The Marijuana Grow Book: A Step by Step Guide to Cultivating Phenomenal Cannabis Indoors and Outdoors by Ridley Reefer

The Marijuana Grow Book: A Step by Step Guide to Cultivating Phenomenal Cannabis Indoors and Outdoors by Ridley Reefer

Author:Ridley Reefer [Reefer, Ridley]
Language: eng
Format: azw3
Published: 2020-05-04T16:00:00+00:00


​ During the preflower phase if you want to check the sex of the plant you will need to take a cutting and force it to flower by allowing 12 hours of light followed by 12 hours of darkness. This is also known as the 12/12 schedule.

The 12/12

The 12/12 is an important physical way for the Marijuana plant to know when to flower in the wild. Marijuana grows naturally in the wild from the months of April to October or November depending on the country. In the autumn months of September to November the plants will start to flower. During these months the days are becoming shorter and the nights are becoming longer and there will roughly be 12 hours of daylight and 12 hours of darkness. When this happens, the plant will know it’s time to flower and will naturally begin to flower on its own. During this photoperiod, the plant will produce bigger flowers as well as more flowers. So, if we want to flower the plants and produce lots of flowers, all we need to do is put the plant under this 12/12 schedule by turning out lights on for 12 hours followed by turning it off for 12 hours. You can do this yourself or better yet you can use a timer if you’d like to automate it. You will want to put your plants under complete darkness, even a desk lamp can cause your plants not to enter the flowering stage and remain in the vegetative stage. You’ll need to make your grow area completely lightproof; pitch blackness is the what you’re aiming for.

​ Some of you may have sealed your rooms to be lightproof already by keeping your grow area in a light reflective area by using Mylar or white walling. If your grow room isn’t completely light proof, you can do a quick google search on how photographers in the old days developed their film in the old days. They would have had to made their rooms pitch black. You would et thick black screening to cover any points of the room where light can come through, this means any windows and doors.

​ There can be problems with the 12/12 if you go to it too early before your plants are in the pre-flowering phase which include: Hermaphrodite plants, and abnormal bud growth. Early Flowering is when the plant thinks it might not get a chance to reproduce because it started to grow too late in the season whilst all the other Marijuana plants are in the flowering phase it is still in the vegetative growth phase. So, what it will do is it will become a plant that has both genders with both male and female flowers and self-pollinate because it thinks it has missed its chance to receive another plants pollen if it’s female or pollinate another plant if it’s male. In the wild the male plants will begin to flower slightly before or at the same time as the female plants are flowering.



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