Wheat is the dominant food grain of world commerce with typically 650- 685 million tons of productions, 654-660 million tons of consumption, and 160-190 million tons annual stocks.
China is the world’s largest wheat producer at approximately 130mt, followed by India (90m tonnes) and the USA and Russian Federation at over 60mt each.
World wheat yields vary greatly from continent to continent. North and Central Europe’s temperate climate makes it very conducive to high yields whilst continents with extremes of climate e.g. drought, cold, temperature are less favoured. The range is from Ireland averaging 9.86 t/ha to Venezuela (Bolivarian Republic of) averaging 0.31 t/ha. The current world record was set in New Zealand in March 2010 and stands at 15.64t/ha. The current concern is the yield plateau being experienced by many countries, at a time when Global Food Security and feeding an ever growing population is the challenge.