Data/hora: 09/06/2024 11:42:02

Provedor de dados: | 190
País: | Brazil

Título:

Morphological characterization and germination of seeds of Casearia decandra

Caracterização morfológica de frutos, sementes, plântulas e germinação de sementes de Casearia decandra

Autores: | Haliski, Sérgio Luis; Cosmo, Nelson Luiz; Gogosz, Alessandra Mara; Rego, Suelen Santos; Nogueira, Antonio Carlos; Saito Kuniyoshi, Yoshiko.
Data: | 2013-09-30
Ano: | 2013
Palavras-chave: | Salicaceae; Temperature; Substrate; Forest Recursos Florestais; Engenharia Florestal; Sementes Florestais; Morfologia Vegetal Salicaceae; Temperatura; Substrato; Florestal.
Resumo: | 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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português

Identificador:

http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/451

10.4336/2013.pfb.33.75.451

Editor: | Embrapa Florestas
Relação: | http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/451/324
Formato: | application/pdf

Fonte:

Brazilian Journal of Forestry Research; v. 33, n. 75 (2013): jul./set.; 253-259

Pesquisa Florestal Brasileira; v. 33, n. 75 (2013): jul./set.; 253-259

1983-2605

1809-3647

Fonte:

Direitos autorais 2015 Pesquisa Florestal Brasileira

http://creativecommons.org/licenses/by-nc-nd/4.0