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Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
06/06/2013 |
Data da última atualização: |
10/11/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MONDO, V. H. V.; CICERO, S. M.; DOURADO-NETO, D.; PUPIM, T. L.; DIAS, M. A. N. |
Afiliação: |
VITOR HENRIQUE VAZ MONDO, CNPAF; SILVIO MOURE CICERO, ESALQ; DURVAL DOURADO-NETO, ESALQ; TÚLIO LOURENÇO PUPIM, ESALQ; MARCOS ALTOMANI NEVES DIAS, ESALQ. |
Título: |
Seed vigor and initial growth of corn crop. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
Revista Brasileira de Sementes, v. 35, n. 1 p. 64-69, 2013. |
Idioma: |
Inglês |
Conteúdo: |
Seed vigor is a characteristic that determines potential for fast and uniform seedling emergence and establishment of crops. Such characteristic defines crop initial growth what could have direct and indirect effects on capacity of plants in capturing natural nutritive resources and intervene in their competition intra- and interspecific. Aiming at identifying and understanding the possible effects of seed vigor on crop initial growth a field experiment was performed during two years at University of São Paulo, Piracicaba, SP, Brazil; using two seed lots at each year, which were previously characterized by tests of physiological potential as high and low vigor. Thus, five different ratios (100:0, 75:25, 50:50, 25:75, and 0:100) of seeds originating from seed lots with higher or lower vigor were used. Assessments were performed at the phenological stages of four and eight leaves by assessing plant height, stem diameter, and leaf area index. It was also observed that mean values for all variables assessed have increased according to increase of seeds with high vigor at planting row. Therefore, it is concluded that increased percentage of seeds with high vigor results in greater initial growth of cron crop until phenological stage of eight leaves. |
Thesagro: |
Erva daninha; Milho; Semente; Zea mays. |
Thesaurus Nal: |
Corn; Crop-weed competition. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/84115/1/seed.pdf
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Marc: |
LEADER 01898naa a2200241 a 4500 001 1959476 005 2022-11-10 008 2013 bl uuuu u00u1 u #d 100 1 $aMONDO, V. H. V. 245 $aSeed vigor and initial growth of corn crop.$h[electronic resource] 260 $c2013 520 $aSeed vigor is a characteristic that determines potential for fast and uniform seedling emergence and establishment of crops. Such characteristic defines crop initial growth what could have direct and indirect effects on capacity of plants in capturing natural nutritive resources and intervene in their competition intra- and interspecific. Aiming at identifying and understanding the possible effects of seed vigor on crop initial growth a field experiment was performed during two years at University of São Paulo, Piracicaba, SP, Brazil; using two seed lots at each year, which were previously characterized by tests of physiological potential as high and low vigor. Thus, five different ratios (100:0, 75:25, 50:50, 25:75, and 0:100) of seeds originating from seed lots with higher or lower vigor were used. Assessments were performed at the phenological stages of four and eight leaves by assessing plant height, stem diameter, and leaf area index. It was also observed that mean values for all variables assessed have increased according to increase of seeds with high vigor at planting row. Therefore, it is concluded that increased percentage of seeds with high vigor results in greater initial growth of cron crop until phenological stage of eight leaves. 650 $aCorn 650 $aCrop-weed competition 650 $aErva daninha 650 $aMilho 650 $aSemente 650 $aZea mays 700 1 $aCICERO, S. M. 700 1 $aDOURADO-NETO, D. 700 1 $aPUPIM, T. L. 700 1 $aDIAS, M. A. N. 773 $tRevista Brasileira de Sementes$gv. 35, n. 1 p. 64-69, 2013.
