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?Knowledgeable with C99 n Sensi Star origins n temp

littleone

Member
Hi

I am looking for these varieties place of origin and more specifically what there optimum and maximum growing Temperature tolerances are.
(Round about)

It would be good if I could get some feedback from the breeders but also your experience maybe helpful to me.

For example our loca Sativa grows fine in constant periods of 40 Degree C, even tolerates 45 Degrees C.
This can not be said for many commercially breed varieties even from my limited experience.

So I guess you could give different plants a rough rating system of 0 to 10.

0 being good tolerance at 30 Degrees C :badday:
10 being good tolerance at 40 Degrees C :rant:

On this scale our sativa would be a 10.

?Sound Interesting.
Hope to get a few Breeders interested and some feedback for my specific varieties.
C99 and Sensi Star.

Cheers (back when I can, please feel free to start without me :jump: :jump: )

:joint:

Some generalized information and thoughts on temperature to contribute to the post.

Experimentally some South African plants were found to have the highest level of THC when grown at constant 75 F / 24 C.
There are many factors including temperature that can determine THC and yields in the uncontrolled natural environment.

Lifting soil temperature a few degrees C above air temperature can increase growth rates for moderate temperature ranges.

Peak rate of growth for some cooler region plants is about 80F or 26.6C Ambient, other strains near the equator peak at about 90F or 32.2C yet there are a lot of much hotter environments growing healthy cannabis.
The Plants ability to acclimatize, with no doubt extends the upper range of temperatures for some varieties and individuals.

There may be no growth once a plant species reaches its maximum tolerance.
A Plants temperature tolerance before going into survival mode depend on variety but could be in the region of about 105 F or 40 C , some varieties may continue growing even at above these temperatures.
Plant yield can suffer at these temperatures.

Potency can be high for some varieties grown in a hot environment which brings in the question of how other outside environmental aspects affect the plant.

There is one distinct difference between the inside and outside?
That of light: differences in spectrum, intensity and in the type and level of UV.

High light intensity and temperature may alter the plants upper limits, were lowering the light intensity can reduce the plants metabolism and temperature tolerance.
High natural UV could also play a role; UV in nature would likely not result in a 24 hour damage and heal cycle for the plant but a built tolerance along with some chemistry changes.

A good soil temperature to germinating warm climate cannabis seeds could be 80°F or higher, this is equal to 26.6 or higher in Celsius.

Knowledge in plant tolerances can be invaluable for determining the best planting time and maturity for the environment or to alter the environment to better suit the plant.

I look forward to learning specifically about the flagship varieties such as C99 and Sensi Star.

Cheers
 
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G

Guest

Luke keeps the pedigree of sensi star a secret. But a little bird told me it was a hybrid of silver pearl directly from Sensi Seeds years ago.

How true that is? I dont know. Best working theory Ive heard on it though.

Sensi Star is legitimate.


C99 ofcourse is a Jack Herer related variety, with some selection/work done with it.
 

marijuanamat

Crazy X Seeds Breeder
Veteran
Sensi star is either a ortega indica x skunk or afghani x skunk Inbreed and BX'ed to the affy/indica,wether its right or not i'm not 100% sure.
I doute either variety will cope well with 40c+ temps.
 
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littleone

Member
Thank you for your input.

I had considered that the exact breading 100% assured would possibly not be shared and even your grapevine info is very welcome and might help with general traits of a breed.
I will try to learn more about the origins and traits of the types you list.

My interest is more in general and is not specifically related to my environment.
More it is the suggestion that such information is a powerful tool to all growers and ?could? be added in the breeders notes for the grower of there varieties.
As we all know inside and even outside environments can be changed or modified.

I have included a little rant on the subject that I wrote last nigh, not gospel or even meant to be totally accurate but a set of generalized points for your interest.

Is there anymore knowledge on the plants native temp acclimatization that might help further.

Cheers
 
G

Guest

Just to go a little bit further

C99 has its origins in seeds found from Jack Herer, which is the result of a union between haze, nl and sk.
 

littleone

Member
With many thanks

With many thanks

I have submited a more refined version of the idea in ICM magazine submissions section to see if it has legs.

I thought it might not be accepted if I were to double up to much in the posts so the modified notes are only in the magazine submisions section

The Tittle is Proposed Peak Temperature Growth Rating System

Not sure yet if I would be allowed to make a link here pointing to it so thought best not to.

I would be very appreciative if you would like to have a look and contribute your thoughts?

Regards Littleone
 
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littleone

Member
A question I meant to ask but got sidetracked-

Of the 2 varieties C99 and Sensi Star could you give your opinion which would have the highest Peak Temperature Growth Rating?

Cheers
 

marijuanamat

Crazy X Seeds Breeder
Veteran
I can only tell you from my experiance with sensi star that she can handle temp's upto 38c/40c,which i found out when i first started growing indoors but 1 day my 8" ruck blew a fuse and the temp reached 48c before i noticed and i lost 2 out of 3 sensi star fem's(all from the same mother) dew to the roots getting cooked but my original haze & malawi gold pure sativa's didn't seem to be effected by the high temps.
 
G

guest123

littleone said:
A question I meant to ask but got sidetracked-

Of the 2 varieties C99 and Sensi Star could you give your opinion which would have the highest Peak Temperature Growth Rating?

Cheers
well if you want to know if c99 will cope with your conditions outdoors , yes it can ,, but its up to u to provide the right growing mediums mulch etc that will make it possible ..
i have grown it many times in conditions as u describe , up to and exceeding 40 c , and as long as u keep the soil as cool as u can , and water up to them they can handle it no worries .... i wouldnt recommend pots as an ideal way to grow in those conditions , im sure youll be putting them in the ground though ???
 

marijuanamat

Crazy X Seeds Breeder
Veteran
Yer best wacking them in the ground to help keep the roots from cooking in pots,which can get alot hotter then the surounding air temp on hot sunny days.(especially black pots).
 

littleone

Member
Thanks for your replies.

I thought I should state, just so you know a little about me:
I grow produce Veg n Trees commercially, have done from a child with my family growing up with farming.

It is interesting to find others with knowledge and interest.

Slightly diferent subject is all. :wave: :wave:

Good stuff
 

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