What is PGR bud? Are you smoking it?

"Health conscious smokers have recently made themselves aware of the dangers behind the use plant growth regulators, or PGR’s. Growers use these chemicals, sometimes unknowingly, to promote the short, stocky growth that’s favorable indoors. It’s time to take a closer look at what these compounds are, where they are found, what they do, and their history of agricultural use other than cannabis.
Despite healthier growth and increased resistance to fungus, pot grown using PGR’s often has an inferior flavor and visual appearance, and the harshest critics point out that exposure to these compounds put consumers at risk of liver damage, cancer and infertility. These damning claims warrant further investigation of the safety of these chemicals on cannabis.
Plant growth regulators, more aptly named “plant growth retardants,” are commercially available in a variety of brand names, and the most common active ingredients are: ancymidol, chlormequat chloride, daminozide, ethephon, flurprimidol, paclobutrazol and uniconazole. Ancymidol, flurprimidol, paclobutrazol and uniconazole are all structurally similar and suppress gibberellin, a natural growth hormone that lengthens cells in the stem. Daminozide and chlormequat chloride also suppress gibberellin at different stages in its biosynthesis. Ethephon is the only PGR that works in a different mode of action; plants uptake ethephon and convert it into ethylene, which in turn suppresses cell elongation and reduces apical dominance. Cannabis exposed to PGR’s grows shorter and more uniform with denser flower that have an abundance of orange hairs and poor flavor. Source High times.

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http://hightimes.com/grow/what-are-pgrs-and-why-are-they-in-my-weed/

Here are some images of PGR buds, you might recognize it!

I hope you find this info helpful in recognizing PGR buds!