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Registro Completo |
Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Solos. |
Data corrente: |
24/08/2017 |
Data da última atualização: |
27/12/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
PACHECO, R. S.; BODDEY, R. M.; ALVES, B. J. R.; STRALIOTTO, R.; ARAÚJO, A. P. |
Afiliação: |
RAFAEL SANCHES PACHECO, UFRRJ; ROBERT MICHAEL BODDEY, CNPAB; BRUNO JOSE RODRIGUES ALVES, CNPAB; ROSANGELA STRALIOTTO, CNPS; ADELSON PAULO ARAÚJO, UFRRJ. |
Título: |
Growth patterns of common bean cultivars affect the B value required to quantify biological N2 fixation using the 15N natural abundance technique. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Plant and Soil, v. 419, n. 1, P. 293-304, 2017. |
ISSN: |
1573-5036 |
DOI: |
10.1007/s11104-017-3331-9 |
Idioma: |
Inglês Português |
Conteúdo: |
The ?B? value, the 15N abundance of plants depending completely on biological nitrogen fixation (BNF) for growth, is required for quantifying BNF using the 15N natural abundance technique. This study aimed to investigate how common bean (Phaseolus vulgaris L.) cultivars with different growth patterns could affect the ?B? value calculated for the plant shoot. Two experiments were conducted in N-free solution. Experiment I had a factorial design with three cultivars and two rhizobium inoculants. Plants were harvested at pre-flowering stage. Experiment II was also factorial with two cultivars and two times of sampling: full flowering and mid-pod filling. Total N and δ15N analyses of different plant parts were carried out to estimate the ?B? value. There were differences between cultivars for N accumulation and 15N abundance, but no difference between rhizobium inoculants. Results revealed differences in ?B? value between cultivars of small and large seeds, the growth stage being also relevant. The ?B? values of −2.08 and −1.34? could be used for BNF estimates in small-seeded cultivars at full flowering and mid-pod filling stages, respectively, while such values should change, respectively, to −1.73 and −1.03? for large-seed cultivars. The mean ?B? value in shoots was −1.90 and −1.20? at full flowering and mid-pod filling stages, respectively. There are variations in ?B? value between cultivars of different cycle length and seed sizes, which are associated with plant architecture, thus a ?B? for each growth stage of common bean plants is required. MenosThe ?B? value, the 15N abundance of plants depending completely on biological nitrogen fixation (BNF) for growth, is required for quantifying BNF using the 15N natural abundance technique. This study aimed to investigate how common bean (Phaseolus vulgaris L.) cultivars with different growth patterns could affect the ?B? value calculated for the plant shoot. Two experiments were conducted in N-free solution. Experiment I had a factorial design with three cultivars and two rhizobium inoculants. Plants were harvested at pre-flowering stage. Experiment II was also factorial with two cultivars and two times of sampling: full flowering and mid-pod filling. Total N and δ15N analyses of different plant parts were carried out to estimate the ?B? value. There were differences between cultivars for N accumulation and 15N abundance, but no difference between rhizobium inoculants. Results revealed differences in ?B? value between cultivars of small and large seeds, the growth stage being also relevant. The ?B? values of −2.08 and −1.34? could be used for BNF estimates in small-seeded cultivars at full flowering and mid-pod filling stages, respectively, while such values should change, respectively, to −1.73 and −1.03? for large-seed cultivars. The mean ?B? value in shoots was −1.90 and −1.20? at full flowering and mid-pod filling stages, respectively. There are variations in ?B? value between cultivars of different cycle length and seed sizes, wh... Mostrar Tudo |
Palavras-Chave: |
Biological nitrogen fixation; Seed size; Tamanho da semente. |
Thesagro: |
