| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Rondônia; Embrapa Soja; Embrapa Trigo. |
|
Data corrente: |
31/08/1994 |
|
Data da última atualização: |
18/09/2007 |
|
Autoria: |
POPINIGIS, F. |
|
Título: |
Immediate effects of mechanical injury on soybean (Glycine max (L.) Merrill) seed. |
|
Ano de publicação: |
1972 |
|
Fonte/Imprenta: |
[Mississippi State]: Mississippi State University, 1972. |
|
Páginas: |
75p. |
|
Idioma: |
Inglês |
|
Notas: |
M.Sc. Thesis. |
|
Conteúdo: |
A study was conducted to determine the immediate effects of mechanical damage to soybean seed as influenced by a combine harvester applying different levels of threshing effort on pods and seed at different levels of moisture content. Four rows were harvested at a time, and the yield was 34 bushels per acre. A rasp bar cylinder type harvesting combine was used to harvest the seed at 16.85, 13.05 and 1.65% moisture content, applying Threshing Indices of 70, 87, 108 and 130. Visible effects of damage, evaluated as percentage of split seed, cracked coated seed, visibly uncracked seed and seed size, revealed that the interaction of seed moisture and Threshing Index was of significant importance in determining the degree of injury to seed at harvesting. For any level of one of these two factors, the extent of injury was dependent upon the level of the other factor, except for cracking of the seed coat, for which the interaction failed to be significant. Decreased levels of seed moisture content and increased cracking of seed coats, and a decrease in the proportion of visibly uncracked seed. Combine harvested seed tended to be smaller than hand harvested. Physiological responses of the combine harvested seed were evaluated by the standard germination test, accelerated aging test, storage under adverse conditions, and soil emergence. Seed harvested at 16.85% moisture produced lower germination percentages and lower vigor ratings than did seed harvested at 13.05 and 11.65% moisture. Increased Threshing Index caused a decrease ... MenosA study was conducted to determine the immediate effects of mechanical damage to soybean seed as influenced by a combine harvester applying different levels of threshing effort on pods and seed at different levels of moisture content. Four rows were harvested at a time, and the yield was 34 bushels per acre. A rasp bar cylinder type harvesting combine was used to harvest the seed at 16.85, 13.05 and 1.65% moisture content, applying Threshing Indices of 70, 87, 108 and 130. Visible effects of damage, evaluated as percentage of split seed, cracked coated seed, visibly uncracked seed and seed size, revealed that the interaction of seed moisture and Threshing Index was of significant importance in determining the degree of injury to seed at harvesting. For any level of one of these two factors, the extent of injury was dependent upon the level of the other factor, except for cracking of the seed coat, for which the interaction failed to be significant. Decreased levels of seed moisture content and increased cracking of seed coats, and a decrease in the proportion of visibly uncracked seed. Combine harvested seed tended to be smaller than hand harvested. Physiological responses of the combine harvested seed were evaluated by the standard germination test, accelerated aging test, storage under adverse conditions, and soil emergence. Seed harvested at 16.85% moisture produced lower germination percentages and lower vigor ratings than did seed harvested at 13.05 and 11.65% moisture.... Mostrar Tudo |
|
Palavras-Chave: |
1; 2; EUA; Seed; Sementes-danos mecânicos; Soja-Sementes-danos mecânicos; Soybean; Tese; Threshing; USA. |
|
Thesagro: |
Colheita; Dano Mecânico; Debulha; Semente; Soja. |
|
Thesaurus Nal: |
mechanical damage. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02354nam a2200325 a 4500
001 1459223
005 2007-09-18
008 1972 bl uuuu m 00u1 u #d
100 1 $aPOPINIGIS, F.
245 $aImmediate effects of mechanical injury on soybean (Glycine max (L.) Merrill) seed.
260 $a[Mississippi State]: Mississippi State University$c1972
300 $a75p.
500 $aM.Sc. Thesis.
520 $aA study was conducted to determine the immediate effects of mechanical damage to soybean seed as influenced by a combine harvester applying different levels of threshing effort on pods and seed at different levels of moisture content. Four rows were harvested at a time, and the yield was 34 bushels per acre. A rasp bar cylinder type harvesting combine was used to harvest the seed at 16.85, 13.05 and 1.65% moisture content, applying Threshing Indices of 70, 87, 108 and 130. Visible effects of damage, evaluated as percentage of split seed, cracked coated seed, visibly uncracked seed and seed size, revealed that the interaction of seed moisture and Threshing Index was of significant importance in determining the degree of injury to seed at harvesting. For any level of one of these two factors, the extent of injury was dependent upon the level of the other factor, except for cracking of the seed coat, for which the interaction failed to be significant. Decreased levels of seed moisture content and increased cracking of seed coats, and a decrease in the proportion of visibly uncracked seed. Combine harvested seed tended to be smaller than hand harvested. Physiological responses of the combine harvested seed were evaluated by the standard germination test, accelerated aging test, storage under adverse conditions, and soil emergence. Seed harvested at 16.85% moisture produced lower germination percentages and lower vigor ratings than did seed harvested at 13.05 and 11.65% moisture. Increased Threshing Index caused a decrease ...
