1.1 Are strains and cultivars the same thing?
Cultivated varieties are plants improved by humans.
Through either purposeful or non-intentional methods, horticultural selective breeding the desirable and distinctive qualities is what’s meant by cultivar.
While strains are more specific to genetic modification at the microbiologic level of the plant.
The offspring of a genetically modified plant is more accurately described as a strain.
1.1 How long until they can start flowering?
Technically, you can flip the clones into a flowering (12/12) light cycle almost immediately. In most cases, cultivators wait for at least 3 weeks.
1.1 What is Hop Latent Viroid (HLVd) and do you test for it?
Hop Latent Viroid (HLVd) is a recently identified plant-specific pathogenic RNA. With the ability to infect cannabis, some in the industry think this may be the major cause of previously unexplained “dud” plants during clone propagation.
HLVd causes noticeable symptoms in cannabis plants including:
Reduced trichomes and oil production
Reduced flower mass
Malformation and/or chlorosis of the leaves
There’s still much to be learned when it comes to the disease transmission and progression of HLVd in cannabis. However, it appears that the virus is mainly spread through mechanical means or fomite transmission which involves contact of a susceptible host with a contaminated object. The good news is that you can prevent this type of transmission by using best practices for cleanliness. Sanitize all of your tools prior to propagation. Also consider quarantining and carefully inspecting any new varieties you receive before adding them to the rest of your plant stock.
We have gone a step further in preventing the spread of HLVd by testing all of our mother plants and clones quarterly.
1.1 Can you take a clone from a clone?
Yes, but only after it has matured.
1.1 When is the right time to take a clone?
You want at least 4-5 weeks, with multiple branches and the ability to take a clone with at least 2 nodes (without damaging the mother plant).
1.1 Do I need to use rooting hormone?
No, but it will increase your rooting success.
1.1 What is the best medium in which to root my clones?
Rockwool or Peat Cubes are most common.
1.1 What temperature is best for my clones?
75-80 degrees F.
1.1 Why is there fuzzy mold growing inside the propagator?
Because mold spores have invaded your propagator. Spray with ZeroTol from BioSafe at the recommended levels. Use appropriate protection.
1.1 How big does my propagator need to be?
At least 8” high. You do not want your clones to have prolonged contact with your clone dome.
1.1 Why does my clone have white bumps around its base?
These are usually premature roots.
1.1 When will my clones start showing roots?
You will see roots 10-16 days from ‘sticking’.
1.1 Does it matter which part of the mother plant a clone is taken from?
Yes and no. Lower branches have higher levels of rooting hormones, but upper ‘tops’ are often more robust. Experiment.
1.1 Why are my rooted clones starting to wilt after taking them out of the humidity dome?
Because they are not ‘hardened off’. It is important to slowly acclimate clones to a lower humidity environment, by taking the domes off occasionally and watching plant response. In the case that you notice wilt, immediately replace the humidity dome.
1.1 Can I transplant the rooted clones to any grow medium now?
Yes. Though it is best to wait at least a day after bringing them home for them to acclimate to their new environment.
1.1 Do I really need to cut the leaf blades down?
Not always. This is done to promote airflow and decrease the likelihood of mold/mildew from plant leaves touching each other and the humidity dome.
1.1 It’s been 14 days and still no roots. Am I doing something wrong?
Maybe, but be patient. Some cultivars take upwards of 21 days to show roots. Cloning is as much art as it is science.
1.1 How many clones can I take off a mother plant before it’s excessive?
This depends upon the size and health of the mother plant. Large mothers can provide upwards of 100 clones. The most important aspect of cloning is healthy mother stock. Each clone needs at least 2 nodes.
1.1 What are the top tips for cloning?
Healthy mother stock, a sterile work environment, and patience.
1.1 How much yield will I get?
Depends on the cultivar, environment, lighting, skill of cultivator, and grow methodology.
1.1 Benefits of clones vs seeds?
Clones are female, seeds can be either male or female (yes, even feminized seeds can be male).
Cloning gives much more consistent plant growth and yield characteristics.
Pheno-hunting (the process of choosing plants from seeds with desirable characteristics) is already done in the case of clones. Not so in the case of seed plants. Pheno-hunting takes real estate, time, money, and expertise.