SciELO journals
Browse
1/1
6 files

Investigation of dormancy and storage potential of seeds of yellow passion fruit

dataset
posted on 2019-09-11, 02:45 authored by Camila Ribeiro de Souza Grzybowski, Rosemeire Carvalho da Silva, Andreza Cerioni Belniaki, Maristela Panobianco

Abstract: Passiflora actinia Hooker is a passion fruit species native to Brazil, typically found in the Atlantic and Araucaria Forests. It has economic relevance (edible fruit) and medicinal value (sedative and anxiolytic properties), in addition to being used for vegetative propagation, as rootstock for other Passiflora species. This study aimed at investigating the occurrence of dormancy in P. actinia seeds, and at evaluating their storage potential. The germination test considered different combinations of temperature and lighting regimes, whereas seed dormancy was assessed using different germination-inducing treatments (tegument cutting, warm water immersion, and gibberellin application). Seed viability during storage was also appraised. The results showed that seed germination should be conducted on paper at the alternating temperature of 20-30 °C, without lighting. Also, newly-harvested seeds presented physical and physiological dormancies. The immersion of seeds in water at 40 °C or 50 °C (for 5 or 10 minutes) proved to be efficient in breaking the physical dormancy. Physiological dormancy, in turn, was successfully interrupted by applying 100 mg. L-1 of gibberellic acid on the substrate paper. The storage of seeds under refrigeration, inside hermetically sealed polyethylene packaging, preserved their physiological quality for up to nine months.

History

Usage metrics

    Journal of Seed Science

    Categories

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC