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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
09/10/2013 |
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Data da última atualização: |
09/10/2013 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
TEIXEIRA, J. P.; TORRE NETO, A.; GHINI, R. |
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Afiliação: |
JOÃO PAULO TEIXEIRA, FAJ; ANDRE TORRE NETO, CNPDIA; RAQUEL GHINI, CNPMA. |
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Título: |
Calibração dos sensores de CO2 do ar do experimento FACE. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
In: CONGRESSO INTERINSTITUCIONAL DE INICIAÇÃO CIENTÍFICA, 7., 2013, Campinas. Anais... Campinas: ITAL, 2013. 1 CD ROM. Nº 13416. |
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Páginas: |
6 p. |
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Idioma: |
Português |
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Conteúdo: |
Resumo: O experimento FACE (Free Air Carbon-dioxide Enrichment), localizado na Embrapa Meio Ambiente (Jaguariúna, SP), tem o objetivo de estudar os impactos do aumento da concentração de CO2 da atmosfera sobre a cultura do café. Sensores comerciais de CO2, baseados na técnica IRGA (Infrared gas analyzer), estão instalados na área e são parte fundamental da instrumentação do sistema. O objetivo deste trabalho foi desenvolver um método de calibração desses sensores. Para garantir maior eficiência no processo, foi implementado um kit que possibilita a calibração de até seis sensores simultaneamente. O método se mostrou eficaz em 75% dos sensores modelo GMP222 e 100% dos sensores modelo GMP343, ambos fabricados pela empresa Vaisala. |
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Palavras-Chave: |
Cardon dioxide; CO2; Coffee; Free Air Carbon-dioxide Enrichment; IRGA; Sensor; Sensors. |
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Thesagro: |
Café; Clima; Dióxido de carbono. |
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Thesaurus Nal: |
Climate change. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/90691/1/2013AA36.pdf
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Marc: |
LEADER 01563nam a2200277 a 4500
001 1968119
005 2013-10-09
008 2013 bl uuuu u00u1 u #d
100 1 $aTEIXEIRA, J. P.
245 $aCalibração dos sensores de CO2 do ar do experimento FACE.$h[electronic resource]
260 $aIn: CONGRESSO INTERINSTITUCIONAL DE INICIAÇÃO CIENTÍFICA, 7., 2013, Campinas. Anais... Campinas: ITAL, 2013. 1 CD ROM. Nº 13416.$c2013
300 $a6 p.
520 $aResumo: O experimento FACE (Free Air Carbon-dioxide Enrichment), localizado na Embrapa Meio Ambiente (Jaguariúna, SP), tem o objetivo de estudar os impactos do aumento da concentração de CO2 da atmosfera sobre a cultura do café. Sensores comerciais de CO2, baseados na técnica IRGA (Infrared gas analyzer), estão instalados na área e são parte fundamental da instrumentação do sistema. O objetivo deste trabalho foi desenvolver um método de calibração desses sensores. Para garantir maior eficiência no processo, foi implementado um kit que possibilita a calibração de até seis sensores simultaneamente. O método se mostrou eficaz em 75% dos sensores modelo GMP222 e 100% dos sensores modelo GMP343, ambos fabricados pela empresa Vaisala.
650 $aClimate change
650 $aCafé
650 $aClima
650 $aDióxido de carbono
653 $aCardon dioxide
653 $aCO2
653 $aCoffee
653 $aFree Air Carbon-dioxide Enrichment
653 $aIRGA
653 $aSensor
653 $aSensors
700 1 $aTORRE NETO, A.
