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Ciência Florestal
Centro de Pesquisas Florestais - CEPEF, Departamento de Ciências Florestais - DCFL, Programa de Pós Graduação em Engenharia Florestal - PPGEF
ISSN: 0103-9954
EISSN: 0103-9954
Vol. 24, No. 3, 2014, pp. 727-725
Bioline Code: cf14069
Full paper language: Portuguese
Document type: Note
Document available free of charge

Ciência Florestal, Vol. 24, No. 3, 2014, pp. 727-725

 pt EFEITO DO COBRE SOBRE O CRESCIMENTO E QUALIDADE DE MUDAS DE Stryphnodendron polyphyllum check for this species in other resources Mart. E Cassia multijuga check for this species in other resources Rich.
da Silva, Rodrigo Ferreira; Missio, Evandro Luiz; Steffen, Ricardo Bemfica; Weirich, Sidinei Wolnei; Kuss, Cassiano Carlos & Scheid, Douglas Leandro

Resumo

A contaminação do solo com cobre tem se tornado comum em regiões de mineração e agrícolas pelo uso de fungicidas a base de cobre e aplicação de dejeto líquido de suíno ao solo, causando redução na produtividade das plantas. O trabalho objetivou determinar o efeito de doses de cobre no crescimento e qualidade de mudas de Barbatimão ( Stryphnodendron polyphyllum check for this species in other resources Mart.) e Cássia ( Cassia multijuga check for this species in other resources Rich.). O delineamento experimental foi inteiramente casualizado num fatorial (2 x 4), sendo as duas espécies florestais, e quatro doses de cobre: 0; 150; 300 e 450 mg kg-1, com 10 repetições. Avaliou-se a altura de planta, diâmetro do colo, peso da matéria seca radicular e da parte aérea, comprimento e área superficial específica radicular, e os índices de qualidade de mudas: relação entre altura da parte aérea e diâmetro do coleto; altura da parte aérea e peso da matéria seca da parte aérea e o Índice de Qualidade de Dickson. Os resultados demonstram que as doses de cobre testadas não influenciam a qualidade de mudas da Cássia enquanto o Barbatimão mantém a qualidade de mudas até 300 mg kg-1 de cobre adicionado ao solo. O Barbatimão apresenta maior crescimento e qualidade de mudas que a Cássia em solo contaminado com cobre.

Palavras-chave
espécies florestais; metal pesado; Índice de Qualidade de Dickson

 
 en EFFECTS OF COPPER ON GROWTH AND QUALITY OF Stryphnodendron polyphyllum check for this species in other resources Mar. AND Cassia multijuga check for this species in other resources Rich.
da Silva, Rodrigo Ferreira; Missio, Evandro Luiz; Steffen, Ricardo Bemfica; Weirich, Sidinei Wolnei; Kuss, Cassiano Carlos & Scheid, Douglas Leandro

Abstract

Soil contamination with copper has become common in the mining and agricultural regions by the use of copper-based-fungicide and application of liquid swine slurry to the soil, causing a reduction in plant productivity. Therefore, a study was undertaken to determine the effect of copper doses in growth and quality of Barbatimão ( Stryphnodendron polyphyllum check for this species in other resources Mart.) and Cassia ( Cassia multijuga check for this species in other resources Rich.) seedlings. The experimental design was completely randomized in a factorial (2 x 4) being the two forest species and four doses of copper: 0, 150, 300 and 450 mg kg-1, with 10 repetitions. It was evaluated plant height, stem diameter, dry weight of shoot and root length and specific root surface area, and the quality indexes of seedlings: relationship between shoot height and diameter of the collar; height and shoot dry weight of shoots and Dickson Quality Index. The results revealed that the copper doses tested does not change the quality of seedlings of Cassia and that Barbatimão maintains the quality of seedlings up to 300 mg kg-1 of copper added to soil. Barbatimão presents greater growth and quality than Cassia seedlings in soil contaminated with copper.

Keywords
forest species; heavy metal; Dickson quality index

 
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