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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
06/03/2008 |
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Data da última atualização: |
26/01/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RESENDE, R. M. S.; RESENDE, M. D. V. de; VALLE, C. B. do; JANK, L.; TORRES JÚNIOR, R. A. de A.; CANÇADO, L. J. |
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Afiliação: |
Rosangela Maria Simeão Resende, Embrapa Gado de Corte; Marcos Deon Vilela de Resende, Embrapa Florestas; Cacilda Borges do Valle, Embrapa Gado de Corte; Liana Jank, Embrapa Gado de Corte; Roberto Augusto de Almeida Torres Júnior, Embrapa Gado de Corte; Letícia Jungmann Cançado, Embrapa Gado de Corte. |
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Título: |
Selection efficiency in Brachiaria hybrids using a posteriori blocking. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 7, p. 296-303, 2007. |
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Idioma: |
Inglês |
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Conteúdo: |
This paper compares the efficiency of Brachiaria hybrid clone selection by either traditional analysis or a posteriori blocking, to adequately consider the effect oflower competition in the border rows ofthe experimental plots (border effect). Results demonstrated that a posteriori blocking improved selection and the reliability ofthe genotypic evaluation. Of the ten best clones. four did not coincide in the two approaches. The ranking was altered as well, which demonstrated that the indication of the five best clones. selected to proceed to pasture trials based on the traditional evaluation, was misleading. This paper confirms the usefulness of a posteriori blocking. Furthermore, the results revealed lhe need to impose more effective competition on plants in the border rows to avoid erroneous selection when conducting evaluations for agronomic performance in Brachiaria trials. |
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Palavras-Chave: |
Competição; REML-BLUP; Repetibilidade. |
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Thesagro: |
Brachiaria; Gramínea; Parâmetro Genético. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/32980/1/Selection-efficiency-in-Brachiaria.pdf
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Marc: |
LEADER 01612naa a2200253 a 4500
001 1314035
005 2016-01-26
008 2007 bl uuuu u00u1 u #d
100 1 $aRESENDE, R. M. S.
245 $aSelection efficiency in Brachiaria hybrids using a posteriori blocking.
260 $c2007
520 $aThis paper compares the efficiency of Brachiaria hybrid clone selection by either traditional analysis or a posteriori blocking, to adequately consider the effect oflower competition in the border rows ofthe experimental plots (border effect). Results demonstrated that a posteriori blocking improved selection and the reliability ofthe genotypic evaluation. Of the ten best clones. four did not coincide in the two approaches. The ranking was altered as well, which demonstrated that the indication of the five best clones. selected to proceed to pasture trials based on the traditional evaluation, was misleading. This paper confirms the usefulness of a posteriori blocking. Furthermore, the results revealed lhe need to impose more effective competition on plants in the border rows to avoid erroneous selection when conducting evaluations for agronomic performance in Brachiaria trials.
650 $aBrachiaria
650 $aGramínea
650 $aParâmetro Genético
653 $aCompetição
653 $aREML-BLUP
653 $aRepetibilidade
700 1 $aRESENDE, M. D. V. de
700 1 $aVALLE, C. B. do
700 1 $aJANK, L.
700 1 $aTORRES JÚNIOR, R. A. de A.
700 1 $aCANÇADO, L. J.
773 $tCrop Breeding and Applied Biotechnology, Viçosa, MG$gv. 7, p. 296-303, 2007.
