smokinskins
New Member
its aroura indica. it has only a few single hairs after 3 1/2 weeks. other strains have whole nugs in here. why ??
ever had a plant that wont flower?
- Thread starter smokinskins
- Start date
K1Ng5p4d3
Junior Creatologist
If you have a plant that you have in 12/12 but it is not flowering, then there is a problem with your grow environment. If your room is not light tight when its dark, then the plant might have problems getting started with the flower process. Other than that, All i can tell you is that if it has hairs than its acknowledging that your trying to flower it. It shouldnt have taken 3 wks to show sex n start producing pistils, but at least its started, lol. Try sealing your grow room so there are no light leaks, and then give it another wk or two . If your having the same problem, then i dont have a clue what the hell to do, lmao.
--K1.
--K1.
smokinskins
New Member
still nothing on that friggin thing
LUDACRIS
New Member
more info reqd.
you have given us nothing to go on.
https://www.rollitup.org/newbie-central/1079-before-you-post.html
LUDA.
LUDACRIS
New Member
at what ????????????
LUDACRIS
New Member
K1Ng5p4d3
Junior Creatologist
B.S?? A plant that wont flower, and thats B.S?? There would have to be some EXTREME stress going on in his growroom in order to prolong the flowering process THAT far along. The only thing that I can think of is there being a light leak in his grow room. Pretty sure i even stated in my post that I couldnt think of anything else. Which means that there could be another answer, but i cant think of one. Giving a viable cause for whats happening in his growroom is a hell of alot better than " i need more information from you".absolote B.S.
I was laughing at something completely different than anything that you had to say dude. If it were you, i would have aknowledged you when you asked me a question.
Your knowledgeable, answer his question. If you can do better, and my post is such complete B.S, then please, teach me something.
-K1.
LUDACRIS
New Member
so its back to school then.............O.K.
CANNABIS LIFE CYCLE
Marijuana plants may belong to any one of a number of varieties which follow somewhat different growth patterns. The following outline describes the more common form of growth. Differences between varieties can be thought of as variations on this standard theme.
Cannabis is an annual plant. A single season completes a generation, leaving all hope for the future to the seeds. The normal life cycle follows the general pattern described below.
Germination
With winter past, the moisture and warmth of spring stir activity in the embryo. Water is absorbed and the embryo's tissues swell and grow, splitting the seed along its suture. The radical or embryonic root appears first. Once clear of the seed, the root directs growth downward in response to gravity. Meanwhile, the seed is being lifted upward by growing cells which form the seedling's stem. Now anchored by the roots, and receiving water and nutrients, the embryonic leaves (cotyledons) unfold. They are a pair of small, somewhat oval, simple leaves, now green with chlorophyll to absorb the life-giving light. Germination is complete. The embryo has been reborn and is now a seedling living on the food it produces through photosynthesis. The process of germination is usually completed in three to 10 days.
Seedling
The second pair of leaves begins the seedling stage. They are set opposite each other and usually have a single blade. They differ from the embryonic leaves by their larger size, spearhead shape, and serrated margins. With the next pair of leaves that appears, usually each leaf has three blades and is larger still. A basic pattern has been set. Each new set of leaves will be larger, with a higher number of blades per leaf until, depending on variety, they reach their maximum number, often nine or 11. The seedling stage is completed within four to six weeks.
Vegetative Growth
This is the period of maximum growth. The plant can grow no faster than the rate that its leaves can produce energy for new growth. Each day more leaf tissue is created, increasing the overall capacity for growth. With excellent growing conditions, Cannabis has been known to grow six inches a day, although the rate is more commonly one to two inches. The number of blades on each leaf begins to decline during the middle of the vegetative stage. Then the arrangement of the leaves on the stem (phyllotaxy) changes from the usual opposite to alternate. The internodes (stem space from one pair of leaves to the next, which had been increasing in length) begin to decrease, and the growth appears to be thicker. Branches which appeared in the axils of each set of leaves grow and shape the plant to its characteristic form. The vegetative stage is usually completed in the third to fifth months of growth. Preflowering
This is a quiescent period of one to two weeks during which growth slows considerably. The plant is beginning a new program of growth as encoded in its genes. The old system is turned off and the new program beings with the appearance of the first flowers. Flowering
Cannabis is dioecious: each plant produces either male or female flowers, and is considered either a male or female plant. Male plants usually start to flowers about one month before the female; however, there is sufficient overlap to ensure pollination. First the upper internodes elongate; in a few days the male flowers appear. The male flowers are quite small, about 1/4 inch, and are pale green, yellow, or red/purple. They develop in dense, drooping clusters (cymes) capable of releasing clouds of pollen dust. Once pollen falls, males lose vigour and soon die.
