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6. | | VERÍSSIMO, C. J.; OLIVEIRA, S. M. de; SPÓSITO FILHA, E. Eficácia de alguns anti-helmínticos em uma ovinocultura no estado de São Paulo, Brasil. In: CONGRESSO BRASILEIRO DE PARASITOLOGIA VETERINÁRIA, 12.; SEMINÁRIO DE PARASITOSES NA CLÍNICA DE PEQUENOS ANIMAIS, 1.; SEMINÁRIO DE COCCÍDIOS E COCCIDIOSES, 1; SEMINÁRIO DE MANEJO INTEGRADO DA RESISTÊNCIA, 1.; CURSO DE GEOPROCESSAMENTO E SEU USO EM ESTUDOS EPIDEMIOLÓGICOS, 2002, Rio de Janeiro. Anais... Rio de Janeiro: UFRRJ: Colégio Brasileiro de Parasitologia Veterinária, 2002. 1 CD-ROM. Biblioteca(s): Embrapa Caprinos e Ovinos. |
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8. | | SOUZA, M. F. M. de; OLIVEIRA, S. M. de; STRALIOTTO, R. Competitividade de diferentes espécies de rizóbio para nodulação de feijoeiro comum em solo com alta população de rizóbio. In: CONGRESSO DE PESQUISA, 2., JORNADA DE INICIAÇÃO CIENTÍFICAS DA UFRural/RJ, 14., 2004, Seropédica, RJ. Anais... Seropédica: Universidade Federal Rural do Rio de Janeiro, 2004. v. 14. p. 294-208. CD ROM. Área de Agronomia. JIC 348.pdf. Biblioteca(s): Embrapa Agrobiologia. |
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13. | | FENERICH, F. L.; OLIVEIRA, S. M. de; RODRIGUES, F. M.; VIANNA, W. de O.; CHIBA, S. Correlacao entre a contagem de ovos de helmintos gastrintestinais por grama de fezes de bovinos e a carga parasitaria, na regiao de Campinas, SP. Pesquisa Agropecuaria Brasileira, Brasilia, v.22, n.7, p.741-746, jul.1987. Biblioteca(s): Embrapa Unidades Centrais. |
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14. | | FENERICH, F. L.; OLIVEIRA, S. M. de; VIANNA, W. de O.; RODRIGUES, F. M. Estudos epizootiologicos de nematoides gastrintestinais parasitas de bovinos na regiao de Campinas, estado de Sao Paulo, Brasil. Arquivos do Instituto Biologico, Sao Paulo, v.52, n.1/4, p.59-66, jan./dez. 1985. Biblioteca(s): Embrapa Pantanal. |
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17. | | FENERICH, F. L.; OLIVEIRA, S. M. de; VIANNA, W. de O.; RODRIGUES, F. M. Variacao estacional da contagem de ovos de nematodeos gastrintestinais: por grama de fezes de bovinos na regiao de Campinas, SP, ocorrencia dos generos e sua prevalencia. Pesquisa Agropecuaria Brasileira, Brasilia, v.22, n.6, p.647-652, jun.1987. Biblioteca(s): Embrapa Unidades Centrais. |
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18. | | FENERICH, F. L.; OLIVEIRA, S. M. de; RODRIGUES, F. M.; VIANNA, W. de O. Variação Estacional das Populações de Larvas de Nematódeos Gastrintestinais de Bovinos na Região de Campinas, SP. Pesquisa Agropecuária Brasileira, Brasília, v.22, n.5, p.505-511, maio 1987. Biblioteca(s): Embrapa Unidades Centrais. |
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20. | | OLIVEIRA, S. M. de; BARBOSA, V. M.; CAMPOS, M. de; SOUZA, T. P. O. de; ASPIAZÚ, I.; CARVALHO, A. de. Produtividade de grãos de linhagens-elite de feijão branco no norte de Minas Gerais:ciclo de avaliação 2018-2019. In: CONGRESSO NACIONAL DE PESQUISA DE FEIJÃO, 13., 2021, Goiânia. Conectividade tecnológica, intensificação sustentável: resumos. Brasília, DF: Embrapa; Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2021. p. 91. Evento online. Biblioteca(s): Embrapa Arroz e Feijão. |
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Registro Completo
Biblioteca(s): |
Embrapa Meio-Norte; Embrapa Milho e Sorgo. |
Data corrente: |
03/11/2021 |
Data da última atualização: |
04/11/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
SOUZA, A. A. de; CARVALHO, A. J. de; BASTOS, E. A.; CARDOSO, M. J.; JÚLIO, M. P. M.; BATISTA, P. S. C.; JÚLIO, B. H. M.; CAMPOLINA, C. V.; PORTUGAL, A. F.; MENEZES, C. B. de; OLIVEIRA, S. M. de. |
Afiliação: |
ANDREY ANTUNES DE SOUZA, Universidade Estadual de Montes Claros; ABNER JOSÉ DE CARVALHO, Universidade Estadual de Montes Claros; EDSON ALVES BASTOS, Universidade Federal de São João del-Rei; MILTON JOSE CARDOSO, CPAMN; MARCOS PAULO MINGOTE JÚLIO, Universidade Federal de São João del-Rei; PAULO SÉRGIO CARDOSO BATISTA, Universidade Estadual de Montes Claros; BRUNO HENRIQUE MINGOTE JULIO, Universidade Federal de São João del-Rei; CARMELA VAZ CAMPOLINA, Universidade Federal de São João del-Rei; ARLEY FIGUEIREDO PORTUGAL, CNPMS; CICERO BESERRA DE MENEZES, CNPMS; SIMÔNICA MARIA DE OLIVEIRA, Universidade Estadual de Montes Claros. |
Título: |
Grain sorghum under pre- and post-flowering drought stress in a semiarid environment. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Australian Journal of Crop Science, v. 15, n. 8, p. 1139-1145, 2021. |
Idioma: |
Inglês |
Conteúdo: |
Sorghum is one of the most drought-tolerant cereals. However, strong water stress, especially during the reproductive phase, causes
