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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado; Embrapa Unidades Centrais. |
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Data corrente: |
13/03/2023 |
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Data da última atualização: |
22/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
HÄRTER, A.; ANTUNES, W. R.; AZEREDO, A. A. C. de; SILVA, S. D. dos A. e; OLIVEIRA, R. A. de. |
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Afiliação: |
ADILSON HÄRTER, UNIVERSIDADE FEDERAL DO PARANÁ; WILLIAM RODRIGUES ANTUNES, CPACT; AMARO AFONSO CAMPOS DE AZEREDO, UNIVERSIDADE FEDERAL DO PARANÁ; SERGIO DELMAR DOS ANJOS E SILVA, CPACT; RICARDO AUGUSTO DE OLIVEIRA, UNIVERSIDADE FEDERAL DO PARANÁ. |
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Título: |
Early screening for cold tolerance in sugarcane breeding. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, v. 58, e02711, 2023. |
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DOI: |
https://doi. org/10.1590/S1678-3921.pab2023.v58.02711 |
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Idioma: |
Inglês |
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Notas: |
Título em português: "Screening" precoce quanto à tolerância ao frio no melhoramento de cana-de-açúcar. |
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Conteúdo: |
ABSTRACT - The objective of this work was to evaluate the efficiency of early screening in the selection of sugarcane (Saccharum spp.) families for cold tolerance in a controlled environment. Fourteen sugarcane families were evaluated for leaf damage and chlorophyll content, in a controlled environment and in the field, after cold stress. The variance components and genotypic values of the families were estimated via REML/BLUP, as well as the genetic correlations between variables and environments. The heritabilities in the narrow sense and for family averages showed values above 0.23 and 0.76, respectively, and a genetic coefficient of variation above 13%, which confirmis the existence of variability and enables selection in both environments. The genetic correlations ranged from 0.59 to 0.88 and were significant for all combinations of variables and environments. The average coincidence index for the families between environments was 60% for the selected group and 85% for the unselected group. The early screening in the first stages of selection is efficient in breeding for cold tolerance in sugarcane families.
RESUMO - O objetivo deste trabalho foi avaliar a eficiência do screening precoce na seleção de famílias de cana-de-açúcar (Saccharum spp.) quanto à tolerância ao frio em ambiente controlado. Avaliaram-se 14 famílias de cana-de-açúcar quanto ao dano foliar e ao teor de clorofila, em ambiente
controlado e em campo, após estresse por frio. Estimaram-se os componentes de variância e os valores genotípicos das famílias via REML/BLUP, bem
como as correlações genéticas entre variáveis e ambientes. As herdabilidades no sentido restrito e para médias de famílias apresentaram valores superiores a 0,23 e 0,76, respectivamente, com coeficiente de variação genético superior a 13%, o que confirma existência de variabilidade e torna possível a seleção em ambos os ambientes. As correlações genéticas variaram de 0,59 a 0,88 e foram significativas para todas as combinações de variáveis e ambientes. O índice de coincidência médio para as famílias entre ambientes foi de 60% para o grupo selecionado e de 85% para o grupo não selecionado. O ?screening? precoce, nas primeiras fases de seleção, é eficiente no melhoramento genético para tolerância ao frio em famílias de cana-de-açúcar. MenosABSTRACT - The objective of this work was to evaluate the efficiency of early screening in the selection of sugarcane (Saccharum spp.) families for cold tolerance in a controlled environment. Fourteen sugarcane families were evaluated for leaf damage and chlorophyll content, in a controlled environment and in the field, after cold stress. The variance components and genotypic values of the families were estimated via REML/BLUP, as well as the genetic correlations between variables and environments. The heritabilities in the narrow sense and for family averages showed values above 0.23 and 0.76, respectively, and a genetic coefficient of variation above 13%, which confirmis the existence of variability and enables selection in both environments. The genetic correlations ranged from 0.59 to 0.88 and were significant for all combinations of variables and environments. The average coincidence index for the families between environments was 60% for the selected group and 85% for the unselected group. The early screening in the first stages of selection is efficient in breeding for cold tolerance in sugarcane families.
RESUMO - O objetivo deste trabalho foi avaliar a eficiência do screening precoce na seleção de famílias de cana-de-açúcar (Saccharum spp.) quanto à tolerância ao frio em ambiente controlado. Avaliaram-se 14 famílias de cana-de-açúcar quanto ao dano foliar e ao teor de clorofila, em ambiente
controlado e em campo, após estresse por frio. Estimaram-se os componentes ... Mostrar Tudo |
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Thesagro: |
Cana de Açúcar; Melhoramento Genético Vegetal; Variação Genética. |
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Thesaurus Nal: |
Abiotic stress; Breeding; Saccharum; Sugarcane. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1152309/1/Early-screening-cold-2023.pdf
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Marc: |
LEADER 03282naa a2200277 a 4500
001 2152477
005 2023-03-22
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi. org/10.1590/S1678-3921.pab2023.v58.02711$2DOI
100 1 $aHÄRTER, A.
