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Registro Completo |
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Biblioteca(s): |
Embrapa Agropecuária Oeste; Embrapa Arroz e Feijão; Embrapa Cerrados; Embrapa Soja; Embrapa Unidades Centrais. |
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Data corrente: |
28/10/2004 |
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Data da última atualização: |
28/10/2009 |
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Autoria: |
SILVA, E. M. da; AZEVEDO, J. A. de; LIMA, J. E. F. W. |
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Título: |
Modelo matemático para avaliação de desempenho de sistemas de irrigação. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Planaltina, DF: Embrapa Cerrados, 2002. |
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Páginas: |
56 p. |
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Série: |
(Embrapa Cerrados. Documentos, 64). |
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Idioma: |
Português |
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Conteúdo: |
The irrigation performance of any irrigation systems is highly facilitated when using a fitted model to represent the measured data. Several statistical distribution models, such as uniform, normal, lognormal, specialized power, beta, and gamma, have been used to fit applied water from irrigation, as na aid to evaluate the irrigation performance. However, the goodness of fitting the model to the observed values is very important to warrant reliable results. The purposed model resembles a power function and has desirable flexibilities for adjusting data. It uses four adjusting parameters, conferring to the model a great deal of power to adjust a variety of possible shapes of normally found distribution profiles from water irrigation applications. Its adjusting parameters can be easlily estimated using the "Solver" routine from Microsoft Excel. The new mathematical model is used to represent the applied water to derive the formulations needed to calculate all the necessary parameters for compute uniformities and efficiency measures. Additionally, it is purposed and irrigation factor to adjust a given crop water depht so that the resulting average applied water will match a established goal, defined in terms of the desired amount of fully irrigated area. |
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Palavras-Chave: |
Avaliação; Avaliação de desempenho; Evaluation; Irrigaion systems. |
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Thesagro: |
Distribuição de Água; Irrigação; Modelo Matemático; Performance; Sistema de Irrigação. |
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Thesaurus Nal: |
irrigation; irrigation systems; mathematical models; water supply. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPAC-2009/25016/1/doc_64.pdf
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Marc: |
LEADER 02161nam a2200313 a 4500
001 1568027
005 2009-10-28
008 2002 bl uuuu 00u1 u #d
100 1 $aSILVA, E. M. da
245 $aModelo matemático para avaliação de desempenho de sistemas de irrigação.
260 $aPlanaltina, DF: Embrapa Cerrados$c2002
300 $a56 p.
490 $a(Embrapa Cerrados. Documentos, 64).
520 $aThe irrigation performance of any irrigation systems is highly facilitated when using a fitted model to represent the measured data. Several statistical distribution models, such as uniform, normal, lognormal, specialized power, beta, and gamma, have been used to fit applied water from irrigation, as na aid to evaluate the irrigation performance. However, the goodness of fitting the model to the observed values is very important to warrant reliable results. The purposed model resembles a power function and has desirable flexibilities for adjusting data. It uses four adjusting parameters, conferring to the model a great deal of power to adjust a variety of possible shapes of normally found distribution profiles from water irrigation applications. Its adjusting parameters can be easlily estimated using the "Solver" routine from Microsoft Excel. The new mathematical model is used to represent the applied water to derive the formulations needed to calculate all the necessary parameters for compute uniformities and efficiency measures. Additionally, it is purposed and irrigation factor to adjust a given crop water depht so that the resulting average applied water will match a established goal, defined in terms of the desired amount of fully irrigated area.
650 $airrigation
650 $airrigation systems
650 $amathematical models
650 $awater supply
650 $aDistribuição de Água
650 $aIrrigação
650 $aModelo Matemático
650 $aPerformance
650 $aSistema de Irrigação
653 $aAvaliação
653 $aAvaliação de desempenho
653 $aEvaluation
653 $aIrrigaion systems
700 1 $aAZEVEDO, J. A. de
700 1 $aLIMA, J. E. F. W.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
12/11/2019 |
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Data da última atualização: |
12/11/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SANTOS, F. C. dos; ROSA, S. D. V. F. da; COELHO, S. V. B.; CLEMENTE, A. C. S.; FANTAZZINI, T. B.; PEREIRA, C. C.; CAIXETA, F.; FÁVARIS, N. A. B.; BAÚTE, J. L. |
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Afiliação: |
Hehagro Pesquisa; STTELA DELLYZETE VEIGA F DA ROSA, CNPCa; Universidade Federal de Lavras - UFLA/Laboratório Central de Sementes/DAG; Grupo Fertilágua; Universidade Federal de Lavras - UFLA/Laboratório Central de Sementes/DAG; Universidade Federal de Lavras - UFLA/Laboratório Central de Sementes/DAG; Universidade Federal de Lavras - UFLA/Laboratório Central de Sementes/DAG; Universidade Federal de Lavras - UFLA/Laboratório Central de Sementes/DAG; Universidade Federal de Lavras - UFLA/Laboratório Central de Sementes/DAG. |
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Título: |
