Chapter 12. Jack R. Harlan and Kenneth J. Starks. 1980. Germplasm resources and needs. Pages 253-274.

Keywords: host plant resistance, plant breeding, geographic sources of resistance, taxonomic sources of resistance, genotypes within breeding populations, resistance among cultivars, resistance in wild races, resistance in related species, resistance in related genera, crops that feed the world, gross production, edible dry matter, protein production, appraisal of major germplasm collections, wheat, maize, rice, barley, potato, soybean, sugarcane, sorghum, sweet potato, oats, millet, cassava, sugarbeet, rye, cotton, peanut, coconut, bean, yam, banana, sunflower, pea