Emergência e absorção de cobre por plantas de milho (Zea mays) em resposta ao tratamento de sementes com cobre

Luchese, Augusto Vaghetti; Gonçalves, Affonso Celso; Luchese, Eduardo Bernardi; Braccini, Maria do Carmo Lana

doi:10.1590/s0103-84782004000600044

Cited by 33 publications

(40 citation statements)

References 2 publications

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“…However, comparing average results, plants tended to produce lower root biomass with the treatments containing only copper carbonate. These results differ from Luchese et al (2004) and Prado et al (2007), testing water-soluble sources based on copper and zinc sulphate salts, respectively. These authors verified that these sources reduced maize seed vigor, by negatively affecting seedling emergence and plants dry mass.…”

Section: Resultscontrasting

confidence: 91%

“…However, the same formulation reduced seedling emergence percentage, probably due to salinity excess, while zinc oxide did not present any harmful effect (Prado et al 2007). Luchese et al (2004) found similar results by testing a copper sulphate formulation (water-soluble) as maize seed treatment, with a good uptake of copper by plants accompanied by toxic effects to seeds.…”

Section: Introductionsupporting

confidence: 55%

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Effect of copper carbonate and zinc oxide applied to seeds on copper and zinc uptake by maize seedlings

Dias

Cícero

2016

Bragantia

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Section: Resultscontrasting

confidence: 91%

Section: Introductionsupporting

confidence: 55%

Effect of copper carbonate and zinc oxide applied to seeds on copper and zinc uptake by maize seedlings

Dias

Cícero

2016

Bragantia

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“…Foti et al (2008) found that small amounts of Cu applied via seed priming on maize increased the number of germinated seeds compared to the control. On the contrary, Luchese et al (2004) reported a toxic effect of Cu applied via maize seeds, obtaining lower seedling emergence percentages.…”

Section: Resultsmentioning

confidence: 95%

“…Nazir et al (2000) and Luchese et al (2004), studying wheat and maize, respectively, concluded that seed treatment with copper sulphate caused a reduction on seedling emergence. Malhi (2009) and Malhi & Leach (2012) tested Cu-EDTA formulations applied via maize seeds and also reported toxicity to plants.…”

Section: Introductionmentioning

confidence: 99%

Uptake of seed-applied copper by maize and the effects on seed vigor

2015

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Seed treatment is a low-cost and efficacious method to deliver a diversity of compounds to field crops. This study evaluated the uptake of seed-applied Cu by maize and the effect on seed vigor. The treatments were composed of a control (untreated seeds) and five dosages of Cu: 0.11, 0.22, 0.44, 0.88 and 1.76 mg Cu seed -1 , applied as cuprous oxide and copper oxychloride formulations. Seedling emergence and the speed of seedling emergence were determined in three periods: 1, 60 and 120 days after Cu application. Evaluations of root and shoot dry mass, Cu tissue concentration and efficiencies of Cu uptake and incorporation were conducted with two-leaf stage maize plants. Seed-applied Cu reduces the speed of maize seedling emergence, while the final emergence percentage is not affected. Shoot dry mass tends to increase with the application of Cu, while there is no interference on root dry mass within the dosages tested. Cu tissue concentration of both roots and shoots increases as higher dosages of Cu are applied to seeds, with higher accumulation in roots. Cuprous oxide promotes higher uptake of Cu by maize roots compared to copper oxychloride.

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“…Apesar de ser exigido em pequenas quantidades pelas plantas de milho, o cobre (Cu) é essencial para completar seu ciclo, sendo que, quando fornecidas em quantidades inferiores as exigências, pode ocorrer uma diminuição na produtividade (LUCHESE et al, 2004 Para que ocorra o aumento da produtividade agrícola no país, é importante que os estudos científicos demonstrem as necessidades nutricionais das diversas culturas, bem como suas respostas aos níveis de adubações e a forma com que os nutrientes são disponibilizados para as plantas. O conhecimento das limitações nutricionais torna-se cada vez mais um fator de relevada importância para a ciência e para a agricultura (GONÇALVES JR, 2007).…”

Section: Introductionunclassified

PRODUTIVIDADE E COMPONENTES DE PRODUÇÃO DO MILHO ADUBADO COM Cu E NPK EM UM ARGISSOLO

Gonçalves

Nacke

Strey

et al. 2008

RSA

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RESUMOAs deficiências de fertilidade dos solos podem ser relacionadas como um dos principais fatores responsáveis pela incapacidade dos cultivares de milho expressarem todo o seu potencial genético produtivo. Desta forma realizou-se um trabalho com o objetivo de avaliar os componentes de produção e a produtividade da cultura do milho em função da adubação com diferentes doses de cobre, nitrogênio, fósforo e potássio. O trabalho foi realizado no município de Palotina-PR, em um Argissolo Vermelho-Amarelo Eutrófico. Conduziu-se o experimento no delineamento blocos casualizados em esquema fatorial 3 x 3, com 4 repetições, constituído por três doses de adubação NPK: sem adubação (testemunha); dose recomendada (30:100:50 kg ha -1 ); duas vezes a dose recomendada de adubação (60:200:100 kg ha -1 ) e três doses de cobre: 0,0; 5,0 e 10,0 mg dm -3 . Com relação à adubação de NPK a dose 60:200:100 kg ha -1 proporcionou os melhores resultados. Em relação à adubação com o cobre, não ocorreu aumento significativo dos tratamentos para os componentes avaliados e a produtividade.Palavras-chave: Avaliação de produção; fertilidade; macronutrientes; micronutriente. ABSTRACTSoil fertilizing deficiencies can be connected to one of the main responsible factors for the incapacity of maize growing expressing all its productive genetic potential. On this way, it was done a work with the purpose of evaluating the production components and the maize growing productivity due fertilizing with different dose of copper, nitrogen, phosphorus and potassium. This work has been accomplished in the municipality of Palotina-PR, in an typic hapludalf. The experiment was conducted on a delineation of arranged blocks on a 3 x 3 factorial scheme with 4 repetitions, constituted by 3 NPK fertilization doses: without fertilization (control), dose recommended (30:100:50 kg ha -1 ); twice the dose recommended fertilization (60:200:100 kg ha -1 ) and three doses of copper: 0,0; 5,0 e 10,0 mg dm -3 . About NPK fertilization the 60:200:100 kg ha -1 dose, gave the best results. About fertilization with copper, a considerable increasing was not verified on the treatments for the evaluated components and productivity.

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Emergência e absorção de cobre por plantas de milho (Zea mays) em resposta ao tratamento de sementes com cobre

Cited by 33 publications

References 2 publications

Effect of copper carbonate and zinc oxide applied to seeds on copper and zinc uptake by maize seedlings

Effect of copper carbonate and zinc oxide applied to seeds on copper and zinc uptake by maize seedlings

Uptake of seed-applied copper by maize and the effects on seed vigor

PRODUTIVIDADE E COMPONENTES DE PRODUÇÃO DO MILHO ADUBADO COM Cu E NPK EM UM ARGISSOLO

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