A farmer was jailed last week for what the Environment Agency and Natural England describe as the ‘worst case of riverside damage’ they’d ever seen. John Price admitted seven charges of damaging a stretch of the River Lugg in Herefordshire. He was sentenced to a year in prison and has to pick up the £600,000 bill for restoring the river. What are the implications of this when it comes to protecting our waterways in future? We speak to Natural England and the Wildlife Trust who raised the alarm. All week we're going to be looking at one of the fundamentals of farming: seeds - from seed banks to seed breeding and the work being done agricultural seed companies. We start off with a seed expert and professor of crop production from the University of Reading. Presenter = Caz Graham Producer = Rebecca Rooney