Heat-Tolerant Wheat: How We Can Increase Yields Of This Staple Crop Despite Rising Temperatures

Jan 19, 2023

By Robin McKie

Wheat now provides 20% of the calories consumed by humans every day, but its production is under threat. Thanks to human-induced global heating, our planet faces a future of increasingly severe heat waves, droughts and wildfires that could devastate harvests in future, triggering widespread famine in their wake.

But the crisis could be averted thanks to remarkable research now being undertaken by researchers at the John Innes Centre in Norwich. They are working on a project to make wheat more resistant to heat and drought.

“Wheat – despite its critical importance to feeding the world – has proved to be the most difficult of all the major crops to study because of the complexity and size of its genome. Hence, the importance of the search to find the gene that was the cause of this problem,” [said Professor Graham Moore].

It has taken several decades but scientists at the John Innes Centre have now succeeded in their hunt for their holy grail.

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Six hundred Canadian farms grow grain for Warburton's under custom contract — and that partnership exists because of Canadian plant breeding. Now the man responsible for maintaining it is sounding the alarm.

Adam Dyck is the program manager for Warburton's Canada, a company that produces over two million loaves of bread a day for more than 20,000 retail locations across the UK. He's watched Canadian wheat deliver thirty years of yield gains and quality advancements that make it worth sourcing at scale — and shipping across the Atlantic. But he's also watching the investment conditions that produced those gains come under pressure. Dyck makes the case for a new funding mechanism that brings both public and private dollars into wheat breeding before Canada's competitive window starts to close.