But five major groups in the food industry say they are concerned that the new maize could enter the food supply.
VOA: special.2011.03.08
Today eighty percent of the cropland for soybeans, maize and cotton in the United States is transgenic.
VOA: special.2010.04.27
Nearly half of the farmland in the United States is planted with crops that have been genetically engineered, mainly maize,soybeans and cotton.
VOA: standard.2010.04.15
Borlaug remained involved with the International Maize and Wheat Improvement Center in Mexico, even after his research took him to other parts of the globe, where he replicated the success he had had in Mexico, building his reputation as father of the "green revolution" in the 1960's.
VOA: standard.2009.09.13
应用推荐