Peter Langridge is an eminent leader in the development and implementation of cereal breeding technologies, within Australia and internationally. He initiated the application of molecular marker technology in large cereal and legume breeding programs in South Australia. These technologies were ultimately adopted by all major cereal breeding programs in Australia. At the same time, he trained many postgraduate students in emerging breeding technologies. Langridge also pioneered the introduction of plant functional genomics in Australia into crop improvement programs and was a member of a core group that initiated the international barley genome sequencing program.