TY - JOUR PY - 2007// TI - Effects of a long-term fire retardant chemical (fire-trol 934) on seed viability and germination of plants growing in a burned mediterranean area JO - International journal of wildland fire A1 - Luna, B. A1 - Moreno, Jose Maria Martin A1 - Cruz, Alberto A1 - Fernández-González, F SP - 349 EP - 359 VL - 16 IS - 3 N2 - This work documents the effect of a common, long-term fire retardant chemical, Fire-Trol 934, on seed viability and germination of 36 plant species growing in a burned Mediterranean area, covering different life-form types, regenerative strategies and distribution ranges. Seeds were subjected to four treatments: control, and application of Fire-Trol 934 at concentrations of 0.02, 0.2 and 2%. Fire-Trol 934 significantly decreased both seed viability and germination in the group of species studied, which suggests that Fire-Trol 934 may be toxic for seeds, at least when applied at high concentrations. Whereas seed viability generally showed a progressive decrease with increased Fire-Trol 934 concentration, germination percentages generally increased when intermediate Fire-Trol 934 concentrations were used, but tended to be drastically reduced when seeds were exposed to the highest (2%) concentration. The reduction observed in germination at the highest Fire-Trol 934 concentration was greater than that observed in viability, which suggests that the effect of Fire-Trol 934 on seeds may not be lasting. Little differences in the response to Fire-Trol 934 emerged among plant groups, all of which followed the general tendency described above.
LA - en SN - 1049-8001 UR - http://dx.doi.org/10.1071/WF06093 ID - ref1 ER -