Storage time and conditions affect the physiological quality of Solanum lycocarpum seeds
DOI:
https://doi.org/10.17765/2176-9168.2025v18e14128%20Keywords:
Cerrado, Lobeira, Propagation of native species, Seed conservation, Seed storageAbstract
Lobeira is a native species of the Cerrado with agronomic potential. The main form of propagation of
the species is by seeds. However, little is known about the ideal storage conditions for its seeds. Thus, the objective
of the study was to determine how the storage environment affects the viability of S. lycocarpum seeds over 150 days.
A completely randomized design was used in a 2x6 factorial scheme. Two storage environments (without
environmental control and cold chamber at 15°C) and six periods (0, 30, 60, 90, 120, and 150 days after collection)
were tested. Moisture content, membrane permeability, emergence speed index (ESI), and average emergence time
(AET) were evaluated. The results showed that seeds stored without environmental control had lower membrane
permeability, lower moisture content, and AET, and higher ESI than those stored in a cold chamber over time. This
shows that refrigeration did not favor the conservation of lobeira seeds, highlighting a physiological peculiarity that
is still poorly documented. Therefore, the study contributes by demonstrating that traditional storage strategies may
not be suitable for the species, supporting management in conservation and seedling production actions.
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