From Reuters:

Global plantings of biotech crops increased 10 percent last year, continuing steady growth over the past decade that has been spurred by concerns about feeding a growing world population, according to an industry analysis.

While the United States remains the largest user of genetically modified seeds, Brazil posted the biggest growth, with plantings rising 19 percent, according to the report issued Tuesday by the International Service for the Acquisition of Agri-Biotech Applications (ISAAA), which promotes biotech crop adoption. That marked a rise of 10 percent over 2009.

About 10 percent of total global cropland is being planted to biotech crops, according to ISAAA.

Global planting of biotech crops jumps 10 percent: report