Data/hora: 10/06/2024 04:42:06

Provedor de dados: | Ciência Rural
País: | Brazil
Título: | Application of hypergravity in Eucalyptus and Corymbia seeds
Autores: | Nunes,Andrei Caíque Pires; Santos,Glêison Augusto dos; Santos,Marlise Araújo dos; Russomano,Thais; Santos,Osmarino Pires dos; Valente,Brígida Maria dos Reis Teixeira; Resende,Marcos Deon Vilela de.
Data: | 2018-01-01
Ano: | 2018
Palavras-chave: | Rowth increment; Forest breeding; Simulated-gravity.
Resumo: | ABSTRACT: The aim of this study was to evaluate the growth responses of various Eucalyptus and Corymbia species subjected to different intensities of simulated hypergravity relative to the control. A centrifuge was used to simulate hypergravity. It was developed and built at the Centro de Microgravidade of the Pontifícia Universidade Católica do Rio Grande do Sul, Brazil. Seeds of five Eucalyptus and one Corymbia species (E. grandis, Eucalyptus globulus, Eucalyptus benthamii, Eucalyptus saligna, Eucalyptus dunnii, and C. maculata) were placed on moist germination paper in plastic containers and rotated at speeds simulating 5 Gz and 7 Gz for different lengths of time. Hypergravity technology significantly increased seedling production (diameter, height, and survival at 120 days) in nurseries. In E. globulus, the effects of hypergravity were significant at 7 Gz at all lengths of time (from 1 d to 9 days). Effects of hypergravity were significant in both E. benthamii and E. grandis at 7 Gz and 8 h exposure. Therefore, simulated hypergravity could be used in performance tests of Eucalyptus seedlings in early stages of development.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000200301
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20170233
Formato: | text/html
Fonte: | Ciência Rural  v.48 n.2 2018
Fonte: | info:eu-repo/semantics/openAccess