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Registros recuperados: 58
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Acetic acid application to enhance drought tolerance in soybean. Repositório Alice
ANDREATA, E. C.; COUTINHO, I. D.; MARIN, S. R. R.; BELINATO, C. F.; MOLINARI, M. D. C.; BARBOSA, D. A.; NEPOMUCENO, A. L.; COLNAGO, L. A.; MERTZ-HENNING, L. M..
Tipo: Anais e Proceedings de eventos Palavras-chave: Chemical-priming; Drought stress.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1117808
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Agrometeorology of Groundnut Open Agri
Palavras-chave: Crops; Groundnuts; Drought stress; Mycotoxins; Genotypes; Weather hazards; Agrometeorology; Intercropping; Sole cropping.
Ano: 1986 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4039
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Behavior of Jatropha curcas L. seeds under osmotic stress: germination and cell cycle activity Agronomy
Brito, Cristiane Dantas de; Loureiro, Marta Bruno; Teles, Clarissa Abreu Santosw; Schuck, Mariane Ruzza; Fernandez, Luzimar Gonzaga; Castro, Renato Delmondez de.
Jatropha curcas is an oil-rich Euphorbiaceae seed species renowned for its apparent tolerance to environmental stresses. It is considered a promising source of renewable feedstock for biodiesel production in the Brazilian semiarid region where crop establishment requires a better understanding of the mechanisms leading to proper seed and plant behavior under water restrictive conditions. This study describes physiological and cytological profiles of J. curcas seeds imbibed in water restriction conditions by means of osmotic stress or osmoconditioning. Seeds were characterized by size, weight, moisture content and dry mass, germinability, and cell cycle activation by means of tubulin and microtubule cytoskeleton accumulation. Osmoconditioning at -0.8 MPa...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.00.00.00-4; 5.01.03.06-7; 5.01.03.03-2 Jatropha sp.; Germination; Drought stress; Cell cycle Ciências Agrárias.
Ano: 2015 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19438
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BEYOND THE “LEAST LIMITING WATER RANGE”: RETHINKING SOIL PHYSICS RESEARCH IN BRAZIL Rev. Bras. Ciênc. Solo
van Lier,Quirijn de Jong; Gubiani,Paulo Ivonir.
As opposed to objective definitions in soil physics, the subjective term “soil physical quality” is increasingly found in publications in the soil physics area. A supposed indicator of soil physical quality that has been the focus of attention, especially in the Brazilian literature, is the Least Limiting Water Range (RLL), translated in Portuguese as "Intervalo Hídrico Ótimo" or IHO. In this paper the four limiting water contents that define RLLare discussed in the light of objectively determinable soil physical properties, pointing to inconsistencies in the RLLdefinition and calculation. It also discusses the interpretation of RLL as an indicator of crop productivity or soil physical quality, showing its inability to consider common phenological and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Modeling; Field capacity; Drought stress; Mechanical stress; Anoxic stress.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000400925
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Classification of soybean genotypes assessed under different water availability and at different phenological stages using leaf-based hyperspectral reflectance. Repositório Alice
CRUSIOL, L. G. T.; NANNI, M. R.; FURLANETTO, R. H.; SIBALDELLI, R. N. R.; CEZAR, E.; SUN, L.; FOLONI, J. S. S.; MERTZ-HENNING, L. M.; NEPOMUCENO, A. L.; NEUMAIER, N.; FARIAS, J. R. B..
Tipo: Artigo de periódico Palavras-chave: Glycine max (L) Merrill; Estresse hídrico; Estágios fenológicos; Assinatura espectral; Análise do componente principal; Análise discriminante linear; Refletância hiperespectral; Drought stress; Phenological stages; Spectral signature; Linear discriminant analysis; Hyperspectral reflectance; Soja; Glycine Max; Soybeans; Principal component analysis; Discriminant analysis.
Ano: 2021 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1130862
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Combining ability of maize inbred lines under drought stress condition. Repositório Alice
DURAES, F. O. M.; OLIVEIRA, A. C.; SANTOS, M. X. dos; GAMA, E. E. G.; GUIMARAES, C. T..
Suplemento. Edição dos resumos do 46º Congresso Nacional de Genética, Águas de Lindóia, SP, 2000.
Tipo: Parte de livro Palavras-chave: Estresse hidrico; Capacidade combinatoria; Maize; Drought stress; Combining ability.; Milho; Seca; Zea Mays..
Ano: 2000 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/484447
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Dehydration avoidance of Megathyrsus maximus genotypes and cultivar Quênia grown in long tubes. Repositório Alice
BRUNETTI, H. B.; SANTOS, P. M.; SANTOS, M. L. DOS; JANK, L.; SANTOS, M. F..
The development of new forage grass cultivars that avoid drought stress by root growth is important to ensure animal feeding during dry periods. We evaluated the ability of five genotypes of Megathyrsus maximus and of the cultivar M. maximus 'Quênia' (QE) to avoid dehydration.
Tipo: Anais e Proceedings de eventos Palavras-chave: Drought stress; Guineagrass; Panicum Maximum; Water stress; Root growth.
