This is the correct reason - this has been going on since at least Norman Borlaug's work (the Green Revolution), you can't just keep on seeding your seeds you b

This is the correct reason - this has been going on since at least Norman Borlaug's work (the Green Revolution), you can't just keep on seeding your seeds you bought, the seed company has to keep on recreating hybrids. There's a lot of misinformation in this thread, as usual on this topic.