245 $aEarly screening for cold tolerance in sugarcane breeding.$h[electronic resource]
260 $c2023
500 $aTítulo em português: "Screening" precoce quanto à tolerância ao frio no melhoramento de cana-de-açúcar.
520 $aABSTRACT - The objective of this work was to evaluate the efficiency of early screening in the selection of sugarcane (Saccharum spp.) families for cold tolerance in a controlled environment. Fourteen sugarcane families were evaluated for leaf damage and chlorophyll content, in a controlled environment and in the field, after cold stress. The variance components and genotypic values of the families were estimated via REML/BLUP, as well as the genetic correlations between variables and environments. The heritabilities in the narrow sense and for family averages showed values above 0.23 and 0.76, respectively, and a genetic coefficient of variation above 13%, which confirmis the existence of variability and enables selection in both environments. The genetic correlations ranged from 0.59 to 0.88 and were significant for all combinations of variables and environments. The average coincidence index for the families between environments was 60% for the selected group and 85% for the unselected group. The early screening in the first stages of selection is efficient in breeding for cold tolerance in sugarcane families. RESUMO - O objetivo deste trabalho foi avaliar a eficiência do screening precoce na seleção de famílias de cana-de-açúcar (Saccharum spp.) quanto à tolerância ao frio em ambiente controlado. Avaliaram-se 14 famílias de cana-de-açúcar quanto ao dano foliar e ao teor de clorofila, em ambiente controlado e em campo, após estresse por frio. Estimaram-se os componentes de variância e os valores genotípicos das famílias via REML/BLUP, bem como as correlações genéticas entre variáveis e ambientes. As herdabilidades no sentido restrito e para médias de famílias apresentaram valores superiores a 0,23 e 0,76, respectivamente, com coeficiente de variação genético superior a 13%, o que confirma existência de variabilidade e torna possível a seleção em ambos os ambientes. As correlações genéticas variaram de 0,59 a 0,88 e foram significativas para todas as combinações de variáveis e ambientes. O índice de coincidência médio para as famílias entre ambientes foi de 60% para o grupo selecionado e de 85% para o grupo não selecionado. O ?screening? precoce, nas primeiras fases de seleção, é eficiente no melhoramento genético para tolerância ao frio em famílias de cana-de-açúcar.
650 $aAbiotic stress
650 $aBreeding
650 $aSaccharum
650 $aSugarcane
650 $aCana de Açúcar
650 $aMelhoramento Genético Vegetal
650 $aVariação Genética
700 1 $aANTUNES, W. R.
700 1 $aAZEREDO, A. A. C. de
700 1 $aSILVA, S. D. dos A. e
700 1 $aOLIVEIRA, R. A. de
773 $tPesquisa Agropecuária Brasileira$gv. 58, e02711, 2023.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
31/10/2013 |
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Data da última atualização: |
31/10/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
FAGERIA, N. K.; MOREIRA, A.; CASTRO, C.; MORAES, M. F. |
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Afiliação: |
NAND KUMAR FAGERIA, CNPAF; ADONIS MOREIRA, CNPSO; CESAR DE CASTRO, CNPSO; M. F. MORAES, UNIVERSIDADE FEDERAL DE MATO GROSSO, Barra do Garças. |
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Título: |
Optimal acidity indices for soybean production in brazilian oxisols. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, New York, v. 44, n. 20, p. 2941-2951, 2013. |
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ISSN: |
0010-3624 |
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DOI: |
10.1080/00103624.2013.829484 |
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Idioma: |
Inglês |
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Conteúdo: |
