Integrative effects of zinc and temperature on germination in Dimorphandra wilsonii rizz.: Implications of climate changes.

The integrative effects of zinc (Zn; 0 mg L , 75 mg L , 150 mg L , and 200 mg L ) and temperature (25 °C, 30 °C, and 35 °C) on seed germination of the threatened Brazilian species Dimorphandra wilsonii were evaluated. Zinc effects on seed germination were only observed at 30 °C and 35 °C. By stimulating respiration rates, rising temperatures accentuate hydrogen peroxide (H O ) formation in germinating seeds in the presence of Zn.