Impacts of storage on germination and development of red ginger seeds: a tropical ornamental species
DOI:
https://doi.org/10.1590/2447-536X.v30.e242784Keywords:
Alpinia purpurata, floriculture, temperature, tolerance to desiccationAbstract
Ornamental species exhibit variability in seed size, shape, color, and reserve tissue composition. These variations often affect seed germination and seedling development. Proper seed storage is essential for maintaining seed quality. Although seed quality is not improved during storage, seeds can be preserved under favorable conditions. The objective of this study was to assess the effects of storage temperature and period on the germination of Alpinia purpurata seeds. The experiment was conducted in a germinator and in a greenhouse, using a completely randomized design with four replications, in a 2x3 factorial arrangement consisting of two temperature conditions (ambient temperature at 25 °C; refrigeration temperature at 5 °C) and three storage periods [zero (control), 30, and 60 days]; each experimental unit consisted of 25 seeds. The evaluated variables were seed moisture content, percentages of germination and emergence, germination speed index, mean germination and emergence times, and seedling characteristics (shoot and root lengths and number of leaves). The results showed that the storage period negatively affected germination and the emergence and development of A. purpurata seedlings.
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