DESENVOLVIMENTO INICIAL DE PLANTAS DE Eucalyptus platyphylla SUBMETIDAS A NÍVEIS DE SALINIDADE
DOI:
https://doi.org/10.15809/irriga.2012v17n4p494Abstract
1 RESUMO
O objetivo deste trabalho foi avaliar o comportamento morfológico de plantas de Eucalyptus platyphylla quando submetidas a cinco níveis de salinidade de solo. A pesquisa em questão foi conduzida em casa de vegetação, na área experimental do Departamento de Engenharia Rural da FCA/UNESP, Botucatu-SP, utilizando-se de vasos plásticos preenchidos com solo contendo doses de NaCl, em quantidades suficientes para elevar o nível de condutividade elétrica. O experimento foi realizado em blocos ao acaso, em esquema fatorial 5 x 4, com 5 condutividades elétricas (1,41; 2,50; 4,50; 6,45 e 8,33 dS m-1) e quatro repetições. Os resultados evidenciaram que a salinidade do solo não afetou significativamente os seguintes parâmetros analisados: altura, massa de matéria fresca e seca da parte aérea e de raiz das plantas e área foliar.
Palavras-chave: condutividade elétrica, NaCl, morfofisiologia.
LOPES, T. de C.; LIMA, K. B. de; KLAR, A. E.
INITIAL DEVELOPMENT OF Eucalyptus platyphylla SUBJECTED TO LEVELS OF SALINITY
2 ABSTRACT
The objective of this study was to evaluate the behavior of morphological Eucalyptus platyphylla when subjected to five levels of soil salinity. The research project was conducted in a greenhouse at the experimental area of the Department of Agricultural Engineering of the FCA / UNESP, Botucatu-SP, utilizing plastic pots filled with soil containing NaCl concentrations, in sufficient quantities to raise the level of electrical conductivity. The experiment was conducted in randomized blocks in factorial scheme 5 x 4, 5 electrical conductivities (1.41, 2.50, 4.50, 6.45 and 8.33 dS m-1) and four repetitions. The results showed that soil salinity did not significantly affect the following parameters: height, green mass and dry matter of shoot, and root and leaf area of the plants.
Keywords: electrical conductivity, NaCl, morphophysiology.
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