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Registro Completo |
Biblioteca(s): |
Embrapa Meio Norte / UEP-Parnaíba. |
Data corrente: |
11/06/1997 |
Data da última atualização: |
11/06/1997 |
Autoria: |
ELMSTROM, G. W.; FISKELL, J. G. A.; MARTIN, F. G. |
Título: |
Nutrient distribution in soil and watermelon plant uptake: effect of fertilizer timing, rate, and placement. |
Ano de publicação: |
1973 |
Fonte/Imprenta: |
Soil Crop Science Society fol Florida Proceedings, v.32, p.154-158, 1973. |
Idioma: |
Inglês |
Conteúdo: |
Soil and tissue samples were taken just prior to layby and at harvest of watermelon from fertilizer trials on Astatula fine sand, a typic Quartzipmment, near Leesburg in 1969 and 1970. Soil concentration of fertilizer nutrients sampled at the center of the bed at layby was higher when 75% of the fertilizer was applied preplant than when 50% was applied preplant but tissue composition at layby and at harvest was not affected by the timing of fertilizer application. Better recovery of fertilizer salt occurred when fertilizer was broadcast than when banded. Tissue K and Ca generally were higher when preplant fertilizer was broadcast and tissue P tended to be higher when preplant fertilizer was banded. Tissue N, P, and K tended to be higher when higherrates of the respective nutrients were applied. An antagonistic effect of soil K on plant absorption of Ca and Mg was found. |
Palavras-Chave: |
Fertilizer; Parcelamento; Placement; Uptake; Watermelon. |
Thesagro: |
Absorção; Citrullus Lanatus; Fertilizante; Melancia. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01600naa a2200253 a 4500 001 1078870 005 1997-06-11 008 1973 bl --- 0-- u #d 100 1 $aELMSTROM, G. W. 245 $aNutrient distribution in soil and watermelon plant uptake$beffect of fertilizer timing, rate, and placement. 260 $c1973 520 $aSoil and tissue samples were taken just prior to layby and at harvest of watermelon from fertilizer trials on Astatula fine sand, a typic Quartzipmment, near Leesburg in 1969 and 1970. Soil concentration of fertilizer nutrients sampled at the center of the bed at layby was higher when 75% of the fertilizer was applied preplant than when 50% was applied preplant but tissue composition at layby and at harvest was not affected by the timing of fertilizer application. Better recovery of fertilizer salt occurred when fertilizer was broadcast than when banded. Tissue K and Ca generally were higher when preplant fertilizer was broadcast and tissue P tended to be higher when preplant fertilizer was banded. Tissue N, P, and K tended to be higher when higherrates of the respective nutrients were applied. An antagonistic effect of soil K on plant absorption of Ca and Mg was found. 650 $aAbsorção 650 $aCitrullus Lanatus 650 $aFertilizante 650 $aMelancia 653 $aFertilizer 653 $aParcelamento 653 $aPlacement 653 $aUptake 653 $aWatermelon 700 1 $aFISKELL, J. G. A. 700 1 $aMARTIN, F. G. 773 $tSoil Crop Science Society fol Florida Proceedings$gv.32, p.154-158, 1973.
