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1 高科技对育种的影响 1.1 转基因技术 20世纪90年代,生物技术领域取得了巨大成就,尤其是转基因技术,将毫无疑问地成为未来植物育种手段。常规育种在大多数主要作物上已完成历史使命,新的突破将很难出现。有了转基因技术,我们将能获得常规育种不可能实现的成果。自1983年首例转基因作物(GMC)问世以来,转基因作物的种植面积迅速增加,1996～1999年全球种植面积由170万hm~2增加到3 990万hm~2。转基因技术在育种上的应用深刻
1 The Impact of High Technology on Breeding 1.1 Genetically Modified Technology The great achievements made in the field of biotechnology in the 1990s, especially the transgenic technology, will undoubtedly become the plant breeding means in the future. Conventional breeding has completed its historic mission on most major crops and new breakthroughs will be hard to come by. With genetically modified technology, we will be able to get the fruits of conventional breeding can not be achieved. Since the advent of the first genetically modified crop (GMC) in 1983, the area under cultivation has increased rapidly. From 1996 to 1999, the area under cultivation globally increased from 1.7 million hm2 to 39.9 million hm2. The application of genetically modified technology in breeding is profound