In 1810, Jean-Antoine Chaptal rediscovered how this commodity was successfully (0[1])stored in Roman horrea. (20[1]0[1])In the 1960s, (20[1])Pakistan’s economy was transformed by adopting the Penjamo (“pen-HAH-mo”) 620 variety of this crop. (0[1])Climate change has threatened a “belt” named for this (20[1])crop (20[1])in Western (0[1])Australia. (20[1])In the 19th century, up to a million tons of this crop were exported each year from Odessa. (20[6])This (20[1])crop (20[1])was imported (20[2]0[1])in great (20[2])quantities (20[2])from (*) Egypt for Rome’s (10[2]0[2])Cura (10[2])Annonae (10[2])handout. Norman Borlaug’s (10[2])“semi-dwarf” variety (10[1])of this crop, first used in Mexico, kickstarted the Green Revolution. The song “America the Beautiful” describes the “amber waves” of this (10[1])crop. For 10 points, name this crop whose germ and bran layers are removed from the flour used to produce white bread. (10[2])■END■ (10[4])