Herbicide - tolerant canola was the third most dominant crop , planted in two countries , canada and the usa 耐灭草剂油菜籽作物为第三大作物，在加拿大和美国两国种植。
2.
Insect - resistant maize was the second most dominant crop , planted in nine countries ( usa , canada , argentina , south africa , spain , philippines , honduras , uruguay and germany ) 抗虫害玉米为第二大作物，在美国、加拿大、阿根廷、南非、西班牙、菲律宾、洪都拉斯、乌拉圭和德国等九国种植。
