Results 31 to 40 of about 8,166 (208)

ARROZ VERMELHO: ECOFISIOLOGIA E ESTRATÉGIAS DE CONTROLE [PDF]

open access: yesCiência Rural, 2001
A interferência exercida pelo arroz vermelho (Oryza sativa L.) sobre o arroz cultivado (O. sativa L.) é o principal fator que limita o aumento do potencial de rendimento do cereal no Rio Grande do Sul. Este trabalho de revisão tem por objetivo descrever as características ecofisiológicas do arroz vermelho, bem como discutir estratégias que favoreçam o ...
Agostinetto, Dirceu   +4 more
openaire   +3 more sources

THE EFFECT OF THE TEMPERATURE AND LIGHT ON THE SEED GERMINATION OF Dalbergia cearensis Ducke

open access: yesCiência Florestal, 2014
The knowledge about the germination behavior of a plant species is major important to the adoption of the techniques that aim its spreading. The work analyzed the seed germination process of Dalbergia cearensis Ducke in the presence and absence of light,
Francisco Carlos Barboza Nogueira   +3 more
doaj   +1 more source

An overview of the contribution of studies with cladocerans to environmental stress research

open access: yesActa Limnologica Brasiliensia, 2015
Cladocerans are microcrustaceans component of the zooplankton in a wide array of aquatic ecosystems. These organisms, in particular the genus Daphnia, have been widely used model organisms in studies ranging from biomedical sciences to ecology.
Albert Luiz Suhett   +4 more
doaj   +1 more source

Zoneamento agrícola para a produção de sementes de cebola em Santa Catarina

open access: yesAgropecuária Catarinense, 2022
Diante da necessidade de se levarem aos produtores de sementes informações atualizadas sobre as regiões mais adequadas e sobre as melhores épocas para a produção, foi desenvolvido este trabalho de zoneamento agrícola para a produção de sementes de ...
Zenório Piana   +7 more
doaj  

Field assessment of nitrogen sources in Brassica carinata using physiological indicators of nitrogen status under temperate no‐till conditions

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 1, March 2026.
Abstract Improving nitrogen (N) use efficiency in Brassica carinata is essential to sustain yield and lower biofuel carbon intensity under variable field conditions. We hypothesized that integrating physiological indicators, such as the nitrogen nutrition index (NNI) and the critical nitrogen uptake curve (CriNUC), into N management frameworks would ...
Sebastián Bonansea   +3 more
wiley   +1 more source

Influência do fotoperíodo e da temperatura no cultivo da cebola

open access: yesAgropecuária Catarinense, 2022
Assim, foi desenvolvido este trabalho, com o objetivo de se buscar um melhor entendimento de como o fotoperíodo e a temperatura atuam sobre o cultivo da cebola, de forma a proporcionar aos agricultores catarinenses informações que lhe permitam obter a ...
Carlos Luiz Gandin   +3 more
doaj  

A pressurising system for long-term study of marine or freshwater organisms enabling the simulation of cyclic vertical migrations

open access: yesScientia Marina, 2004
A computer-controlled pressurising system enabling large aquatic organisms like marine fishes to be maintained for long periods is described. The paper presents a system that is capable not only of maintaining constant hydrostatic pressures but also of ...
Alfredo Damasceno-Oliveira   +4 more
doaj   +1 more source

Precipitation and Temperature‐Dependent Locomotor Performance Drive the Abundance of a Neotropical Lizard

open access: yesBiotropica, Volume 57, Issue 6, November 2025.
We investigated how climate and ecophysiology affect the demography of the lizard Tropidurus oreadicus in the Brazilian Cerrado. While lizards were more frequently captured in the dry season, their abundance peaked during the rainy season when their locomotor performance was highest.
Raquel da Silva Acácio   +4 more
wiley   +1 more source

Ecofisiologia da germinação de sementes de Campomanesia pubescens [PDF]

open access: yesCiência Rural, 2011
A gabiroba de arbusto [Campomanesia pubescens (DC.) O. Berg. (Myrtaceae)], espécie nativa do Cerrado é considerada uma planta com potencial melífero, ornamental e medicinal. Com o objetivo de avaliar a influência de diferentes temperaturas, substratos e condições de luminosidade e da secagem, na qualidade fisiológica de suas sementes foram conduzidos ...
Dousseau, Sara   +5 more
openaire   +3 more sources

Knowledge from non‐English‐language studies broadens contributions to conservation policy and helps to tackle bias in biodiversity data

open access: yesJournal of Applied Ecology, Volume 62, Issue 9, Page 2148-2162, September 2025.
Collecting data from local sources markedly further strengthens global biodiversity databases by adding species not previously included in international datasets. Furthermore, the addition of these data helps to understand spatial and temporal biases that potentially influence abundance trends at both national and global levels.
Filipe C. Serrano   +14 more
wiley   +1 more source

Home - About - Disclaimer - Privacy