvest treatments. During in vitro assays, natural antifungal agents efficiently inhibited Botrytis cinerea growth in the concentrations tested. Further, mixture treatments of Aloe vera pulp (25%) with oregano essential oil (1%), thyme essential oil (0.1%) and chitosan (0.1%) showed independently neither damage nor opening inhibition in rose buds. Selected combinations of Aloe vera pulp and natural antifungal agents were applied in roses infected with Botrytis cinerea to evaluate their control of this pathogen. Unfortunately, the selected combinations did not reduce pathogen growth during postharvest treatments since they were similar to untreated controls. Further research has to be performed to find ideal combinations with Aloe vera that could inhibit B. cinerea during postharvest treatments in roses.

Idioma originalInglés
Páginas (desde-hasta)9-20
Número de páginas12
EstadoPublicada - 1 feb. 2017


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