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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
25/08/2021 |
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Data da última atualização: |
30/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ZOFFOLI, B. C.; BRITO, L. F.; STRALIOTTO, R.; ARAÚJO, A. P. de. |
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Afiliação: |
BÁRBARA CAVALHEIRO ZOFFOLI, UFRRJ; LUCIANA FERNANDES BRITO, NORWEGIAN UNIVERSITY OF SCIENCE AND TECHNOLOGY; ROSANGELA STRALIOTTO, CNPS; ADELSON PAULO DE ARAÚJO, UFRRJ. |
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Título: |
Early nitrogen supplementation stimulates the nodulation and growth of common bean plants inoculated with rhizobium. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Acta Scientiarum. Agronomy, v. 43, n. 1, e55105, 2021. |
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DOI: |
https://doi.org/10.4025/actasciagron.v43i1.55105 |
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Idioma: |
Inglês |
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Conteúdo: |
The initial development of common bean plants (Phaseolus vulgaris L.) relying on symbiotic nitrogen (N) can be limited by delayed active N2 fixation, requiring supplemental N which in turn may inhibit the symbiosis. Five experiments were carried out in hydroponics to identify the initiation of nodulation and nitrogenase activity in common bean cultivars, and the effects of additions of mineral N on plant nodulation and growth. Three experiments evaluated the initial growth of five inoculated bean cultivars in the absence or presence of mineral N, and two experiments evaluated the effect of the moment of mineral N addition until the beginning of reproductive stage. The first root nodules appeared 10 days after plant transplant (DAT) and nitrogenase activity initiated 11 DAT. Cultivars of large seeds had lower initial nodulation and nitrogenase activity than those of small seeds. Inoculated plants showed limited shoot growth that lasted until 21-25 DAT as compared to inoculated plants receiving mineral N. Addition of mineral N reduced nodule mass more intensively than nodule number and more strongly nitrogenase activity. Nitrogen applied until 15 DAT enhanced nodulation and nitrogenase activity without limiting shoot growth, as compared to plants receiving N throughout their growth. Otherwise, plants that received N after 15 DAT had lower nodule mass and nitrogenase activity than plants only inoculated. The results indicate that symbiotic N did not suffice to an adequate growth of common beans and some supplemental N is necessary. This N should be added in the beginning of growth cycle to stimulate plant growth without inhibiting further nodulation and N fixation. MenosThe initial development of common bean plants (Phaseolus vulgaris L.) relying on symbiotic nitrogen (N) can be limited by delayed active N2 fixation, requiring supplemental N which in turn may inhibit the symbiosis. Five experiments were carried out in hydroponics to identify the initiation of nodulation and nitrogenase activity in common bean cultivars, and the effects of additions of mineral N on plant nodulation and growth. Three experiments evaluated the initial growth of five inoculated bean cultivars in the absence or presence of mineral N, and two experiments evaluated the effect of the moment of mineral N addition until the beginning of reproductive stage. The first root nodules appeared 10 days after plant transplant (DAT) and nitrogenase activity initiated 11 DAT. Cultivars of large seeds had lower initial nodulation and nitrogenase activity than those of small seeds. Inoculated plants showed limited shoot growth that lasted until 21-25 DAT as compared to inoculated plants receiving mineral N. Addition of mineral N reduced nodule mass more intensively than nodule number and more strongly nitrogenase activity. Nitrogen applied until 15 DAT enhanced nodulation and nitrogenase activity without limiting shoot growth, as compared to plants receiving N throughout their growth. Otherwise, plants that received N after 15 DAT had lower nodule mass and nitrogenase activity than plants only inoculated. The results indicate that symbiotic N did not suffice to an adequate growt... Mostrar Tudo |
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Palavras-Chave: |
Rhizobia. |
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Thesagro: |
Fertilizante Nitrogenado; Fixação de Nitrogênio; Inoculação; Phaseolus Vulgaris. |
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Thesaurus Nal: |
Nitrogen fertilizers; Nitrogen fixation; Seed inoculation. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/225483/1/Early-nitrogen-supplementation-stimulates-2021.pdf
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Marc: |
LEADER 02547naa a2200265 a 4500
001 2133859
005 2021-08-30
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.4025/actasciagron.v43i1.55105$2DOI
100 1 $aZOFFOLI, B. C.
245 $aEarly nitrogen supplementation stimulates the nodulation and growth of common bean plants inoculated with rhizobium.$h[electronic resource]
260 $c2021
520 $aThe initial development of common bean plants (Phaseolus vulgaris L.) relying on symbiotic nitrogen (N) can be limited by delayed active N2 fixation, requiring supplemental N which in turn may inhibit the symbiosis. Five experiments were carried out in hydroponics to identify the initiation of nodulation and nitrogenase activity in common bean cultivars, and the effects of additions of mineral N on plant nodulation and growth. Three experiments evaluated the initial growth of five inoculated bean cultivars in the absence or presence of mineral N, and two experiments evaluated the effect of the moment of mineral N addition until the beginning of reproductive stage. The first root nodules appeared 10 days after plant transplant (DAT) and nitrogenase activity initiated 11 DAT. Cultivars of large seeds had lower initial nodulation and nitrogenase activity than those of small seeds. Inoculated plants showed limited shoot growth that lasted until 21-25 DAT as compared to inoculated plants receiving mineral N. Addition of mineral N reduced nodule mass more intensively than nodule number and more strongly nitrogenase activity. Nitrogen applied until 15 DAT enhanced nodulation and nitrogenase activity without limiting shoot growth, as compared to plants receiving N throughout their growth. Otherwise, plants that received N after 15 DAT had lower nodule mass and nitrogenase activity than plants only inoculated. The results indicate that symbiotic N did not suffice to an adequate growth of common beans and some supplemental N is necessary. This N should be added in the beginning of growth cycle to stimulate plant growth without inhibiting further nodulation and N fixation.
