Advanced Cannabis Breeding, Selecting A Male
Male studs are highly sought after in the cannabis breeding world. The main reason for that is that it is hard work to find a true breeder male because you cannot directly observe the female traits that a male will pass on to its offspring.
Just by looking at a random man in the street, would you be able to guess his future daughter’s bra size?
Trying to figure out what female attributes a male cannabis plant will pass on to its offspring is almost as difficult.
Fortunately, there are a few things that can increase your likelihood of finding the right male stud.
Let’s find out what they are!
Pick The Winners
Cannabis breeding is rife with myths and urban legends. In this article, we will go over some useful proven tips to help you pick the winners.
Males that flower the fastest are not necessarily the most desirable. Oftentimes, the males that show sex first, flower too quickly or get too tall have to be culled out. That is because they put more energy into fibre production than flower and cannabinoid production.
Keep in mind that the most accurate way to know whether a male could be a breeder male is by growing out its offspring and observing the females.That being said, it may not always be feasible to grow out the offspring of all your males. It would take up a whole lot a space and be very labor intensive.
This quick tutorial will help breeders narrow down the number of potential male studs so as to save time, money and energy.
Desirable traits In The vegetative phase:
Stem smell is a great indicator. It can give you a pretty accurate idea of what terpene profile a male will pass on to its offspring. On top of that, If you do a stem rub on a young male and get a strong smell, then it would be a great sign, as trichome production and flavor are often related to plants that produce strong aromas early on.
Vigor is especially important when creating an inbred line (IBL). When doing so, you have to maintain as much vigor as possible while reducing the amount of genetic diversity with each generation to make the strain more and more uniform. In order to optimize your space, you can cull out all the plants lacking vigor early on.
Plant Structure And Sturdiness
Desirable Traits During Flowering:
Increase Your Chances Of Finding The Right Male Plants
Reversing Male Plants
It is possible to reverse male plants just as you would female plants. Using an Ethephon spray. Ethephon is a plant growth regulator that acts by causing the release of ethylene. Its toxicity is very low. After spraying Ethephon every day on a target male plant, it will then quickly convert the Ethephon into Ethylene and start producing female flowers. This is very useful in order to gauge what types of qualities (Floral clusters’ structure, smell…) it could potentially pass to the female offspring.
Stress-testing The Males
Smoking The Males
Some breeders like to smoke their male plants in order to know which plants have the best potential. Because male plants generally have low-levels of cannabinoids, it is not easy to do an accurate smoke test. That being said, it is one more trick you can use in order to make the best choice.
Lab-testing The Males
Lab testing several male plants can be costly but it is by far the most accurate method. It will give you the exact cannabinoid level and terpene profiles of your males. By using some of the tips and tricks aforementioned, you can greatly narrow down the number of males you will have to lab-test.
Separating each male (Pollen contamination)
Before using a male for pollinating a female, isolate that male for a few days in an individual grow tent/grow box. Since pollen flies everywhere, leaving a male plant amidst other males up to the pollination day will result in pollen contamination.