Results 21 to 30 of about 8,248 (221)

Thallus hydrophobicity: A low-cost method for understanding lichen ecophysiological responses to environmental changes. [PDF]

open access: yesAppl Plant Sci
Abstract Premise Methods to evaluate lichen thalli hydrophobicity have previously been described, but only recently has hydrophobicity been shown to be an important functional trait related to water regulation dynamics that could be used to predict future climate change effects. We describe a novel protocol to measure lichen thallus hydrophobicity that
Koch NM   +3 more
europepmc   +2 more sources

Low Genetic Diversity and Complex Population Structure in Black Piranha (Serrasalmus rhombeus), a Key Amazonian Predator. [PDF]

open access: yesEcol Evol
Using a Genotyping‐by‐Sequencing approach across tributaries in the central Amazonia, we found that the black piranha (Serrasalmus rhombeus) exhibits low genetic diversity, pronounced inbreeding, and significant population structure, likely shaped by historical events rather than contemporary factors.
Thomas A   +6 more
europepmc   +2 more sources

QUALITY EVALUATION OF 'SUNBURST' CHERRIES HARVESTED AT DIFFERENT RIPENESS STAGES . [PDF]

open access: yes, 2012
The sweet cherry ‘Sunburst’ is highly appreciated by consumers due to its organoleptic traits. Regional producers tend to harvest cherries sooner in order to increase their profits.
Agulheiro-Santos, A.C.   +4 more
core   +1 more source

Increased Gibberellins and Light Levels Promotes Cell Wall Thickness and Enhance Lignin Deposition in Xylem Fibers

open access: yesFrontiers in Plant Science, 2018
Light intensity and hormones (gibberellins; GAs) alter plant growth and development. A fine regulation triggered by light and GAs induces changes in stem cell walls (CW).
Renan Falcioni   +9 more
doaj   +1 more source

Embebição de sementes de Alcantarea imperialis (Carrière) Harms em tratamentos pré-germinativos de temperatura sob duas condições de luminosidade

open access: yesVértices, 2023
O objetivo deste estudo foi investigar a ação da luz e de tratamentos térmicos pré-germinativos na embebição de sementes de Alcantarea imperialis. As sementes foram dispostas em unidades experimentais de 25 sementes sem desinfestação prévia e submetidas ...
Gustavo Viana de Freitas   +1 more
doaj   +1 more source

Lead tolerance of water hyacinth (Eichhornia crassipes Mart. - Pontederiaceae) as defined by anatomical and physiological traits

open access: yesAnais da Academia Brasileira de Ciências, 2014
This study aimed at verifying the lead tolerance of water hyacinth and at looking at consequent anatomical and physiological modifications. Water hyacinth plants were grown on nutrient solutions with five different lead concentrations: 0.00, 0.50, 1.00 ...
FABRICIO J. PEREIRA   +6 more
doaj   +1 more source

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  

Crescimento da parte aérea de cana crua e queimada Shoot growth of green and burned canes

open access: yesScientia Agricola, 1999
Este trabalho teve como objetivos: 1. comparar o crescimento de cana colhida crua, mecanizada e de cana após a queima, colhida manualmente; 2. avaliar a influência do clima sobre as duas condições de crescimento e 3.
Ivan André Alvarez   +1 more
doaj   +1 more source

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