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Registros recuperados: 36 | |
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Girardi,Eduardo Augusto; Cerqueira,Thales Sandoval; Cantuarias-Avilés,Tatiana Eugenia; Silva,Simone Rodrigues da; Stuchi,Eduardo Sanches. |
ABSTRACT In Brazilian regions affected by the citrus sudden death disease, sweet orange cultivation depends on the use of resistant rootstocks. Rangpur lime was mainly replaced by Swingle citrumelo and Sunki mandarin rootstocks, more drought-sensitive ones. The diversification of scion selections is also desirable aiming at the increasing demand for not from concentrate orange juice (NFC) that requires high-quality fruits. In this work, we evaluated the performance of 6 selections of Valencia (IAC, Dom João, Late Burjasot IVIA 35-2, Rhode Red SRA 360, Temprana IVIA 25 and Campbell) and Natal IAC sweet oranges grafted onto Swingle citrumelo and Sunki mandarin. The planting occurred in 2001 under rain-fed cultivation in Bebedouro, northern São Paulo state,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Citrus sinensis. C. sunki; [C. paradisi × Poncirus trifoliata]; Drought tolerance; Fruit quality; Production. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000400501 |
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Silva,Marcelo de Almeida; Jifon,John Lonfover; Santos,Claudiana Moura dos; Jadoski,Cleber Junior; Silva,Jorge Alberto Gonçalves da. |
The objective of this study was to compare the gas exchange, photosynthetic capacity and water potential of sugarcane genotypes cultivated under water deficit conditions imposed during the initial growth phase. Experiments were performed in a greenhouse using two sugarcane genotypes namely: HoCP93-776 (drought susceptible) and TCP02-4587 (drought tolerant). Sixty days after planting, two different water treatments were applied (i.e., with or without water deficit). At 0,30 and 60 days after the treatment, gas exchange variables were evaluated for their relationship with water use, intrinsic instantaneous water use efficiency and instantaneous carboxylation efficiency. The SPAD index, photosynthetic pigments, water potential and relative water content in... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Saccharum spp.; Photosynthesis; Stomatal conductance; Chlorophyll; Drought tolerance; Water potential. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000500004 |
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Okuyama,Lauro Akio; Federizzi,Luiz Carlos; Barbosa Neto,José Fernandes. |
Analyses of genotype by environment interactions were carried out for wheat genotypes grown under irrigated and non-irrigated field conditions, in two sowing dates during three years. The linear regression method was used to analyze the stability of grain yield. Genotype by environment interactions was observed for grain yield in all groups of environments. Nesser was the most productive and stable genotype in all groups of environments, followed by IAPAR 17-Caeté. In the late sowing, better yield performances were observed for the cultivars OCEPAR 7-Batuíra, IAPAR 17-Caeté and Nesser, under irrigated condition, and Nesser and IAPAR 28-Igapó, under non-irrigated condition. The results indicated that Nesser gave high grain yield with superior adaptability... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Drought tolerance; Genotype by environment interaction; Water stress. |
Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000600004 |
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Arcoverde,Gabriela B.; Rodrigues,Bruno M.; Pompelli,Marcelo F.; Santos,Mauro G.. |
Stomatal conductance (g s), transpiration (E), relative water content (RWC), superoxide dismutase activity (SOD), malondialdehyde (MDA), leaf carbohydrate soluble (LCS), free amino acids (FAA) and total protein (TP) content were measured under mild and severe drought stress in young potted Jatropha curcas L. in the greenhouse. The plants were kept for 12 days under three different water regimes, control (well hydrated), 50% irrigation control (mild stress) and 25% (severe stress), after rehydration were measured on the second and fourth day. Both mild and severe stress decreased g s and E; however, only severe stress reduced LCS, FAA and TP content and increased SOD activity (70%) and MDA content (60%) compared with the control. Moreover, under these... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiesel; Drought tolerance; MDA; Oxidative stress; ROS; Water deficit. |
Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202011000200004 |
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Martim,Sílvia A.; Santos,Mirella P.; Peçanha,Anderson L.; Pommer,Celso; Campostrini,Eliemar; Viana,Alexandre P.; Façanha,Arnoldo R.; Bressan-Smith,Ricardo. |
