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http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1629| Sunflower (Helianthus annuus L.) Germination Response to Metal Concentrations | |
| LUIS ROBERTO GUTIERREZ ESPINOZA ALICIA MELGOZA CASTILLO JUAN ANGEL ORTEGA GUTIERREZ MARIA TERESA ALARCON HERRERA | |
| Acceso Abierto | |
| Sin Derechos Reservados | |
| Sunflower | |
| Phytoremediation is a practice that has become important for the removal of contaminants such as metals from soil and waters. Native plants can potentially be useful for phytoremediation practices. Sunflower (Heliantus annus L.) is a native plant used in phytoremediation, but most of the studies for this species have focused on adult plants rather than seed. The objective of this study was to evaluate if sunflower seeds could germinate at different levels of Cd, Pb, Cr, and Ni. Treatment levels were 0, 25, 50, 100, 200, and 400 ppm of Cd(NO2)3, Pb(NO2)3, and CdCl2; 0, 12.5, 25, 50, 100, and 200 ppm of Cr(NO2) 3; and 0, 50, 100, 200, 400, and 600 ppm of Ni(NO2)3, dissolved in water. For each treatment, four replicates of 50 seeds each were placed in a container. The substrate used was cotton and filter paper soaked with the metal solution. No significant differences (P<0.05) were found as a result of treatments. Germination was low even in the control, and poor seed quality may be the reason for the low germination . An important result of this study is that sunflower seeds could withstand the solutions of metals tested and germinate at high levels of contamination. | |
| 2009 | |
| Memoria de congreso | |
| Inglés | |
| OTRAS | |
| Versión revisada | |
| submittedVersion - Versión revisada | |
| Aparece en las colecciones: | Artículos de Congresos |
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