The female flowers consists of two small (1/4 to 1/2 inch long), fuzzy white stigmas raised in a V sign and attached at the base to an ovule which is contained in a tiny green pod. The pod is formed from modified leaves (bracts and bracteoles) which envelop the developing seed. The female flowers develop tightly together to form dense clusters (racemes) or buds, cones, or colas (in this book, buds). The bloom continues until pollen reaches the flowers, fertilising them and beginning the formation of seeds. Flowering usually lasts about one or two months, but may continue longer when the plants are not pollinated and there is no killing frost.
Seed Set
A fertilised female flower develops a single seed wrapped in the bracts. In thick clusters, they form the seed-filled buds that make up most fine imported marijuana. After pollination, mature, viable seeds take from 10 days to five weeks to develop. When seeds are desired, the plant is harvested when enough seeds have reached full colour. For a fully-seeded plant this often takes place when the plant has stopped growth and is, in fact, dying. During flowering and seed set, various colours may appear. All the plant's energy goes to reproduction and the continuance of its kind. Minerals and nutrients flow from the leaves to the seeds, and the chlorophylls that give the plant its green colour disintegrate. The golds, browns, and reds which appear are from accessory pigments that formerly had been masked by chlorophyll.
About Plants Generally
Plants use a fundamentally different "life strategy" from animals. Animals are more or less self-contained units that grow and develop to predetermined forms. They use movement and choice of behaviour to deal with the changing environments. Plants are organised more as open systems - the simple physical characteristics of the environment, such as sunlight, water, and temperature, directly control their growth, form, and life cycles. Once the seed sprouts, the plant is rooted in place and time. Since growth is regulated by the environment, development is on accordance with the plant's immediate surroundings. When a balance is struck, the strategy is a success and life flourishes.
Behaviour of a plant is not a matter of choice; it is a fixed response. On a visible level the response more often than not is growth, either a new form of growth, or specialised growth. By directly responding, plant in effect "know," for example, when to sprout, flower, or drop leaves to prepare for winter.
Everyone has seen how a plant turns toward light or can bend upward if it its stem is bent down. The plant turns by growing cells of different length on opposite sides of the stem. This effect turns or right the plant. The stimulus in the first case is light, in the second gravity, but essentially the plant responds by specialised growth. It is the same with almost all facets of a plant's live - growth is modified and controlled by the immediate environment. The influence of light, wind, rainfall, etc., interacts with the plant (its genetic make-up or genotype) to produce the individual plant (phenotype).
The life cycle of Cannabis is usually complete in four to nine months. The actual time depends on variety, but it is regulated by local growing conditions, specifically the photoperiod (length of day vs night). Cannabis is a long-night (or short-day) plant. When exposed to a period of two weeks of long nights - that is, 13 or more hours of continuous darkness each night - the plants respond by flowering. This has important implications, for it allows the grower to control the life cycle of the plant and adapt it to local growing conditions or unique situations. Since you can control flowering, you control maturation and, hence, the age of the plants at harvest.
PHOTOPERIOD AND FLOWERING
For the marijuana grower the most important plant/environment interaction to understand is the influence of the photoperiod. The photoperiod is the daily number of hours of day (light) vs. night (dark). In nature, long nights signal the plant that winter is coming and that it is time to flowers and produce seeds. As long as the day-length is long, the plants continue vegetative growth. If female flowers do appear, there will only be a few. These flowers will not form the characteristic large clusters or buds. If the days are too short, the plants flowers too soon, and remain small and underdeveloped.
