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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura; Embrapa Solos. |
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Data corrente: |
16/02/2001 |
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Data da última atualização: |
19/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BERNARDI, A. C. de C.; CARMELLO, Q. A. de C.; CARVALHO, S. A. de. |
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Afiliação: |
ALBERTO CARLOS DE CAMPOS BERNARDI, CNPS; QUIRINO AUGUSTO DE CAMARGO CARMELLO, ESALQ/USP; SÉRGIO ALVES DE CARVALHO, IAC. |
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Título: |
Macronutrientes em mudas de citros cultivadas em vasos em resposta à adubação NPK. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Scientia Agricola, v. 57, n. 4, p. 761-767, out./dez. 2000. |
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DOI: |
https://doi.org/10.1590/S0103-90162000000400026 |
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Idioma: |
Português |
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Conteúdo: |
Mudas de laranjeira 'Valência' (Citrus sinensis) sobre o porta-enxerto de limoeiro 'Cravo' (C. limonia) foram cultivadas em vasos com substrato de casca de Pinus, vermiculita e perlita com o objetivo de avaliar-se os efeitos do fornecimento de N, P e K sobre os teores de macronutrientes do porta-enxerto e das mudas. Utilizou-se um esquema de fatorial fracionário (1/5)5³ com um delineamento em blocos ao acaso. Os tratamentos consistiram em 5 doses (em g por planta) de N: 1,25; 6,25; 11,25; 16,25; 21,25; 5 doses de K: 0,42; 3,75; 6,22; 9,34; 12,45; e 5 doses de P: 0,19; 0,89; 1,59; 2,29; 2,99. O N e K foram fornecidos semanalmente, sendo 37,5% da dose para o porta-enxerto. O P foi fornecido totalmente no plantio. Determinaram-se os teores totais de N, P e K, Ca, Mg e S nas folhas novas e velhas, raízes e caule e a extração de N, P e K. Os teores de N relacionaram-se diretamente e os de P e K inversamente com a adubação nitrogenada. Os teores de Ca, Mg e S relacionaram-se positivamente até as doses intermediárias de N utilizadas. Houve efeito inibitório do fertilizante potássico sobre a absorção de Ca e Mg. A acumulação de NPK pelos porta-enxertos foi em torno de 30% pelas raízes e 70% pela parte aérea. |
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Palavras-Chave: |
Mineral nutrition; Nutricao mineral; Response function; Superficie de resposta. |
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Thesagro: |
Citrus Limonia; Citrus Sinensis. |
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Categoria do assunto: |
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P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/227038/1/Macronutrientes-em-mudas-de-citros-cultivadas-2000.pdf
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Marc: |
LEADER 01958naa a2200229 a 4500
001 2135428
005 2021-10-19
008 2000 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/S0103-90162000000400026$2DOI
100 1 $aBERNARDI, A. C. de C.
245 $aMacronutrientes em mudas de citros cultivadas em vasos em resposta à adubação NPK.
260 $c2000
520 $aMudas de laranjeira 'Valência' (Citrus sinensis) sobre o porta-enxerto de limoeiro 'Cravo' (C. limonia) foram cultivadas em vasos com substrato de casca de Pinus, vermiculita e perlita com o objetivo de avaliar-se os efeitos do fornecimento de N, P e K sobre os teores de macronutrientes do porta-enxerto e das mudas. Utilizou-se um esquema de fatorial fracionário (1/5)5³ com um delineamento em blocos ao acaso. Os tratamentos consistiram em 5 doses (em g por planta) de N: 1,25; 6,25; 11,25; 16,25; 21,25; 5 doses de K: 0,42; 3,75; 6,22; 9,34; 12,45; e 5 doses de P: 0,19; 0,89; 1,59; 2,29; 2,99. O N e K foram fornecidos semanalmente, sendo 37,5% da dose para o porta-enxerto. O P foi fornecido totalmente no plantio. Determinaram-se os teores totais de N, P e K, Ca, Mg e S nas folhas novas e velhas, raízes e caule e a extração de N, P e K. Os teores de N relacionaram-se diretamente e os de P e K inversamente com a adubação nitrogenada. Os teores de Ca, Mg e S relacionaram-se positivamente até as doses intermediárias de N utilizadas. Houve efeito inibitório do fertilizante potássico sobre a absorção de Ca e Mg. A acumulação de NPK pelos porta-enxertos foi em torno de 30% pelas raízes e 70% pela parte aérea.
650 $aCitrus Limonia
650 $aCitrus Sinensis
653 $aMineral nutrition
653 $aNutricao mineral
653 $aResponse function
653 $aSuperficie de resposta
700 1 $aCARMELLO, Q. A. de C.
