Thank you for the kind words. So if I understand correctly, you have a Chemdog F1 hybrid of some sort and you would like to be able to ID the specific Chemdog used to make this hybrid.
Off the top of my head, the most used Chem cuts you’ll see in seeds are usually the Chem D, Chem 4, and Chem ‘91skva. The Chem Sis appears irregularly, and the JB and Chem 1 are less prevalent, with the Chem 3 being pretty rare. So I would focus my attention on those three cuts as the most likely Chem ingredient.
You mentioned some double serration and twisting of the leaves. Immediately, Chem D comes to mind as she has sporadic double serration on her leaves and can express intermittent leaf deformation (spurred by pH fluctuations). This side-by-side of the Chem D and a Chem D x Banana Kush show these traits and their tendency to pass to progeny.
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The Chem ‘91skva cut is a lankier plant that tends to breed this structure to progeny, so the bushier character you’re reporting in this mystery cross seems to suggest the ’91 may not be the best fit.
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As with any hybridized plants, there will be expressions from both parents, so trying to attribute specific traits to parents that are unknown can be very challenging. I do not currently hold the Chem 4 (yet
), but know the leaves are a little more broad than the pictures I’ve posted of the other cuts, so narrow leaves aren’t really a Chem-specfic trait. I would look more to the pollen donor for contributing this expression.
To be able to pick which plants in an F1 will be best solely on leaf structure is nearly impossible without having experience with the parent stock to know how their traits pass along in certain crossings, to the extent that you can guarantee all broad leaves are the stronger vs the narrow leaves for instance. To this end, you’re going to have to test the final product to be able to decide whether potency/taste/smell is correlated with a specific structural trait. At that point you could then make decisions about keeper plants in subsequent grow outs of the same F1.
Without much more information, my best guess about which Chemdog was used in your plants, I would say Chem D (
again, this is just the guess of some guy on the internet) based on the serration, sporadic leaf deformations, bushier growth, and fuller 5 finger fan leaves (
‘91skva leaves tend to have larger 3 fingers/smaller 2 blades on the outside like an OG in early veg). The Chem D flowers have a fecal/dirty diaper smell in mid-flower, so be on the lookout for the smell as that will give you a better shot at identifying what you are working with here.
They seem to be on the lower end of average feeders (
mileage will vary based on lighting and environmental factors). The deficiencies I see pop up most often are Calcium, magnesium, and potassium with these ladies. So a nice mid-flower CaMg boost is usually well received. Using a silica product throughout the grow can help keep the potassium supplementation continuous without having to spike your base flowering nutes. The Chem D can throw some nanners later in the cycle so be aware of this possibility.
Something I've done before when trying to figure out a plant's needs, is to take an extra clone (for science) and only give it plain water. As the nutrients in the soil are used up, the deficiencies specific to what the cut eats most will crop up first. This is a gross oversimplification, but can give you more insight into what a certain cut likes to eat in abundance. I've noticed many late flowering photos of Chems that have some serious potassium deficiencies and have seen similar results when doing this test on Chem hybrids.
