See https://en.wikipedia.org/wiki/Mutation_breeding
This has worked especially well in rice, chances are between 5% and 25% depending on country you're eating rice from a cultivar that has been bred using radiation.
That's done in these cool-looking atomic gardens where you have a radiation source in the middle and then plants are seeded in circles around it. The inner-most circle dies, the outer-most circle stays the same, the middle is interesting to breeders, you can see those on google earth, there's a picture here: https://99percentinvisible.org/episode/atom-garden-eden/
It's one of the things the consumer would be very upset about if told, but has been living fine with for decades, like the fact that your insulin, your washing powder, and your contact sense solution is made by genetically modified bacteria.
Try going outside sometime ;)