700 1 $aCARVALHO, S. A. de
773 $tScientia Agricola$gv. 57, n. 4, p. 761-767, out./dez. 2000.
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Registro original: |
Embrapa Solos (CNPS) |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
11/09/2020 |
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Data da última atualização: |
25/02/2021 |
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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: |
GODDARD, R.; STEED, A.; CHINOY, C.; FERREIRA, J. R.; SCHEEREN, P. L.; MACIEL, J. L. N.; CAIERAO, E.; TORRES, G. A. M.; CONSOLI, L.; SANTANA, F. M.; FERNANDES, J. M. C.; SIMMONDS, J.; UAUY, C.; COCKRAM, J.; NICHOLSON, P. |
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Afiliação: |
RACHEL R. GODDARD, Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK; ANDREW STEED, Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK; CATHERINE CHINOY, Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK; JÉSSICA ROSSET FERREIRA, Universidade de Passo Fundo, Passo Fundo, RS, Brazil; PEDRO LUIZ SCHEEREN, CNPT; JOAO LEODATO NUNES MACIEL, CNPT; EDUARDO CAIERAO, CNPT; GISELE ABIGAIL MONTAN TORRES, CNPT; LUCIANO CONSOLI, CNPT; FLAVIO MARTINS SANTANA, CNPT; JOSE MAURICIO CUNHA FERNANDES, CNPT; James Simmonds, Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK; CRISTOBAL UAUY, Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK; James Cockram, John Bingham Laboratory, NIAB, Cambridge, UK; Paul Nicholson, Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK. |
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Título: |
Dissecting the genetic basis of wheat blast resistance in the Brazilian wheat cultivar BR 18-Terena. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
BMC Plant Biology, v. 20, n. 398, Aug. 2020. |
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DOI: |
https://doi.org/10.1186/s12870-020-02592-0 |
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Idioma: |
Inglês |
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Conteúdo: |
Background: Wheat blast, caused by Magnaporthe oryzae Triticum (MoT) pathotype, is a global threat to wheat (Triticum aestivum L.) production. Few blast resistance (R) genes have been identified to date, therefore assessing potential sources of resistance in wheat is important. The Brazilian wheat cultivar BR 18-Terena is considered one of the best sources of resistance to blast and has been widely used in Brazilian breeding programmes, however the underlying genetics of this resistance are unknown. Results: BR 18-Terena was used as the common parent in the development of two recombinant inbred line (RIL) F6 populations with the Brazilian cultivars Anahuac 75 and BRS 179. Populations were phenotyped for resistance at the seedling and heading stage using the sequenced MoT isolate BR32, with transgressive segregation being observed. Genetic maps containing 1779 and 1318 markers, were produced for the Anahuac 75 × BR 18-Terena and BR 18- Terena × BRS 179 populations, respectively. Five quantitative trait loci (QTL) associated with seedling resistance, on chromosomes 2B, 4B (2 QTL), 5A and 6A, were identified, as were four QTL associated with heading stage resistance (1A, 2B, 4A and 5A). Seedling and heading stage QTL did not co-locate, despite a significant positive correlation between these traits, indicating that resistance at these developmental stages is likely to be controlled by different genes. BR 18-Terena provided the resistant allele for six QTL, at both developmental stages, with the largest phenotypic effect conferred by a QTL being 24.8% suggesting that BR 18-Terena possesses quantitative resistance. Haplotype analysis of 100 Brazilian wheat cultivars indicates that 11.0% of cultivars already possess a BR 18-Terenalike haplotype for more than one of the identified heading stage QTL. Conclusions: This study suggests that BR 18-Terena possesses quantitative resistance to wheat blast, with nine QTL associated with resistance at either the seedling or heading stage being detected. Wheat blast resistance is also largely tissue-specific. Identification of durable quantitative resistances which can be combined with race-specific R gene-mediated resistance is critical to effectively control wheat blast. Collectively, this work facilitates markerassisted selection to develop new varieties for cultivation in regions at risk from this emerging disease. MenosBackground: Wheat blast, caused by Magnaporthe oryzae Triticum (MoT) pathotype, is a global threat to wheat (Triticum aestivum L.) production. Few blast resistance (R) genes have been identified to date, therefore assessing potential sources of resistance in wheat is important. The Brazilian wheat cultivar BR 18-Terena is considered one of the best sources of resistance to blast and has been widely used in Brazilian breeding programmes, however the underlying genetics of this resistance are unknown. Results: BR 18-Terena was used as the common parent in the development of two recombinant inbred line (RIL) F6 populations with the Brazilian cultivars Anahuac 75 and BRS 179. Populations were phenotyped for resistance at the seedling and heading stage using the sequenced MoT isolate BR32, with transgressive segregation being observed. Genetic maps containing 1779 and 1318 markers, were produced for the Anahuac 75 × BR 18-Terena and BR 18- Terena × BRS 179 populations, respectively. Five quantitative trait loci (QTL) associated with seedling resistance, on chromosomes 2B, 4B (2 QTL), 5A and 6A, were identified, as were four QTL associated with heading stage resistance (1A, 2B, 4A and 5A). Seedling and heading stage QTL did not co-locate, despite a significant positive correlation between these traits, indicating that resistance at these developmental stages is likely to be controlled by different genes. BR 18-Terena provided the resistant allele for six QTL, at both developmental... Mostrar Tudo |
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Palavras-Chave: |
Head resistance; Seedling resistance; Single nucleotide polymorphism (SNP) genotyping; Wheat blast. |
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Thesagro: |
Triticum Aestivum. |
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Thesaurus NAL: |
Genotyping; Magnaporthe oryzae; Quantitative trait loci. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/215901/1/s12870-020-02592-0.pdf
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Marc: |
LEADER 03562naa a2200397 a 4500
001 2124870
005 2021-02-25
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1186/s12870-020-02592-0$2DOI
100 1 $aGODDARD, R.
