Morphological characterization and germination of seeds of Casearia decandra
DOI:
https://doi.org/10.4336/2013.pfb.33.75.451Keywords:
Salicaceae, Temperature, Substrate, ForestAbstract
This study aimed at to characterize morphologically the fruits, seeds and seedling development of Casearia decandra and examine the best substrate and temperature for seed germination. The fruits were collected from 13 mothers in the municipality of Irati, Parana State, Brazil. Tests were conducted to determine the weight of 1,000 seeds, number of seeds per kilogram and the seeds moisture content. To test the influence of different substrate and temperature on germination it was tested four temperatures: 20 ºC, 25 ºC, 30 ºC and 35 ºC on four substrates: sand, paper towels, roll paper and vermiculite. The fruit is spherical, with dry pericarp, thin, with glabrous , smooth, and light yellow surface. The seed presents ellipsoid shape, chartaceous, creamy and lightly striated tegument. It has fleshy and orange arils, and fleshy endosperm. The embryo is spatulate, light green, with short axis and heart-shaped paracotyledons. The seedling is epigeous and phanerocotyledonal. The paracotyledons are opposite, heart-shaped and with entire margin. Eophylls are alternate, elliptical, with serrate margins. In the epicotyl occurs small axial stipules. The best germination results were obtained with temperatures of 20 °C, 25 °C and 30 °C with the substrate paper roll.
Downloads
Downloads
Published
How to Cite
Issue
Section
License
Pesquisa Florestal Brasileira (PFB) licenses all its published content under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0).
- Copyright: Authors maintain the copyright to their work. PFB holds the right to the first publication, and use rights under the specific Creative Commons deed.
- Editing and revision: PFB reserves the right to edit the original manuscript to ensure conformity with the standards, spelling and grammar of the Portuguese language, while respecting the style of the author(s). The final version of the text shall be sent to the corresponding author for approval prior to publication.
- Sharing and reuse: The CC BY-NC-ND 4.0 license permits sharing of the article in its original version, as long as credit is given to the journal and the authors and the material is not used for commercial purposes. No alterations or adaptations of the original content are permitted.
- Figures and illustrations: Figures and illustrations published in PFB may only be used with express prior authorization from Embrapa Forestry.
- Disclaimer: The opinions and beliefs expressed in the texts published herein are the exclusive responsibility of their respective authors and not PFB.