Feijão; Fixação de Nitrogênio; Phaseolus vulgaris. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02454naa a2200265 a 4500 001 2082313 005 2017-12-27 008 2017 bl uuuu u00u1 u #d 022 $a1573-5036 024 7 $a10.1007/s11104-017-3331-9$2DOI 100 1 $aPACHECO, R. S. 245 $aGrowth patterns of common bean cultivars affect the B value required to quantify biological N2 fixation using the 15N natural abundance technique.$h[electronic resource] 260 $c2017 520 $aThe ?B? value, the 15N abundance of plants depending completely on biological nitrogen fixation (BNF) for growth, is required for quantifying BNF using the 15N natural abundance technique. This study aimed to investigate how common bean (Phaseolus vulgaris L.) cultivars with different growth patterns could affect the ?B? value calculated for the plant shoot. Two experiments were conducted in N-free solution. Experiment I had a factorial design with three cultivars and two rhizobium inoculants. Plants were harvested at pre-flowering stage. Experiment II was also factorial with two cultivars and two times of sampling: full flowering and mid-pod filling. Total N and δ15N analyses of different plant parts were carried out to estimate the ?B? value. There were differences between cultivars for N accumulation and 15N abundance, but no difference between rhizobium inoculants. Results revealed differences in ?B? value between cultivars of small and large seeds, the growth stage being also relevant. The ?B? values of −2.08 and −1.34? could be used for BNF estimates in small-seeded cultivars at full flowering and mid-pod filling stages, respectively, while such values should change, respectively, to −1.73 and −1.03? for large-seed cultivars. The mean ?B? value in shoots was −1.90 and −1.20? at full flowering and mid-pod filling stages, respectively. There are variations in ?B? value between cultivars of different cycle length and seed sizes, which are associated with plant architecture, thus a ?B? for each growth stage of common bean plants is required. 650 $aFeijão 650 $aFixação de Nitrogênio 650 $aPhaseolus vulgaris 653 $aBiological nitrogen fixation 653 $aSeed size 653 $aTamanho da semente 700 1 $aBODDEY, R. M. 700 1 $aALVES, B. J. R. 700 1 $aSTRALIOTTO, R. 700 1 $aARAÚJO, A. P. 773 $tPlant and Soil$gv. 419, n. 1, P. 293-304, 2017.
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Embrapa Agrobiologia (CNPAB) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Gado de Corte. |
Data corrente: |
02/09/2003 |
Data da última atualização: |
02/09/2003 |
Autoria: |
ARAÚJO, M. R.; SOUZA, O. C. de. |
Afiliação: |
Embrapa Gado de Corte (Campo Grande, MS). |
Título: |
Fragmentação florestal e a degradação das terras. |
Ano de publicação: |
2003 |
Fonte/Imprenta: |
In: COSTA, R. B. [Org.]. Fragmentação florestal e alternativas de desenvolviemento rural na Região Centro-Oeste. Campo Grande: UCBD, 2003. |
Páginas: |
p. 113-138. |
Idioma: |
Português |
Notas: |
CNPGC. |
Conteúdo: |
Conceitos sobre vegetação. Importância da vegetação. Substituição da vegetação - relações locais, regionais e globais. Conceitos sobre sistema e ecossistema. Fragmentação da cobertura vegetal da terra. Conceitos de degradação das terras e desertificação Desertificação. O ecossistema dos cerrados. Fragmentação florestal: o exemplo na bacia hidrográfica do Taquarí.A fragmentação vegetal. |
Palavras-Chave: |
Brazilian savannas. |
Thesagro: |
Cerrado; Deterioração; Floresta; Terra; Vegetação. |
Thesaurus NAL: |
deterioration; forests; land; vegetation. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01182naa a2200277 a 4500 001 1325370 005 2003-09-02 008 2003 bl uuuu u00u1 u #d 100 1 $aARAÚJO, M. R. 245 $aFragmentação florestal e a degradação das terras. 260 $c2003 300 $ap. 113-138. 500 $aCNPGC. 520 $aConceitos sobre vegetação. Importância da vegetação. Substituição da vegetação - relações locais, regionais e globais. Conceitos sobre sistema e ecossistema. Fragmentação da cobertura vegetal da terra. Conceitos de degradação das terras e desertificação Desertificação. O ecossistema dos cerrados. Fragmentação florestal: o exemplo na bacia hidrográfica do Taquarí.A fragmentação vegetal. 650 $adeterioration 650 $aforests 650 $aland 650 $avegetation 650 $aCerrado 650 $aDeterioração 650 $aFloresta 650 $aTerra 650 $aVegetação 653 $aBrazilian savannas 700 1 $aSOUZA, O. C. de 773 $tIn: COSTA, R. B. [Org.]. Fragmentação florestal e alternativas de desenvolviemento rural na Região Centro-Oeste. Campo Grande: UCBD, 2003.
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