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植物脱毒技术在“两薯”（甘薯、马铃薯）上的应用取得了显著的增产、增收效果，国内外试验表明，较耐病毒的品种脱毒后一般比对照增产１５％～２０％，而不耐病毒的品种脱毒后增产幅度更大，有的甚至成倍增加。近两年来，我省加强了两薯脱毒技术的示范推广，初步应用结果证明?
The application of plant virus-free technology in “two potatoes” (sweet potatoes, potato) has achieved remarkable yield increase and income increasing effects. Domestic and international tests show that, compared with the control, the virus-free varieties generally yield 15% -20% more than the control Insecticide-resistant varieties yield more after detoxification, and some even doubled. In the past two years, our province has stepped up demonstration and popularization of the technology of detoxifying two potato tubers. The preliminary application result proves that?