woodsmaneh
- 1,724
- 263
Here is some info I found and it's a great guide to go by, I also top all my plants and most of the time the day of flip. It is better to do it 1 week before flip but I'm lazy sometimes. If you top at flip you will still get some tops shooting up and you need to bend them over, if you top 1 week before this does not happen so much. Not a big deal but there is a difference.
The 40/60 Phenomena
The 40/60 Phenomena are events observed during the indoor cultivation of flowering cannabis, and when using a strict 12 hour inductive photoperiod (aka 12/12). The events start with the first day of the inductive stage (12/12), and end on the day a mature crop is ready for harvest, collectively this period of time is called the Days Spent Flowering.
Stretch Phase (early flowering)
The stretch phase is a period of time during early flowering where rapid extraordinary outward growth takes place. Some growers have reported seeing 5 inches of growth in a single day during the stretch. This phase is characterized first by the extraordinary growth accompanied by longer than usual internodes, then the explosive outward growth slowly tapers off as internodes shorten. The end of the phase is signaled when growth tapers down to approximately 1/2 inch or less per day. This coincides with a time span equaling 40% of the total Days Spent Flowering. At this point growth shifts from outward to building bulk on existing growth, otherwise known as late flowering or the fattening phase.
Fatten Phase (late flowering)
The last 60% of the inductive phase is a period where outward growth is less significant. In fact, it can appear as if growth has stopped completely due to the very short internodes. During this phase a more complex set of growth activities occur. It's not much different from an apple tree that stopped producing new apples and is now devoting its remaining time to maturing or ripening the apples it already has. With female cannabis, flower production accelerates, floral clusters begin to grow wider or fatten, resin production increases and peaks, sinsemilla calyxes plump, pistils start to wither and change color, and not long after that the plant is ready for harvest.
How To Use The Phenomena
The time-table of the stretch and fatten phases are important events for cultivators growing an unknown variety for the first time. The two most common anxieties for indoor growers during flowering of an untested variety are....
The 40/60 phenomena relate to two milestones.
You can find the calculator here
http://www.angelfire.com/cantina/fourtwenty/articles/4060.htm
The 40/60 Phenomena
The 40/60 Phenomena are events observed during the indoor cultivation of flowering cannabis, and when using a strict 12 hour inductive photoperiod (aka 12/12). The events start with the first day of the inductive stage (12/12), and end on the day a mature crop is ready for harvest, collectively this period of time is called the Days Spent Flowering.
Stretch Phase (early flowering)
The stretch phase is a period of time during early flowering where rapid extraordinary outward growth takes place. Some growers have reported seeing 5 inches of growth in a single day during the stretch. This phase is characterized first by the extraordinary growth accompanied by longer than usual internodes, then the explosive outward growth slowly tapers off as internodes shorten. The end of the phase is signaled when growth tapers down to approximately 1/2 inch or less per day. This coincides with a time span equaling 40% of the total Days Spent Flowering. At this point growth shifts from outward to building bulk on existing growth, otherwise known as late flowering or the fattening phase.
Fatten Phase (late flowering)
The last 60% of the inductive phase is a period where outward growth is less significant. In fact, it can appear as if growth has stopped completely due to the very short internodes. During this phase a more complex set of growth activities occur. It's not much different from an apple tree that stopped producing new apples and is now devoting its remaining time to maturing or ripening the apples it already has. With female cannabis, flower production accelerates, floral clusters begin to grow wider or fatten, resin production increases and peaks, sinsemilla calyxes plump, pistils start to wither and change color, and not long after that the plant is ready for harvest.
How To Use The Phenomena
The time-table of the stretch and fatten phases are important events for cultivators growing an unknown variety for the first time. The two most common anxieties for indoor growers during flowering of an untested variety are....
- Running out of headroom or grow space due to unanticipated growth.
- Being unable to predict the harvest date in advance.
The 40/60 phenomena relate to two milestones.
- The Duration of the Stretch
- Days Spent Flowering
You can find the calculator here
http://www.angelfire.com/cantina/fourtwenty/articles/4060.htm
