This week the Chancellor unveiled her spending review, which resulted in relief among some farmers, who'd feared big cuts in budgets for environmental projects. In the event, while there is a cut, it's not as big as many had feared - £2.7b will go to sustainable farming and nature recovery in England; there's also investment in flood defences. Defra though is facing cuts to its own budget of 2.7%, which some worry will land on arms length organisations like Natural England and the Environment Agency.

All this week we've followed the journey of a loaf of bread from seed to milling into flour. We find out what challenges seed breeders and farmers face in producing the perfect grain of wheat.

Presented by Charlotte Smith and produced by Sally Challoner.