FROM WHAT I GATHER
The thc, cbn cbd etc. percentages provided on a seedbanks web site are in no way to be used as a way to measure potency or effect
and nor are they meant to be.. Tho i suppose it can to an extent... (thats why most places have good writeups tho i gather). They are merely there so you can see how much of each active ingredient is found in the plant through studies, remembering that environmental aspects and things like that play a role in determining
PURITY too (there results normally come from a plant thats been in idealcercumstances more than likely).. what these are more to the point a measurement of how much pure phsycoactive ingredient there is in the plant not how strong potent or the effects it will provide.. as i said environment, care and things like that play a role too. these are just tests done in a lab that you could hope to achieve if you grow them right..
Red Dragon
The parentage of this line is exotic – a West Himalayan Kush crossed with a true breeding Brazilian sativa. (Utopia Haze) “These buds have a distinct and immediate, exotic sativa high, but is followed minutes later by a wonderful undertow of a solid Kush stone that lasts and lasts. Finished buds have a taste and smell of sweet guava fruit.
Red Dragon grows medium short, (80cm) and produces heavy colas of unique red/green buds.
Flowering time is short ( max – 9 weeks) giving big yield of highly prized product, that finishes by mid to end September.
Type: Indica / Sativa
Genetics: Brazilian. Afghani
Yield: Optimum indoor. 500 gr/m2
Indoor Height: 55 – 65 cm
Indoor flowering time: 65 to 75 days
Outdoor harvest time: Mid/End September
THC: 23%
CBD: 1.2%
White Widow
£4.62 per seed
€5.19 / CAD$8.23
This Widow has a moderate THC content and yield, but absolute connoisseur quality. It offers a strong Indica kick and an ever-present Sativa head-high, combined with a clean, smooth smoking flavour.
Awards: 1st prize Bio HTCC 1995.
Genetics: Brazilian and South Indian.
Effect: A relaxing indica feeling that evolves in a bursting sativa high. Very complex and enjoyable.
Flowering indoor: 8-9 weeks with a yield of 400 to 600 gr/ sqm.
Flowering outdoor: Ready in early October above the equator; in May in the Southern hemisphere.
THC: 12%
CBD: 1.4%
CBN: 0.6%
Durban Poision
Durban Poison is an F1 crossing of a Sativa strain from a secret garden located just outside Durban, South Africa and a potent, early Dutch skunk. This strain grows tall with huge leaves. Long, tight buds have a sweet earthy flavor that has a hint of anise. Famous for its trippy high!
Plant type: Best suitable for outdoor growing.
Plant height: Tall, mostly Sativa.
Stoned or high: Sativa high, cerebral buzz.
THC level: Moderate 5-10%
Flowering Weeks: 8/9 weeks.
Yield: 450 grams (Sea of Green on one m2).
Harvest Month: 9.
Grow difficulty: Easy (good for beginners).
info courtesy of pick and mix seedbank

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righteo we all know that durban poison whilst generally having a pretty low thc percentage rating can knock your socks off better than a shitty grown white widow ever could.. again grow environment most likely..
all there saying that through tests they have found that in good conditions 10% of the plants active ingredient was thc.
REMEMBERING
it doesnt matter if they done the tests with 1 resin gland or 1000000, 2gs of pure extract/resin or .00002
they are only after percentage of psychoactive ingredient such as thc and cbd present in the tests.
not how potent it is or its effects, these are another story.. again the environment and genetics plays a big part in this. you may not get the same results as the labs but you should be close if you do things right.
theres more to a stoned than meets the eyes ppl lol ><

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as you can see this info along with the right ups is helpful to grower if you understand wat it means and have a good write up.
i hope i explained it well enough i was trying to simplify it i hope i didnt lose too much in translation lol...
if im wrong please correct me..... ill also get around to writing it out better sometime hopefully. i fear i did fuck up but hey ya get that i tried.
i did have a better copy but i got logged out and shit fucked up. thats y yas get this shitty version
sorry about that
peace out
j88