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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Solos. |
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Data corrente: |
24/08/2017 |
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Data da última atualização: |
27/12/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PACHECO, R. S.; BODDEY, R. M.; ALVES, B. J. R.; STRALIOTTO, R.; ARAÚJO, A. P. |
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Afiliação: |
RAFAEL SANCHES PACHECO, UFRRJ; ROBERT MICHAEL BODDEY, CNPAB; BRUNO JOSE RODRIGUES ALVES, CNPAB; ROSANGELA STRALIOTTO, CNPS; ADELSON PAULO ARAÚJO, UFRRJ. |
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Título: |
Growth patterns of common bean cultivars affect the B value required to quantify biological N2 fixation using the 15N natural abundance technique. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Plant and Soil, v. 419, n. 1, P. 293-304, 2017. |
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ISSN: |
1573-5036 |
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DOI: |
10.1007/s11104-017-3331-9 |
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Idioma: |
Inglês
Português |
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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 |
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Palavras-Chave: |
Biological nitrogen fixation; Seed size; Tamanho da semente. |
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Thesagro: |
Feijão; Fixação de Nitrogênio; Phaseolus vulgaris. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal
P Recursos Naturais, Ciências Ambientais e da Terra |
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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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| 1. |  | LOURENÇO JUNIOR, V. Pinta atroz. Cultivar Hortaliças e Frutas, Pelotas, Ano 15, n. 102, p. 06-07, fev./mar. 2017.| Tipo: Artigo de Divulgação na Mídia |
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| Registros recuperados : 64 | |
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