when does marijuana start flowering?

[slater]

everone knows that if you put your plants on a 12/12 light regime that they will flower. my question is when does mj begin to flower...and does all mj strains start this process at the same time or do some strains( besides lowryder) actually start flowering sooner than other varities?


if im not stating this question clearly let me know and i will elaborate. :D

[buddyh]

About 75% of the strains here are auto flowering and they're not lowryder.

[anonymous]

Dont they usually start flowering after the veg.cycle.??? sorry sorry just messin with ya slater

[pflover]

pure sats often won't even flower at 12/12 and need at least 11.5/12.5 if not 11/13. then there is lowryder that autoflowers under any light conditions. indicas can very widely. some are able to flower under as much as 16hours light. the general cut off point of most strains tho is considered 14hours light i do believe. flowering under more than 12 hours of light while remaining within a 24 hour cycle will cause the plants to take significantly longer to mature.

[Marco Renda]

After 1 week of 12/12 they will start flowering

Marco

[Grant]

Outdoors you'll see them begin to flower in the last week of July to first week of August. Indicas will show first at around 15-14.5 hrs. Check a weather site for your area, one that has sunset/sunrise. The further North the longer it takes. The change isn't as sudden as indoors so you'll have to look a little closer.

[Dr.Smitty]

Good answer Grant . . .

You can flower anytime if you can "cover" your grow for 12 hours of darkness but make sure you're leak proof or you'll have hermie issues !

[anonymous]

Good answer Grant . . .

You can flower anytime if you can "cover" your grow for 12 hours of darkness but make sure you're leak proof or you'll have hermie issues !

I so hate it when this happens

[slater]

pure sats often won't even flower at 12/12 and need at least 11.5/12.5 if not 11/13. then there is lowryder that autoflowers under any light conditions. indicas can very widely. some are able to flower under as much as 16hours light. the general cut off point of most strains tho is considered 14hours light i do believe. flowering under more than 12 hours of light while remaining within a 24 hour cycle will cause the plants to take significantly longer to mature.


thats kinda what i was looking for thanks pflover

[WongBong]

I've just posted an article on how plants know when to flower. Informative, yes. Useful? I dont know, you tell me :)

[Cakes]

I've heard of some indica's that were kept under 24 hour light until they flowered and some took 5 months and some took 7 months to start flowering and another ran little later and finished at 9.

[pflover]

cakes, flowered or sexed?

i've never seen an indica that was not part lowryder or rudi actually FLOWER under 24 of light. that would be worth seeing i do beleave.

[Cakes]

It was my understanding that all three instances yielded buds.

One report is from someone I know and I was able to question him. He grew many plants under an incandescent bulb, all but one failed. That one was kept under 24 light until he figured it was done. He said to me,

"It had huge buds!"

upon closer questioning it appears that the buds were large popcorn sized buds of considerable density on a plant 3 1/2 feet tall and 8-9 feet around.

The other two reports I heard were on the net and I did not get to ask follow up questions but one grower sounded as inexperienced as my friend and had left the light on with the idea that it was all good. That grower sounded happy with his buds, just a little disgruntled that no one had told him to use 12 instead of 24. No yield was published.

The third report came from an experienced grower who said he had simply forgotten it (his plant) and so somehow it had recieved 24 hours of light up until the age of 9 months when the grower pulled it; he sounded simply vaguely interested in the odditry of a plant that budded w/o a decrease in light and his terminology made me believe that he had harvested an amount worth bothering over.

they all could have been tropical crosses or throwbacks


If you brought a plant to the sexing stage and then turned it into a foliar (or other) feed for cuttings, do you think the cuttings would sex immeadiately?

or would one in the garden bud in July for you?

[2012]

The third report came from an experienced grower who said he had simply forgotten it (his plant) and so somehow it had recieved 24 hours of light up until the age of 9 months when the grower pulled it


What about water? Fert? I'm callin BS on that one. An experienced grower doesn't 'forget' about his plants, and if he does they won't survive long enough to bud.

