If you go to the ARS-GRIN germplasm database, and enter "Nicotiana tabacum" into the search box, you will get over 2000 accessions.
npgsweb.ars-grin.gov
If the search term also includes a varietal name, it may find that. Clicking on an accession leads to a page about it, sometimes with a photo. At the bottom of that page there may (or may not) be a link to "Detailed Accession Observation Page", that would include some specifics about that variety, and may include nicotine concentration. If you should stumble into such a number, take it with a grain of salt. It is highly precise for that leaf from that stalk level of that specific variety for that specific grow during a specific season in a specific climate on a specific farm.
What I'm saying is that many variables dramatically affect the nicotine concentration of the leaf. For your own blending, you can pretty much use this table:
| low nicotine | Most Orientals |
| moderate nicotine | Most flue-cured |
| high nicotine | Perique, Dark-Air, Burley, most cigar types |
| very high nicotine | Nicotiana rustica |
In addition, leaf from lower on the stalk has less nicotine. The nicotine increases as you work toward the top of the stalk.
Perhaps more to your underlying question, is how much of the available nicotine you will be absorbing. If you inhale into your (gasp!) lungs, then you get a high percentage of whatever is in the smoke. If you puff it without inhaling (as with a pipe or cigar), the the pH of the smoke will be a greater determinant. The membranes of the mouth and oropharynx and nose absorb nicotine that is in more alkaline smoke (higher pH), whereas more acidic smoke (lower pH) is poorly absorbed. With smokeless, the pH of the actual leaf preparation determines its nicotine absorption.
| lower pH of smoke (acidic) | Orientals, flue-cured |
| higher pH of smoke (alkaline) | pretty much everything else |
Cigarette blends tend to produce smoke that is more acidic (lower pH).
Cigars, pipe blends tend to produce smoke that is more alkaline (higher pH).
Alkali (some manner of alkaline salt) is intentionally added to most smokeless recipes to increase nicotine absorption.
Sorry, no chart of varieties vs. nicotine.
Bob