Hey there,
we have some nice seeds from jamaica.
Not from export grass, but from a farmer in jamaica.
This seeds are for many generations in his family, crossed for many times.

Now we searching information about the caracteristics of the climate and the soil in jamaica.
With this information we want to make the shock, as small as possible.

We have found some points of difference, comparing it with Holland.

light- Cause the radiation angle is very steep, the light in jamaica has more blue in it. So more white then a sonpit bulb.
An agro son with 5000 K is them more to compare with the jamaican sun.
the UV component is in theory higher, the diference of the effective amount on earth however is very small.
The amount of sunhours is a difference, close to the equator there is a pretty constant 12/12 regime.
Humidity en temperatures are not to hard to find- we make the difference between night and day temps not to big. ( about 5-7 degrees C)

The soil is a bit poor, sofar we know now, there is not so much N in the soil.
Like some haze strains is should be bether to have a higher PH value so the P en K components are more used bij theze plants.

What makes them flowering? We learned that one of the factors of flowering has to do with etyleengas, wich has feromons in it.
A possibiltity is to put a banana in our chest...... ghehehe.... jepz, they have a high value of ethyleengas in it.


oke sofar this report.

anyone who can give suggestions wich help us, feel free......

greetz weetje

Firstly most outdoor strains dont do well indoors,they are normally very stretchy plants with minimal yield

I know from experience as ive grown seeds from jamaica

Set your room up control the temps and humidity

Buy some decent compost which there are numerous and away you go

12/12 lighting makes them flower

Dont worry yourself about,white,blue,banana's,theres really no need to complicate things

A good hps or mh will suffice,and proof of this is in many grow diaries on here...Take a look

Owd

I'd dispute the UVB levels you've mentioned there. On the equator at midday you'd be receiving roughly 500uW/cm2 of UVB at sea level and under MH or HPS you'd be receiving 0uW/cm2 I'd say that's a fairly considerable difference. That's UVB only not UVA as it's not used by cannabis.

If the soil in Jamaica is volcanic you might want to add a lot of rockdust to simulate a mineral rich volcanic soil

Hi Weetje,

I'm not too sure about the ethyline gas and pheremones(?) that you speak of.

Is that ethyline gas in a Jamaican environment and you are trying to reproduce it?

Sounds a bit far out to me.

Ethyline acts as a hormone on canna,so may stimulate flowering but can also cause sex reversal.

I've grown Jamaican land race and its just as Owderb says,much stretchiness and is best

done with clones grown 12/12 or even 11/13.

UV supplementation might well be a good idea.

tanx folks for these comments,
first i've to say that i'm an craftsman-artist- woodworker, and not so much of an mathematics guy..
so sometimes it's difficult for me to find the right words to express myself,
so when the info is from another person, it's even more difficult to do that.

I've done some thai en acapulco seeds outdoors, for 15 years ago.
with less more knowledge as there is right now.
I've some indoor grow experience and have all the instruments and ingredients to make a perfect situation.

The reason to experiment is to see what they do, and maby the plants are then being used to cross them with more compact sativa variants.
This will be done by another person.

about the banana story ghehehe...
me was told that when a plant starts flowering, (in jungle climats) a little puf of ethyleen gas is being produced.
The first plant who does this is the starter for the rest of the plants.
On wich scale this works he didn't know.

This same person told me that there is a difference in uv in the light,
but cause of a ionisation-ring (belt?) around the earth,
the effect is almost lossed.

I've to study some more to understand what i'm saying here. about the uv a and B
sorry for that.

In the past i've done some research on lights and the colour, and the effect on the plant.
i've tl in the color 6500 K. They give me plants of 12 cm. high with 11 internods (right word?)
If you compare that with a tl 2700 K. the structure of the plant gets more stretched.

So that could be a reason to use a bulb with a bit more blue in it, it should work against this stretch effect.

mineralic elements jepz tanx....

learning and learning on a sunny sunday.

greetz weetje

We're all here to learn Weetje

Did any learning get done in this thread on the ethyene gas ? As I found this thread by searching when a friend says a colleague has placed a banana in two of his grows for first 3 week of their life (6 plant then 10 plant) and had all female, as their point was a banana or two is cheaper than femmed seeds ? Waitin to flower now till I pop anymore babies but if anyone understands the science which is far to much for my country bumpkin brain please feel free to make it simple for us.
TBS

<A Homer-esque drool/gurgle emanates from a dark corner>
Galaarrgghhhhhl - Black Sheep
Best beer around, just about.

A fellow ale drinker sir ? please to meet but you say just about the best ?
TBS

Masham is just about home turf for me M8, I drank my way round that square quite often during my latter school days. Beat the hell out of more useless lessons. Still visit every once in a while.
The last time I went I got waylaid by some very fine Old Peculiar on draught, followed by various other offerings and rather superb Steak'n'Ale pie, made with Mashams finest, naturally.


I say "just about the best" because I am never quite sure. I may need to sample a few more, just to be sure.

Yup, its hard when you've not drank all of em yet innit. Still you've got to be sure! Must admit i do like a bit of black sheep though.

My advice would be give them very little feed the weed im smoking at the moment comes from Jamaica the ash is so nice the high its self is magical but the seeds have all been crushed exept 1 or 2 (in hundreds) which i dont have much hope for also like someone mentioned probably want a little less than 12/12 at some point if you dont know what the weed was like theres a chance that it could be fairly dense budding. Best of luck with them anyway.