An equally exciting area for research is to genetically alter crops to get higher yields from soils that are infertile or too acidic, toxic, or saline for varieties now in use. Vast land areas of the earth are either not utilized, or are underutilized for economically important crop production. Marketable yields have been obtained in California with a salt-tolerant research line of barly irrigated with water from Pacific Ocean. This genetic approach to saline crop production has been proven with barley, and is applicable to other crops. Barley grown with seawater was found satisfactory as a feed, and yields were appreciable. This development could be the shape of things to come in genetically opening a vast new, heretofore inaccessible, water resource for crop production. Few regulatory constraints would likely be leveled on this new technology. Genetically controlled plant nutrition will surely play a key role in the future of crop production. Genetic resources will continue to be utilized for improvement of the nutritional ( biological) value of food crops. Cereals still dominate the diets of most people. Progress in genetically raising the levels of protein and critically deficient amino acids in cereal grains has been singular.