RT conferenceObject
T1 Eficácia dos extratos de romã no controlo de doenças pós-colheita em laranjas ‘Navelina’
A1 Salazar, Miguel
A1 Nunes, Carla
A1 Tereso Ferreira, David
A1 Rebocho, Elisabete
A1 Palou, Lluís
A1 Tereso Ferreira, Diana
A2 DuarteAmílcar
K1 Frutas Tereso
K1 Secondary screening
K1 Semi-commercial testing
K1 'Wonderful'
K1 J10  Handling, transport, storage and protection of agricultural products
K1 Q02  Food processing and preservation
K1 Penicillium digitatum
AB Efficacy of pomegranate extracts on controlling post-harvest diseases in‘Navelina’ orangesControlling post-harvest diseases through the use of plant protection products isbecoming increasingly difficult, with strict limitations, loss of effectiveness and thepublic and markets demand for less or even residue-free products.As so, horticultural sector needs to effectively minimize post-harvest pathogenicfungal rot losses in citrus fruits with a reduced use of plant protection products. The literature indicates that different natural extracts, such as pomegranate skin extracts, havegrowth control properties of Penicillium digitatum.The objective of this work was to verify the effectiveness of pomegranate extractsin reducing postharvest losses of citrus fruits that Frutas Tereso markets, caused by themain postharvest pathogenic fungus P. digitatum.Water and methanol extracts of pomegranate skin from the varieties 'Acco'‘Wonderful’ and 'Mollar de Elche' were obtained and secondary screening and semicommercialtesting on 'Navelina' oranges were performed.In secondary screening in 'Navelina' oranges, treatment with aqueous extract of the'Wonderful' pomegranate variety at a dry residue concentration of 1.2% versus controlallowed a reduction in rot incidence of over 47% at day 7 and over 37% at day 10. Withmethanol solvent at a dry residue concentration of 2%, the reduction in the incidence ofdecay over the control was greater than 47% at days 7 and 10. In the semi-commercialtrial, Wonderful-Methanol-2% treatment was the most effective: the reduction inincidence, sporulation and severity with this treatment was 33%, 44% and 40%,respectively.Tests indicate that pomegranate extract treatments, particularly 2% 'Wonderful'methanolic extracts, are effective in reducing the incidence, severity, and sporulation ofP. digitatum rot in 'Navelina'.
PB Associação Portuguesa de Horticultura (APH)
SN 978-972-8936-35-8
YR 2020
FD 2020
LK http://hdl.handle.net/20.500.11939/7432
UL http://hdl.handle.net/20.500.11939/7432
LA por
NO Tereso Ferreira, D., Salazar, M., Nunes, C., Tereso Ferreira, D., Rebocho, E., & Palou L. (2020). Eficácia dos extratos de romã no controlo de doenças pós-colheita em laranjas ‘Navelina’. Actas Portuguesas de Horticultura 32: 421-427.
DS MINDS@UW
RD May 27, 2022