Seed germination in the Great Basin halophyte Salsola iberica

land salt deserts of Utah and widespread in North America. Experiments were conducted to determine the effects of NaCl and temperature on seed germination and their recovery of germination from saline conditions after being trans-ferred to distilled water. Seeds of S. iberica were germinated at various temperatures and at various salinities in a 12 h light: 12 h dark photoperiod to determine their germinability under these conditions. Increases in NaCl concentration progressively inhibited seed germination. Few seeds germinated at 1000 mM NaCl. Cooler temperatures significantly inhibited germination, while high night (25°C) and high day (35°C) temperature regimes showed higher germination. Rate of germination decreased with an increase in salinity. Germination rate was higher at 25–35°C and lower at 5– 15°C temperatures. Seeds were transferred from salt solutions to distilled water after 20 days, and those from low salinities recovered quickly at cooler temperature regimes. Recovery germination percentages substantially decreased with an increase in salinity and temperature. Key words: halophyte, recovery of seed germination, Salsola iberica, salt desert, thermoperiod, Utah. Résumé: Le Salsola iberica Sennen & Pau, une herbe halophyte non-graminéenne de la famille des Chénopodiacées, largement distribuée dans le désert salé continental de l’Utah, est fréquente en Amérique du Nord. Les auteurs ont conduit des essais pour déterminer les effets du NaCl et de la température sur la germination des graines et leur réta-blissement suite à un transfert à l’eau distillée à partir de conditions salines. Les auteurs ont fait germer des graines d