650 $aNitrogen fertilizers
650 $aNitrogen fixation
650 $aSeed inoculation
650 $aFertilizante Nitrogenado
650 $aFixação de Nitrogênio
650 $aInoculação
650 $aPhaseolus Vulgaris
653 $aRhizobia
700 1 $aBRITO, L. F.
700 1 $aSTRALIOTTO, R.
700 1 $aARAÚJO, A. P. de
773 $tActa Scientiarum. Agronomy$gv. 43, n. 1, e55105, 2021.
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Registro original: |
Embrapa Solos (CNPS) |
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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: |
13/08/2021 |
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Data da última atualização: |
13/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
BRITO, L. C.; PEIXOTO, M. G. C. D.; CARRARA, E. R.; SILVA, F. F. e; VENTURA, H. T.; BRUNELI, F. A. T.; LOPES, P. S. |
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Afiliação: |
LAÍS COSTA BRITO, Universidade Federal de Viçosa; MARIA GABRIELA CAMPOLINA D PEIXOTO, CNPGL; EULA REGINA CARRARA, Universidade Federal de Viçosa; FABYANO FONSECA E SILVA, Universidade Federal de Viçosa; HENRIQUE TORRES VENTURA, Associação Brasileira de Criadores de Zebu; FRANK ANGELO TOMITA BRUNELI, CNPGL; PAULO SÁVIO LOPES, Universidade Federal de Viçosa. |
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Título: |
Genetic parameters for milk, growth, and reproductive traits in Guzerá cattle under tropical conditions. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Tropical Animal Health and Production, v. 52, p. 2251-2257, 2020. |
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DOI: |
https://doi.org/10.1007/s11250-020-02255-0 |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to estimate the genetic parameters of milk (305-day milk yield (MY305)), growth (weaning weight (WW), yearling weight (YW), and weight at 550 days (W550)), and reproductive (age at first calving (AFC)) traits in Guzerá cattle by using Bayesian multiple-trait models. Systematic effects included sex and age at calving for the growth and milk traits, respectively. The additive genetic and contemporary groups (herd and year and season of birth) were included as random effects. Additionally, maternal genetic and permanent effects were also included as random effects for theWW. The heritability estimates were 0.29 (MY305), 0.42 (WW), 0.49 (YW), 0.56 (W550), and 0.25 (AFC). The genetic correlations among the growth traits were higher than 0.83; between the MY305 and WW, MY305 and YW, and MY305 and W550, the genetic correlations were 0.25, 0.32, and 0.36, respectively. The AFC was negatively correlated with the milk and growth traits. These results suggest the viability and potential of the joint selection for milk, beef, and reproductive traits in Guzerá cattle. |
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Palavras-Chave: |
Bayesian inference; Correlação genética; Inferência bayesiana; Zebu cattle. |
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Thesagro: |
Bovino; Crescimento; Gado Guzerá; Gado Zebu; Produção Leiteira; Reprodução Animal. |
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Thesaurus NAL: |
Genetic correlation; Milk yield. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02144naa a2200349 a 4500
001 2133530
005 2021-08-13
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s11250-020-02255-0$2DOI
100 1 $aBRITO, L. C.
245 $aGenetic parameters for milk, growth, and reproductive traits in Guzerá cattle under tropical conditions.$h[electronic resource]
260 $c2020
520 $aThis study aimed to estimate the genetic parameters of milk (305-day milk yield (MY305)), growth (weaning weight (WW), yearling weight (YW), and weight at 550 days (W550)), and reproductive (age at first calving (AFC)) traits in Guzerá cattle by using Bayesian multiple-trait models. Systematic effects included sex and age at calving for the growth and milk traits, respectively. The additive genetic and contemporary groups (herd and year and season of birth) were included as random effects. Additionally, maternal genetic and permanent effects were also included as random effects for theWW. The heritability estimates were 0.29 (MY305), 0.42 (WW), 0.49 (YW), 0.56 (W550), and 0.25 (AFC). The genetic correlations among the growth traits were higher than 0.83; between the MY305 and WW, MY305 and YW, and MY305 and W550, the genetic correlations were 0.25, 0.32, and 0.36, respectively. The AFC was negatively correlated with the milk and growth traits. These results suggest the viability and potential of the joint selection for milk, beef, and reproductive traits in Guzerá cattle.
650 $aGenetic correlation
650 $aMilk yield
650 $aBovino
650 $aCrescimento
650 $aGado Guzerá
650 $aGado Zebu
650 $aProdução Leiteira
650 $aReprodução Animal
653 $aBayesian inference
653 $aCorrelação genética
653 $aInferência bayesiana
653 $aZebu cattle
700 1 $aPEIXOTO, M. G. C. D.
700 1 $aCARRARA, E. R.
700 1 $aSILVA, F. F. e
700 1 $aVENTURA, H. T.
700 1 $aBRUNELI, F. A. T.
700 1 $aLOPES, P. S.
773 $tTropical Animal Health and Production$gv. 52, p. 2251-2257, 2020.
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