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Registro Completo |
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
16/07/2020 |
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Data da última atualização: |
16/07/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RODRIGUES, W. N.; TOMAZ, M. A.; AMARAL, J. F. T. do; FERRAO, M. A. G.; COLODETTI, T. V.; CHRISTO, L. F. |
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Afiliação: |
WAGNER NUNES RODRIGUES, UFES; MARCELO ANTONIO TOMAZ, UFES; JOSÉ FRANCISCO TEIXEIRA DO AMARAL, UFES; MARIA AMELIA GAVA FERRAO, CNPCa; TAFAREL VICTOR COLODETTI, UFES; LEONARDO FARDIM CHRISTO, UFES. |
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Título: |
Biometrical studies on characteristics of plagiotropic branches in Coffea arabica L. cultivated with high plant density. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Australian Journal of Crop Science, v. 8, n. 8, p. 1239-1247, 2014. |
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Idioma: |
Português |
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Conteúdo: |
The great demand for improvements in productivity lead to the search of new information regarding the behaviour of new cultivars of arabica coffee. Improved genotypes need be studied in specific regions to evaluate their potential, such as the exploration on mountains, aiming to define variables that can be exploited for the study and selection of genotypes in those conditions. This study aimed to evaluate the genetic diversity of genotypes of Coffea arabica L. with the potential for cultivation in increased-density systems in the region of Caparaó (state of Espírito Santo, Brazil), based on the characteristics of plagiotropic branches in production, to evaluate the existence of correlations and to estimate the relative contributions of each of the aforementioned characteristics to the diversity. To this end, 25 characteristics were determined in 16 genotypes of arabica coffee cultivated under competition of density (evaluated in 2013, with the stabilisation of their reproductive phenological cycle). These genotypes presented considerable diversity for almost all of the traits, being possible to separate seven groups of genotypes. Among the genotypes cultivated with high plant density, IAPAR 59 and Catiguá MG2 presented a greater degree of dissimilarity. Of the 25 traits, the number of fruits per branch and the biomass contributed more to the variability among the genotypes (over 95% of accumulated contribution). A total of 111 significant correlations were observed, with values over |0.60| in 78% of cases. Strong positive and negative correlations are observed between the various characteristics, revealing the possibility of the simultaneous selection of correlated traits. MenosThe great demand for improvements in productivity lead to the search of new information regarding the behaviour of new cultivars of arabica coffee. Improved genotypes need be studied in specific regions to evaluate their potential, such as the exploration on mountains, aiming to define variables that can be exploited for the study and selection of genotypes in those conditions. This study aimed to evaluate the genetic diversity of genotypes of Coffea arabica L. with the potential for cultivation in increased-density systems in the region of Caparaó (state of Espírito Santo, Brazil), based on the characteristics of plagiotropic branches in production, to evaluate the existence of correlations and to estimate the relative contributions of each of the aforementioned characteristics to the diversity. To this end, 25 characteristics were determined in 16 genotypes of arabica coffee cultivated under competition of density (evaluated in 2013, with the stabilisation of their reproductive phenological cycle). These genotypes presented considerable diversity for almost all of the traits, being possible to separate seven groups of genotypes. Among the genotypes cultivated with high plant density, IAPAR 59 and Catiguá MG2 presented a greater degree of dissimilarity. Of the 25 traits, the number of fruits per branch and the biomass contributed more to the variability among the genotypes (over 95% of accumulated contribution). A total of 111 significant correlations were observed, with va... Mostrar Tudo |
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Thesagro: |
Análise; Coffea Arábica; Densidade de Plantio; Genótipo. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/214648/1/Biometrical-Australian-Journal-Wagner.pdf
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Marc: |
LEADER 02424naa a2200229 a 4500
001 2123884
005 2020-07-16
008 2014 bl uuuu u00u1 u #d
100 1 $aRODRIGUES, W. N.
245 $aBiometrical studies on characteristics of plagiotropic branches in Coffea arabica L. cultivated with high plant density.$h[electronic resource]
260 $c2014
520 $aThe great demand for improvements in productivity lead to the search of new information regarding the behaviour of new cultivars of arabica coffee. Improved genotypes need be studied in specific regions to evaluate their potential, such as the exploration on mountains, aiming to define variables that can be exploited for the study and selection of genotypes in those conditions. This study aimed to evaluate the genetic diversity of genotypes of Coffea arabica L. with the potential for cultivation in increased-density systems in the region of Caparaó (state of Espírito Santo, Brazil), based on the characteristics of plagiotropic branches in production, to evaluate the existence of correlations and to estimate the relative contributions of each of the aforementioned characteristics to the diversity. To this end, 25 characteristics were determined in 16 genotypes of arabica coffee cultivated under competition of density (evaluated in 2013, with the stabilisation of their reproductive phenological cycle). These genotypes presented considerable diversity for almost all of the traits, being possible to separate seven groups of genotypes. Among the genotypes cultivated with high plant density, IAPAR 59 and Catiguá MG2 presented a greater degree of dissimilarity. Of the 25 traits, the number of fruits per branch and the biomass contributed more to the variability among the genotypes (over 95% of accumulated contribution). A total of 111 significant correlations were observed, with values over |0.60| in 78% of cases. Strong positive and negative correlations are observed between the various characteristics, revealing the possibility of the simultaneous selection of correlated traits.
