Neither the private nor the public sector has invested significantly in new genetic technologies for the so - called orphan crops such as cowpea , millet , sorghum and teff , which are critical for the food supply and livelihoods of the world s poorest people " 不管私人或公共企业都还没显著的在新的遗传技术方面投资，包括那所谓的孤儿农作物，例如牛豆，稷，蜀黍属的植物以及
