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What couldve caused my last grow to have low potency

I had 3 different plants from seed grow nicely, no problems what so ever during this grow period. They look, smell, taste good, but have little potency. This is my 3rd crop, first one came out fine,2nd one got lost to pm, and this one i thought would be better than the first. I used AN nutes throughout. Same as I did the first go around. Any reason you can think of as to why they are weak.

Only thing i can think of was i went away for 6 days in the 2nd to last week before harvest and when i got back they were droopy but recovered nicely.
 
The plants was harvested on day 73....trichomes were creamy not amber or clear. The temps where higher than they should be...avg 78-88.
 
Temps were too high IMHO. In my experiences, Cannabis just stops growing if it gets too hot (which it did). Lower those temps (realistically, keep it below 80 F) and try, try again! Best of luck.
 

Dislexus

the shit spoon
Veteran
the droop probably didnt help but its not a cropbuster. how bad was the droop tho..

droop may have delayed maturity no?
 

Euphrates

Member
If it hermied or reverted back into veg would cause such a thing . Also what others have said- Genetics, growing environment, delay in growth due to poor conditions

Have you ran whatever strain your complaining about before ?
 

GoneRooty

Member
Cannabis just stops growing if it gets too hot
^^^^ Ummm no it doesn't!!! Or maybe mother nature forgot to tell all the cannabis growing in Africa, Afghanistan/India or Thailand?

About the potency of your plants being less, it could be a number of things like others said, genetics, maturity of the buds. You said trichomes were creamy but not amber, you should wait til about 50/50 amber/milky trichcomes, this gives you a very even head/body high. The genetics of the strain plays a huge part in potency, was it an indica or sativa? Some landrace sativas can go as long as 18weeks in flower before they're ripe.
 
One of them (white widow) seemed like it may have been in the early stages of hermie, and thats the one that seems the weakest, so does that mean i flowered them too long? I said 7-8 weeks (56days) And I harvvested at day 73
 
The droop wasnt too bad, they made a full recovery in a few hours.

This is the first run with these strains....white widow, northern lights, mobey dick....MD is def stronger than the other 2 and seems like it decent in potency but still not as strong as it probably should be
 

GoneRooty

Member
If it's your first run with those strains, it very well could be you had something with better genetics before. The 7-8 week flowering time is suggested, it could take longer, that's why you gotta go by trichome color.
 

High Country

Give me a Kenworth truck, an 18 speed box and I'll
Veteran
The hemp plant grown for paper or rope production has no high at all.....but it is the same species....a strain with higher THC-CBD content is required.

There are so many crosses out there it's hard to know what you're getting unless from a reputable seed company.

Sometimes you get lucky with bagseed....I certainly did.

If you can, get clones or seeds off a strain that does the job for you.
 
^^^^ Ummm no it doesn't!!! Or maybe mother nature forgot to tell all the cannabis growing in Africa, Afghanistan/India or Thailand?

Huge difference between SURVIVE and THRIVE.

Both excessively high and low temperatures can slow marijuana's rate of metabolism and growth. The plants function best in moderate temperatures - between 60 and 85 degrees. - Ed Rosenthal
 

Phaeton

Speed of Dark
Veteran
A note about budding them an extra 2 weeks.
Occasionally I have been unable to harvest on time. Once it took 6 weeks past due to finish a tray. The plants never did hermie, they just started getting mushy soft about 3 weeks overdue, and that was about when they also started losing potency. At 4 weeks the difference could be noticed and 5 weeks past due it had to be considered weak pot.
Budding an extra 17 days would not affect my sativa plant in the least, takes them about 35 extra days to start losing it. My nickels worth. :kitty:
 

GoneRooty

Member
Huge difference between SURVIVE and THRIVE.
Photosynthesis is a chemical reaction, all chemical reactions speed up as temperature increases (roughly 2x for every 10*F increase). The limiting factor in photosynthesis is CO2, NOT TEMPERATURE!!!

So you're trying to tell me that cannabis doesn't thrive in Thailand or Afghanistan? It only survives? Every Kush strain is a descendent of landrace strains from the Kush mountain area of Afghanistan, where it THRIVES in temps in the 100's*F. And how many strains have Thai genetics in them? Cannabis THRIVES in Thailand in the 90-100*F temp range. Just because someone wrote something a long time ago, doesn't mean it is correct.

http://www.youtube.com/watch?v=4tEQI5n6mn8

So the plants in this field in Afghanistan are only "surviving"? They look pretty happy and "thriving" to me!
 
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THC123

Active member
Veteran
yes but there is a big difference between such high temps in an indoor room under a lamp or those temps under the sun


under a lamp with those temps the plants do indeed grow well , and the buds will look good , but they will be a lot less sticky to the touch tasty and potent , so they wont thrive , they will look good , but squality wont be that good , something will be missing
 

GoneRooty

Member
@THC123, No they won't as long as they have ample CO2! CO2 is THE limiting factor in photosynthesis. This means that there usually isn't enough CO2 present to allow the rate of photosynthesis to increase. Give your plants enough CO2, H2O, and food, and temps become pretty immaterial. Remember people, plants "breathe" CO2, don't give a human enough O and they will have a hard time functioning as well, same with plants and lack of CO2. Give those plants some added CO2, even indoors under a lamp, and they will function just like plants grown outdoors in the sun. Photosynthesis is still the same chemical reaction, whether indoor or outdoor, the chemical reaction doesn't change.
 
Very sorry! I missed the part where the OP said he grew outdoor in Afghanistan (or Africa) and enriched with CO2. Apples and oranges. Straw man argument.

Seek first to understand, then to be understood - Stephen Covey
 

GoneRooty

Member
Straw man argument.
How do you figure since I was refuting your claim that cannabis stops growing at higher temps?

Cannabis just stops growing if it gets too hot

I didn't invent any special situation, just proved your claim wrong. It's very simple chemistry sorry if you can't understand it but I'm done arguing a point you obviously will never understand :thank you:
 

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