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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
11/05/2005 |
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Data da última atualização: |
18/07/2005 |
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Autoria: |
SANTOS, C. T. dos; DALPASQUALE, V. A.; SCAPIM, C. A.; BRACCINI, A. de L. e; KRZYZANOWSKI, F. C. |
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Título: |
Milk line as an indicator of the harvesting time of three hybrid seeds of corn (Zea mays L.). |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Brazilian Archives of Biology and Technology, Curitiba, v. 48, n. 2, p.161-170, Mar. 2005. |
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Idioma: |
Inglês |
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Conteúdo: |
The experiment was carried out to evaluate the time for harvesting seeds of three hybrids of corn (Zea mays L.) at their best physiological quality and the use of the milk line as an indicator of the physiological seed maturity. Single hybrids CD 1723 and CD 5501 and double hybrid OC 705 seeds were collected for 59 days, every four days, starting 23 days after female flowering. Seed dry weight, moisture content, germination, vigour (cold and accelerated aging tests), black layer formation and seed milk line development were analysed. The harvesting time started 47 days after female flowering with high physiological quality of the seeds identified by a joint analysis of those seven characteristics of them. The milk line at stage 4 proved to be the best indicator of the time to harvest corn seeds for maximum physiological quality, because different stages of milk line development in corn seeds could be easily identified in the filed without any special equipment. |
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Thesagro: |
Época de Plantio; Milho; Semente. |
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Categoria do assunto: |
-- |
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URL: |
https://www.scielo.br/pdf/babt/v48n2/23754.pdf
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Marc: |
LEADER 01604naa a2200205 a 4500
001 1467911
005 2005-07-18
008 2005 bl --- 0-- u #d
100 1 $aSANTOS, C. T. dos
245 $aMilk line as an indicator of the harvesting time of three hybrid seeds of corn (Zea mays L.).
260 $c2005
520 $aThe experiment was carried out to evaluate the time for harvesting seeds of three hybrids of corn (Zea mays L.) at their best physiological quality and the use of the milk line as an indicator of the physiological seed maturity. Single hybrids CD 1723 and CD 5501 and double hybrid OC 705 seeds were collected for 59 days, every four days, starting 23 days after female flowering. Seed dry weight, moisture content, germination, vigour (cold and accelerated aging tests), black layer formation and seed milk line development were analysed. The harvesting time started 47 days after female flowering with high physiological quality of the seeds identified by a joint analysis of those seven characteristics of them. The milk line at stage 4 proved to be the best indicator of the time to harvest corn seeds for maximum physiological quality, because different stages of milk line development in corn seeds could be easily identified in the filed without any special equipment.
650 $aÉpoca de Plantio
650 $aMilho
650 $aSemente
700 1 $aDALPASQUALE, V. A.
700 1 $aSCAPIM, C. A.
700 1 $aBRACCINI, A. de L. e
700 1 $aKRZYZANOWSKI, F. C.
773 $tBrazilian Archives of Biology and Technology, Curitiba$gv. 48, n. 2, p.161-170, Mar. 2005.
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Registro original: |
Embrapa Soja (CNPSO) |
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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: |
10/08/2021 |
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Data da última atualização: |
10/08/2021 |
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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: |
MARCHESINI, P.; NOVATO, T. P.; CARDOSO, S. J.; PRATA, M. C. de A.; NASCIMENTO, R. M. do; KLAFKE, G.; COSTA-JÚNIOR, L. M.; MATURANO, R.; LOPES, W. D. Z.; BITTENCOURT, V. R. E. P.; MONTEIRO, C. |
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Afiliação: |
PAULA MARCHESINI, Universidade Federal Rural do Rio de Janeiro; TATIANE PINHEIRO NOVATO, Universidade Federal Rural do Rio de Janeiro; SIMONE JAQUELINE CARDOSO, Universidade Federal de Juiz de Fora; MARCIA CRISTINA DE AZEVEDO PRATA, CNPGL; RAFAEL MOREIRA DO NASCIMENTO, Universidade Federal de Juiz de Fora; GUILHERME KLAFKE, Centro de Pesquisa em Saúde Animal, Eldorado do Sul, RS; LÍVIO M. COSTA-JÚNIOR, Universidade Federal do Maranhão; RALPH MATURANO, Universidade Federal de Juiz de Fora; WELBER DANIEL ZANETI LOPES, Universidade Federal de Goiás; VÂNIA RITA ELIAS PINHEIRO BITTENCOURT, Universidade Federal Rural do Rio de Janeiro; CAIO MONTEIRO, Universidade Federal de Goiás. |
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Título: |
Acaricidal activity of (E)-cinnamaldehyde and alpha-bisabolol on populations of Rhipicephalus microplus (Acari: Ixodidae) with different resistance profiles. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Veterinary Parasitology, v. 286, 109226, 2020. |
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DOI: |