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Embrapa Arroz e Feijão (CNPAF) |
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Registro Completo
Biblioteca(s): |
Embrapa Café. |
Data corrente: |
20/01/2022 |
Data da última atualização: |
20/01/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
EVANGELISTA, J. S. P. C.; PEIXOTO, M. A.; COELHO, I. F.; ALVES, R. S.; SILVA, F. F. e; RESENDE, M. D. V. de; SILVA, F. L. da; BHERING, L. L. |
Afiliação: |
JENIFFER SANTANA PINTO COELHO EVANGELISTA, UFV; MARCO ANTÔNIO PEIXOTO, UFV; IGOR FERREIRA COELHO, UFV; RODRIGO SILVA ALVES, UFV; FABYANO FONSECA E SILVA, UFV; MARCOS DEON VILELA DE RESENDE, CNPCa; FELIPE LOPES DA SILVA, UFV; LEONARDO LOPES BHERING, UFV. |
Título: |
Environmental stratification and genotype recommendation toward the soybean ideotype: a Bayesian approach. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, v. 21, n. 1, e359721111, 2021. |
DOI: |
https://doi.org/10.1590/1984-70332021v21n1a11 |
Idioma: |
Inglês |
Conteúdo: |
The genotype × environment (G×E) interaction plays an essential role in phenotypic expression and can lead to difficulties in genotypes recommendation. Thus, the objectives of this study were: i) propose the Multi-Environment Index Based on Factor Analysis and Ideotype-Design/Markov Chain Monte Carlo (FAI/MCMC index), and ii) apply it for soybean genotypes recommendation. To this end, a data set with 30 soybean genotypes evaluated in 10 environments for grain yield trait was used. Variance components, genetic parameters and genetic values were estimated through MCMC algorithm. Environmental stratification was conducted by factor analyses and the selection of soybean genotypes was performed using the FAI/MCMC index. The results indicated the existence of genotypic variability and G×E interaction. The environments were grouped into three factors. The predicted genetic gains from indirect selection was 4.81%. Thus, our results suggest that the FAI/MCMC index can be successfully used in soybean breeding. |
Thesagro: |
Genótipo; Glycine Soja; Soja. |
Thesaurus NAL: |
Bayesian theory; Genotype; Seed stratification; Soybeans. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/230409/1/environmental-stratification-and-genotype.pdf
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Marc: |
LEADER 01935naa a2200301 a 4500 001 2139213 005 2022-01-20 008 2021 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1590/1984-70332021v21n1a11$2DOI 100 1 $aEVANGELISTA, J. S. P. C. 245 $aEnvironmental stratification and genotype recommendation toward the soybean ideotype$ba Bayesian approach.$h[electronic resource] 260 $c2021 520 $aThe genotype × environment (G×E) interaction plays an essential role in phenotypic expression and can lead to difficulties in genotypes recommendation. Thus, the objectives of this study were: i) propose the Multi-Environment Index Based on Factor Analysis and Ideotype-Design/Markov Chain Monte Carlo (FAI/MCMC index), and ii) apply it for soybean genotypes recommendation. To this end, a data set with 30 soybean genotypes evaluated in 10 environments for grain yield trait was used. Variance components, genetic parameters and genetic values were estimated through MCMC algorithm. Environmental stratification was conducted by factor analyses and the selection of soybean genotypes was performed using the FAI/MCMC index. The results indicated the existence of genotypic variability and G×E interaction. The environments were grouped into three factors. The predicted genetic gains from indirect selection was 4.81%. Thus, our results suggest that the FAI/MCMC index can be successfully used in soybean breeding. 650 $aBayesian theory 650 $aGenotype 650 $aSeed stratification 650 $aSoybeans 650 $aGenótipo 650 $aGlycine Soja 650 $aSoja 700 1 $aPEIXOTO, M. A. 700 1 $aCOELHO, I. F. 700 1 $aALVES, R. S. 700 1 $aSILVA, F. F. e 700 1 $aRESENDE, M. D. V. de 700 1 $aSILVA, F. L. da 700 1 $aBHERING, L. L. 773 $tCrop Breeding and Applied Biotechnology$gv. 21, n. 1, e359721111, 2021.
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