The plant "senses" the longer nights by a direct interaction with light. A flowering hormone is present during all stages of growth. This hormone is sensitive to light and is rendered inactive by even low levels of light. When the dark periods are long enough, the hormones increase to a critical level that triggers the reproductive cycle. Vegetative growth ends and flowering begins.
The natural photoperiod changes with the passing of seasons. In the Northern Hemisphere, the length of daylight is longest on June 21. Day-length gradually decreases until it reaches its shortest duration on December 22. The duration of daylight then begins to increase until the cycle is completed the following June 21. Because the Earth is tilted on its axis to the sun, day-length also depends on position (or latitude) on Earth. As one moves closer to the equator, changes in the photoperiod are less drastic over the course of a year. At the equator (0 degrees altitude) day length lasts about 12.5 hours on June 21 and 11.5 hours on December 22. In Maine (about 45 degrees north), day-length varies between about 16 and nine hours. Near the Arctic Circe on June 21 there is no night. On December 22 the whole day is dark. The longer day-length toward the north prevents marijuana from flowering until later in the season. Over most of the northern half of the country, flowering is often so late that development cannot be completed before the onset of cold weather and heavy frosts.
The actual length of day largely depends on local conditions, such as cloud cover, altitude, and terrain. On a flat Midwest plain, the effective length of day is about 30 minutes longer than sunrise to sunset. In practical terms, it is little help to calculate the photoperiod, but it is important to realise how it affects the plants and how you can use it to you advantage.
Cannabis generally needs about two weeks of successive long nights before the first flowers appear. The photoperiod necessary for flowering will vary slight with (1) the variety, (2) the age of the plant, (3) its sex, and (4) growing conditions.
1. Cannabis varieties originating from more northerly climes (short growing seasons) react to as little as nine hours of night. Most of these are hemp and seed varieties that are acclimated to short growing seasons, such as the weedy hemps of Minnesota or southern Canada. Varieties from more southerly latitudes need longer nights with 11 to 13 hours of darkness. Since most marijuana plants are acclimated to southerly latitudes, they need the longer nights to flower. To be on the safe side, if you give Cannabis plant dark periods of 13 or more hours, each night for two weeks, this should be enough to trigger flowering. 2. The older a plant (the more physiologically developed), the quicker it responds to long nights. Plants five or six months old sometimes form visible flowers after only four long nights. Young marijuana plants (a month or so of age) can take up to four weeks to respond to long nights of 16 hours. 3. Both male and female Cannabis are long-night plants. Both will flower when given about two weeks of long nights. The male plant, however, will often flower fully under very long days (18 hours) and short nights (six hours). Males often flowers at about the same time they would if they were growing in their original environment. For most marijuana plants this occurs during the third to fifth month. 4. Growing conditions affect flowering in many ways . Cool temperatures (about 50F) slow down the flowering response. Cool temperatures or generally poor growing conditions affect flowering indirectly. Flower development is slower, and more time is needed to reach full bloom. Under adverse conditions, female buds will not develop to full size.
Applications of PhotoperiodThe photoperiod is used to manipulate the plants in two basic ways:1. By giving long dark periods, you can force plants to flower. 2. By preventing long nights, using artificial light to interrupt the dark period, you can force the plants to continue vegetative growth.
smokinskins
New Member
luda the cause of a fight?! anyway lights and temp are fine others are doing great. this ai just sits there looking all green with its 4 pistils on the whole thing after 3 1/2 weeks. all fox farm. the others are loving it this one is my slowest plant EVER
anyway lights and temp are fine others are doing great. this ai just sits there looking all green with its 4 pistils on the whole thing after 3 1/2 weeks. all fox farm. the others are loving it this one is my slowest plant EVER
agesbuds
Member
My 11 leafers are 3 weeks into flower and they have yet to show male or female sex! Im worried also as the others in the tent, even a 8 inch clone, have all grown pistols and starting buds on another. I dont understand. I will post pics soon. My light is about 18'' above the cannopy and its a 1000 watt hps thats being ran at 50% power. As the weeks go i tend to boost power untill im at week 8 or 9 then I give 'em the whole 1000 watts. 4 by 4 tent, well ventilated.