Seed Bank Cannabis -
64 Thus lactone 122 was prepared from isoprene and
121 by a Diels-Alder reaction accompanied by decarboxylation
On reflection, it is surprising that drug development from cannabinoids did not
take place sooner
19 - Seed Bank Cannabis
Handrick, Tetrahedron Lett
el/wool must be kept moist at all times. If the material
dries out it may damage the seeds. Everyday check to see if the seeds
have started to produce any roots. If they have then immediately
transfer the seedling to a grow medium (such as soil) using a pair of
tweezers. Do not touch the root. This has a moderate to high success
rate. Out of 10 seeds 8 - 9 may germinate. The problem with this
method is that sometimes the transplant can cause the seedling to go
into shock. This can kill the germination process leaving you with
nothing. With practice you can get all your seeds to germinate.
This is a method whereby the seeds are placed in small unit,
called a seed or clone propagator, which is designed to help plants
germinate. One such kit is called a rockwool SBS Propagation Tray.
Some of these kits can be heated and look like a miniature greenhouse.
At the bottom of the tray is a small area where water, or even better
‘some germination hormone’ is poured. Small grow cubes called
rockwool cubes are placed into slots in the tray, which automatically
dips the rockwool into the solution (Figure 3.8). The seeds are placed
into tiny holes in the cubes and the cover is then put back on the unit.
Figure 3.7 - Propagation kit and Clones by Strawdog.
This has a very high success rate. All the seeds can sometimes
germinate and in most cases often do. The disadvantage to this method
is that you need to spend money on the tray, rockwool and grow
fertilizers. The price of the tray is about $10/£10, the rockwool cubes
$5/£5, the grow fertilizers $5/£5. If you have spent $50/£50 on seeds
then why not spend the extra $20/£20 on getting a small kit together
like this. The other advantage is that you can use this same tray to help
root your clones.
Figure 3.8 - Overhead shot of some seedlings germinating in
rockwool. Picture by Shecky Greene.
DANGERS WHEN PROPAGATING SEEDS
Drafts are a killer and will stunt germination. Always make
sure that you keep your germinating seeds away from any open
windows or fans. Also make sure that the room is kept warm. A cold
room can inhibit your germination rates. The other thing to look out
for when using germination fertilizers is to make sure that your
mixture is correct. Do not use high doses of fertilizers with seedlings.
In fact water is all seedlings should need. You do not need to add
anything. Some people do use germination solutions though, but make
sure that you keep these solution strengths down low. An incorrect
mixture can burn your seedlings and cause them to fail. Another thing
to do is to leave your seeds alone to grow. Do not go fiddling with
them, hence the term ‘digging up your seeds’. Some people tend to
disturb the soil to see how their seeds are doing. This is a bad move
and can break or even damage the seed and root. The other thing to
keep in mind is that some strains produce seedlings that have weak
stems. This means that the seed