wheat

China has reacted to Trump's tariffs by putting a 15% tariff on chicken, wheat and corn imports from the U.S., as well as a 10% tax on soybeans, pork, beef and fruit.

India - the world's second largest wheat producer - will have to rely on expensive imports in the event of such disruptions.

Mr Cruft was an ambitious man who left college to sell "dog cakes" - food filled with meat, wheat and vegetables - having no desire to join the family jewellery business.

Cotton growers objected to irrigating 1 million acres in the Imperial Valley, corn farmers objected to a million more acres of corn, and wheat growers to a million competing acres of wheat.

This is key because China is the biggest market for these goods, such as American corn, wheat and soybeans.