| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Unidades Centrais. |
|
Data corrente: |
29/09/1998 |
|
Data da última atualização: |
20/04/2021 |
|
Autoria: |
RIBEIRO, A. S.; SILVEIRA JUNIOR, P.; TERRES, A. L. S. |
|
Título: |
Épocas de semeadura em arroz irrigado. |
|
Ano de publicação: |
1983 |
|
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, v.18, n.6, p. 619-630, jun. 1983. |
|
Idioma: |
Português |
|
Notas: |
Título em inglês: Seeding time on irrigated rice. |
|
Conteúdo: |
RESUMO - Em seis experimentos de campo, semeado em outubro, novembro e dezembro de 1978 e 1979, foram estudados os efeitos da brusone (Pyricularia oryzae Cav.) e de temperatura baixas (frio) sobre a produção das cultivares de arroz (Oryza sativa L.) Bluebelle, EEA 406, IRGA 408, Dawn e Caloro. Os resultados permitiram concluir que a época de semeadura influi na produtividade do arroz e que a produção das épocas tardias (dezembro) e mais prejudicada pelos danos da brusone e do frio, simultaneamente. Determinou-se, também, que as cultivares estudadas apresentam comportamentos diversos quanto a sua sensibilidade a esses fatores, e que a semeadura em épocas precoces - outubro e novembro - oferece a cultura maiores possibilidades de escapar desses danos. A brusone foi mais danosa sobre as cultivares Caloro e EEA 406, enquanto que o frio prejudicou mais a produção de IRGA 408 e Dawn. A cultivar Bluebelle, de ciclo precoce, sofreu os efeitos de ambos os fatores de maneira mais suave e apresentou maiores chances de escape. Não foram obtidas correlações satisfatórias entre os danos da brusone e as condições meteorológicas. ABSTRACT - At six field experiments, seeded in October, November and December of 1978 and 1979, the rice blast disease (Pyricularia oryzae Cav.) and low temperature effects on the grain yield of the rice cultivars Bluebelle, EEA 406, IRGA 408, Dawn, and Caloro, were studied. The results showed that seeding time had effect on rice yield, and in the later seeding times, in December the yield was reduced simultaneously by the rice blast disease and cold. It was also determinated that the rice cultivars show differences on susceptibility to these factors, and that the early seeding, at October and November, gives the cultivation more chances for the rice crop to escape from both blast and cold damages. The rice blast disease attack was more severe on the rice cultivars Caloro and EEA 406. On the other hand, the low temperatures injured more the rice cultivars IRGA 408 and Dawn. The Bluebelle, a short growth duration variety has more chances to escape from these losses. No satisfactory correlation was obtained between the rice blast disease losses and the metheorological conditions. MenosRESUMO - Em seis experimentos de campo, semeado em outubro, novembro e dezembro de 1978 e 1979, foram estudados os efeitos da brusone (Pyricularia oryzae Cav.) e de temperatura baixas (frio) sobre a produção das cultivares de arroz (Oryza sativa L.) Bluebelle, EEA 406, IRGA 408, Dawn e Caloro. Os resultados permitiram concluir que a época de semeadura influi na produtividade do arroz e que a produção das épocas tardias (dezembro) e mais prejudicada pelos danos da brusone e do frio, simultaneamente. Determinou-se, também, que as cultivares estudadas apresentam comportamentos diversos quanto a sua sensibilidade a esses fatores, e que a semeadura em épocas precoces - outubro e novembro - oferece a cultura maiores possibilidades de escapar desses danos. A brusone foi mais danosa sobre as cultivares Caloro e EEA 406, enquanto que o frio prejudicou mais a produção de IRGA 408 e Dawn. A cultivar Bluebelle, de ciclo precoce, sofreu os efeitos de ambos os fatores de maneira mais suave e apresentou maiores chances de escape. Não foram obtidas correlações satisfatórias entre os danos da brusone e as condições meteorológicas. ABSTRACT - At six field experiments, seeded in October, November and December of 1978 and 1979, the rice blast disease (Pyricularia oryzae Cav.) and low temperature effects on the grain yield of the rice cultivars Bluebelle, EEA 406, IRGA 408, Dawn, and Caloro, were studied. The results showed that seeding time had effect on rice yield, and in the later seeding tim... Mostrar Tudo |
|
Thesagro: |
Arroz Irrigado; Brusone; Época de Semeadura; Frio; Oryza Sativa; Pyricularia Oryzae. |
|
Thesaurus Nal: |
Blast disease; Cold; Cultivars; Oryza; Pyricularia; Rice. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/222793/1/Epoca-semeadura-arroz-1983.pdf
|
|
Marc: |
LEADER 03047naa a2200301 a 4500
001 1105004
005 2021-04-20
008 1983 bl uuuu u00u1 u #d
100 1 $aRIBEIRO, A. S.
245 $aÉpocas de semeadura em arroz irrigado.
260 $c1983
500 $aTítulo em inglês: Seeding time on irrigated rice.