245 $aDissecting the genetic basis of wheat blast resistance in the Brazilian wheat cultivar BR 18-Terena.$h[electronic resource]
260 $c2020
520 $aBackground: Wheat blast, caused by Magnaporthe oryzae Triticum (MoT) pathotype, is a global threat to wheat (Triticum aestivum L.) production. Few blast resistance (R) genes have been identified to date, therefore assessing potential sources of resistance in wheat is important. The Brazilian wheat cultivar BR 18-Terena is considered one of the best sources of resistance to blast and has been widely used in Brazilian breeding programmes, however the underlying genetics of this resistance are unknown. Results: BR 18-Terena was used as the common parent in the development of two recombinant inbred line (RIL) F6 populations with the Brazilian cultivars Anahuac 75 and BRS 179. Populations were phenotyped for resistance at the seedling and heading stage using the sequenced MoT isolate BR32, with transgressive segregation being observed. Genetic maps containing 1779 and 1318 markers, were produced for the Anahuac 75 × BR 18-Terena and BR 18- Terena × BRS 179 populations, respectively. Five quantitative trait loci (QTL) associated with seedling resistance, on chromosomes 2B, 4B (2 QTL), 5A and 6A, were identified, as were four QTL associated with heading stage resistance (1A, 2B, 4A and 5A). Seedling and heading stage QTL did not co-locate, despite a significant positive correlation between these traits, indicating that resistance at these developmental stages is likely to be controlled by different genes. BR 18-Terena provided the resistant allele for six QTL, at both developmental stages, with the largest phenotypic effect conferred by a QTL being 24.8% suggesting that BR 18-Terena possesses quantitative resistance. Haplotype analysis of 100 Brazilian wheat cultivars indicates that 11.0% of cultivars already possess a BR 18-Terenalike haplotype for more than one of the identified heading stage QTL. Conclusions: This study suggests that BR 18-Terena possesses quantitative resistance to wheat blast, with nine QTL associated with resistance at either the seedling or heading stage being detected. Wheat blast resistance is also largely tissue-specific. Identification of durable quantitative resistances which can be combined with race-specific R gene-mediated resistance is critical to effectively control wheat blast. Collectively, this work facilitates markerassisted selection to develop new varieties for cultivation in regions at risk from this emerging disease.
650 $aGenotyping
650 $aMagnaporthe oryzae
650 $aQuantitative trait loci
650 $aTriticum Aestivum
653 $aHead resistance
653 $aSeedling resistance
653 $aSingle nucleotide polymorphism (SNP) genotyping
653 $aWheat blast
700 1 $aSTEED, A.
700 1 $aCHINOY, C.
700 1 $aFERREIRA, J. R.
700 1 $aSCHEEREN, P. L.
700 1 $aMACIEL, J. L. N.
700 1 $aCAIERAO, E.
700 1 $aTORRES, G. A. M.
700 1 $aCONSOLI, L.
700 1 $aSANTANA, F. M.
700 1 $aFERNANDES, J. M. C.
700 1 $aSIMMONDS, J.
700 1 $aUAUY, C.
700 1 $aCOCKRAM, J.
700 1 $aNICHOLSON, P.
773 $tBMC Plant Biology$gv. 20, n. 398, Aug. 2020.
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Embrapa Trigo (CNPT) |
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