650 $amechanical damage
650 $aColheita
650 $aDano Mecânico
650 $aDebulha
650 $aSemente
650 $aSoja
653 $a1
653 $a2
653 $aEUA
653 $aSeed
653 $aSementes-danos mecânicos
653 $aSoja-Sementes-danos mecânicos
653 $aSoybean
653 $aTese
653 $aThreshing
653 $aUSA
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Soja (CNPSO) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Gado de Corte. |
|
Data corrente: |
18/12/2018 |
|
Data da última atualização: |
18/12/2018 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 2 |
|
Autoria: |
DE SÁ, E. F. G. G.; RODRIGUES, V. DA S.; GARCIA, M. V.; ZIMMERMANN, N. P.; RAMOS, V. Do N.; BLECHA, I. M. Z.; DUARTE, P. De O.; MARTINS, T. F.; BORDIGNON, M. O.; ANDREOTTI, R. |
|
Afiliação: |
Érica Fernanda G. Gomes De Sá, Programa de Pós-Graduação em Biologia Animal/Centro de Ciências Biológicas e da Saúde/Universidade Federal de Mato Grosso do Sul - UFMS; Vinicius Da Silva Rodrigues, Pós-Graduação em Doenças Infecciosas e Parasitárias - FAMED/Universidade Federal de Mato Grosso do Sul - UFMS/Laboratório de Biologia do Carrapato, Embrapa Gado de Corte; Marcos Valério Garcia, Laboratório de Biologia do Carrapato/EMBRAPA Gado de Corte; Namor Pinheiro Zimmermann, Centro Universitário da Grande Dourados; Vanessa Do Nascimento Ramos, Pós-doutoranda em Ecologia de carrapatos /Faculdade de Medicina Veterinária e Zootecnia da USP; Isabella Maiumi Zaidan Blecha, Programa de Pós-graduação Ciência Anima/Universidade Federal de Mato Grosso do Sul - UFMS/Embrapa Gado de Corte; Pâmella De Oliveira Duarte, Pós-Graduação em Doenças Infecciosas e Parasitárias - FAMED/Universidade Federal de Mato Grosso do Sul - UFMS/Laboratório de Biologia do Carrapato, Embrapa Gado de Corte; Thiago Fernandes Martins, Departamento de Medicina Veterinária Preventiva e Saúde Animal /Faculdade de Medicina Veterinária e Zootecnia - Universidade de São Paulo - USP; Marcelo Oscar Bordignon, CNPGC; RENATO ANDREOTTI E SILVA, CNPGC. |
|
Título: |
Ticks on Didelphis albiventris from a Cerrado area in the Midwestern Brazil. |
|
Ano de publicação: |
2018 |
|
Fonte/Imprenta: |
Systematic and Applied Acarology, v. 23, n. 5, p. 935-945, May 2018 |
|
Idioma: |
Inglês |
|
Conteúdo: |
This experiment studied tick fauna associated to Didelphis albiventris Lund 1840 from a Cerrado area (Mato Grosso do Sul State, non-adjoining to Pantanal) inserted in a pasture and agricultural activities matrix, with few natural preserved forest patches. Authors also summarized data on ticks parasitizing Didelphis spp. in Brazil, and discussed infestation patterns in different biomes and locations. Study took place in Cervinho Farm, Bandeirantes Municipality. For captures, Tomahawk-like traps were distributed along two forest patches (30 each) during five nights. Captures occurred monthly (July/2013 to September/2014), sampling both fragments on alternate months. Animals were sedated and ticks were collected and stored in vials containing ethanol (70%) for identification. 51 D. albiventris were captured in 15 campaigns. Tick prevalence was 100%, and 49.5% of the animals were co-infested by two or more tick species. Four parasitizing species were found: Amblyomma sculptum Berlese, 1888 (78 nymphs), Ixodes loricatus Neumann, 1899 (56 adults), Amblyomma dubitatum Neumann, 1899 (45 nymphs), Amblyomma coelebs Neumann, 1899 (32 nymphs) and Amblyomma sp. (123 larvae). A. sculptum was the most abundant tick, but most frequent species were A. coelebs and A. dubitatum, followed by I. loricatus. Co-occurrences of more than two species were observed among all tick pairs. D. albiventris usually presents high prevalence of tick infestation. However, this study presented 100% prevalence. Knowledge of host-parasite relation and interactions between different ticks that coexist on a same host are essential, since such interaction may favor pathogen dissemination. This is of special relevance regarding D. albiventris, known for participating in maintenance of ecological cycles of Spotted Fever Group rickettsiae. MenosThis experiment studied tick fauna associated to Didelphis albiventris Lund 1840 from a Cerrado area (Mato Grosso do Sul