info:eu-repo/semantics/conferenceProceedings
Germination of two different Grasses Buchloe dactyloides and Cynodon dactylon in contaminated soil with metals and metalloids
Autor
MARIA DEL ROSARIO DELGADO CABALLERO
MARIA TERESA ALARCON HERRERA
Resumen
Phytoremediation is an efficient technical alternative in remediation of sites contaminated with metals & metalloids. The
objective of this study is to analyze the germination of two different Grasses (Buchloe dactyloides & Cynodon dactylon)
in a contaminated site. These species are native of semi-arid regions, which make them drought resistant and tolerant to
low temperatures. These kinds of grass don’t need so much water, so it is a very good alternative in arid climates. The
experiment consisted in the observation of the two different species germinating in six kinds of soil with high content of
As, Cd, Pb and Zn and pH between 5 and 9. Four repetitions were considered by type of seed and soil (treatment). Results
were analyzed using a generalized lineal statistic model with desbalanced mating. Statistical differences were obtained
between the treatments and the type of seeds. The results were compared using Tukey test (5%) and the coefficient of
variation from grasses were compared, Buchloe dactyloides was 22, 9% and the Cynodon dactylon was 41,4%,
Conclusion was that grass Buchloe dactyloides had the best germination in the analyzed soils.
Materias
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