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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
19/10/2004 |
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Data da última atualização: |
26/10/2004 |
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Autoria: |
MACHADO, J. R. de A.; PENNA, J. C. V.; FALLIERI, J.; SANTOS, P. G.; LANZA, M. A. |
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Título: |
Stability and adaptability of seedcotton yields of upland cotton genotypes in the state of Minas Gerais, Brazil. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Londrina, v. 2, n. 3, p. 401-409, Sept. 2002. |
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Idioma: |
Inglês |
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Conteúdo: |
Seedcotton yield of Gossypium hirsutum L. data from the regional cotton variety trials of the EPAMIG breeding program from 1990 to 1999 were analyzed with the objectives of estimating both the magnitude of genotype by environment interactions and the genotypes adaptability and stability according to the methods proposed by Eberthart and Russell, Lin and Binns and Annicchiarico; and selecting advanced lines to compose the final trials of the program. Four groups of genotypes and environments were assembled and analyzed. For the first one, significant genotype x year and genotype x location x year interactions were detected. The most stable genotypes were MG-864492 and IAC 20. Significant second-order interactions were estimated for the three remaining groups studied. In the second group the most stable strains were MG-863192 (according to Eberhart and Russell method) and MG-863579 (according to Lin & Binn's and Annicchiaric's methods). For the third genotype-environment group, the most stable genotype under all methods was MG-864133. The cultivar EPAMIG 5 Precoce-1, in the fourth group, presented stable performance also under the three methodologies tested. |
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Palavras-Chave: |
Adaptabilidade; Adaptability; Environment interactions; Estabilidade; Stability. |
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Thesagro: |
Algodão; Gossypium Hirsutum. |
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Thesaurus Nal: |
cotton; genotype. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01987naa a2200277 a 4500
001 1212602
005 2004-10-26
008 2002 bl uuuu u00u1 u #d
100 1 $aMACHADO, J. R. de A.
245 $aStability and adaptability of seedcotton yields of upland cotton genotypes in the state of Minas Gerais, Brazil.
260 $c2002
520 $aSeedcotton yield of Gossypium hirsutum L. data from the regional cotton variety trials of the EPAMIG breeding program from 1990 to 1999 were analyzed with the objectives of estimating both the magnitude of genotype by environment interactions and the genotypes adaptability and stability according to the methods proposed by Eberthart and Russell, Lin and Binns and Annicchiarico; and selecting advanced lines to compose the final trials of the program. Four groups of genotypes and environments were assembled and analyzed. For the first one, significant genotype x year and genotype x location x year interactions were detected. The most stable genotypes were MG-864492 and IAC 20. Significant second-order interactions were estimated for the three remaining groups studied. In the second group the most stable strains were MG-863192 (according to Eberhart and Russell method) and MG-863579 (according to Lin & Binn's and Annicchiaric's methods). For the third genotype-environment group, the most stable genotype under all methods was MG-864133. The cultivar EPAMIG 5 Precoce-1, in the fourth group, presented stable performance also under the three methodologies tested.
650 $acotton
650 $agenotype
650 $aAlgodão
650 $aGossypium Hirsutum
653 $aAdaptabilidade
653 $aAdaptability
653 $aEnvironment interactions
653 $aEstabilidade
653 $aStability
700 1 $aPENNA, J. C. V.
700 1 $aFALLIERI, J.
700 1 $aSANTOS, P. G.
700 1 $aLANZA, M. A.
773 $tCrop Breeding and Applied Biotechnology, Londrina$gv. 2, n. 3, p. 401-409, Sept. 2002.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
18/10/2018 |
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Data da última atualização: |
25/02/2019 |
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Autoria: |
YAGI, R. |
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Afiliação: |
Renato Yagi, Instituto Agronômico do Paraná - IAPAR/Polo Regional de Pesquisa de Ponta Grossa. |
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Título: |
Occasional soil tillage, liming, and nitrogen fertilization on long-term no-tillage system. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 7, p. 833-839, July, 2018. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Revolvimento ocasional do solo, calagem e adubação nitrogenada sobre sistema plantio direto de longa duração. |
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Conteúdo: |
The objective of this work was to evaluate the residual effects of occasional soil tillage in a 17-year‑old, no-tillage system, associated with liming and nitrogen fertilization, on the crop yields and chemical properties of a very clayey Oxisol in the South of Brazil. A randomized complete block design in split-split plots was used, with two soil managements (with or without plowing), two liming treatments (with or without the required dose to raise base saturation to 70%), five N doses applied on side-dress (0, 1, 2, 4, and 6 times the recommended amounts), and four replicates. A rotation system was used with corn and soybean in the summer, and with wheat and black oats in the winter. The residual effects of occasional soil tillage in a consolidated no-tillage system do not supplant those of liming applied on soil surface, in periods of water deficit, which subsidizes the recommendation to maintain the system consolidated. Excess N fertilization in no-tillage, with liming applied only on soil surface, may harm wheat yield, acidifying the topsoil and leaching Mg2+ to the subsurface soil layers. Without liming, soil acidification is more intense with N fertilization, which, however, favors the accumulation of organic matter on soil surface in a consolidated no-tillage system. |
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Palavras-Chave: |
Calagem superficial; Consolidated no-tillage system; Deficit hídrido; Matéria orgânica do solo; Plantio direto consolidado; Soil acidity; Superficial liming. |
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Thesagro: |
Acidez do Solo; Manejo do Solo. |
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Thesaurus NAL: |
Soil management; Soil organic matter; Soil water deficit. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/184596/1/Occasional-soil-tillage.pdf
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Marc: |
LEADER 02305naa a2200277 a 4500
001 2097695
005 2019-02-25
008 2018 bl uuuu u00u1 u #d
100 1 $aYAGI, R.
245 $aOccasional soil tillage, liming, and nitrogen fertilization on long-term no-tillage system.$h[electronic resource]
260 $c2018
500 $aTítulo em português: Revolvimento ocasional do solo, calagem e adubação nitrogenada sobre sistema plantio direto de longa duração.
520 $aThe objective of this work was to evaluate the residual effects of occasional soil tillage in a 17-year‑old, no-tillage system, associated with liming and nitrogen fertilization, on the crop yields and chemical properties of a very clayey Oxisol in the South of Brazil. A randomized complete block design in split-split plots was used, with two soil managements (with or without plowing), two liming treatments (with or without the required dose to raise base saturation to 70%), five N doses applied on side-dress (0, 1, 2, 4, and 6 times the recommended amounts), and four replicates. A rotation system was used with corn and soybean in the summer, and with wheat and black oats in the winter. The residual effects of occasional soil tillage in a consolidated no-tillage system do not supplant those of liming applied on soil surface, in periods of water deficit, which subsidizes the recommendation to maintain the system consolidated. Excess N fertilization in no-tillage, with liming applied only on soil surface, may harm wheat yield, acidifying the topsoil and leaching Mg2+ to the subsurface soil layers. Without liming, soil acidification is more intense with N fertilization, which, however, favors the accumulation of organic matter on soil surface in a consolidated no-tillage system.
650 $aSoil management
650 $aSoil organic matter
650 $aSoil water deficit
650 $aAcidez do Solo
650 $aManejo do Solo
653 $aCalagem superficial
653 $aConsolidated no-tillage system
653 $aDeficit hídrido
653 $aMatéria orgânica do solo
653 $aPlantio direto consolidado
653 $aSoil acidity
653 $aSuperficial liming
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 53, n. 7, p. 833-839, July, 2018.
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Embrapa Unidades Centrais (AI-SEDE) |
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