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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
23/09/2004 |
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Data da última atualização: |
23/09/2004 |
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Autoria: |
CANUTO, E. de L.; OLIVEIRA, A. L. M. de; REIS, V. M.; BALDANI, J. I. |
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Título: |
Evaluation of the biological nitrogen fixation contribution in sugarcane plants originated from seeds and inoculated with nitrogen-fixing endophytes. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Brazilian Journal of Microbiology, São Paulo, v. 34, Suppl. n. 1, p. 62-64, 2003. |
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Idioma: |
Inglês |
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Notas: |
Avaliação da contribuição da fixação biológica de nitrogênio em cana-de-açúcar originada de sementes e inoculada com endófitos fixadores de nitrogênio. |
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Conteúdo: |
The inoculation technique with endophytic diazotrophic bacteria in sugarcane has been shown as an alternative practice to plant growth promotion. The aim of this work was to evaluate the biological nitrogen fixation (BNF) contribution by different strains of Herbaspirillum seropedicae and Gluconacetobacter diazotrophicus in sugarcane plant inoculated from seeds. The seeds were planted in pots filled with non-sterile soil, inoculated with the bacterial strains and grown 10 months outside of the greenhouse. The BNF contribution of the inoculated bacteria varied depending on the plant species used as a control. The highesr BNF contribution as well as the highest populations of reisolated bacteria was observed with inoculation of H. seropedicae strains. The roots appeared to be the preferential tissues for the establishment of the inoculated species.
A técnica de inoculação com bactérias diazotróficas endofíticas na cana-de-açúcar apresenta-se como uma prática alternativa para promover o crescimento vegetal menos dependente da adubação nitrogenada. Este trabalho teve como objetivo avaliar a contribuição da fixação biológica de nitrogênio (FBN) por diferentes estirpes de Herbaspirillum seropedicae e Gluconacetobacter diazotrophicus inoculadas em plantas de cana-de-açúcar originadas de semente. As sementes foram plantadas em vasos com solo não estéril, inoculadas com as diferentes bactérias e mantidas por 10 meses ao ar livre. As maiores contribições da FBN ocorreram com a inoculação de estirpes Herbaspirillum seropedicae, e dependeram da espécie vegetal utilizada como testemunha. As raízes apresentaram-se como o órgão vegetal preferencial para o estabelecimento das espécies inoculadas. MenosThe inoculation technique with endophytic diazotrophic bacteria in sugarcane has been shown as an alternative practice to plant growth promotion. The aim of this work was to evaluate the biological nitrogen fixation (BNF) contribution by different strains of Herbaspirillum seropedicae and Gluconacetobacter diazotrophicus in sugarcane plant inoculated from seeds. The seeds were planted in pots filled with non-sterile soil, inoculated with the bacterial strains and grown 10 months outside of the greenhouse. The BNF contribution of the inoculated bacteria varied depending on the plant species used as a control. The highesr BNF contribution as well as the highest populations of reisolated bacteria was observed with inoculation of H. seropedicae strains. The roots appeared to be the preferential tissues for the establishment of the inoculated species.
A técnica de inoculação com bactérias diazotróficas endofíticas na cana-de-açúcar apresenta-se como uma prática alternativa para promover o crescimento vegetal menos dependente da adubação nitrogenada. Este trabalho teve como objetivo avaliar a contribuição da fixação biológica de nitrogênio (FBN) por diferentes estirpes de Herbaspirillum seropedicae e Gluconacetobacter diazotrophicus inoculadas em plantas de cana-de-açúcar originadas de semente. As sementes foram plantadas em vasos com solo não estéril, inoculadas com as diferentes bactérias e mantidas por 10 meses ao ar livre. As maiores contribições da FBN ocorreram com a inocul... Mostrar Tudo |
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Palavras-Chave: |
Bactéria diazotrófica endofítica; Biological nitrogen fixation; BNF; Cana-de-açúcar; Endophytic diazotrophic bacteria; FBN; Fixação biológica de nitrogênio. |
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Thesaurus Nal: |
Gluconacetobacter diazotrophicus; Herbaspirillum seropedicae; sugarcane. |
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Categoria do assunto: |
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Marc: |
LEADER 02865naa a2200289 a 4500
001 1626454
005 2004-09-23
008 2003 bl --- 0-- u #d
100 1 $aCANUTO, E. de L.
245 $aEvaluation of the biological nitrogen fixation contribution in sugarcane plants originated from seeds and inoculated with nitrogen-fixing endophytes.