Soybean is an important crop for the Brazilian economy, and soil acidity is one of the main yield-limiting factors in Brazilian Oxisols. A field experiment was conducted during three consecutive years with the objective to determine soybean response to liming grown on Oxisols. Liming rates used were 0, 3, 6, 12, and 18 Mg ha−1. Liming significantly increased grain yield in a quadratic trend. Ninety percent maximum economic grain yield (2900 kg ha−1) was achieved with the application of about 6 Mg lime ha−1. Shoot dry weight, number of pods per plant, and 100-grain weight were also increased significantly in a quadratic fashion with increasing liming rate from 0 to 18 Mg ha−1. These growth and yield components had a significant positive association with grain yield. Maximum contribution in increasing grain yield was of number of pods per plant followed by grain harvest index and shoot dry weight. Uptake of nitrogen (N) was greatest and phosphorus (P) was least among macronutrients in soybean plant. Nutrient-use efficiency (kg grain per kg nutrient accumulation in grain) was maximum for magnesium (Mg) and lowest for N among macronutrients. Application of 3 Mg lime ha−1 neutralized all aluminum ions in soil solution. Optimal acidity indices for 90% of maximum yield were pH 6.0, calcium (Ca) 1.6 cmolc kg−1, Mg 0.9 cmolc kg−1, base saturation 51%, cation exchange capacity (CEC) 4.8 cmolc kg−1, Ca/Mg ratio 1.9, Ca / potassium (K) ratio 5.6, and Mg/K ratio 3.0. MenosSoybean is an important crop for the Brazilian economy, and soil acidity is one of the main yield-limiting factors in Brazilian Oxisols. A field experiment was conducted during three consecutive years with the objective to determine soybean response to liming grown on Oxisols. Liming rates used were 0, 3, 6, 12, and 18 Mg ha−1. Liming significantly increased grain yield in a quadratic trend. Ninety percent maximum economic grain yield (2900 kg ha−1) was achieved with the application of about 6 Mg lime ha−1. Shoot dry weight, number of pods per plant, and 100-grain weight were also increased significantly in a quadratic fashion with increasing liming rate from 0 to 18 Mg ha−1. These growth and yield components had a significant positive association with grain yield. Maximum contribution in increasing grain yield was of number of pods per plant followed by grain harvest index and shoot dry weight. Uptake of nitrogen (N) was greatest and phosphorus (P) was least among macronutrients in soybean plant. Nutrient-use efficiency (kg grain per kg nutrient accumulation in grain) was maximum for magnesium (Mg) and lowest for N among macronutrients. Application of 3 Mg lime ha−1 neutralized all aluminum ions in soil solution. Optimal acidity indices for 90% of maximum yield were pH 6.0, calcium (Ca) 1.6 cmolc kg−1, Mg 0.9 cmolc kg−1, base saturation 51%, cation exchange capacity (CEC) 4.8 cmolc kg−1, Ca/Mg ratio 1.9, Ca / potassium (K) rat... Mostrar Tudo |
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Thesagro: |
Acidez do solo; Fertilidade do solo; PH; Soja. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02204naa a2200229 a 4500
001 1969986
005 2013-10-31
008 2013 bl uuuu u00u1 u #d
022 $a0010-3624
024 7 $a10.1080/00103624.2013.829484$2DOI
100 1 $aFAGERIA, N. K.
245 $aOptimal acidity indices for soybean production in brazilian oxisols.$h[electronic resource]
260 $c2013
520 $aSoybean is an important crop for the Brazilian economy, and soil acidity is one of the main yield-limiting factors in Brazilian Oxisols. A field experiment was conducted during three consecutive years with the objective to determine soybean response to liming grown on Oxisols. Liming rates used were 0, 3, 6, 12, and 18 Mg ha−1. Liming significantly increased grain yield in a quadratic trend. Ninety percent maximum economic grain yield (2900 kg ha−1) was achieved with the application of about 6 Mg lime ha−1. Shoot dry weight, number of pods per plant, and 100-grain weight were also increased significantly in a quadratic fashion with increasing liming rate from 0 to 18 Mg ha−1. These growth and yield components had a significant positive association with grain yield. Maximum contribution in increasing grain yield was of number of pods per plant followed by grain harvest index and shoot dry weight. Uptake of nitrogen (N) was greatest and phosphorus (P) was least among macronutrients in soybean plant. Nutrient-use efficiency (kg grain per kg nutrient accumulation in grain) was maximum for magnesium (Mg) and lowest for N among macronutrients. Application of 3 Mg lime ha−1 neutralized all aluminum ions in soil solution. Optimal acidity indices for 90% of maximum yield were pH 6.0, calcium (Ca) 1.6 cmolc kg−1, Mg 0.9 cmolc kg−1, base saturation 51%, cation exchange capacity (CEC) 4.8 cmolc kg−1, Ca/Mg ratio 1.9, Ca / potassium (K) ratio 5.6, and Mg/K ratio 3.0.
650 $aAcidez do solo
650 $aFertilidade do solo
650 $aPH
650 $aSoja
700 1 $aMOREIRA, A.
700 1 $aCASTRO, C.
700 1 $aMORAES, M. F.
773 $tCommunications in Soil Science and Plant Analysis, New York$gv. 44, n. 20, p. 2941-2951, 2013.
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