24 hour dark period before harvest

[Revanche21]

opinions? experiences? thoughts? your couple pennies?

Revanche21 Reviewed by Revanche21 on 11-30-2008. 24 hour dark period before harvest opinions? experiences? thoughts? your couple pennies? Rating: 5

[Hennessy1414]

how many threads on this now? :wtf:


P.S. HENNESSY IS BACK BITCHES. yall really helped with my first two grows...thanks a million!

[DOUGAL25]

two words : do it

[Revanche21]

how many threads on this now? :wtf:


P.S. HENNESSY IS BACK BITCHES. yall really helped with my first two grows...thanks a million!

im having trouble searching the forums for some instructional/explanatory threads

can you point me to some threads peaz :jointsmile:

[AfricanAlien]

Here is some good info!!!

This is a from an Interview with Adam of T. H. Seeds

before you put your garden into flowering from 18 to 12 hours, give the plants 36 hours of darkness; by doing this it, will reset the plants natural body clock. After 36 hours (or anything between 24 and 40 hours) the plant will go straight into flowering rather than adjusting from 18 to 12 which in some strains can mean an extra few weeks. When the plant is finished give it another 36 hours, this will reset the body clock again this time the plant knows it is finished and will push out all remaining energy into its last trichome production try it.

:rastasmoke:

[Lit Up]

Interesting, I'm assuming that would work on clones. I'll have to give it a look-see.

[Rusty Trichome]

This is a from an Interview with Adam of T. H. Seeds:
"before you put your garden into flowering from 18 to 12 hours, give the plants 36 hours of darkness; by doing this it, will reset the plants natural body clock. After 36 hours (or anything between 24 and 40 hours) the plant will go straight into flowering rather than adjusting from 18 to 12 which in some strains can mean an extra few weeks. When the plant is finished give it another 36 hours, this will reset the body clock again this time the plant knows it is finished and will push out all remaining energy into its last trichome production try it.":rastasmoke:

If the strain is stable...likely it (the darkness technique) isn't doing harm. However, I'm very doubtful about the assumption that a cannabis plants response to darkness is to increase trichome production. Increased trichome production has nothing to do with darkness, or lack of light, and if there is no genetic cause-and-effect, doubtful the technique is valid. To me, it makes more sense that the darkness period could possibly reduce the quantity of trichomes needed to protect the leaves from the sun, and increase the desire of the plant to start an emergency pollination. (forming nanners on females, is an evolutionary trait designed to self-pollinate during times of extreme stress, thusly assuring the survival of the species)

Knowing what trichomes are for (or believed to be for) may help here.


"Purpose of the Trichome:
For evolutionists, the purpose of the trichome, or the reason the cannabis plant evolved to have them, is a topic with many speculations. Of course without understanding the basic activities of the secretory cavity, it is not possible to truly understand their purpose. Some of the current theories require the use of cannabinoids, while others do not, it is possible that all the theories are true in part, or all of them make up the true purpose.

Insect Protection:
Many insects find the thick coating of trichomes unpleasant, this offers a level of protection for the developing seeds.

Animals:
The layer of trichomes and cystolith hairs (similar to bladder stones, calcium carbonate deposits) makes cannabis less palatable to many herbivores & omnivores.

Desiccation:
The layer of trichomes helps to protect the pistilate (female) flower from drying out, while in environments with low humidity levels and/or high wind.

Sunlight:
Extensions of the epidermis (outermost layer of skin) of the plant, that provides shade and protection. UV-B Light:
UV-B light is harmful to living things, THC has very high UV-B adsorption properties, thus cannabis evolution may have favored the evolution of genotypes that produced these THC laden capitate-stalked trichomes as a built in 'sun-screen' for protection against UV-B light rays.
Fungal Protection:
Some of the compounds present in the trichomes actually inhibit the growths of some types of fungus.

Humans:
Human modification of the plant , favoring species that produce copious amounts of THC laden Trichomes.

Human Attraction:
Similar to the method that flowers use nectar to attract insects to spread pollen, cannabis exudes resin, to attract people, in order to spread its genetic material around the world. (I'm not too sure cannabis plants are that organized)


Harvesting Trichomes:
Capitate-stalked Trichomes, as you now know, is the location of the primary production of cannabinoids. Harvesting Trichomes, is in fact, harvesting the resin, for medical or recreational purposes. The time to harvest, is a debated one, as different growers, strains and environments will have different determinations of when it is best to harvest. In addition, what you are attempting to achieve, will also change the harvesting process for you. For example, if looking to experiment with other cannabinoids, other than THC, harvest times will differ if you are looking for maximum THC content.

Firstly, you must remember that large amounts of trichome production, does not necessarily mean a potent plant. In specific strain, this may increase the chance of a higher potency, but this is by all means, no guarantee.

Secondly, obtain a pocket microscope with at least 25% zoom, so that you can get a closer look at your trichomes. Specifically looking at the secretory cavity, most strains will start off with a clear or slight amber colour, than gradually become opaque or slightly cloudy.

Thirdly, is to determine when you will harvest. Some growers will harvest once the majority of secretory cavities are clear, in order to capture the peak of produced THC cannabinoids. Though, others will wait until half of the cavities turns opaque, which may have a very high THC content, but also have additional types of cannabinoids such as CBN.

It is important to note that the harvesting window will vary, for example with sativa and indica/ Sativa hybrids you may have 10-25 days to harvest, while indica varieties may have between 10-15 days. There is no real danger to the plant in missing the harvesting window, though you may have to wait until the next harvest window to harvest resin with a high THC concentration. There is benefit to the plant and the environment by allowing it to grow for a longer period, and in fact simply collecting resin and allowing the plant to live, is a much better method than chopping up the plant, as you can make pure hash amoungst other things."
Trichomes - the source of Magic - Woyano

I guess you could say I'm a doubter that using darkness before harvest to promote trichome growth, development or psychoactivity, is a valid technique. Perhaps if the technique was combined with certain lunar phases...lol. (kidding)

[Revanche21]

Wish I could rep you again Rusty!

thanks for the save once again

the darkness thing did sound a lil fishy:jointsmile:

[Rusty Trichome]

Thanks anyway for the attempted rep, lol.

Keep in mind that these are my opinions on the subject based on what I have read, and what does/does not make sense to me. Some folks will swear by it, but can show no proof of validity other than to profess that it is true. Same goes with other 'techniques', such as pyramid power, phases of the moon, astrology, kabbalah, balah, balah, balah...

Altho I'm sure these <ahem> techniques are harmless in themselves, but I believe they should not be a substitute for sound (advanced) gardening techniques. Old wives tales will only take you so far. :thumbsup:

[Revanche21]

Thanks anyway for the attempted rep, lol.

Keep in mind that these are my opinions on the subject based on what I have read, and what does/does not make sense to me. Some folks will swear by it, but can show no proof of validity other than to profess that it is true. Same goes with other 'techniques', such as pyramid power, phases of the moon, astrology, kabbalah, balah, balah, balah...

Altho I'm sure these <ahem> techniques are harmless in themselves, but I believe they should not be a substitute for sound (advanced) gardening techniques. Old wives tales will only take you so far. :thumbsup:

Yea ill stop lighting the day before i harvest just because I tend to do my lighting during the night and night period during the day

just for the sake of easiness