260 $c2003
500 $aAvaliação da contribuição da fixação biológica de nitrogênio em cana-de-açúcar originada de sementes e inoculada com endófitos fixadores de nitrogênio.
520 $aThe inoculation technique with endophytic diazotrophic bacteria in sugarcane has been shown as an alternative practice to plant growth promotion. The aim of this work was to evaluate the biological nitrogen fixation (BNF) contribution by different strains of Herbaspirillum seropedicae and Gluconacetobacter diazotrophicus in sugarcane plant inoculated from seeds. The seeds were planted in pots filled with non-sterile soil, inoculated with the bacterial strains and grown 10 months outside of the greenhouse. The BNF contribution of the inoculated bacteria varied depending on the plant species used as a control. The highesr BNF contribution as well as the highest populations of reisolated bacteria was observed with inoculation of H. seropedicae strains. The roots appeared to be the preferential tissues for the establishment of the inoculated species. A técnica de inoculação com bactérias diazotróficas endofíticas na cana-de-açúcar apresenta-se como uma prática alternativa para promover o crescimento vegetal menos dependente da adubação nitrogenada. Este trabalho teve como objetivo avaliar a contribuição da fixação biológica de nitrogênio (FBN) por diferentes estirpes de Herbaspirillum seropedicae e Gluconacetobacter diazotrophicus inoculadas em plantas de cana-de-açúcar originadas de semente. As sementes foram plantadas em vasos com solo não estéril, inoculadas com as diferentes bactérias e mantidas por 10 meses ao ar livre. As maiores contribições da FBN ocorreram com a inoculação de estirpes Herbaspirillum seropedicae, e dependeram da espécie vegetal utilizada como testemunha. As raízes apresentaram-se como o órgão vegetal preferencial para o estabelecimento das espécies inoculadas.
650 $aGluconacetobacter diazotrophicus
650 $aHerbaspirillum seropedicae
650 $asugarcane
653 $aBactéria diazotrófica endofítica
653 $aBiological nitrogen fixation
653 $aBNF
653 $aCana-de-açúcar
653 $aEndophytic diazotrophic bacteria
653 $aFBN
653 $aFixação biológica de nitrogênio
700 1 $aOLIVEIRA, A. L. M. de
700 1 $aREIS, V. M.
700 1 $aBALDANI, J. I.
773 $tBrazilian Journal of Microbiology, São Paulo$gv. 34, Suppl. n. 1, p. 62-64, 2003.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
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Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Rondônia. |
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Data corrente: |
15/03/2023 |
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Data da última atualização: |
15/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
TOMAZI FILHO, J.; PFEIFER, L. F. M.; HOEFLE, C. A.; RODRIGUES, M. F.; FERREIRA, R. |
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Afiliação: |
JUAREZ TOMAZI FILHO, SANTA CATARINA STATE UNIVERSITY; LUIZ FRANCISCO MACHADO PFEIFER, CPAF-RO; CLÉRIO ANTÔNIO HOEFLE, SANTA CATARINA STATE UNIVERSITY; MURILO FARIAS RODRIGUES, SANTA CATARINA STATE UNIVERSITY; ROGÉRIO FERREIRA, SANTA CATARINA STATE UNIVERSITY. |
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Título: |
Effect of calving to timed artificial insemination interval on fertility of beef cows. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Reproduction in Domestic Animals, v. 57, p. 936?942., 2022. |
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Idioma: |
Inglês |
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Conteúdo: |
The objectives of this study were to determine the effect of calving to timed artificial insemination (C-TAI) interval on fertility of Bos taurus and Bos indicus cows and to determine the best C-TAI interval to include postpartum cows in TAI programs in each genotype (B. taurus and B. indicus). In experiment 1, a retrospective study was per-formed, with data from 2,709 TAI in Bos taurus and Bos indicus cows with different C- TAI intervals. There was a positive linear effect of C-TAI interval on the pregnancy probability (p< .0001). However, there was no effect or interaction with the geno-type. When C-TAI intervals were grouped in classes, pregnancy rate differed in groups (p< .05). Receiver operating characteristic (ROC) analysis was performed, and it was observed that 52 days would be the better C-TAI interval to maximize fertility in beef cows. According to the previous result, we further stratified into two C-TAI interval groups (≤ 52 days or > 52 days). Cows with C-TAI longer than 52 days (C-TAI > 52) had greater pregnancy rate (56%) than cows with short C-TAI (46%; p< .01). In experi-ment 2, 18 postpartum beef cows were subjected to TAI protocol at