Ano: 2022 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1145402
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DREB1A allows for more water uptake in groundnut by a large modification in the root/shoot ratio under water deficit Open Agri
Vadez, V..
Palavras-chave: Transgenics; Evapotranspiration; Drought stress; Genotypes; Nutrient uptake; Transgenic plants; Transpiration (animals); Harvest index; Transcription; Transcription factors.
Ano: 2007 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3355
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Drought Research Priorities for the Dryland Tropics Open Agri
F.R..
Palavras-chave: Crops; Soil water; Transpiration (animals); Water balance; Weather hazards; Drought stress; Harvest index; Leaf area; Water potential.
Ano: 1988 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4045
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Efeitos do estresse hídrico prolongado sobre o estabelecimento de plantios jovens de pimenta longa (Piper hispidinervium C.DC) em áreas degradadas de Igarapé Açu - PA. Repositório Alice
PEREIRA, I. S.; SANTOS, E. B. dos; SILVA, E. S. A.; ROCHA NETO, O. G. da.
Tipo: Parte de livro Palavras-chave: Estresse hídrico; Piper hispidinervium; Igarapé-Açu; Pará; Brasil; Drought stress; Implantação de Cultura; Pimenta Longa; Plant establishment.
Ano: 1998 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/398906
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Effect of ecological factors on germination of horse purslane (Trianthema portulacastrum) Planta Daninha
Tanveer,A.; Mumtaz,K.; Javaid,M.M.; Chaudhry,M.N.; Balal,R.M.; Khaliq,A..
Trianthema portulacastrum is a very problematic summer crop weed and a complete crop failure has been observed because of this weed at high density. The effect of different ecological factors on germination of T. portulacastrum seeds collected in two different years (2009 and 2005) was studied in laboratory experiments. An increase in temperature from 25 to 35 ºC increased germination percentage of T. portulacastrum from 65 to 85%, after which germination started to decrease, reducing to 71.25% at 45 ºC. Trianthema portulacastrum had maximum germination with distilled water compared with different salt solutions and drought stress levels. Germination was significantly minimum at salinity and drought stress level of 250 mM and -0.8 MPa, respectively....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Temperature; Drought stress; Salt stress; Field capacity; PH; Sowing depth.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000300011
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Embolism resistance as a key mechanism to understand adaptive plant strategies Naturalis
Lens, F.; Tixier, A.; Cochard, H.; Sperry, J.S.; Jansen, S.; Herbette, S..
One adaptation of plants to cope with drought or frost stress is to develop wood that is able to withstand the formation and distribution of air bubbles (emboli) in its water conducting xylem cells under negative pressure. The ultrastructure of interconduit pits strongly affects drought-induced embolism resistance, but also mechanical properties of the xylem are involved. The first experimental evidence for a lower embolism resistance in stems of herbaceous plants compared to stems of their secondarily woody descendants further supports this mechanical-functional trade-off. An integrative approach combining (ultra)structural observations of the xylem, safetyefficiency aspects of the hydraulic pipeline, and xylem–phloem interactions will shed more light on...
Tipo: Article / Letter to the editor Palavras-chave: Embolism resistance; Adaptive plant strategies; Drought stress; Air bubbles (emboli); Xylem; 42.42.
Ano: 2013 URL: http://www.repository.naturalis.nl/record/453852
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Enhanced in vitro drought tolerance of Solanum tuberosum and Solanum commersonii plants overexpressing the ScCBF1 gene Ciencia e Investigación Agraria
Pino,María Teresa; Ávila,Andrea; Molina,Andrea; Jeknic,Zoran; Chen,Tony H.H.
Cultivated potato crops are sensitive to drought stress, reducing yield and tuber quality when the soil water potential drops to -0.3 MPa. However, drought not only affects plant growth and physiological activity, but this stress also induces biochemical and molecular changes in the cellular gene expression profile. triggering genes that play a direct role in plant protection and gene regulation. The genes involved in regulation include C-repeat Binding Factors/Dehydration responsive element binding (CBF/DREB) transcription factors, which increase cold, drought and salt tolerance in different plant species. The aim of this research was to evaluate whether the overexpression of the ScCBF1 gene from Solanum commersonii enhances drought stress tolerance in...
Tipo: Journal article Palavras-chave: CBF gene; Drought stress; In vitro; Potato; Solanum commersonii; Solanum tuberosum.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000100015
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Environmental drivers on leaf phenology of ironstone outcrops species under seasonal climate Anais da ABC (AABC)
GARCIA,LETÍCIA C.; BARROS,FERNANDA V.; LEMOS-FILHO,JOSÉ P..
ABSTRACT Banded iron formations (BIF) have a particular vegetation type and provide a good model system for testing theories related to leaf phenology, due to unique stressful environmental conditions. As a consequence of the stressful conditions of BIF environment, we hypothesize that most species would retain at least some significant canopy cover, even at the end of the dry season, independently of growth form - trees, shrubs, and sub-shrubs. Considering the strong seasonality, we also hypothesize that photoperiod and rainfall act as triggers for leaf fall and leaf flushing in these environments. The majority of the fifteen studied species had a semi-deciduous behavior and shed their leaves mainly during the dry season, with a recovery at the end of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Canga; Day length; Drought stress; Evergreen; Leaf shedding; Tropical ecosystems.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000100131
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Epigenetic enhancement and drought stress tolerance in maize: selection to anthesis-silking interval. Repositório Alice
DURAES, F. O. M.; SANTOS, M. X dos; GAMA, E. E. G.; GUIMARAES, C. T.; PAIVA, E.; OLIVEIRA, A. C..
