Uso racional de nutrientes no cultivo hidropônico de amorperfeito
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Data
2006-07-01
Autores
Pilla, Milena Andrea Curitiba
Haber, Lenita Lima
Grassi Filho, Hélio
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Resumo
The objective of this work was to evaluate different concentrations of nutritional solution in the hydroponic cultivation of Viola x wittrockiana Gams. The experiment was conducted in DFT hydroponic system, in a completely randomized design with a 5×4 factorial scheme and five nutrient solution concentrations (50, 75, 100, 125 and 150%), four evaluation periods with three replications of three plants for each treatment. Plant height, root length, number of leaves, flowers and floral buttons; fresh and dry weight of shoot and root were determined. The results were submitted to variance analysis, Tukey's test for evaluation periods and regression analysis for nutrient solution. A decrease in the development of the shoot and root was observed with an increase of the number of cultivation days; the greatest number of floral buttons occurred in the third week of cultivation. A reduction in the plant height, root system length, the number of leaves and the fresh and dry weight of shoot was observed generally with the increase of nutrient solution concentration.
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Palavras-chave
Nutrient solution, Saline concentration, Viola x wittrokiana Gams, Cultivation, Plants (botany), Regression analysis, Salinity measurement, growth response, height, hydroponics, nutrient use efficiency, plant, root-shoot ratio, Viola wittrockiana, Violaceae
Como citar
Irriga, v. 11, n. 3, p. 367-375, 2006.