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Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
15/01/2024 |
Data da última atualização: |
15/01/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 2 |
Autoria: |
SOUZA, M. D. H. de; SÁ, J. F. de; MENDES, M. I. de S.; VILA VERDE, D. dos S.; SANTOS, K. C. F. dos; COSTA, M. A. P. de C.; SOUZA, A. da S. |
Afiliação: |
MARCUS DHILERMANDO HORA DE SOUZA, UNIVERSIDADE FEDERAL DE VIÇOSA; JUCIENY FERREIRA DE SÁ, UNIVERSIDADE FEDERAL DO RECÔNCAVO DA BAHIA; MARIA INÊS DE SOUZA MENDES; DENISE DOS SANTOS VILA VERDE, UNIVERSIDADE ESTADUAL DE SANTA CRUZ; KAREN CRISTINA FIALHO DOS SANTOS, CNPMF; MARIA ANGÉLICA PEREIRA DE CARVALHO COSTA, UNIVERSIDADE FEDERAL DO RECÔNCAVO DA BAHIA; ANTONIO DA SILVA SOUZA, CNPMF. |
Título: |
Paclobutrazol in the in vitro conservation of cassava genotypes. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Acta Scientiarum. Biological Sciences, v. 45, e66883, 2023. |
Páginas: |
11 p. |
Idioma: |
Inglês |
Conteúdo: |
ABSTRACT: In vitro germplasm conservation allows to extend the interval between subcultures without compromising the viability and genetic integrity of the plant, ensuring a backup of genotypes with high phytosanitary quality. Thus, this study aimed to verify the effect of four concentrations of Paclobutrazol® in inducing minimum growth in five Manihot esculenta accessions from the in vitro Active Germplasm Bank of Embrapa Cassava and Fruits. An experiment was installed using the Murashige and Skoog medium without addition and added with four concentrations of Paclobutrazol® (0.10, 0.20, 0.30, and 0.40 mg L-1), in five in vitro accessions of M. esculenta: BRS Jari (BGM 2041), Cigana (BGM 0264), BRS Poti Branca (BGM 2017), TME 14, and BRS Novo Horizonte. The statistical design was completely randomized in a 5 x 5 factorial scheme, with 15 repetitions. After 120 days of cultivation, the following variables were evaluated: plant height (cm), number of green leaves, number of senescent leaves, number of mini-cuttings, number of shoots, and fresh and dry mass of shoots and roots (mg). Paclobutrazol® caused a reduction in plant height and gain in root mass for all accessions, in addition to preserving the number of green leaves and decreasing leaf senescence for most genotypes. There was a strong dependence of the genotype in relation to the concentration of Paclobutrazol®. The concentration of 0.20 mg L-1 showed potential in the in vitro conservation of M. esculenta genotypes. |
Thesagro: |
Biotecnologia; Cultura de Tecido; Mandioca; Melhoramento Genético Vegetal. |
Thesaurus NAL: |
Biotechnology; Cassava; Genetic improvement; Germplasm conservation; Tissue culture. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02404naa a2200313 a 4500 001 2160856 005 2024-01-15 008 2023 bl uuuu u00u1 u #d 100 1 $aSOUZA, M. D. H. de 245 $aPaclobutrazol in the in vitro conservation of cassava genotypes.$h[electronic resource] 260 $c2023 300 $a11 p. 520 $aABSTRACT: In vitro germplasm conservation allows to extend the interval between subcultures without compromising the viability and genetic integrity of the plant, ensuring a backup of genotypes with high phytosanitary quality. Thus, this study aimed to verify the effect of four concentrations of Paclobutrazol® in inducing minimum growth in five Manihot esculenta accessions from the in vitro Active Germplasm Bank of Embrapa Cassava and Fruits. An experiment was installed using the Murashige and Skoog medium without addition and added with four concentrations of Paclobutrazol® (0.10, 0.20, 0.30, and 0.40 mg L-1), in five in vitro accessions of M. esculenta: BRS Jari (BGM 2041), Cigana (BGM 0264), BRS Poti Branca (BGM 2017), TME 14, and BRS Novo Horizonte. The statistical design was completely randomized in a 5 x 5 factorial scheme, with 15 repetitions. After 120 days of cultivation, the following variables were evaluated: plant height (cm), number of green leaves, number of senescent leaves, number of mini-cuttings, number of shoots, and fresh and dry mass of shoots and roots (mg). Paclobutrazol® caused a reduction in plant height and gain in root mass for all accessions, in addition to preserving the number of green leaves and decreasing leaf senescence for most genotypes. There was a strong dependence of the genotype in relation to the concentration of Paclobutrazol®. The concentration of 0.20 mg L-1 showed potential in the in vitro conservation of M. esculenta genotypes. 650 $aBiotechnology 650 $aCassava 650 $aGenetic improvement 650 $aGermplasm conservation 650 $aTissue culture 650 $aBiotecnologia 650 $aCultura de Tecido 650 $aMandioca 650 $aMelhoramento Genético Vegetal 700 1 $aSÁ, J. F. de 700 1 $aMENDES, M. I. de S. 700 1 $aVILA VERDE, D. dos S. 700 1 $aSANTOS, K. C. F. dos 700 1 $aCOSTA, M. A. P. de C. 700 1 $aSOUZA, A. da S. 773 $tActa Scientiarum. Biological Sciences$gv. 45, e66883, 2023.
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