https://doi.org/10.1016/j.vetpar.2020.109226 |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to investigate the acaricidal activity of (E)-cinnamaldehyde and α-bisabolol on populations of Rhipicephalus microplus with different resistance profiles. The adult immersion test (AIT) was used to characterize the susceptibility of tick populations (50 field populations) to synthetic acaricides: deltamethrin, amitraz, and chlorfenvinphos. The larval packet test (LPT) was used to determine the LC50 values for (E)-cinnamaldehyde (populations 1?25) and α-bisabolol (populations 26?50) at the concentrations of 0.31, 0.62, 1.25, 2.0, 2.5, 5.0 and 10.0 mg/mL. The susceptible strain Porto Alegre (POA) was used as a reference for calculating the resistance ratio (RR). In the AIT, deltamethrin did not show efficacy >95 % for any of the populations, whereas amitraz and chlorfenvinphos have presented efficacy >95 % for three (6 %) and 15 (30 %) populations, respectively. In the LPT, the LC50 values of (E)-cinnamaldehyde and α-bisabolol varied from 0.23 to 2.36 mg/mL and 1.57?3.01 mg/mL, respectively. The RR50 for (E)-cinnamaldehyde showed 20 (80 %) populations with values <1.0 and no population with values>1.5. As for α-bisabolol, only two (8%) populations have presented RR50 <1.0, whereas three (12 %) populations showed incipient resistance to this sesquiterpene (RR50 between 1.5 and 2.0). The results indicate that all studied tick populations showed low susceptibility to at least one of the commercial acaricides tested. In addition, comparison between the LC50 values of (E)-cinnamaldehyde and α-bisabolol for the field populations and the susceptible strain POA suggests that there is no cross-resistance of (E)-cinnamaldehyde and α-bisabolol for the tick populations evaluated, and that the differences in the LC50 values are due to population variations. MenosThis study aimed to investigate the acaricidal activity of (E)-cinnamaldehyde and α-bisabolol on populations of Rhipicephalus microplus with different resistance profiles. The adult immersion test (AIT) was used to characterize the susceptibility of tick populations (50 field populations) to synthetic acaricides: deltamethrin, amitraz, and chlorfenvinphos. The larval packet test (LPT) was used to determine the LC50 values for (E)-cinnamaldehyde (populations 1?25) and α-bisabolol (populations 26?50) at the concentrations of 0.31, 0.62, 1.25, 2.0, 2.5, 5.0 and 10.0 mg/mL. The susceptible strain Porto Alegre (POA) was used as a reference for calculating the resistance ratio (RR). In the AIT, deltamethrin did not show efficacy >95 % for any of the populations, whereas amitraz and chlorfenvinphos have presented efficacy >95 % for three (6 %) and 15 (30 %) populations, respectively. In the LPT, the LC50 values of (E)-cinnamaldehyde and α-bisabolol varied from 0.23 to 2.36 mg/mL and 1.57?3.01 mg/mL, respectively. The RR50 for (E)-cinnamaldehyde showed 20 (80 %) populations with values <1.0 and no population with values>1.5. As for α-bisabolol, only two (8%) populations have presented RR50 <1.0, whereas three (12 %) populations showed incipient resistance to this sesquiterpene (RR50 between 1.5 and 2.0). The results indicate that all studied tick populations showed low susceptibility to at least one of the commercial acaricides tested. In addition, comparison bet... Mostrar Tudo |
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Palavras-Chave: |
Fenilpropanóide; Resistência cruzada; Sesquiterpeno. |
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Thesagro: |
Acaricida; Bovino; Carrapato. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02849naa a2200325 a 4500
001 2133390
005 2021-08-10
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.vetpar.2020.109226$2DOI
100 1 $aMARCHESINI, P.
245 $aAcaricidal activity of (E)-cinnamaldehyde and alpha-bisabolol on populations of Rhipicephalus microplus (Acari$bIxodidae) with different resistance profiles.$h[electronic resource]
260 $c2020
520 $aThis study aimed to investigate the acaricidal activity of (E)-cinnamaldehyde and α-bisabolol on populations of Rhipicephalus microplus with different resistance profiles. The adult immersion test (AIT) was used to characterize the susceptibility of tick populations (50 field populations) to synthetic acaricides: deltamethrin, amitraz, and chlorfenvinphos. The larval packet test (LPT) was used to determine the LC50 values for (E)-cinnamaldehyde (populations 1?25) and α-bisabolol (populations 26?50) at the concentrations of 0.31, 0.62, 1.25, 2.0, 2.5, 5.0 and 10.0 mg/mL. The susceptible strain Porto Alegre (POA) was used as a reference for calculating the resistance ratio (RR). In the AIT, deltamethrin did not show efficacy >95 % for any of the populations, whereas amitraz and chlorfenvinphos have presented efficacy >95 % for three (6 %) and 15 (30 %) populations, respectively. In the LPT, the LC50 values of (E)-cinnamaldehyde and α-bisabolol varied from 0.23 to 2.36 mg/mL and 1.57?3.01 mg/mL, respectively. The RR50 for (E)-cinnamaldehyde showed 20 (80 %) populations with values <1.0 and no population with values>1.5. As for α-bisabolol, only two (8%) populations have presented RR50 <1.0, whereas three (12 %) populations showed incipient resistance to this sesquiterpene (RR50 between 1.5 and 2.0). The results indicate that all studied tick populations showed low susceptibility to at least one of the commercial acaricides tested. In addition, comparison between the LC50 values of (E)-cinnamaldehyde and α-bisabolol for the field populations and the susceptible strain POA suggests that there is no cross-resistance of (E)-cinnamaldehyde and α-bisabolol for the tick populations evaluated, and that the differences in the LC50 values are due to population variations.
650 $aAcaricida
650 $aBovino
650 $aCarrapato
653 $aFenilpropanóide
653 $aResistência cruzada
653 $aSesquiterpeno
700 1 $aNOVATO, T. P.
700 1 $aCARDOSO, S. J.
700 1 $aPRATA, M. C. de A.
700 1 $aNASCIMENTO, R. M. do
700 1 $aKLAFKE, G.
700 1 $aCOSTA-JÚNIOR, L. M.
700 1 $aMATURANO, R.
700 1 $aLOPES, W. D. Z.
700 1 $aBITTENCOURT, V. R. E. P.
700 1 $aMONTEIRO, C.
773 $tVeterinary Parasitology$gv. 286, 109226, 2020.
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