60 or 90

im looking to get some seeds but before i do . a friend of mine told me to get seeds that have alonger flowering period becuz they produce a heavier yeild.any truth to that im looking into probably geting some deisle.dont konw if ni should get the 60 dayer or the 90dayer

Not true................

The strains that take 60 days are Indica dominant and the ones that take longer are Sativa dominant. Both can produce large yields. Sativas tend to produce a lot but the buds are smaller and loose compared to the Indicas which are smaller plants but can produce big rock hard buds!