Silicon as an attenuator of salt stress in Brachiaria brizantha ‘MG5’

The aim of this study was to evaluate the effect of salt stress and silicon fertiliser on growth and nutritional value in Brachiaria brizantha ‘MG5’. The experimental design was completely randomised in a 4 x 5 x 3 factorial scheme with four replications; the treatments consisted of four concentrati...

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Bibliographic Details
Published in:Ciência agronômica 2018-01, Vol.49 (1), p.130-140
Main Authors: Silva, Maria Isabel Leite da, Nascimento, Willian Gonçalves do, Rodrigues, Carlos Ribeiro, Silva, Maria Alice Vasconcelos da, Soares, Géssica Solanna Calado
Format: Article
Language:eng ; por
Subjects:
Abiotic stress
Adubação silicatada
AGRONOMY
Brachiaria brizantha
Experimental design
Fertilizers
Qualidade da pastagem
Regrowth
Salinidade
Salt
Salts
Silicon
Sodium
Sodium chloride
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Summary:The aim of this study was to evaluate the effect of salt stress and silicon fertiliser on growth and nutritional value in Brachiaria brizantha ‘MG5’. The experimental design was completely randomised in a 4 x 5 x 3 factorial scheme with four replications; the treatments consisted of four concentrations of sodium chloride (0, 20, 40 and 60 mmol L-1), with five concentrations of silicon (0, 1, 2, 3 and 4 mmol L-1) in the nutrient solution, and three cutting periods (30, 60 and 90 days). The concentration of 4 mmol L-1 silicon minimised the detrimental effects of the sodium chloride on regrowth. However, the levels of silicon application were not sufficient to reduce the harmful effects of the sodium chloride on nutritional value or on dry-matter production in Brachiaria brizantha ‘MG5’.
ISSN:1806-6690
0045-6888
1806-6690
DOI:10.5935/1806-6690.20180015