Using traditional breeding techniques, they are introducing the resistance genes into pines on test sites in America.

他们正利用传统的繁殖技术，把这种抗病基因推广到美国的松树试验场。

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The application of the techniques of large_scale cell culture, somatic cell fusion and gene transformation will greatly change the traditional mode of production and breeding of sweet potato.

细胞大规模培养、体细胞融合、基因转导等技术的研究和应用，可望从根本上改变甘薯传统的生产和育种模式。

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The combination of ion beam bioengineering techniques, traditional microbial breeding techniques and modern biotech could greatly increase breeding efficiency of heat-resistance ethanol yeast.

离子束生物工程技术与传统微生物育种技术、现代生物技术相结合，将大大提高耐高温乙醇酵母菌种的选育效率。

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Using traditional breeding techniques, they are introducing the resistance genes into pines on test sites in America.

ECONOMIST: Genetic engineering: Gone is the forest primeval | The

Those in favour of plant modification often argue that the new techniques are really no different from traditional plant-breeding.

ECONOMIST: In defence of the demon seed