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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
07/02/2014 |
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Data da última atualização: |
09/11/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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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; UFMT. |
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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, v. 44, n. 20, p. 2941-2951, Oct. 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. |
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Thesagro: |
Acidez do solo; Manejo do solo; Soja; Solo ácido. |
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Thesaurus Nal: |
Acid soils; Soybeans. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02184naa a2200253 a 4500
001 1979079
005 2015-11-09
008 2013 bl --- 0-- 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.
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 $aAcid soils
650 $aSoybeans
650 $aAcidez do solo
650 $aManejo do solo
650 $aSoja
650 $aSolo ácido
700 1 $aMOREIRA, A.
700 1 $aCASTRO, C.
700 1 $aMORAES, M. F.
773 $tCommunications in Soil Science and Plant Analysis$gv. 44, n. 20, p. 2941-2951, Oct. 2013.
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Registro original: |
Embrapa Soja (CNPSO) |
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
24/08/2018 |
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Data da última atualização: |
20/11/2018 |
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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: |
SOUZA, L. M. de; SANTOS, L. H. B. dos; ROSA, J. R. B. F.; SILVA, C. C. da; MANTELLO, C. C.; CONSON, A. R. O.; SCALOPPI JUNIOR, E. J.; FIALHO, J. de F.; MORAES, M. L. T. de; GONÇALVES, P. de S.; MARGARIDO, G. R. A.; GARCIA, A. A. F.; LE GUEN, V.; SOUZA, A. P. de. |
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Afiliação: |
LIVIA M. DE SOUZA, UNICAMP; LUCIANO H. B. DOS SANTOS, UNICAMP; JOÃO R. B. F. ROSA, USP/ESALQ; CARLA C. DA SILVA, UNICAMP; CAMILA C. MANTELLO, UNICAMP; ANDRE R. O. CONSON, UNICAMP; ERIVALDO J. SCALOPPI JUNIOR, IAC; JOSEFINO DE FREITAS FIALHO, CPAC; MARIO LUIZ T. DE MORAES, UNESP; PAULO DE S. GONÇALVES, IAC; GABRIEL R. A. MARGARIDO, USP/ESALQ; ANTONIO A. F. GARCIA, USP/ESALQ; VINCENT LE GUEN, CIRAD; ANETE P. DE SOUZA, UNICAMP. |
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Título: |
Linkage disequilibrium and population structure in wild and cultivated populations of rubber tree (Hevea brasiliensis). |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Frontiers in Plant Science, v. 9, article 815, 03 July 2018. |
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DOI: |
https://doi.org/10.3389/fpls.2018.00815 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Among rubber tree species, which belong to the Hevea genus of the Euphorbiaceae family, Hevea brasiliensis (Willd. ex Adr.de Juss.) Muell. Arg. is the main commercial source of natural rubber production worldwide. Knowledge of the population structure and linkage disequilibrium (LD) of this species is essential for the efficient organization and exploitation of genetic resources. Here, we obtained single-nucleotide polymorphisms (SNPs) using a genotyping-by-sequencing (GBS) approach and then employed the SNPs for the following objectives: (i) to identify the positions of SNPs on a genetic map of a segregating mapping population, (ii) to evaluate the population structure of a germplasm collection, and (iii) to detect patterns of LD decay among chromosomes for future genetic association studies in rubber tree. A total of 626 genotypes, including both germplasm accessions (368) and individuals from a genetic mapping population (254), were genotyped. A total of 77,660 and 21,283 SNPs were detected by GBS in the germplasm and mapping populations, respectively. The mapping population, which was previously mapped, was constructed with 1,062 markers, among which only 576 SNPs came from GBS, reducing the average interval between two adjacent markers to 4.4 cM. SNPs from GBS genotyping were used for the analysis of genetic structure and LD estimation in the germplasm accessions. Two groups, which largely corresponded to the cultivated and wild populations, were detected using STRUCTURE and via principal coordinate analysis. LD analysis, also using the mapped SNPs, revealed that non-random associations varied along chromosomes, with regions of high LD interspersed with regions of low LD. Considering the length of the genetic map (4,693 cM) and the mean LD (0.49 for cultivated and 0.02 for wild populations), a large number of evenly spaced SNPs would be needed to perform genome-wide association studies in rubber tree, and the wilder the genotypes used, the more difficult