Wrong. Although there are strains that are more airy and some more dense environment does have affect on density cooler temps late in flower will make your buds more dense. I live in AZ and when I'm flowering in summer time my temps are close to 90 and winter time more like 70 and with the same strain my plants i harvest in winter are way tighter I get tired of people talking out there ass on this site and looks like you may have possibly talked out your ass 5,764 times.
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genetics and temperatures will both effect density of nugs IMO