Winegrape productivity and quality has been related to the regulated deficit irrigation, with important implications for the plant bioenergetics. When water deficit is imposed to grapevine plants, alterations in overall photosynthesis and cell respiration are observed. The aim of this study was to assess the modulations promoted by water stress on photosynthesis and respiration in leaves of the cv. Cabernet Sauvignon (cv. CS) for better understanding the physiological responses related to its drought tolerance and quality improvement under water deficit. For this purpose, measurements of photosynthetic efficiency, leaf water potential, gas exchange and O2 consumption were carried out. Leaf water potential, photosynthesis, stomatal conductance,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vitis vinifera; Drought tolerance; Irrigation management; Respiratory chain regulation; Plant bioenergetics. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202009000200002 |
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ATALA,CRISTIAN; MUÑOZ-CAPPONI,EDGARDO; PEREIRA,GUILLERMO; NAVARRETE,EDUARDO; OSES,RÓMULO; MOLINA-MONTENEGRO,MARCO. |
In drought condition, plants increase survival chance by adjusting their functional traits and by biological associations. Mycorrhizae association and artificial watering have been shown to increase plant survival under drought, especially at early developmental stages when plants are more susceptible. In Chile, Pinus radiata is the most important forest species. It is grown mainly in Central Chile, where precipitations are predicted to drop in 40% and change in frequency in the future due to climate change. Rhizopogon luteolus is an ectomycorrhizae usually associated with Pinus species and has been found to increase drought tolerance. We addressed the effect of R. luteolus inoculation on survival and functional traits of P. radiata seedlings exposed to... |
Tipo: Journal article |
Palavras-chave: Pinus radiata; Rhizopogon luteolus; Climate change; Ectomycorrhizae; Drought tolerance. |
Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432012000200009 |
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FOLONI, J. S. S.; NEPOMUCENO, A. L.; MERTZ-HENNING, L. M.; FARIAS, J. R. B.; NEUMAIER, N.; GONCALVES, S. L.; MORAES, L. A. C.; DEBIASI, H.; FRANCHINI, J. C.; BALBINOT JUNIOR, A. A.; BINNECK, E.; MORAES, A. S.; OLIVEIRA, F. A. de; CASTRO, C. de; HENNING, F. A.; OLIVEIRA, M. A. de; CARNEIRO, G. E. de S.; PRANDO, A. M.; OLIVEIRA, A. C. B. de; PEREIRA, A. F.; OLIVEIRA, M. C. N. de. |
Tipo: Folhetos |
Palavras-chave: Soja; Seca; Resistência a Seca; Tecnologia Agrícola; Soybeans; Drought tolerance; Drought; Application technology. |
Ano: 2023 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1153140 |
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COMASTRI FILHO, J. A.; POTT, A.. |
A bovinocultura de corte, principal atividade economica da sub-regiao da Nhecolandia, do Pantanal, devido, principalmente, a problemas nutricionais, apresenta baixos indices de produtividade. A alimentacao dos bovinos e constituida de pastagens nativas, geralmente de produtividade ou valor nutritivo baixos e de baixa disponiblidade nos meses de cheia. Face a esta situacao, o CPA-Pantanal, entre 1980 e 1985, realizou um experimento de introducao e avaliacao da forrageira em area de "cordilheira" desmatada com o objetivo de identificar gramineas e leguminosas adaptaveis as suas condicoes ecologicas. As forrageiras (43 gramineas e 123 leguminosas) foram plantadas em parcelas de 1,5 x 3,0 m. Foram utilizadas duas parcelas, por local, para cada especie, uma com... |
Tipo: Folhetos |
Palavras-chave: Planta graminea forrageira; Cordilheira; Resistencia a pragas; Resistencia a doencas; Tolerancia a seca; Plant; Grass; Pasture; Gramínea; Leguminosa; Pastagem; Produção; Pantanal; Drought tolerance; Forage; Disease resistance; Legumes; Pest resistance. |
Ano: 1996 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/789742 |
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GUIMARÃES FILHO, C.; LOPES, P. R. C.; SILVA, P. C. G. da. |
Em função da profunda diversidade de condições agroecológicas e sócioeconômicas que caracteriza a região semi-árida e da extrema complexidade que envolve a natureza dos fatores responsáveis pela condição de pobreza das comunidades que nela habitam, a concepção de um programa de convivência com a seca requer, antes de tudo, uma visão abrangente na definição do caminho a ser seguido. A sua execução, portanto, exigirá uma ampla ação cooperativa transdisciplinar e multiinstitucional. A base para o desenvolvimento econômico e social do Semi-Árido e, por conseguinte, o conviver com seca, não deve se limitar ao desenvolvimento da atividade agrícola. Este deve estar associado ao crescimento das atividades econômicas rurais (agrícolas e não agrícolas) que se... |
Tipo: Folhetos |
Palavras-chave: Convivência com a seca; Semiárido; Desenvolvimento local; Espaço agronômico; Produção local; Seca; Resistência a Seca; Alimentação Na Seca; Recurso Natural; Desenvolvimento Sustentável; Projeto de Desenvolvimento; Desenvolvimento Socio-Econômico; Social environment; Rural development; Rural economics; Rural policy; Drought; Drought tolerance. |
Ano: 2003 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1093481 |
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Registros recuperados: 36 | |
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