Edição dos resumos do 46º Congresso Nacional de Genética, Águas de Lindóia, SP, 2000.
Tipo: Artigo de periódico Palavras-chave: Florescimento; Intervalo; Estresse hidrico; Maize; Drought stress; Anthesis-silking; Interval; ASE.; Milho; Seca; Zea Mays..
Ano: 2000 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/484446
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Evaluation of coffee reference genes for relative expression studies by quantitative real-time RT-PCR. Repositório Alice
CRUZ, F.; KALAOUN, S.; NOBILE, P.; COLOMBO, C.; ALMEIDA, J. D. de; BARROS, L. M. G.; PINTO, E. R. de C.; SA, M. F. G. de; VASLIN, M.; ALVES FERREIRA, M..
Tipo: Separatas Palavras-chave: Reference genes; Coffee; Drought stress; Development; Real time; PCR; QPCR; Coffea; Gene expression.
Ano: 2009 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/577876
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Expression of SOD transgene in pepper confer stress tolerance and improve shoot regeneration Electron. J. Biotechnol.
Chatzidimitriadou,Kiriaki; Nianiou-Obeidat,Irini; Madesis,Panagiotis; Perl-Treves,Rafael; Tsaftaris,Athanasios.
The objective of this work was to study the stress tolerance and regeneration capability of transgenic pepper plants carrying a sod gene, encoding a tomato chloroplast-localized Cu/Zn SOD protein. The expression of the sod gene was confirmed by enzymatic staining following polyacrylamide gel electrophoresis (PAGE), revealing a ‘novel’ band, which could represent a heterodimeric enzyme. Transgenic T1 and T2 progeny plants were exposed to different oxidative stresses including Methyl viologen (MV) and drought and found to have an increased resistance to oxidative damage. Furthermore, the SOD carrying transgenic pepper plants showed increased levels of regeneration efficiency compared to the wild type pepper plants. Pepper is a...
Tipo: Journal article Palavras-chave: Capsicum annum L.; Drought stress; MV; Regeneration; SOD.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582009000400007
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Field Screening for Drought Tolerance in Crop Plants with Emphasis on Rice Open Agri
Palavras-chave: Crops; Weather hazards; Phenotypes; Tolerance; Drought stress; Genotypes; Breeds (animals); Pigeonpeas; Heritability.
Ano: 2002 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3716
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Fisiología comparada de una línea celular clorofílica y una mutante amarilla del zacate Bouteloua gracilis (Kunth) Lag. ex Griffiths en condiciones de estrés osmótico. Colegio de Postgraduados
Jiménez Francisco, Betzaida.
Las suspensiones celulares clorofílicas de plantas superiores son una herramienta valiosa para estudiar las respuestas y señales a estrés hídrico asociadas con el cloroplasto. Debido a su importancia metabólica los cloroplastos actúan como sensores de los cambios ambientales y de las redes complejas de señales que coordinan las actividades celulares y ayudan a la célula durante el estrés. En el presente trabajo se realizó la caracterización fisiológica de dos líneas celulares en suspensión del zacate B. gracilis, que se caracterizan, una por ser altamente clorofílica y, la otra, una mutante deficiente de clorofila; se estudió el efecto de la deficiencia de clorofila en la respuesta al estrés osmótico mediante la evaluación de las relaciones hídricas,...
Palavras-chave: Estrés hídrico; ABA; Prolina; Biogénesis de cloroplasto; Biosíntesis de clorofila; Pigmentos fotosintéticos; Drought stress; Proline; Chloroplast biogenesis; Chlorophyll biosynthesis; Photosynthetic pigments; Botánica; Maestría.
Ano: 2013 URL: http://hdl.handle.net/10521/1976
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Foliar phosphorus supply and CO2 assimilation in common bean (Phaseolus vulgaris L.) under water deficit Braz. J. Plant Physiol.
Santos,Mauro G. dos; Ribeiro,Rafael V.; Teixeira,Marcelo G.; Oliveira,Ricardo F. de; Pimentel,Carlos.
Two common bean cultivars were grown in pots under greenhouse conditions. Plants were submitted to a foliar Pi spray two days before suspending irrigation, what enhanced net CO2 assimilation rate of Ouro Negro cultivar but did not change significantly the photosynthesis of Carioca cultivar under both water deficit and rehydration periods. The results revealed that a foliar Pi spray induced an up-regulation of photosynthesis in common bean under mild water deficit, with this effect being genotype-dependent.
Tipo: Info:eu-repo/semantics/other Palavras-chave: Drought stress; Ortophosphate; Photosynthesis; Water deficit.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000300007
Registros recuperados: 58
Primeira ... 123 ... Última
 

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