significant grain yield reduction. Drought events are common in second crops planted after soybean harvest in Brazil. The objective of the present study was to assess grain sorghum hybrids grown under pre- and post-flowering drought stress. Twenty-five hybrids were subjected to two water stress environments (pre- and post-flowering) and one environment with non-water stress. The experimental design was a split plot based on a randomized complete block with three replicates. Water stress pre-flowering reduced plant height, accelerated flowering, and increased panicle index compared with water stress post-flowering. Both pre- and postflowering stress reduced yield, by 45% and 48%, respectively. Grain mass was greatly affected by stress occurring post-flowering but not by that occurring pre-flowering. Therefore, the reduction in yield caused by pre-flowering stress is due more to the reduction of grain number in the panicle, whereas the reduction when stress occurs post-flowering is due more to reduction in grain size. The plant chlorophyll index decreased when stress occurred pre-flowering and reverted after irrigation had resumed, demonstrating recovery in the photosynthetic capacity of the sorghum plant. With post-flowering stress, the chlorophyll index decreased significantly 30 days after the stress, affecting grain filling, with consequent yield loss. MenosSorghum is one of the most drought-tolerant cereals. However, strong water stress, especially during the reproductive phase, causes
significant grain yield reduction. Drought events are common in second crops planted after soybean harvest in Brazil. The objective of the present study was to assess grain sorghum hybrids grown under pre- and post-flowering drought stress. Twenty-five hybrids were subjected to two water stress environments (pre- and post-flowering) and one environment with non-water stress. The experimental design was a split plot based on a randomized complete block with three replicates. Water stress pre-flowering reduced plant height, accelerated flowering, and increased panicle index compared with water stress post-flowering. Both pre- and postflowering stress reduced yield, by 45% and 48%, respectively. Grain mass was greatly affected by stress occurring post-flowering but not by that occurring pre-flowering. Therefore, the reduction in yield caused by pre-flowering stress is due more to the reduction of grain number in the panicle, whereas the reduction when stress occurs post-flowering is due more to reduction in grain size. The plant chlorophyll index decreased when stress occurred pre-flowering and reverted after irrigation had resumed, demonstrating recovery in the photosynthetic capacity of the sorghum plant. With post-flowering stress, the chlorophyll index decreased significantly 30 days after the stress, affecting grain filling, with consequent yi... Mostrar Tudo |
Palavras-Chave: |
Chlorophyll index; Estresse abiótico; Estresse hídrico; Índice de clorofila; Semiárido. |
Thesagro: |
Sorghum Bicolor; Sorgo Granífero. |
Thesaurus NAL: |
Abiotic stress; Water stress. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/227387/1/Grain-sorghum-under.pdf
|
Marc: |
LEADER 02532naa a2200349 a 4500 001 2135765 005 2021-11-04 008 2021 bl uuuu u00u1 u #d 100 1 $aSOUZA, A. A. de 245 $aGrain sorghum under pre- and post-flowering drought stress in a semiarid environment.$h[electronic resource] 260 $c2021 520 $aSorghum is one of the most drought-tolerant cereals. However, strong water stress, especially during the reproductive phase, causes significant grain yield reduction. Drought events are common in second crops planted after soybean harvest in Brazil. The objective of the present study was to assess grain sorghum hybrids grown under pre- and post-flowering drought stress. Twenty-five hybrids were subjected to two water stress environments (pre- and post-flowering) and one environment with non-water stress. The experimental design was a split plot based on a randomized complete block with three replicates. Water stress pre-flowering reduced plant height, accelerated flowering, and increased panicle index compared with water stress post-flowering. Both pre- and postflowering stress reduced yield, by 45% and 48%, respectively. Grain mass was greatly affected by stress occurring post-flowering but not by that occurring pre-flowering. Therefore, the reduction in yield caused by pre-flowering stress is due more to the reduction of grain number in the panicle, whereas the reduction when stress occurs post-flowering is due more to reduction in grain size. The plant chlorophyll index decreased when stress occurred pre-flowering and reverted after irrigation had resumed, demonstrating recovery in the photosynthetic capacity of the sorghum plant. With post-flowering stress, the chlorophyll index decreased significantly 30 days after the stress, affecting grain filling, with consequent yield loss. 650 $aAbiotic stress 650 $aWater stress 650 $aSorghum Bicolor 650 $aSorgo Granífero 653 $aChlorophyll index 653 $aEstresse abiótico 653 $aEstresse hídrico 653 $aÍndice de clorofila 653 $aSemiárido 700 1 $aCARVALHO, A. J. de 700 1 $aBASTOS, E. A. 700 1 $aCARDOSO, M. J. 700 1 $aJÚLIO, M. P. M. 700 1 $aBATISTA, P. S. C. 700 1 $aJÚLIO, B. H. M. 700 1 $aCAMPOLINA, C. V. 700 1 $aPORTUGAL, A. F. 700 1 $aMENEZES, C. B. de 700 1 $aOLIVEIRA, S. M. de 773 $tAustralian Journal of Crop Science$gv. 15, n. 8, p. 1139-1145, 2021.
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