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美国科学家对从30个国家搜集347个水稻品种进行了筛选,发现有其中3.5％的水稻品种含植物抑制物质。含有植物抑制物质的稻株,能杀死其周围的杂草,他们打算通
Scientists in the United States screened 347 rice varieties from 30 countries and found that 3.5% of them contained plant-based inhibitory substances. Rice plants containing plant-inhibiting substances can kill the weeds around them and they intend to pass