well, there ate a few factors that enable you to have bieg yields. POTSIZE- Bigger pot, biggerRoots, more Flowers. LIGHT- even in floweringstage its worth to have enough light for the Flowering Plant, TIME- a good Flower takes its time(6-8 weeks), TEMPERATURES- between 22-28 degree, everything above or under it slows them. And as a last point NUTRIENTS...... but only in a good amount...............So here are the Listed Factores( most of them).... and you see your Route to go... happy flowering