| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Trigo. Para informações adicionais entre em contato com cnpt.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Trigo. |
|
Data corrente: |
16/04/2021 |
|
Data da última atualização: |
10/12/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
LOLLATO, R. P.; JAENISCH, B. R.; SILVA, S. R. |
|
Afiliação: |
ROMULO P. LOLLATO, Dep. of Agronomy, Kansas State Univ., 2004 Throckmorton Bld., 1712 Claflin Rd., Manhattan, KS 66506, USA; BRENT R. JAENISCH, 1 Dep. of Agronomy, Kansas State Univ., 2004 Throckmorton Bld., 1712 Claflin Rd., Manhattan, KS 66506, USA; SERGIO RICARDO SILVA, CNPT. |
|
Título: |
Genotype-specific nitrogen uptake dynamics and fertilizer management explain contrasting wheat protein concentration. |
|
Ano de publicação: |
2021 |
|
Fonte/Imprenta: |
Crop Science, p. 1-19, Dec. 2021. |
|
DOI: |
10.1002/csc2.20442 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Increasing yield and grain protein concentration (GPC) in wheat (Triticum aestivum L.) without excessive nitrogen (N) rates requires increasing N use efficiency (NUE, yield per available N). We assessed the effects of N rate and timing on yield, GPC, and N nutritional indices of two winter wheat genotypes with similar yield but contrasting GPC. Factorial field experiments evaluated the wheat genotypes ?LCS Chrome? (high GPC) and ?WB?Grainfield? (low GPC), three N rates, and four N timings (?Fall?, 100% of N rate applied at Zadoks GS20; ?Spring?, 100% at GS25; ?Split?, 40% Fall plus 60% Spring; and ?Anthesis?, 40% fall, 50% spring, and 10% at GS61) in six Kansas environments. Yield ranged from 2,853 to 8,023 kg ha-1 and GPC from 88 to 152 g kg-1. Fall and spring N timing had the lowest and greatest yield difference from the zero-N control and showed linear, linear-plateau or no responses to N rate. ?LCS Chrome? had 5 to 19 g kg-1 greater GPC than ?WB?Grainfield?, which was associated with greater post-anthesis N uptake (24 vs 15% of maturity-N uptake), a greater spike N gain between anthesis and maturity (7.4 vs 6.5 g m-2), and greater N recovery efficiency (0.34 vs 0.28 kg kg-1). Greater N rates and Anthesis or Spring N timings increased GPC. The NUE (range: 20?311 kg kg-1) was inversely related to N availability, and Fall N timing had the lowest NUE. Our results highlighted physiological reasons for genotype-specific GPC performance and suggested agronomic opportunities to simultaneously improve wheat yield and GPC. MenosIncreasing yield and grain protein concentration (GPC) in wheat (Triticum aestivum L.) without excessive nitrogen (N) rates requires increasing N use efficiency (NUE, yield per available N). We assessed the effects of N rate and timing on yield, GPC, and N nutritional indices of two winter wheat genotypes with similar yield but contrasting GPC. Factorial field experiments evaluated the wheat genotypes ?LCS Chrome? (high GPC) and ?WB?Grainfield? (low GPC), three N rates, and four N timings (?Fall?, 100% of N rate applied at Zadoks GS20; ?Spring?, 100% at GS25; ?Split?, 40% Fall plus 60% Spring; and ?Anthesis?, 40% fall, 50% spring, and 10% at GS61) in six Kansas environments. Yield ranged from 2,853 to 8,023 kg ha-1 and GPC from 88 to 152 g kg-1. Fall and spring N timing had the lowest and greatest yield difference from the zero-N control and showed linear, linear-plateau or no responses to N rate. ?LCS Chrome? had 5 to 19 g kg-1 greater GPC than ?WB?Grainfield?, which was associated with greater post-anthesis N uptake (24 vs 15% of maturity-N uptake), a greater spike N gain between anthesis and maturity (7.4 vs 6.5 g m-2), and greater N recovery efficiency (0.34 vs 0.28 kg kg-1). Greater N rates and Anthesis or Spring N timings increased GPC. The NUE (range: 20?311 kg kg-1) was inversely related to N availability, and Fall N timing had the lowest NUE. Our results highlighted physiological reasons for genotype-specific GPC performance and suggested agronomic opportunities to ... Mostrar Tudo |
|
Palavras-Chave: |
Grain protein concentration (GPC); Wheat (Triticum aestivum L). |
|
Thesagro: |
Trigo; Triticale. |
|
Thesaurus Nal: |
Wheat. |
|
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
|
Marc: |
LEADER 02205naa a2200217 a 4500
001 2131344
005 2021-12-10
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1002/csc2.20442$2DOI
100 1 $aLOLLATO, R. P.
