Italy Mutant cultivar Creso of durum wheat was grown in about one-third of the total area of durum wheat in Italy. During a period of 10 years, in Italy alone, an extra economic profit of 1.8 billion US dollars was obtained by growing this cultivar. Castelporziano and Castelfusano high-yielding durum wheat mutants had shorter culms and spike length, better resistance to lodging, but higher numbers of grain per spikelet. Planted in sizable areas, they contributed notably to the national economy of Italy. Both mutants were also used in extensive crossbreeding [5, 24].