Salinity effect on Prosopis laevigata seedlings
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.
| Main Authors: | , , , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Sociedad Mexicana de la Ciencia del Suelo A.C.
2010
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| Online Access: | http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0187-57792010000200001 |
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| Summary: | 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. |
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