Results 1 to 10 of about 10,896 (114)

Effects of light on the growth and photosynthesis of Egeria najas planchon [PDF]

open access: yesBrazilian Archives of Biology and Technology, 2003
Photosynthesis and growth of Egeria najas (Hydrocharitaceae) from a subtropical reservoir (Itaipu Reservoir, Brazil-Paraguay) were measured in response to low light intensities (0-124 µM m-2 s-1 PAR) in the laboratory.
Sidinei M Thomaz, Thomaz Sidinei Magela
exaly   +7 more sources

Controle de Egeria densa e Egeria najas em caixa-d'água utilizando o herbicida diquat Control of Egeria densa and Egeria najas in water tanks using diquat [PDF]

open access: yesPlanta Daninha, 2005
Este estudo foi realizado no Núcleo de Pesquisas Avançadas em Matologia da FCA/UNESP, campus de Botucatu-SP, com o objetivo de avaliar o controle de Egeria densa e Egeria najas, utilizando o herbicida diquat.
D. Martins, E.D. Velini, E. Negrisoli
doaj   +7 more sources

Diferenciação entre Egeria densa e Egeria najas pelos caracteres anatômicos foliares Differentiation between Egeria densa and Egeria najas by leaf anatomic characters

open access: yesPlanta Daninha, 2006
Dentre as plantas daninhas aquáticas imersas de maior importância nos reservatórios de usinas hidrelétricas e em represas de pequeno porte no Brasil, destacam-se as espécies Egeria densa e Egeria najas, cuja identificação pode ser difícil na fase ...
R.A. Rodella   +3 more
doaj   +3 more sources

Adjuvantes e herbicidas e a infectividade de Fusarium graminearum, agente potencial de biocontrole de Egeria densa e Egeria najas Adjuvants and herbicides and the infectivity of Fusarium graminearum, a potential biocontrol agent of Egeria densa and Egeria najas [PDF]

open access: yesPlanta Daninha, 2004
Foram estudados os efeitos da adição de adjuvantes e a associação com herbicidas na infectividade do fungo dentro do patossistema Fusarium graminearum x Egeria spp. Foram utilizadas plantas sadias de Egeria densa e E.
C.R. Borges Neto, R.A. Pitelli
doaj   +7 more sources

Eficácia do diquat no controle de Hydrilla verticillata, Egeria densa e Egeria najas e toxicidade aguda para o Guaru (Phallocerus caudimaculatus), em condições de laboratório Efficacy of diquat in the control of Hydrylla verticillata, Egeria densa and Egeria najas and its acute toxicity to Phallocerus caudimaculatus, under laboratory conditions [PDF]

open access: yesPlanta Daninha, 2011
No Brasil, as macrófitas aquáticas submersas, Egeria densa e Egeria najas, têm causado prejuízos aos usos múltiplos da água. Hydrilla verticillata foi recentemente introduzida, mas tem histórico como planta problemática nos EUA, no México e na Austrália.
M.N.P. Henares   +4 more
doaj   +8 more sources

Direct and indirect effects of climate change on distribution and community composition of macrophytes in lentic systems. [PDF]

open access: yesBiol Rev Camb Philos Soc, 2022
ABSTRACT Macrophytes are an important part of freshwater ecosystems and they have direct and indirect roles in keeping the water clear and providing structure and habitats for other aquatic organisms. Currently, climate change is posing a major threat to macrophyte communities by altering the many drivers that determine macrophyte abundance and ...
Lind L, Eckstein RL, Relyea RA.
europepmc   +2 more sources

Effects of Artificial Flooding for Hydroelectric Development on the Population of Mansonia humeralis (Diptera: Culicidae) in the Paraná River, São Paulo, Brazil. [PDF]

open access: yesJ Trop Med, 2012
The closure of two phases of the dam at the Porto Primavera Hydroelectric Plant on the Paraná River flooded a flawed system located in the Municipality of Presidente Epitácio, São Paulo state, favoring the proliferation of aquatic weeds. This study aimed to observe the population of Mansonia humeralis in the area, monitoring the richness, diversity ...
de Paula MB   +4 more
europepmc   +2 more sources

Adventitious shoot regeneration from leaf explant of dwarf hygro (Hygrophila polysperma (Roxb.) T. Anderson). [PDF]

open access: yesScientificWorldJournal, 2013
Dwarf hygro (Hygrophila polysperma) is an ornamental aquatic plant that changes its leaf colours to pinkish in high light. It is listed as a medicinal plant in medicinal plant lists of Indian states of West Bengal and Karnataka. It is also used as a screening tool for toxicities and a bioindicator to detect and control algae.
Karataş M, Aasim M, Çınar A, Dogan M.
europepmc   +2 more sources

Effects of temperature on decomposition of a potential nuisance species: the submerged aquatic macrophyte Egeria najas planchom (Hydrocharitaceae)

open access: yesBrazilian Journal of Biology, 2005
Decomposition of aquatic plants is influenced by several biotic and abiotic factors. Among them, temperature plays an important role. Despite the increasing number of studies describing the effects of temperature on the decomposition of aquatic ...
P Carvalho, S. M. Thomaz, L. M. Bini
doaj   +2 more sources

First record of Egeria densa Planch. (Hydrocharitaceae) for the aquatic Flora of Egypt [PDF]

open access: yesTaeckholmia, 2020
Egeria densa Planch. is reported for the first time for the aquatic flora of Egypt. This species is a South American aquatic plant species considered highly invasive outside of its original range.
Hasnaa Hosni, Eman Shamso
doaj   +2 more sources

Home - About - Disclaimer - Privacy