KingJohn seed lessons and links:

KingJohnC;2052840 said:

I believe the information on cannabis sex being determined by temperature is in The Marijuana Growers Bible.

Here are some 420 Magazine links with information

https://www.420magazine.com/community/threads/seeds-female-male-can-you-tell-difference.197937/

https://www.420magazine.com/community/threads/can-t-afford-feminized-seeds-make-your-own.130870/

https://www.420magazine.com blogs feminised-cannabis-seeds

Increasing chances of female plants from standard seeds - Blogs - 420 Magazine ®

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