State, non-adjoining to Pantanal) inserted in a pasture and agricultural activities matrix, with few natural preserved forest patches. Authors also summarized data on ticks parasitizing Didelphis spp. in Brazil, and discussed infestation patterns in different biomes and locations. Study took place in Cervinho Farm, Bandeirantes Municipality. For captures, Tomahawk-like traps were distributed along two forest patches (30 each) during five nights. Captures occurred monthly (July/2013 to September/2014), sampling both fragments on alternate months. Animals were sedated and ticks were collected and stored in vials containing ethanol (70%) for identification. 51 D. albiventris were captured in 15 campaigns. Tick prevalence was 100%, and 49.5% of the animals were co-infested by two or more tick species. Four parasitizing species were found: Amblyomma sculptum Berlese, 1888 (78 nymphs), Ixodes loricatus Neumann, 1899 (56 adults), Amblyomma dubitatum Neumann, 1899 (45 nymphs), Amblyomma coelebs Neumann, 1899 (32 nymphs) and Amblyomma sp. (123 larvae). A. sculptum was the most abundant tick, but most frequent species were A. coelebs and A. dubitatum, followed by I. loricatus. Co-occurrences of more than two species were observed among all tick pairs. D. albiventris usually presents high prevalence of tick infestation. However, this study presented 100% prevalence. ... Mostrar Tudo |
|
Palavras-Chave: |
Central West; Co-infestation. |
|
Thesaurus NAL: |
Brazil; Opossums; Ticks. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/188737/1/Ticks-on-Didelphis-albiventris.pdf
|
|
Marc: |
LEADER 02644naa a2200289 a 4500
001 2101860
005 2018-12-18
008 2018 bl uuuu u00u1 u #d
100 1 $aDE SÁ, E. F. G. G.
245 $aTicks on Didelphis albiventris from a Cerrado area in the Midwestern Brazil.$h[electronic resource]
260 $c2018
520 $aThis experiment studied tick fauna associated to Didelphis albiventris Lund 1840 from a Cerrado area (Mato Grosso do Sul State, non-adjoining to Pantanal) inserted in a pasture and agricultural activities matrix, with few natural preserved forest patches. Authors also summarized data on ticks parasitizing Didelphis spp. in Brazil, and discussed infestation patterns in different biomes and locations. Study took place in Cervinho Farm, Bandeirantes Municipality. For captures, Tomahawk-like traps were distributed along two forest patches (30 each) during five nights. Captures occurred monthly (July/2013 to September/2014), sampling both fragments on alternate months. Animals were sedated and ticks were collected and stored in vials containing ethanol (70%) for identification. 51 D. albiventris were captured in 15 campaigns. Tick prevalence was 100%, and 49.5% of the animals were co-infested by two or more tick species. Four parasitizing species were found: Amblyomma sculptum Berlese, 1888 (78 nymphs), Ixodes loricatus Neumann, 1899 (56 adults), Amblyomma dubitatum Neumann, 1899 (45 nymphs), Amblyomma coelebs Neumann, 1899 (32 nymphs) and Amblyomma sp. (123 larvae). A. sculptum was the most abundant tick, but most frequent species were A. coelebs and A. dubitatum, followed by I. loricatus. Co-occurrences of more than two species were observed among all tick pairs. D. albiventris usually presents high prevalence of tick infestation. However, this study presented 100% prevalence. Knowledge of host-parasite relation and interactions between different ticks that coexist on a same host are essential, since such interaction may favor pathogen dissemination. This is of special relevance regarding D. albiventris, known for participating in maintenance of ecological cycles of Spotted Fever Group rickettsiae.
650 $aBrazil
650 $aOpossums
650 $aTicks
653 $aCentral West
653 $aCo-infestation
700 1 $aRODRIGUES, V. DA S.
700 1 $aGARCIA, M. V.
700 1 $aZIMMERMANN, N. P.
700 1 $aRAMOS, V. Do N.
700 1 $aBLECHA, I. M. Z.
700 1 $aDUARTE, P. De O.
700 1 $aMARTINS, T. F.
700 1 $aBORDIGNON, M. O.
700 1 $aANDREOTTI, R.
773 $tSystematic and Applied Acarology$gv. 23, n. 5, p. 935-945, May 2018
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Gado de Corte (CNPGC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
