Abstract

The efficacy of the novel potassium bicarbonate formulation Karma (Certis Europe) for controlling Penicillium decay of orange fruit was tested. In vitro trials were carried out by amending potato dextrose agar (PDA) medium with different Karma concentrations, thereby revealing a complete inhibition of Penicillium digitatum, P. italicum, and P. ulaiense growth at 0.3, 0.3, and 0.2% (w/v), respectively. In vivo trials using dipping and spraying application strategies were conducted on Valencia late and Tarocco, two sweet orange cultivars with different degrees of susceptibility to Penicillium rot. Fruit treated with unformulated potassium bicarbonate (PB) or water served as controls. When applied by dipping, Karma and PB at 3% significantly reduced the incidence of Penicillium decay of cv. Valencia late oranges, i.e. by 79 and 31%, respectively. On the other hand, when applied by spraying, 6% Karma and PB were needed to completely inhibit decay incidence. On cv. Tarocco oranges, Karma and PB applied at 3% by dipping reduced the percentage of Penicillium decay, by a significant 87 and 68%, respectively. However, when applied by spraying at 6%, no difference was observed between the two treatments. Overall, Karma performed better than PB in controlling Penicillium rots and dipping proved to be the best application strategy.

Autore Pugliese

• Ippolito Antonio

Tutti gli autori

• IPPOLITO A.

Titolo volume/Rivista

Non Disponibile

Anno di pubblicazione

2014

ISSN

1125-4653

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

1

Ultimo Aggiornamento Citazioni

Non Disponibile

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile