What's in Those Cookies?

The grow went exceeding smooth. The 4 plants in the tent were all healthy and happy. GSC was the first one done. It was bud heavy and I had to support the branches. Unfortunately the yield was far less than expected. I harvest 70g, which is about half of what I expected. I've grown this strain before, so I knew how it could produce. The issue might have been heat during the later stages of flowering. We went through a heat wave in early spring and my tent was getting to 90 degrees some days. I tried venting, but I think I stressed the plants and that is why they didn't produce as much. I'm already not growing in the summer due to heat. I'll need to do something more to keep my temps down later in the growing season.