245 $aGenotype-specific nitrogen uptake dynamics and fertilizer management explain contrasting wheat protein concentration.$h[electronic resource]
260 $c2021
520 $aIncreasing yield and grain protein concentration (GPC) in wheat (Triticum aestivum L.) without excessive nitrogen (N) rates requires increasing N use efficiency (NUE, yield per available N). We assessed the effects of N rate and timing on yield, GPC, and N nutritional indices of two winter wheat genotypes with similar yield but contrasting GPC. Factorial field experiments evaluated the wheat genotypes ?LCS Chrome? (high GPC) and ?WB?Grainfield? (low GPC), three N rates, and four N timings (?Fall?, 100% of N rate applied at Zadoks GS20; ?Spring?, 100% at GS25; ?Split?, 40% Fall plus 60% Spring; and ?Anthesis?, 40% fall, 50% spring, and 10% at GS61) in six Kansas environments. Yield ranged from 2,853 to 8,023 kg ha-1 and GPC from 88 to 152 g kg-1. Fall and spring N timing had the lowest and greatest yield difference from the zero-N control and showed linear, linear-plateau or no responses to N rate. ?LCS Chrome? had 5 to 19 g kg-1 greater GPC than ?WB?Grainfield?, which was associated with greater post-anthesis N uptake (24 vs 15% of maturity-N uptake), a greater spike N gain between anthesis and maturity (7.4 vs 6.5 g m-2), and greater N recovery efficiency (0.34 vs 0.28 kg kg-1). Greater N rates and Anthesis or Spring N timings increased GPC. The NUE (range: 20?311 kg kg-1) was inversely related to N availability, and Fall N timing had the lowest NUE. Our results highlighted physiological reasons for genotype-specific GPC performance and suggested agronomic opportunities to simultaneously improve wheat yield and GPC.
650 $aWheat
650 $aTrigo
650 $aTriticale
653 $aGrain protein concentration (GPC)
653 $aWheat (Triticum aestivum L)
700 1 $aJAENISCH, B. R.
700 1 $aSILVA, S. R.
773 $tCrop Science, p. 1-19, Dec. 2021.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Trigo (CNPT) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 891 | |
| 4. |  | PLOTEGHER, F.; RIBEIRO, C. Avaliação do potencial uso direto de rochas fosfáticas para a fertilização de solos: um estudo inicial. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 7.; ESCOLA DE NANOTECNOLOGIA, 3., 2013, São Carlos, SP. Anais... São Carlos, SP: Embrapa Instrumentação, 2013. p. 439-441 Editores: Maria Alice Martins, Odílio Benedito Garrido de Assis, Caue Ribeiro, Luiz Henrique Capparelli Mattoso. CD-ROM. Editores: Maria Alice Martins, Odílio Benedito Garrido de Assis, Caue Ribeiro, Luiz Henrique Capparelli Mattoso.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
|    |
| 5. | | PLOTEGHER, F.; RIBEIRO, C. Caracterização do fertilizante superfosfato simples - um estudo sobre o efeito da moagem sobre a cinética de solubilidade. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 8, 2014, Juiz de fora. Anais... São Carlos: Embrapa Instrumentação; Campo Grande: Embrapa Gado de Corte; Juiz de Fora: Embrapa Gado de Leite, 2014. p. 395-399. Editores: Maria Alice Martins, Humberto de Mello Brandão, Marlene de Barros Coelho, Daniel Souza Corrêa, Caue Ribeiro, Luiz Henrique Capparelli Mattoso.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
| |
| 7. | | PLOTEGHER, F.; RIBEIRO, C. Caracterização de compósitos baseados em amido termoplástico e materiais de alta área superficial: zeólita e sílica coloidal. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 6., 2012, Fortaleza. Anais... São Carlos: Embrapa Instrumentação; Fortaleza: Embrapa Agroindústria Tropical, 2012. p. 168-170. Editores: Maria Alice Martins, MOrsyleide de Freitas Rosa, Men de Sá Moreira de Souza Filho, Nicodemos Moreira dos Santos Junior, Odílio Benedito Garrido de Assis, Caue Ribeiro, Luiz Henrique Capparelli Mattoso.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
| |
| 9. | | PLOTEGHER, F.; RIBEIRO, C. Moagem e caracterização de uma rocha fosfática natural (bayovar) com potencial uso para fertilização direta. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 8, 2014, Juiz de fora. Anais... São Carlos: Embrapa Instrumentação; Campo Grande: Embrapa Gado de Corte; Juiz de Fora: Embrapa Gado de Leite, 2014. p. 403-407. Editores: Maria Alice Martins, Humberto de Mello Brandão, Marlene de Barros Coelho, Daniel Souza Corrêa, Caue Ribeiro, Luiz Henrique Capparelli Mattoso.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
| |
| 20. | | PLOTEGHER, F.; RIBEIRO, C. O uso de nanopartículas de óxidos fosfatados em fertilização de solos: um estudo inicial. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 6., 2012, Fortaleza. Anais... São Carlos: Embrapa Instrumentação; Fortaleza: Embrapa Agroindústria Tropical, 2012. p. 470-472. Editores: Maria Alice Martins, MOrsyleide de Freitas Rosa, Men de Sá Moreira de Souza Filho, Nicodemos Moreira dos Santos Junior, Odílio Benedito Garrido de Assis, Caue Ribeiro, Luiz Henrique Capparelli Mattoso.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
| |
| Registros recuperados : 891 | |
|
| Expressão de busca inválida. Verifique!!! |
|
|
