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Registros recuperados: 6
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Characterization of cold-induced changes in the fatty acids profile of rice seedlings. Repositório Alice
SASSAKI, G.; SCHMIDT, A. B.; FERREIRA, M. E.; RANGEL, P. H. N.; PEREIRA-NETTO, A. B..
Rice, a staple food for more than one half of the world?s population, is one of the most cold-sensitive cereals. Breeding programs aimed at increasing rice production are expected to reduce cold-imposed grain losses. Several reports have demonstrated that cold induce differential effects on the fatty acids profile of membranes in chilling-sensitive and chilling-tolerant plants. In this work, we evaluated changes in fatty acid (FA) composition as a potential screening tool to evaluate chilling sensitivity of rice accessions. Cold exposure led to the preferential accumulation of the polyunsaturated linolenic and linoleic FAs and reduction of palmitic and stearic FAs, besides showing increased lignoceric acid content in roots of the variety. Similarly, roots...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Arroz; Oryza sativa; Temperatura; Frio; Ácido graxo; Rice; Cold; Polyunsaturated fatty acids.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/965025
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Economic Analysis of Improving Cold Tolerance in Rice in Australia AgEcon
Singh, Rajinder Pal; Brennan, John P.; Farrell, Tim; Williams, Robert L.; Rienke, Russell; Lewin, Laurie; Mullen, John D..
The occurrence of low night temperatures during reproductive development is one of the factors most limiting rice yields in southern Australia. Yield losses due to cold temperature are the result of incomplete pollen formation and subsequent floret sterility. Researchers have found that in 75% of years, rice farmers suffer losses between 0.5 and 2.5 t/ha. Research is being undertaken to identify overseas rice varieties, that are cold tolerant under the local weather conditions and by using those genotypes as parent material, develop cold tolerance varieties of rice. A yield simulation model was used to measure reduction in losses due to cold at different minimum threshold temperatures, while the SAMBOY Rice model was used to measure the costs and returns...
Tipo: Conference Paper or Presentation Palavras-chave: Rice; Cold; Yield loss; Breeding; Crop Production/Industries.
Ano: 2003 URL: http://purl.umn.edu/57925
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Evolução de brotação em cultivares de macieiras com variações de exigência de frio tratadas com cianamida hidrogenada ao longo do período de endodormência. Repositório Alice
PERUZZO, S.; SANTOS, H. P. dos; FIALHO, F. B.; SOUZA, D. A..
O estudo pretendeu responder as seguintes questões: 1) De modo empírico, sabe-se que as plantas precisam de um certo acúmulo de horas de frio (HF) para que o tratamento com cianamida hidrogenada (CH) seja eficaz, porém qual o somatório de frio mínimo para que esse produto tenha efeito pleno? 2) Existe diferença nesta quantidade de HF acumulada para que a CH tenha efeito quando utiliza-se genótipos contrastes de exigência de frio?
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Horas de frio; Endodormência; Cianamida hidrogenada; Macieira; Fruticultura; Maçã; Dormência; Frio; Clima; Apples; Fruit growing; Dormancy; Cold.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1001134
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Gene Expression Analysis: A Way to Study Tolerance to Abiotic Stresses in Crops Species Chilean J. Agric. Res.
Pérez-Torres,Eduardo; Paredes C,Mario; Polanco,Víctor; Becerra B,Viviana.
Regions traditionally destined to agriculture report an ever increasing exposure to cold and drought conditions. This is especially important in countries like Chile where crop management options are limited. The development of new cultivars with better yields under adverse conditions is fundamental if the ever increasing demand for food is to be matched; however, improving tolerance to abiotic stresses has proved to be a complex task. In this regard, development in plant physiology and genomics in the last 20 years has led to a deeper understanding of how plants respond to stress and mechanisms responsible for different ranges of tolerance observed in nature. This review discusses the techniques currently most in use in gene expression analysis, together...
Tipo: Journal article Palavras-chave: Cold; Drought; Crops species; Gene expression.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000200016
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Impacts of Flu/Cold Incidences and Retail Orange Juice Promotion on Orange Juice Demand AgEcon
Lee, Jonq-Ying; Brown, Mark G..
In this study, we examine the impacts of retail promotions and flu/cold incidences on the demand for orange juice using weekly Nielsen grocery orange juice sales statistics and the flu/cold incidences reported by Surveillance Data Inc. The cross-section time-series pooling technique proposed by Parks was used to estimate the demand parameters. Results show that flu/cold incidences increased the effectiveness of retail promotions on the demand for orange juice.
Tipo: Journal Article Palavras-chave: Retail promotion; Flu; Cold; Orange juice; Demand; Marketing.
Ano: 2009 URL: http://purl.umn.edu/59242
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Use of Setaria viridis (A10.1) as model plant for validation of genes for cold tolerance. Repositório Alice
SANTOS, M. de L.; SILVA, V. N. B. e.; VIEIRA, L. R.; SOUSA, C. A. F. de; SOUZA JUNIOR, M. T..
bitstream/item/173710/1/Hugo-et-al-I10.pdf
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Cold; Tolerance; Setaria; Stress; Abiotic.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1088851
Registros recuperados: 6
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