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Registro original: |
Embrapa Florestas (CNPF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
06/11/2023 |
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Data da última atualização: |
06/11/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BUTZKE, A. G.; BRITO, R. S. de; ANDRADE NETO, R. de C.; LUNZ, A. M. P.; FIUZA, S. da S.; ANDRADE, R. A. |
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Afiliação: |
ANGELITA GUDE BUTZKE, UNIVERSIDADE FEDERAL DO ACRE; RYCHAELLEN SILVA DE BRITO, UNIVERSIADE FEDERAL DO ACRE; ROMEU DE CARVALHO ANDRADE NETO, CPAF-AC; AURENY MARIA PEREIRA LUNZ, CPAF-AC; SERGIO DA SILVA FIUZA, UNIVERSIDADE FEDERAL DO ACRE; REGINALDO ALMEIDA ANDRADE, UNIVERSIDADE FEDERAL DE RONDÔNIA. |
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Título: |
Production of Euterpe precatoria Mart. seedlings in response to different dosages of nitrogen and potassium. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Comunicata Scientiae, v. 14, e4000, 2023. |
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ISSN: |
2177-5133 |
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DOI: |
https://doi.org/10.14295/cs.v14.4000 |
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Idioma: |
Português |
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Conteúdo: |
The success of açaí establishment as a monoculture is associated with the care regarding seedling quality and health. From this perspective, this study aimed to evaluate the influence of nitrogen and potassium to produce seedlings of Euterpe precatoria Mart. The experiment was set up in a randomized block design in a 5x5 factorial arrangement, with the first factor corresponding to nitrogen levels (0, 15, 30, 45, and 60 mg dm-3 of N) and the second factor consisting of the potassium levels (0, 40, 80, 120, and 160 mg dm-3 of K), aplit into 20, 40, and 40% of the total dosage. The following were evaluated 300 days after harvesting: seedling height, stem diameter, number of active leaves, dry root, shoot, and total mass, and the Dickson Quality Index. The data were subjected to univariate analysis and then to regression analysis. A significant effect was observed only for the N levels, with a positive linear response on all variables analyzed. Thus, the nitrogen levels influenced the growth and quality of E. precatoria seedlings 300 days after transplanting. Potassium fertilization for E. precatoria seedlings during the nursery phase was not responsive to any variable. In addition, there was no effect of the interaction between the N and K levels on the growth of E. precatoria seedlings 300 days after transplanting, and seedlings subjected to increasing nitrogen levels were responsive, showing good morphological attributes |
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Palavras-Chave: |
Acre; Amazonia Occidental; Amazônia Ocidental; Assai palm; Cultivos de viveros; Embrapa Acre; Fertilizantes de nitrógeno; Fertilizantes fosforados; Granjas de demostración; Producción de plántulas; Rio Branco (AC); Western Amazon. |
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Thesagro: |
Açaí; Adubação; Campo Experimental; Fertilizante Fosfatado; Fertilizante Nitrogenado; Produção; Semente; Viveiro. |
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Thesaurus NAL: |
Demonstration farms; Euterpe precatoria; Nitrogen fertilizers; Nursery crops; Phosphorus fertilizers; Seedling production. |
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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/doc/1157800/1/27555.pdf
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Marc: |
LEADER 02960naa a2200517 a 4500
001 2157800
005 2023-11-06
008 2023 bl uuuu u00u1 u #d
022 $a2177-5133
024 7 $ahttps://doi.org/10.14295/cs.v14.4000$2DOI
100 1 $aBUTZKE, A. G.
245 $aProduction of Euterpe precatoria Mart. seedlings in response to different dosages of nitrogen and potassium.$h[electronic resource]
260 $c2023
520 $aThe success of açaí establishment as a monoculture is associated with the care regarding seedling quality and health. From this perspective, this study aimed to evaluate the influence of nitrogen and potassium to produce seedlings of Euterpe precatoria Mart. The experiment was set up in a randomized block design in a 5x5 factorial arrangement, with the first factor corresponding to nitrogen levels (0, 15, 30, 45, and 60 mg dm-3 of N) and the second factor consisting of the potassium levels (0, 40, 80, 120, and 160 mg dm-3 of K), aplit into 20, 40, and 40% of the total dosage. The following were evaluated 300 days after harvesting: seedling height, stem diameter, number of active leaves, dry root, shoot, and total mass, and the Dickson Quality Index. The data were subjected to univariate analysis and then to regression analysis. A significant effect was observed only for the N levels, with a positive linear response on all variables analyzed. Thus, the nitrogen levels influenced the growth and quality of E. precatoria seedlings 300 days after transplanting. Potassium fertilization for E. precatoria seedlings during the nursery phase was not responsive to any variable. In addition, there was no effect of the interaction between the N and K levels on the growth of E. precatoria seedlings 300 days after transplanting, and seedlings subjected to increasing nitrogen levels were responsive, showing good morphological attributes
650 $aDemonstration farms
650 $aEuterpe precatoria
650 $aNitrogen fertilizers
650 $aNursery crops
650 $aPhosphorus fertilizers
650 $aSeedling production
650 $aAçaí
650 $aAdubação
650 $aCampo Experimental
650 $aFertilizante Fosfatado
650 $aFertilizante Nitrogenado
650 $aProdução
650 $aSemente
650 $aViveiro
653 $aAcre
653 $aAmazonia Occidental
653 $aAmazônia Ocidental
653 $aAssai palm
653 $aCultivos de viveros
653 $aEmbrapa Acre
653 $aFertilizantes de nitrógeno
653 $aFertilizantes fosforados
653 $aGranjas de demostración
653 $aProducción de plántulas
653 $aRio Branco (AC)
653 $aWestern Amazon
700 1 $aBRITO, R. S. de
700 1 $aANDRADE NETO, R. de C.
700 1 $aLUNZ, A. M. P.
700 1 $aFIUZA, S. da S.
700 1 $aANDRADE, R. A.
773 $tComunicata Scientiae$gv. 14, e4000, 2023.
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Registro original: |
Embrapa Acre (CPAF-AC) |
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