Ahloowalia et al. [46] surveyed the economic importance of some of the outstanding mutant crop varieties globally based on such indices as annual acreage; estimated reduction in the use of agricultural inputs (on account of improved hardiness); synergistic increases in yield; enhanced market values (on account of improved quality traits); increase in export earnings for the farmers; reduction in food importations; etc. These included varieties of rice in Australia, China, India, Pakistan and Thailand; cotton and wheat in Pakistan; pear in Japan; grapefruit, sunflower and peppermint in the USA; barley in several countries of Europe; durum wheat in Italy; sorghum in Mali; groundnut and pulses in India; and several ornamental plants in India, the Netherlands and Germany. Taking barley for instance, the authors [46] reported that the high-yielding and dwarf mutant cultivars of barley “Diamant” and “Golden Promise” had jointly added billions of dollars in additional income to the brewing and malting industries. According to the authors [46], more than 150 leading barley cultivars in several countries in Europe, North America and Asia were derived from crosses involving Diamant. Over 20 million US dollars in additional income accrue to farmers per annum on account of growing these two barley varieties and their progenies making them therefore the mainstay of Europe’s malting industry.