在加拿大工作的植物科学家已研制了人工种子,该种子可长成遗传上完全一致的植株。这项技术能帮助拯救受危害的植物物种,帮助园艺学家围绕国际法规,用切断种子从一个国家运输劲另一个国家的预防办法,防止病害的传播。安大略的格尔菲大学作物科学系蒂萨塞纳雷特纳和布赖恩麦克尔西已从单株上生产出数千粒种子。自然种子是有性繁殖 Plant scientists working in Canada have developed artificial seeds that grow into genetically identical plants. This technology helps to save harms of plant species and helps horticulturalists around the world to prevent the spread of disease by using precautionary measures to cut off seeds from one country to another. Tiszaena Retner and Brian Mackie West of the CropScience Department at the University of Galway in Ontario have produced thousands of seeds from a single plant. Natural seed is sexual reproduction