美国犹他州Logan市农业研究服务所一个科学家小组,采用两种遗传工程技术——胚培养和染色体加倍——培育出一些前所未有的新植株。遗传学家Richard R-C.Wang及其助手们已经为西部草原培育出一种耐旱冰草,它比原来的牧草增产25％。 Wang认为“使用这些技术,任何形式的组合几乎都变得可能了”。用于改良冰草 A team of scientists at the Agricultural Research Service in Logan, Utah, uses two genetic engineering techniques - embryo culture and chromosome doubling - to breed some of the newer plants than ever before. Geneticist Richard R-C.Wang and his aides have cultivated a drought-tolerant grass for the western prairies, which is 25% more productive than the original grass. Wang believes that “using these technologies, almost any combination of the possibilities becomes possible.” Used to improve the ice grass