Consulta: creatorFacets:"Ferraz,Isolde D.K."
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Seed size influence on germination responses to light and temperature of seven pioneer tree species from the Central Amazon
Provedor de dados: 42
Autores: Aud,Fabiana F.; Ferraz,Isolde D.K.
In Amazon secondary forests are dominated by pioneer species that typically produce large amounts of small and dormant seeds that are able to form a persistent soil seed bank. Seed dormancy in this group of species is overcome by environmental conditions found in open areas, such as high irradiation or alternating temperatures. Nevertheless, a variety of germination responses to environmental factors is known among pioneers; some of them may germinate in diffuse light or in darkness condition at constant temperature. Seed mass can be considered as one of the factors that promotes this variety. Regarding species with very small seeds, it seems that the trigger for germination is light and for larger seeds temperature alternation may be a more important...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternating temperatures; Germinability; Mean germination time; Photoblastic germination; Secondary forests; Tropical trees.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000300018