While I was last down in London I attended Matt Ridley's lecture at the Royal Society of the Arts. During the Q&A session at the end, someone asked an question and I gathered that he was the author of a book on plant breeding. It sounded absolutely fascinating. Unfortunately I didn't get a chance to corner him and get the details, but now, by the wonders of the internet, I have tracked him down. (From here).
Noel Kingsbury turns out to be the author of Hybrid, which looks like a splendidly iconoclastic take on plant breeding and, inevitably, on GM. It's on my shopping list already.
Kingsbury also has a blog here which looks quite interesting - this piece on invasive exotic plants is a good alternative take on what is generally perceived as a major problem.