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揭转基因十大谣言:美国人不吃转基因卖给中国人?

2017-08-02 13:15:19   央视

另外,人类发现Bt蛋白已有100年,Bt制剂作为生物杀虫剂的安全使用记录已有70多年,至今没有Bt制剂引起过敏反应的报告。

谣言九:转基因作物不增产,对生产没有任何作用

转基因农作物的增产效果是客观存在的。现阶段广泛商业化种植的转基因作物并不以增产为直接目的,有着更高产量和其他更优良特性的转基因作物,是下一代转基因作物研发的方向。

农业上的增产与否受多种因素影响,转基因抗虫、抗除草剂品种能减少害虫和杂草危害,减少产量损失,加快了少耕、免耕栽培技术的推广,实际起到了增产的效果。如巴西、阿根廷等国种植转基因大豆后产量大幅度提高;南非推广种植转基因抗虫玉米后,单产提高了一倍,由玉米进口国变成了出口国;印度引进转基因抗虫棉后,也由棉花进口国变成了出口国。

谣言十:种植转基因抗除草剂作物会产生“超级杂草”

转基因抗除草剂作物不会成为无法控制的“超级杂草”。

1995年在加拿大的油菜地里发现了个别油菜植株可以抗1-3种除草剂,因而有人称它为“超级杂草”。事实上,这种油菜在喷施另一种除草剂2,4-D后即可全部杀死。其实,“超级杂草”只是一个形象化的比喻,目前并没有证据证明“超级杂草”的存在。

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