[Cakes]

I think the story went like this:

The fellow grew a crop of seedlings and when it came time for switching them to the budding room, he found a runt that he decided to leave vegging. This esteemed fellow gardener then went on vacation but forgot about the vegging runt. Like as in however the plants were cared for, he made no special provisions for the vegging runt to be moved to the flower room or whatever.

Later, when he returned from vacation and such is when the budding took place and in his post he expressed amazement at the Fact that it had budded on it's own, even though it had been forgotten under long light.

and dude, the words you were searching for were,

"Gosh, I wonder at the details of that story because I can't quite picture it.."

even tho I am a Taurus

[pflover]

sounds like a rudiralis plant. but maybe not...

as for the incandensent, i am beginning the believe that based on a report by salmayo about LEDs and 24hr budding using the spectrum to induce flowering and not the light cycle.

[sweetstik]

polyploid?:cool:

[sweetstik]

polyployd i mean

[sweetstik]

;) i manipulated the plant ase directed in the study of polyploid plants seems to be working i will be getting a better cam next weekand you can see its hard to believe this clone is 2 weeks in dirt 24h light hase frost as promised from the bottom to top and hair this is the 7th time iv tried this each time a little better verry sticky meds:D
good growing peace

[Real420]

I have also seen the phenom of 24 hr light budding. Awhile back I had a mother that had been vegging for about 8 months and I had been snippin cuttings (of course). After awhile under the same conditions the mother started to bud. This bummed me out mostly because she was huge and i did not have room for her. To make a long story short she finished. I went checking thru my grow room and made the discovery that there was a place where a very cold draft came through. It was in this exact spot that the mother started to bud.
Pure sat's will flower under 12/12. Most of the time a pure sat will take much longer to start to show than an indica or even a cross of the 2. Generally I dont try to grow them indoors anymore just because they get way to big but outdoors they are awesome. In the area where i live though it is hard for them to fully mature also because of the early frost and rains etc.

[oddjobs]

OK Guys here,s what I got . I have babilonia and grapetreat x santa maria and some unknown strain I got from Eastern Kentucky. They were all put in 12/12 at the same time , the grapetreat and babilonias started showing at day 2 and all had shown sex by day 7 But the unkown strain has still not shown any sign as of today ,its been 22 days now and ? So anybody got a clue.These plants have main leaves as big as a piece of notebook paper some bigger.and the stems on the leaves are really long. oj

[oddjobs]

I again screwed up on my counting of days so its only been 15 and not 22 since 12/12 began oj

[buddyh]

You might have to turn it back to 11/13 or 10/14 to get that one to flower.

[pflover]

even reducing the light time down to 11.5/12.5 might be enough.

[frankwhite]

Needs good root development to flower. Seedlings can flip at any time but not much time saved aginst yeild. Expect the plant to grow 2 more times in height in Bloom. Main thing is they do most of what you ask them to lol.

[tat2dincali]

here is somethin cool i found hell if they get this figured out and can artificially produce the molecule :) the possibiliteis are endless :

Researchers at the Umeе Plant Science Centre at the Swedish University of Agricultural Sciences (SLU), Sweden, report about a breakthrough in our understanding of how plants control their flowering. In an article published in the international journal Science, Thursday 11th, they show how a small molecule that is formed in the plant leaves is transported to the shoot tips where it induces the formation of flowers.
This knowledge can lead to the development of new tools that can be used to control the timing of plant flowering, something that is of central importance in both agriculture and forestry.

We are all familiar with the fact that different plants flower at different times of the year. Daffodils in spring, roses in summer and other plants in fall. It is absolutely vital for the plant survival to flower at exactly the right time to secure that it can pollinate, or be pollinated, by other plants of the same species. How then does the plant know when to flower?

