2009
DOI: 10.1590/s0102-33062009000200027
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Crescimento de Pistia stratiotes em diferentes condições de temperatura e fotoperíodo

Abstract: RESUMO -(Crescimento dePistia stratiotes em diferentes condições de temperatura e fotoperíodo). A temperatura e fotoperíodo são variáveis abióticas que influenciam diretamente a produção primária das macrófitas aquáticas, determinam a distribuição geográfica das espécies e afetam a estrutura das comunidades. O objetivo desse trabalho foi avaliar a influência de diferentes condições de temperatura e fotoperíodo no crescimento de Pistia stratiotes. Indivíduos de P. stratiotes foram acondicionados em câmaras clim… Show more

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Cited by 17 publications
(12 citation statements)
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“…The macrophytes used in the experiments were collected from stream-preserved ecosystems (23°50' -24°15'S and 46°35'-47°00'W) where E. crassipes and S. molesta occur naturally and abundantly (Cancian et al, 2009). The macrophyte biomass was homogeneously distributed to cover approximately 80% of the tanks surfaces.…”
Section: Methodsmentioning
confidence: 99%
“…The macrophytes used in the experiments were collected from stream-preserved ecosystems (23°50' -24°15'S and 46°35'-47°00'W) where E. crassipes and S. molesta occur naturally and abundantly (Cancian et al, 2009). The macrophyte biomass was homogeneously distributed to cover approximately 80% of the tanks surfaces.…”
Section: Methodsmentioning
confidence: 99%
“…The subsequent increase in the abundance of most planktonic communities and the development of free-floating macrophytes showed the stimulant effect of the flood pulse. Low temperatures and reduced photoperiod are known to impair the growth of Pistia stratiotes (Cancian et al 2009), thus explaining their limited cover and biomass during this period. The subfreezing daily temperatures as those registered from June to August have harmful effects on these macrophytes (Dewald and Lounibos 1990) and surely determined their drop by late winter.…”
Section: Discussionmentioning
confidence: 99%
“…É importante citar ainda a habilidade que esta macrófita possui de se regenerar a partir pequenas porções do talo, possuindo ainda independência total ou parcial das estruturas sexuais reprodutivas (MARTINS et al, 2002). Apesar da P. stratiotes possuir origem incerta, ela é uma macrófita de clima tropical, havendo vasta distribuição em ambientes aquáticos tropicais (CANCIAN, 2007).…”
Section: Introductionunclassified