the mapping saturation. MenosAbstract: Among rubber tree species, which belong to the Hevea genus of the Euphorbiaceae family, Hevea brasiliensis (Willd. ex Adr.de Juss.) Muell. Arg. is the main commercial source of natural rubber production worldwide. Knowledge of the population structure and linkage disequilibrium (LD) of this species is essential for the efficient organization and exploitation of genetic resources. Here, we obtained single-nucleotide polymorphisms (SNPs) using a genotyping-by-sequencing (GBS) approach and then employed the SNPs for the following objectives: (i) to identify the positions of SNPs on a genetic map of a segregating mapping population, (ii) to evaluate the population structure of a germplasm collection, and (iii) to detect patterns of LD decay among chromosomes for future genetic association studies in rubber tree. A total of 626 genotypes, including both germplasm accessions (368) and individuals from a genetic mapping population (254), were genotyped. A total of 77,660 and 21,283 SNPs were detected by GBS in the germplasm and mapping populations, respectively. The mapping population, which was previously mapped, was constructed with 1,062 markers, among which only 576 SNPs came from GBS, reducing the average interval between two adjacent markers to 4.4 cM. SNPs from GBS genotyping were used for the analysis of genetic structure and LD estimation in the germplasm accessions. Two groups, which largely corresponded to the cultivated and wild populations, were detected usin... Mostrar Tudo |
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Thesagro: |
Comportamento de Variedade; Hevea Brasiliensis; População de Planta; Seringueira; Variação Genética. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/181926/1/DL-Hevea-brasiliensis-Livia-public-Frontiers-3.07.2018apagar.pdf
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Marc: |
LEADER 03139naa a2200349 a 4500
001 2094508
005 2018-11-20
008 2018 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3389/fpls.2018.00815$2DOI
100 1 $aSOUZA, L. M. de
245 $aLinkage disequilibrium and population structure in wild and cultivated populations of rubber tree (Hevea brasiliensis).$h[electronic resource]
260 $c2018
520 $aAbstract: Among rubber tree species, which belong to the Hevea genus of the Euphorbiaceae family, Hevea brasiliensis (Willd. ex Adr.de Juss.) Muell. Arg. is the main commercial source of natural rubber production worldwide. Knowledge of the population structure and linkage disequilibrium (LD) of this species is essential for the efficient organization and exploitation of genetic resources. Here, we obtained single-nucleotide polymorphisms (SNPs) using a genotyping-by-sequencing (GBS) approach and then employed the SNPs for the following objectives: (i) to identify the positions of SNPs on a genetic map of a segregating mapping population, (ii) to evaluate the population structure of a germplasm collection, and (iii) to detect patterns of LD decay among chromosomes for future genetic association studies in rubber tree. A total of 626 genotypes, including both germplasm accessions (368) and individuals from a genetic mapping population (254), were genotyped. A total of 77,660 and 21,283 SNPs were detected by GBS in the germplasm and mapping populations, respectively. The mapping population, which was previously mapped, was constructed with 1,062 markers, among which only 576 SNPs came from GBS, reducing the average interval between two adjacent markers to 4.4 cM. SNPs from GBS genotyping were used for the analysis of genetic structure and LD estimation in the germplasm accessions. Two groups, which largely corresponded to the cultivated and wild populations, were detected using STRUCTURE and via principal coordinate analysis. LD analysis, also using the mapped SNPs, revealed that non-random associations varied along chromosomes, with regions of high LD interspersed with regions of low LD. Considering the length of the genetic map (4,693 cM) and the mean LD (0.49 for cultivated and 0.02 for wild populations), a large number of evenly spaced SNPs would be needed to perform genome-wide association studies in rubber tree, and the wilder the genotypes used, the more difficult the mapping saturation.
650 $aComportamento de Variedade
650 $aHevea Brasiliensis
650 $aPopulação de Planta
650 $aSeringueira
650 $aVariação Genética
700 1 $aSANTOS, L. H. B. dos
700 1 $aROSA, J. R. B. F.
700 1 $aSILVA, C. C. da
700 1 $aMANTELLO, C. C.
700 1 $aCONSON, A. R. O.
700 1 $aSCALOPPI JUNIOR, E. J.
700 1 $aFIALHO, J. de F.
700 1 $aMORAES, M. L. T. de
700 1 $aGONÇALVES, P. de S.
700 1 $aMARGARIDO, G. R. A.
700 1 $aGARCIA, A. A. F.
700 1 $aLE GUEN, V.
700 1 $aSOUZA, A. P. de
773 $tFrontiers in Plant Science$gv. 9, article 815, 03 July 2018.
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