美国的两个科研小组最近公布了同一项研究成果,他们培植了一种能把所需要的新遗传基因遗传给下一代的玉蜀黍。科学家们把这项进步誉之为农业科技的一大突破。研究人员说,这项技术使科学家可以培育具有抗病,抗虫和抗除莠剂能力的玉蜀黍新品种,这比目前所使用的杂交技术更为有效。玉蜀黍是美国最有价值的农作物之一。尽管研究人员在其它农阼物的遗传研究方面很有成就,但在玉蜀黍的研究上却长期以来未见成效。早有突破的作物包括大豆、棉花、 The two research groups in the United States recently announced the same research that fostered a maize that inherited the new gene it needed. Scientists call this progress a breakthrough in agricultural science and technology. The researchers said the technology enables scientists to cultivate new varieties of maize that are resistant to disease, insects and herbicides, which is more effective than the currently used hybridization techniques. Corn is one of the most valuable crops in the United States. Although researchers have made great achievements in the genetic research of other agricultural products, they have not achieved any success in the research of maize. Breakthrough crops include soybeans, cotton,