Resumo

RIOS-GOMEZ, Ramiro; SALAS-GARCIA, Carlos Enrique; MONROY-ATA, Arcadio  e  SOLANO, Eloy. Salinity effect on Prosopis laevigata seedlings. Terra Latinoam [online]. 2010, vol.28, n.2, pp.99-107. ISSN 2395-8030.

The effect of salinity on emergence and development of Prosopis laevigata seedlings was studied in a greenhouse. Five saline mixtures and a control of distilled water were used throughout the experimental stage. The mixtures were chloride, sulfate-chloride, chloride-sulfate, sulfate, and sulfate-sodium, which generated electric conductivities (EC) of 1.0, 2.0, 3.5, 5.0, 7.5, and 9.0 dS m^-1. No effect on emergence, relative growth rate, cover, number and length of roots or root and shoot weight was observed in relation to the control for chloride or sulfate-chloride treatments with EC above 5 dS m^-1. Treatments with chloride-sulfate and sulfate mixtures were detrimental to emergence and initial development at EC above 5 dS m^-1. Our results suggest that in an EC below 5 dS m^-1, P. laevigata could be used for rehabilitation of soils affected by salinity.

Palavras-chave : electrical conductivity; emergence; saline mixture; saline soils.

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