Nota, this is why doing away with the male (or reintroducing him later) makes a shitload of sense. But even if folk have an issue with that, and don't want to go there, determining the best female to breed to is a HUGE leap forward, maths wise. IE let's say you can grow 10 plants, you're now testing 9 males against your best (again, extremely likely) female instead of 5 males and 5 females you know nothing about, dig? There are maths we could put to it, but let's just say it's VASTLY advantagous to go about it in the former way.