Intense Florigen hunt
In the 30s scientists found out that plants can tell whether they are growing in spring, summer or fall by measuring the length of the day. One could also show that plants use their leaves to sense the length of the day. By grafting leaves from plants that had been induced to flower on non-induced plants one could show that the induced leaves produce a substance that is transported to the shoot tips where it induces the formation of flowers. In the 30s a Russian scientist called this mysterious substance 'Florigen'. During the following 70 years scientists have been involved in an intense hunt trying to find out the true nature of Florigen which has been described as something of a Holy Grail for plant physiology.

The reason is that the nature of Florigen is central for our understanding of how plant flowering is controlled. All attempts to identify a single substance carrying the properties of Florigen have failed, until now.

Messenger molecule
A research group led by Professor Ove Nilsson at the Umeе Plant Science Centre at the Swedish University of Agricultural Sciences has now identified a messenger molecule that fulfills all the classical properties of Florigen. A gene called FT produces the messenger molecule. This gene is active in leaves and its activity is controlled by the length of the day. When the gene is activated, a messenger molecule is produced that is transported to the shoot tips where it very efficiently induces the gene programs that control the formation of flowers. These groundbreaking results are published online on Aug 12 in the international journal Science. Together with other data published at the same time, it shows convincingly that the messenger molecule produced by FT either is florigen, or an important component of florigen.

The researchers have used the small plant model species Arabidopsis in their research. But the group of Ove Nilsson has also other data showing that these results can be directly applied to other species, such as poplar trees. Ove Nilsson says: "With the help of this knowledge plant breeders will get a new tool to control and adopt the flowering of plants, something that has been of great importance for agriculture but that can also lead to the development of efficient tree breeding for forestry."

The persons that have been active in this study are: Tao Huang, Henrik Bцhlenius, Sven Eriksson and Franзois Parcy. The Swedish Foundation has funded the research for Strategic Research.

[frankwhite]

A small light leak will delay flowering.

[KottonmouthKid]

You can put your baby into flowering after at least 4-5 weeks of vegetation or how ever long you want. It depends on the size of your grow room and how much you want to wait.



Good answer Grant . . .

You can flower anytime if you can "cover" your grow for 12 hours of darkness but make sure you're leak proof or you'll have hermie issues !

Im not fully covered on the hermie thing.. Please fill me in:)

[Real420]

The hermie thing... A plant may show both sexes if you are growing indoors and during the "night" period a plant receives light. Sometimes this will cause a plant to "mutate" and show both sexes. Thus rendering the plant useless for breeding purposes as this trait will pass to the offspring. Although if you have alot of time on your hands you can basically keep cutting the male parts of the plant off and keep the flowering parts. It isn't really worth the trouble though. It ends up being kinda like a dog chasing their tail. Hope this helps

[Cakes]

Thus rendering the plant useless for breeding purposes as this trait will pass to the offspring.
that sounds very important. DNA being changed so spontaneously...

you can also affect amino acid production (which are used to make DNA) with the use of sound. A single tone an hour is all it takes.



ohmmmm....

[Bodah]

Cannabis, like many other flowering plants will, with the shortening of the days in the fall, reach what is called a critical dark period. That is when the daylight hours are reduced to a point that stimulates a hormonal release withing the plant that signifies to the plant that winter is coming and it is time to get crackin', aka, flower and start producing seed for the next year... The critical dark period is different for every variety. Outdoor bred cannabis plants therefore are much more sensitive to photoperiod reduction as opposed to indor bred varities that are accustomed to going from a continuous light period straight to the final flowering cycle photoperiod, which is typically 12/12...

This is all basic plant biology stuff. Anyone with any skill using google or any other search engine should be able to elaborate on the basics that I have touched upon, or delve deep into the mechanics of exactly how all of these processes occur:)...

Cheers,
Bod

[Cakes]

But even still, I hardly ever find what i was looking for. Do you have any links on the reds causing flowering?