700 1 $aGHINI, R.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
25/10/2018 |
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Data da última atualização: |
24/01/2023 |
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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: |
SILVA, D. M.; SANTOS, Y. D.; BENITES, F. R. G.; TECHIO, V. H. |
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Afiliação: |
Dayanne Medrado Silva, UFLA; Yasmim Dutra Santos, UFLA; FLAVIO RODRIGO GANDOLFI BENITES, CNPGL; Vania Helena Techio, UFLA. |
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Título: |
Microsporogenesis, viability and morphology of pollen grain in accessions of Cynodon L. C. Rich. (Poaceae). |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
South African Journal of Botany, v. 118, p. 260-267, 2018. |
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Idioma: |
Inglês |
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Conteúdo: |
Plants of the genus Cynodon were considered as weed for a long period. However, this scenario has changed when it was observed that many species could be used in forage farming and for the recovery of degraded areas. Due to the high expansive potential, Cynodon spp. became an option for producers and aroused interest for breeding programs, besides requiring further studies on genetic and cytogenetic variability. Research onmeiosis in Cynodon are scarce since the inflorescences are small and the standardization of the stages of spikelet collections is difficult. The aimof the present studywas to evaluate the microsporogenesis, viability andmorphology of the pollen grains of two accessions of Cynodon dactylon var. dactylon (L.) Pers. (2n=4x=36, bermudagrass) and two accessions of Cynodon nlemfuensis var. nlemfuensis Vanderyst (2n=2x=18, stargrass). The slideswere prepared by squash technique and stained with 2% carmine propionic. For the viability analyses of pollen grains, 2% propionic carmine and Alexander's stain were used. The measurements and the morphology of the pollen grains were defined from analyses with the acetolysis technique and scanning electron microscopy. The meiosis of the four accessions/species was regular. The staining tests showed variations in the viability rate of the pollen grain between the diploid and tetraploid species, being higher among the tetraploids. The pollen grainsmeasured 21.1 and 28.8 μmon average for both species andwere classified as oblate spheroidal,monocolpates and showed no ornamentation, such as spicules and other attachments with non-roughened, micro reticulated exine. MenosPlants of the genus Cynodon were considered as weed for a long period. However, this scenario has changed when it was observed that many species could be used in forage farming and for the recovery of degraded areas. Due to the high expansive potential, Cynodon spp. became an option for producers and aroused interest for breeding programs, besides requiring further studies on genetic and cytogenetic variability. Research onmeiosis in Cynodon are scarce since the inflorescences are small and the standardization of the stages of spikelet collections is difficult. The aimof the present studywas to evaluate the microsporogenesis, viability andmorphology of the pollen grains of two accessions of Cynodon dactylon var. dactylon (L.) Pers. (2n=4x=36, bermudagrass) and two accessions of Cynodon nlemfuensis var. nlemfuensis Vanderyst (2n=2x=18, stargrass). The slideswere prepared by squash technique and stained with 2% carmine propionic. For the viability analyses of pollen grains, 2% propionic carmine and Alexander's stain were used. The measurements and the morphology of the pollen grains were defined from analyses with the acetolysis technique and scanning electron microscopy. The meiosis of the four accessions/species was regular. The staining tests showed variations in the viability rate of the pollen grain between the diploid and tetraploid species, being higher among the tetraploids. The pollen grainsmeasured 21.1 and 28.8 μmon average for both species andwere classified a... Mostrar Tudo |
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Palavras-Chave: |
Bermuda grass; Pollen grain; Star grass. |
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Thesaurus NAL: |
Forage grasses; Meiosis. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02290naa a2200217 a 4500
001 2098248
005 2023-01-24
008 2018 bl uuuu u00u1 u #d
100 1 $aSILVA, D. M.
245 $aMicrosporogenesis, viability and morphology of pollen grain in accessions of Cynodon L. C. Rich. (Poaceae).$h[electronic resource]
260 $c2018
520 $aPlants of the genus Cynodon were considered as weed for a long period. However, this scenario has changed when it was observed that many species could be used in forage farming and for the recovery of degraded areas. Due to the high expansive potential, Cynodon spp. became an option for producers and aroused interest for breeding programs, besides requiring further studies on genetic and cytogenetic variability. Research onmeiosis in Cynodon are scarce since the inflorescences are small and the standardization of the stages of spikelet collections is difficult. The aimof the present studywas to evaluate the microsporogenesis, viability andmorphology of the pollen grains of two accessions of Cynodon dactylon var. dactylon (L.) Pers. (2n=4x=36, bermudagrass) and two accessions of Cynodon nlemfuensis var. nlemfuensis Vanderyst (2n=2x=18, stargrass). The slideswere prepared by squash technique and stained with 2% carmine propionic. For the viability analyses of pollen grains, 2% propionic carmine and Alexander's stain were used. The measurements and the morphology of the pollen grains were defined from analyses with the acetolysis technique and scanning electron microscopy. The meiosis of the four accessions/species was regular. The staining tests showed variations in the viability rate of the pollen grain between the diploid and tetraploid species, being higher among the tetraploids. The pollen grainsmeasured 21.1 and 28.8 μmon average for both species andwere classified as oblate spheroidal,monocolpates and showed no ornamentation, such as spicules and other attachments with non-roughened, micro reticulated exine.
650 $aForage grasses
650 $aMeiosis
653 $aBermuda grass
653 $aPollen grain
653 $aStar grass
700 1 $aSANTOS, Y. D.
700 1 $aBENITES, F. R. G.
700 1 $aTECHIO, V. H.
773 $tSouth African Journal of Botany$gv. 118, p. 260-267, 2018.
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