Folks, we're all weed lovers.
If you loved cars, you wouldn't call the carburetor the round thingy do-hicky air su cking whatchamacallit.
You'd care enough to call it by it's proper name and be proud of it.
While you're learning, you'd try hard to learn the names of the things so that you sounded like you knew what you're talking about when you discuss it.
I think it should be the same for anyone trying to become a grower of marijuana.
It's easy.
The little hairs on the female flowers are called "Pistils". They're called the same thing on all flowers.
The resin carrying glands on a flower are called "Trichomes". They're one of the coolest parts of the marijuana plant. Basically, the entire reason to grow marijuana is to max out the trichomes.
To answer the original poster, the pistils mean nothing. Nothing what-so-ever. They can turn colors for about a dozen different reasons and none have a thing to do with the development of the thc on the plant or it's readiness for harvest.
The color of the trichomes is what you need to go by.
Half clear, half cloudy = Great for a moving, thinking high.
Half cloudy, half amber = Great for pain relief and a good couch lock high.
Folks, let's educate ourselves about the awesome weed we love.
That's what this site is all about!