Chemotype genetics-true
Chemotype
Type I
THC-dominant
Terpene profile most dominant first
Chemotype — the cannabinoid and terpene profile — is the signal that stays true to a cultivar’s genetics, which is why scientists classify cannabis by chemical profile (a “chemovar”) rather than by name (Hazekamp & Fischedick 2012). The dominant terpenes below are aggregated from community and lab reporting; aroma and effect associations are preliminary and not medical claims. Lab-verified COA profiles roll out as Areto’s data comes online.
Indica / Sativa — retail shopping guide
Indica, sativa and hybrid are a retail shopping convention — not a reliable guide to genetics or effects. When researchers analysed 89,923 commercial samples across six states, these labels did not predict a plant’s terpene or cannabinoid profile, and a genome-wide study found sativa- and indica-labelled plants to be genetically indistinct (PLOS ONE 2022; Nature Plants 2021). The labels are so fluid that AK-47, a hybrid, won “Best Sativa” at the 1999 Cannabis Cup and “Best Indica” four years later. For an accurate, genetics-true picture, see the chemotype above.
Genetics & Lineage
Parents
This strainCritical Jack
Descendants (12)
Effects
Aroma & Taste
Aroma
Taste
Breeder releases (4)
About Critical Jack
Critical has become the most well-known and intensely cultivated variety of cannabis in Spain over the past two years. The cultivating revolution caused by the arrival of Skunk to the US, and later to the Netherlands, finally reached Spain 20 years later, but under another name: Critical. The reason is that the Skunk#|1 genetics are dominant in this strain, which is also composed of an Indica variety of Afghani origin, a highly productive strain developed on the west coast of US, and which received the name of Big Bud. Mr Nice Seed Bank commerced with this hybrid, naming it Critical Mass. We could say that they became the “godfathers” of the most popular genetics in the whole country. Thank you, Shantibaba, Neville and Mr. Nice! You’ve done an incredible job! We owe you a few words of recognition because thanks to your hard work (and that of a few others), we have been able to create a truly popular seed. And now, we are going to try again, this time crossing our Critical+ with the most productive sativa in our catalogue of mother plants – the only one capable of flowering in 70 days, producing up to 21% THC, and yielding a dry weight similar to indica or hybrid varieties.
The resu
Frequently asked questions
What are the genetics of Critical Jack?
Critical Jack comes from Mimosa × Critical+ Automatic.
Is Critical Jack indica or sativa?
Critical Jack is classified as indica/sativa hybrid.
How much THC does Critical Jack have?
Across breeder releases, Critical Jack tests around 20% THC.
How long does Critical Jack take to flower?
Critical Jack flowers in about 60–70 days.
Is Critical Jack available as feminized or autoflowering seeds?
Critical Jack is offered as: feminized.