520 $aRESUMO - Em seis experimentos de campo, semeado em outubro, novembro e dezembro de 1978 e 1979, foram estudados os efeitos da brusone (Pyricularia oryzae Cav.) e de temperatura baixas (frio) sobre a produção das cultivares de arroz (Oryza sativa L.) Bluebelle, EEA 406, IRGA 408, Dawn e Caloro. Os resultados permitiram concluir que a época de semeadura influi na produtividade do arroz e que a produção das épocas tardias (dezembro) e mais prejudicada pelos danos da brusone e do frio, simultaneamente. Determinou-se, também, que as cultivares estudadas apresentam comportamentos diversos quanto a sua sensibilidade a esses fatores, e que a semeadura em épocas precoces - outubro e novembro - oferece a cultura maiores possibilidades de escapar desses danos. A brusone foi mais danosa sobre as cultivares Caloro e EEA 406, enquanto que o frio prejudicou mais a produção de IRGA 408 e Dawn. A cultivar Bluebelle, de ciclo precoce, sofreu os efeitos de ambos os fatores de maneira mais suave e apresentou maiores chances de escape. Não foram obtidas correlações satisfatórias entre os danos da brusone e as condições meteorológicas. ABSTRACT - At six field experiments, seeded in October, November and December of 1978 and 1979, the rice blast disease (Pyricularia oryzae Cav.) and low temperature effects on the grain yield of the rice cultivars Bluebelle, EEA 406, IRGA 408, Dawn, and Caloro, were studied. The results showed that seeding time had effect on rice yield, and in the later seeding times, in December the yield was reduced simultaneously by the rice blast disease and cold. It was also determinated that the rice cultivars show differences on susceptibility to these factors, and that the early seeding, at October and November, gives the cultivation more chances for the rice crop to escape from both blast and cold damages. The rice blast disease attack was more severe on the rice cultivars Caloro and EEA 406. On the other hand, the low temperatures injured more the rice cultivars IRGA 408 and Dawn. The Bluebelle, a short growth duration variety has more chances to escape from these losses. No satisfactory correlation was obtained between the rice blast disease losses and the metheorological conditions.
650 $aBlast disease
650 $aCold
650 $aCultivars
650 $aOryza
650 $aPyricularia
650 $aRice
650 $aArroz Irrigado
650 $aBrusone
650 $aÉpoca de Semeadura
650 $aFrio
650 $aOryza Sativa
650 $aPyricularia Oryzae
700 1 $aSILVEIRA JUNIOR, P.
700 1 $aTERRES, A. L. S.
773 $tPesquisa Agropecuária Brasileira, Brasília$gv.18, n.6, p. 619-630, jun. 1983.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
|
Data corrente: |
30/11/2020 |
|
Data da última atualização: |
30/11/2020 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 2 |
|
Autoria: |
FIGUEIRA, L. M.; ALVES, N. G.; SOUZA-FABJAN, J. M. G.; VERGANI, G. B.; OLIVEIRA, M. E. F.; LIMA, R. R. de; FONSECA, J. F. da. |
|
Afiliação: |
LUCAS MACHADO FIGUEIRA, Universidade Federal de Lavras (UFLA) - Lavras, MG, Brazil; NADJA GOMES ALVES, Universidade Federal de Lavras (UFLA) - Lavras, MG, Brazil; JOANNA MARIA GONÇALVES SOUZA-FABJAN, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil; GABRIEL BRUN VERGANI, Universidade Estadual Paulista "Júlio de Mesquita Filho" (Unesp) - Jaboticabal, SP, Brazil; MARIA EMILIA FRANCO OLIVEIRA, Universidade Estadual Paulista "Júlio de Mesquita Filho" (Unesp) - Jaboticabal, SP, Brazil; RENATO RIBEIRO DE LIMA, Universidade Federal de Lavras (UFLA) - Lavras, MG, Brazil; JEFERSON FERREIRA DA FONSECA, CNPC. |
|
Título: |
Ultrasonographic cervical evaluation: A tool to select ewes for non-surgical embryo recovery. |
|
Ano de publicação: |
2020 |
|
Fonte/Imprenta: |
Reproduction in Domestic Animals, v. 55, n. 11, p. 1638-1645, Nov. 2020. |
|
DOI: |
https://doi.org/10.1111/rda.13825 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Abstract: This study assessed the cervical ultrasonography mapping as a tool to select donor ewes for non-surgical embryo recovery (NSER). Lacaune ewes had their cervix evaluated by ultrasonography 12 hr after induced oestrus onset (Trial 1, n = 24) or 30 min before NSER (Trial 2, n = 17). Cervical rings were longitudinally evaluated and classified by their degree of misalignment on ultrasonography (DMUS) into: DMUS-1- cervix rectilinear, DMUS-2 - intermediate and DMUS-3 highly asymmetrical. For predicting cervical transposing, only DMUS-1 and DMUS-2 were considered suitable. Similar ranking was attributed to degree of misalignment on the cervical map (DMCM 1-3), established immediately before NSER, which was performed at days 6 to 7 after oestrus. In Trial 1, cervical retraction for NSER was not possible only in three ewes classified as DMUS-3 (3/14, 21.4%). No difference (p > .05) was observed in the cervical transposing rates between ewes with different DMUS (ranged