650 $aAnálise
650 $aCoffea Arábica
650 $aDensidade de Plantio
650 $aGenótipo
700 1 $aTOMAZ, M. A.
700 1 $aAMARAL, J. F. T. do
700 1 $aFERRAO, M. A. G.
700 1 $aCOLODETTI, T. V.
700 1 $aCHRISTO, L. F.
773 $tAustralian Journal of Crop Science$gv. 8, n. 8, p. 1239-1247, 2014.
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Registro original: |
Embrapa Café (CNPCa) |
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Origem |
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Registro |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
08/12/2022 |
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Data da última atualização: |
08/12/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
BUSATO, J. G.; SANTOS, L. F. dos; PAULA, A. M. de; SODRÉ, F. F.; DOBBSS, L. B.; MARTINS, E. de S.; JINDO, K. |
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Afiliação: |
JADER GALBA BUSATO; LUIZ FERNANDO DOS SANTOS; ALESSANDRA MONTEIRO DE PAULA; FERNANDO FABRIZ SODRÉ; LEONARDO BARROS DOBBSS; EDER DE SOUZA MARTINS, CPAC; KEIJI JINDO. |
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Título: |
Can co-application of silicate rock powder and humic-like acids increase nutrient uptake and plant growth in weathered tropical soil? |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Acta Agriculturae Scandinavica, Section B ? Soil & Plant Science, v. 72, n. 1, 2022. |
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Páginas: |
p. 761-744 |
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Idioma: |
Inglês |
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Conteúdo: |
Silicate rock powder (SRP) restores the fertility of weathered soils. However, its slow nutrientrelease is a disadvantage for short-duration crops. Humic-like acids (HLAs) are plantbiostimulants that enhance root development and nutrient uptake. This work evaluates theeffects of the co-application of HLA extracted from a vermicompost and SRP on the nutrientuptake and growth of maize cultivated in weathered soil in Brazil. The chemical composition ofHLA was assessed using Fourier-transform infrared spectroscopy and13Carbon-nuclear magneticresonance, revealing an overall characteristic of hydrophobicity. A preliminary trial with differentHLA concentrations (0, 20, 40, 80, and 160 mg L−1) revealed that 40 mg L−1HLA resulted in thehighest increase in the root area, dry root weight, H+efflux, and the number of lateral roots,compared with other concentrations. The main experiment using soil treated with SRP atdifferent rates (0, 600, 1200, 1800, and 2400 kg ha−1) showed that the co-application of SRP andHLA caused a significant difference in the root and total plant weights, compared with the soleSRP application. Furthermore, it increased the nutrient content of the plants. These effects aremainly because of increased proton pump activity and the hydrophobicity of HLA |
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Palavras-Chave: |
Ácido húmico; Bioestimulante; Pó de rocha. |
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Thesagro: |
Fósforo; Latossolo; Nutriente; Planta; Solo Tropical. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1149376/1/Eder-Can-co-application-of-silicate-rock-powder-and-humic-like-acids-increase-nutrient-uptake.pdf
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Marc: |
LEADER 02198naa a2200301 a 4500
001 2149376
005 2022-12-08
008 2022 bl uuuu u00u1 u #d
100 1 $aBUSATO, J. G.
245 $aCan co-application of silicate rock powder and humic-like acids increase nutrient uptake and plant growth in weathered tropical soil?$h[electronic resource]
260 $c2022
300 $ap. 761-744
520 $aSilicate rock powder (SRP) restores the fertility of weathered soils. However, its slow nutrientrelease is a disadvantage for short-duration crops. Humic-like acids (HLAs) are plantbiostimulants that enhance root development and nutrient uptake. This work evaluates theeffects of the co-application of HLA extracted from a vermicompost and SRP on the nutrientuptake and growth of maize cultivated in weathered soil in Brazil. The chemical composition ofHLA was assessed using Fourier-transform infrared spectroscopy and13Carbon-nuclear magneticresonance, revealing an overall characteristic of hydrophobicity. A preliminary trial with differentHLA concentrations (0, 20, 40, 80, and 160 mg L−1) revealed that 40 mg L−1HLA resulted in thehighest increase in the root area, dry root weight, H+efflux, and the number of lateral roots,compared with other concentrations. The main experiment using soil treated with SRP atdifferent rates (0, 600, 1200, 1800, and 2400 kg ha−1) showed that the co-application of SRP andHLA caused a significant difference in the root and total plant weights, compared with the soleSRP application. Furthermore, it increased the nutrient content of the plants. These effects aremainly because of increased proton pump activity and the hydrophobicity of HLA
650 $aFósforo
650 $aLatossolo
650 $aNutriente
650 $aPlanta
650 $aSolo Tropical
653 $aÁcido húmico
653 $aBioestimulante
653 $aPó de rocha
700 1 $aSANTOS, L. F. dos
700 1 $aPAULA, A. M. de
700 1 $aSODRÉ, F. F.
700 1 $aDOBBSS, L. B.
700 1 $aMARTINS, E. de S.
700 1 $aJINDO, K.
773 $tActa Agriculturae Scandinavica, Section B ? Soil & Plant Science$gv. 72, n. 1, 2022.
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