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| Registros recuperados: 26 | |
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| Zonetti,P. da Costa; Suzuki,L. Sayuri; Bonini,E. Aparecida; Ferrarese,M. L. Lucio; Ferrarese-Filho,Osvaldo. |
| Glyphosate resistant transgenic soybean [Glycine max (L.) Mettill] expresses a glyphosate insensitive EPSPS (5-enolpyruvylshikimate-3-phosphate synthase). This enzyme is involved in important secondary metabolism pathways, including lignin biosynthesis. Thus, differences in lignin content and growth between susceptible (OC14) and glyphosate-resistant soybean may be observed. The objective of this study was to evaluate differences between growth and lignin content of roots in transgenic and OC14 soybean cultivated at high temperatures. Seeds from the OC14 soybean and its transgenic cultivar, CD213RR, were germinated at 25, 27.5, 30 and 32.5 °C. After 3 d, seedlings were cultivated in Hoagland half-strength nutrient solution during 12 h photoperiods and at... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glyphosate; Abiotic stress; Glycine max; Plants; Climatic changes. |
| Ano: 2012 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952012000600003 |
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| MARIA,TATIANA F.; VANAVERBEKE,JAN; VANREUSEL,ANN; ESTEVES,ANDRÉ M.. |
| ABSTRACT In this review, we summarize existing knowledge of the ecology of sandy-beach nematodes, in relation to spatial distribution, food webs, pollution and climate change. We attempt to discuss spatial scale patterns (macro-, meso- and microscale) according to their degree of importance in structuring sandy-beach nematode assemblages. This review will provide a substantial background on current knowledge of sandy-beach nematodes, and can be used as a starting point to delineate further investigations in this field. Over decades, sandy beaches have been the scene of studies focusing on community and population ecology, both related to morphodynamic models. The combination of physical factors (e.g. grain size, tidal exposure) and biological interactions... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiversity; Benthos; Distribution patterns; Food webs; Climatic changes. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000501635 |
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| Silva,João B. L. da; Ferreira,Paulo A.; Justino,Flávio; Pires,Luanna C.; Toledo,Amanda S.. |
| This study aims to evaluate the leaf concentration of nitrogen and phosphorus correlated to the production of photoassimilates in beans plants (Phaseolus vulgaris L.) under high [CO2] and drought stress. The experiment was conducted in Viçosa (Brazil), during the period from April to July 2009, by using open-top chambers equipped with CO2 injection system. The drought stress was applied, through the irrigation suspension, during the period from flowering to maturation. The experimental design was randomized blocks in split-plot scheme with four replication, where the plots with plants grown in [CO2] of 700 mg L-1 and [CO2] environment of 380 mg L-1 and the subplots with plants with and without drought stress. The results were submitted to ANOVA and Tukey... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beans; Mineral nutrition; Photosynthesis; Climatic changes. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000500012 |
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| Barros,Michel J.F.; Silva-Arias,Gustavo A.; Segatto,Ana Lúcia Anversa; Reck-Kortmann,Maikel; Fregonezi,Jeferson N.; Diniz-Filho,José Alexandre F.; Freitas,Loreta B.. |
| Abstract Phylogenetic niche conservatism can be investigated at multiple scales on an explicit geographical context. Haplotype-based comparative analyses of lineages occupying the same region, and thus subjected to similar environmental factors, allow decoupling shared evolutionary and ecological patterns, as well as multiple dimensions of adaptive diversification. Here we aimed to assess the role of environmental drivers on diversification of subtropical grassland, based on haplotypic diversity of two plant genera. We sampled two closely related and co-distributed grassland plant genera, Petunia and Calibrachoa, across their entire distribution area. Eigenvectors extracted from pairwise distances based on chloroplast DNA haplotypes were used to fit... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Altitude; Climatic changes; Molecular diversification; Phylogenetic niche conservatism. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400602 |
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| Desde há muito, a pecuária tem importante papel ambiental, econômico e social no Brasil. Entretanto, as mudanças climáticas globais, verificadas em escala crescente nos tempos atuais, e a necessidade de produção de energia a partir de fontes alternativas representam novos desafios às cadeias produtivas de carne e de leite nesse país. A pressão ambientalista pela criação de áreas de reserva legal e a expansão da agricultura indicam que continuará havendo redução das áreas de pastagens em algumas regiões, forçando seu deslocamento para áreas marginais, onde poderão ocorrer limitações de solo e clima à produção. |
| Tipo: Folhetos |
Palavras-chave: Cenário; Brasil; Climatic changes; Pasture improvement; Agricultura; Clima; Pastagem; Agriculture. |
| Ano: 2014 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/988289 |
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| Ibe, A.C.. |
| In the recent past, climatic changes and variations have occurred in Nigeria with resulting adverse socio-economic impact. From these experiences, it is inferred that the expected change in global climate will have far reaching disastrous consequences for Nigeria if appropriate anticipatory technical and policy Measure are not taken. More recent results from various models based on an eventual warming from a doubling of greenhouse gases of between 1.5 and 5oC by the end of the 21st century predict an acceleration of the eustatic rise in sea level from 1.2-1.5mm/yr. over the last hundred year s to 4 – 6mm/yr. although previous estimates were much higher [e.g.56–3.68m by the end of the 21 century] on the low lying Coastal zone of Nigeria, which is rich in... |
| Tipo: Report |
Palavras-chave: Coastal zone management; Climatic changes. |
| Ano: 1990 |
URL: http://hdl.handle.net/1834/2406 |
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| Hernández González, M.; Marzo, O.; Acanda, A.. |
| El presente trabajo tuvo como objetivo la determinación de la tendencia lineal del nivel medio del mar en cinco localidades del archipiélago cubano a partir de mediciones directas. La tasa lineal anual de ascenso del nivel medio del mar en el archipiélago cubano obtenida a partir de los registros mareográficos de mayor longitud, fluctuó entre 0,214 cm/año en Siboney y 0,005 cm/año en Casilda. El incremento lineal del nivel medio del mar fluctuó entre 0 (Casilda) y 8,56 cm (Siboney) en las localidades y períodos de tiempo analizados. La tasa de ascenso y el incremento del nivel medio del mar varían notablemente entre las diferentes localidades analizadas, lo cual puede estar relacionado con la variabilidad de los procesos oceanográficos de las aguas... |
| Tipo: Journal Contribution |
Palavras-chave: Mean sea level; Climatic changes. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/3666 |
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| Registros recuperados: 26 | |
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