from 80% to 100%). In Trial 2, DMUS-1 and DMUS-2 reached 100% of transposing, and the only DMUS-3 ewe has not been transposed. In Trial 1, the prediction performance for successful cervical transposing showed low sensitivity (45%) and no specificity due to a high incidence of false negatives (52%). However, in Trial 2, sensitivity and specificity were both 100%. The DMCM and DMUS were uncorrelated, probably due to cervical stretching required to perform NSER. In conclusion, cervical ultrasound assessment immediately before NSER was more efficient to predict the cervical transposing than at induced oestrus, allowing the classification and selection of ewes eligible for NSER. MenosAbstract: This study assessed the cervical ultrasonography mapping as a tool to select donor ewes for non-surgical embryo recovery (NSER). Lacaune ewes had their cervix evaluated by ultrasonography 12 hr after induced oestrus onset (Trial 1, n = 24) or 30 min before NSER (Trial 2, n = 17). Cervical rings were longitudinally evaluated and classified by their degree of misalignment on ultrasonography (DMUS) into: DMUS-1- cervix rectilinear, DMUS-2 - intermediate and DMUS-3 highly asymmetrical. For predicting cervical transposing, only DMUS-1 and DMUS-2 were considered suitable. Similar ranking was attributed to degree of misalignment on the cervical map (DMCM 1-3), established immediately before NSER, which was performed at days 6 to 7 after oestrus. In Trial 1, cervical retraction for NSER was not possible only in three ewes classified as DMUS-3 (3/14, 21.4%). No difference (p > .05) was observed in the cervical transposing rates between ewes with different DMUS (ranged from 80% to 100%). In Trial 2, DMUS-1 and DMUS-2 reached 100% of transposing, and the only DMUS-3 ewe has not been transposed. In Trial 1, the prediction performance for successful cervical transposing showed low sensitivity (45%) and no specificity due to a high incidence of false negatives (52%). However, in Trial 2, sensitivity and specificity were both 100%. The DMCM and DMUS were uncorrelated, probably due to cervical stretching required to perform NSER. In conclusion, cervical ultrasound assessment immed... Mostrar Tudo |
|
Palavras-Chave: |
Cervical transposing; Oestrous cycle; Ultrasound. |
|
Thesaurus NAL: |
Cervix; Embryo transfer; Estrus synchronization; Reproduction; Sheep. |
|
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
|
Marc: |
LEADER 02576naa a2200301 a 4500
001 2127230
005 2020-11-30
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1111/rda.13825$2DOI
100 1 $aFIGUEIRA, L. M.
245 $aUltrasonographic cervical evaluation$bA tool to select ewes for non-surgical embryo recovery.$h[electronic resource]
260 $c2020
520 $aAbstract: This study assessed the cervical ultrasonography mapping as a tool to select donor ewes for non-surgical embryo recovery (NSER). Lacaune ewes had their cervix evaluated by ultrasonography 12 hr after induced oestrus onset (Trial 1, n = 24) or 30 min before NSER (Trial 2, n = 17). Cervical rings were longitudinally evaluated and classified by their degree of misalignment on ultrasonography (DMUS) into: DMUS-1- cervix rectilinear, DMUS-2 - intermediate and DMUS-3 highly asymmetrical. For predicting cervical transposing, only DMUS-1 and DMUS-2 were considered suitable. Similar ranking was attributed to degree of misalignment on the cervical map (DMCM 1-3), established immediately before NSER, which was performed at days 6 to 7 after oestrus. In Trial 1, cervical retraction for NSER was not possible only in three ewes classified as DMUS-3 (3/14, 21.4%). No difference (p > .05) was observed in the cervical transposing rates between ewes with different DMUS (ranged from 80% to 100%). In Trial 2, DMUS-1 and DMUS-2 reached 100% of transposing, and the only DMUS-3 ewe has not been transposed. In Trial 1, the prediction performance for successful cervical transposing showed low sensitivity (45%) and no specificity due to a high incidence of false negatives (52%). However, in Trial 2, sensitivity and specificity were both 100%. The DMCM and DMUS were uncorrelated, probably due to cervical stretching required to perform NSER. In conclusion, cervical ultrasound assessment immediately before NSER was more efficient to predict the cervical transposing than at induced oestrus, allowing the classification and selection of ewes eligible for NSER.
650 $aCervix
650 $aEmbryo transfer
650 $aEstrus synchronization
650 $aReproduction
650 $aSheep
653 $aCervical transposing
653 $aOestrous cycle
653 $aUltrasound
700 1 $aALVES, N. G.
700 1 $aSOUZA-FABJAN, J. M. G.
700 1 $aVERGANI, G. B.
700 1 $aOLIVEIRA, M. E. F.
700 1 $aLIMA, R. R. de
700 1 $aFONSECA, J. F. da
773 $tReproduction in Domestic Animals$gv. 55, n. 11, p. 1638-1645, Nov. 2020.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