different C-TAI intervals (n= 6 cows per group): 40, 60 or 80 days postpartum. Cows with 60 days of C- TAI had a greater preovulatory follicle diameter than cows with 80 days postpartum (p< .05). The C-TAI interval did not affect (p> .05) the ovulation rate nor the propor-tion of endometrial polymorphonuclear leucocytes. We conclude that C-TAI interval affects pregnancy rate in both Bos taurus and Bos indicus. We recommend a C-TAI in-terval longer than 52 days to increase fertility of beef cows included in TAI programs. MenosThe objectives of this study were to determine the effect of calving to timed artificial insemination (C-TAI) interval on fertility of Bos taurus and Bos indicus cows and to determine the best C-TAI interval to include postpartum cows in TAI programs in each genotype (B. taurus and B. indicus). In experiment 1, a retrospective study was per-formed, with data from 2,709 TAI in Bos taurus and Bos indicus cows with different C- TAI intervals. There was a positive linear effect of C-TAI interval on the pregnancy probability (p< .0001). However, there was no effect or interaction with the geno-type. When C-TAI intervals were grouped in classes, pregnancy rate differed in groups (p< .05). Receiver operating characteristic (ROC) analysis was performed, and it was observed that 52 days would be the better C-TAI interval to maximize fertility in beef cows. According to the previous result, we further stratified into two C-TAI interval groups (≤ 52 days or > 52 days). Cows with C-TAI longer than 52 days (C-TAI > 52) had greater pregnancy rate (56%) than cows with short C-TAI (46%; p< .01). In experi-ment 2, 18 postpartum beef cows were subjected to TAI protocol at different C-TAI intervals (n= 6 cows per group): 40, 60 or 80 days postpartum. Cows with 60 days of C- TAI had a greater preovulatory follicle diameter than cows with 80 days postpartum (p< .05). The C-TAI interval did not affect (p> .05) the ovulation rate nor the propor-tion of endometrial polymorphonuclear leucocyte... Mostrar Tudo |
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Palavras-Chave: |
Endometrial cytology. |
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Thesaurus NAL: |
Pregnancy rate; Reproductive efficiency. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1152396/1/RDA-2022-Tomazi-Filho-Effect-of-calving-to-timed-artificial-insemination-interval-on-fertility-of.pdf
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Marc: |
LEADER 02347naa a2200205 a 4500
001 2152396
005 2023-03-15
008 2022 bl uuuu u00u1 u #d
100 1 $aTOMAZI FILHO, J.
245 $aEffect of calving to timed artificial insemination interval on fertility of beef cows.$h[electronic resource]
260 $c2022
520 $aThe objectives of this study were to determine the effect of calving to timed artificial insemination (C-TAI) interval on fertility of Bos taurus and Bos indicus cows and to determine the best C-TAI interval to include postpartum cows in TAI programs in each genotype (B. taurus and B. indicus). In experiment 1, a retrospective study was per-formed, with data from 2,709 TAI in Bos taurus and Bos indicus cows with different C- TAI intervals. There was a positive linear effect of C-TAI interval on the pregnancy probability (p< .0001). However, there was no effect or interaction with the geno-type. When C-TAI intervals were grouped in classes, pregnancy rate differed in groups (p< .05). Receiver operating characteristic (ROC) analysis was performed, and it was observed that 52 days would be the better C-TAI interval to maximize fertility in beef cows. According to the previous result, we further stratified into two C-TAI interval groups (≤ 52 days or > 52 days). Cows with C-TAI longer than 52 days (C-TAI > 52) had greater pregnancy rate (56%) than cows with short C-TAI (46%; p< .01). In experi-ment 2, 18 postpartum beef cows were subjected to TAI protocol at different C-TAI intervals (n= 6 cows per group): 40, 60 or 80 days postpartum. Cows with 60 days of C- TAI had a greater preovulatory follicle diameter than cows with 80 days postpartum (p< .05). The C-TAI interval did not affect (p> .05) the ovulation rate nor the propor-tion of endometrial polymorphonuclear leucocytes. We conclude that C-TAI interval affects pregnancy rate in both Bos taurus and Bos indicus. We recommend a C-TAI in-terval longer than 52 days to increase fertility of beef cows included in TAI programs.
650 $aPregnancy rate
650 $aReproductive efficiency
653 $aEndometrial cytology
700 1 $aPFEIFER, L. F. M.
700 1 $aHOEFLE, C. A.
700 1 $aRODRIGUES, M. F.
700 1 $aFERREIRA, R.
773 $tReproduction in Domestic Animals$gv. 57, p. 936?942., 2022.
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