onsdag 13 oktober 2010

Stratification of Sequoiadendron Giganteum ( mammutträd på svenska)

Time to make it right this time. And time is the lead word for this post.
When it comes to growing up trees of the species Giant Redwood Tree ( http://en.wikipedia.org/wiki/Sequoiadendron ) from seeds a specific stratification period will be required. I did my reading this time. Here is some background. Apparently the Giant Redwood Tree requires a cold period imitating the winter months in its natural habitat. This means that to be able to unlock the genetic code of the seeds, and to see some sprouting, one method is to have the seeds in cold temperature for 1-2 month ( there are a lot of opinions regarding this issue and this post should not be viewed as the ultimate recipe for success).

( Giant Redwood Tree in Yosemite USA )
Now, this can be done in different ways.
Option one)
It is to have the seed in a small container with soil. This after having let the seeds soak in water for 24-48 hours. Then you put a plastic bag around the container so the moisture wont let go and put the container in the fridge. Optimal temperature is supposed to be around 1-3 Celsius degrees. For those of you in USA it is 32 + x*1,8. In which is x is 1 to 3 Celsius degrees. More about Anders Celsius can be read here http://sv.wikipedia.org/wiki/Anders_Celsius  ( the cultural input taken care of with this link). Of course you have to make sure fungis do not take control of your precious treasure.

The second way. And the way I prefer it. It is to use the temperature of the season. Late Autumn is perfect for opening up the genetic lock of the Sequoia seeds. You do the same as above but put the container outside. The temperature will vary for sure. That is not an issue. But after you have let the container endure some cold for a month or two. You can take your precious container inside to imitate spring. The theory is that when the seeds feel the warmth after a LONG COLD period they will sprout. I confirmed this with my good friend James Bonet. We think this will be a good method. My regard to Milos, my job colleague for reminding me to make an input on this issue. Thanks Milos!

Now, you might ask yourself. " Michael, did you succeed with this method yourself?"
The answer to that is that I will know in 3-4 weeks.

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