GA3 and ABI3 gene expression in coffee seeds during maturation. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Genetics and Molecular Research, v. 18, n. 3, 2019 |
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Idioma: |
Inglês |
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Conteúdo: |
During maturation in seeds, metabolic processes dependent on gene expression are controlled by hormones, including abscisic acid and gibberellin. These hormones determine dormancy or the capacity for germination in seeds and may have different expression levels in the endosperm and embryo of coffee seeds. We quantified gene expression in the biosynthetic pathway of gibberellin and abscisic acid in different parts of Coffea arabica L. seeds in pre and post physiological maturity, in order to better understand the germination mechanisms of this species. Coffee fruits were harvested at green, yellowish-green, cherry, over-ripe and dry stages. For studies of gene expression, intact seeds were used in addition to endosperm and isolated embryos. The RNA from different tissues was extracted and treated with DNAse to synthesize cDNA. Transition levels of CaGA3 (gibberellin) and CaABI3 (abscisic acid) genes were quantified with qRT-PCR, using specific primers for coffee. Intact seeds at each phenological stage were submitted to germination tests, to evaluate the physiological quality of the seeds. Seed harvested at green and dry stages showed lower hysiological quality when compared to the other maturation stages, and germination at the green stage was close to zero. Greatest expression of CaGA3 and CaABI3 occurs in the endosperm of coffee seeds in cherry and over-ripe stages, with better physiological performance. There are differences in CaABI3 and CaGA3 gene expression in embryos and endosperm of the coffee seeds. MenosDuring maturation in seeds, metabolic processes dependent on gene expression are controlled by hormones, including abscisic acid and gibberellin. These hormones determine dormancy or the capacity for germination in seeds and may have different expression levels in the endosperm and embryo of coffee seeds. We quantified gene expression in the biosynthetic pathway of gibberellin and abscisic acid in different parts of Coffea arabica L. seeds in pre and post physiological maturity, in order to better understand the germination mechanisms of this species. Coffee fruits were harvested at green, yellowish-green, cherry, over-ripe and dry stages. For studies of gene expression, intact seeds were used in addition to endosperm and isolated embryos. The RNA from different tissues was extracted and treated with DNAse to synthesize cDNA. Transition levels of CaGA3 (gibberellin) and CaABI3 (abscisic acid) genes were quantified with qRT-PCR, using specific primers for coffee. Intact seeds at each phenological stage were submitted to germination tests, to evaluate the physiological quality of the seeds. Seed harvested at green and dry stages showed lower hysiological quality when compared to the other maturation stages, and germination at the green stage was close to zero. Greatest expression of CaGA3 and CaABI3 occurs in the endosperm of coffee seeds in cherry and over-ripe stages, with better physiological performance. There are differences in CaABI3 and CaGA3 gene expression in embryos ... Mostrar Tudo |
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Palavras-Chave: |
QRT-PCR. |
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Thesagro: |
Coffea Arábica. |
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Thesaurus NAL: |
Abscisic acid; Gibberellic acid. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/204559/1/Ga3-and-ABI3-gene-expression.pdf
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Marc: |
LEADER 02279naa a2200265 a 4500
001 2114204
005 2019-11-12
008 2019 bl uuuu u00u1 u #d
100 1 $aSANTOS, F. C. dos
245 $aGA3 and ABI3 gene expression in coffee seeds during maturation.$h[electronic resource]
260 $c2019
520 $aDuring maturation in seeds, metabolic processes dependent on gene expression are controlled by hormones, including abscisic acid and gibberellin. These hormones determine dormancy or the capacity for germination in seeds and may have different expression levels in the endosperm and embryo of coffee seeds. We quantified gene expression in the biosynthetic pathway of gibberellin and abscisic acid in different parts of Coffea arabica L. seeds in pre and post physiological maturity, in order to better understand the germination mechanisms of this species. Coffee fruits were harvested at green, yellowish-green, cherry, over-ripe and dry stages. For studies of gene expression, intact seeds were used in addition to endosperm and isolated embryos. The RNA from different tissues was extracted and treated with DNAse to synthesize cDNA. Transition levels of CaGA3 (gibberellin) and CaABI3 (abscisic acid) genes were quantified with qRT-PCR, using specific primers for coffee. Intact seeds at each phenological stage were submitted to germination tests, to evaluate the physiological quality of the seeds. Seed harvested at green and dry stages showed lower hysiological quality when compared to the other maturation stages, and germination at the green stage was close to zero. Greatest expression of CaGA3 and CaABI3 occurs in the endosperm of coffee seeds in cherry and over-ripe stages, with better physiological performance. There are differences in CaABI3 and CaGA3 gene expression in embryos and endosperm of the coffee seeds.
650 $aAbscisic acid
650 $aGibberellic acid
650 $aCoffea Arábica
653 $aQRT-PCR
700 1 $aROSA, S. D. V. F. da
700 1 $aCOELHO, S. V. B.
700 1 $aCLEMENTE, A. C. S.
700 1 $aFANTAZZINI, T. B.
700 1 $aPEREIRA, C. C.
700 1 $aCAIXETA, F.
700 1 $aFÁVARIS, N. A. B.
700 1 $aBAÚTE, J. L.
773 $tGenetics and Molecular Research$gv. 18, n. 3, 2019
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Registro original: |
Embrapa Café (CNPCa) |
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