If your clones stay upright, transplant them to your next growing medium. If not, put them back under the humidity dome and continue the process. Mostly revolving around red versus blue light and the various successes of either. Generally, a fluorescent lighting system is enough. Too much light will actually hinder clone growth. Generally, you should follow an light schedule, or a light schedule. Sometimes the latter can make maintaining a consistent temperature and humidity much easier.
The first, and most obvious, is to take your clones from healthy plants. Taking your clone from an unhealthy plant is a recipe for disaster. Pick your best mother plant to take clones from. Similarly, you want to choose the best cuttings from that plant. Choose healthy green branches with leaves with translucent veins. Ideally, the branch will have at least six nodes. For strains that are particularly hard to clone, you can make the second angled cut under running water.
This stops the stem from being exposed to the air and aids the capillary action. You should also be using sterile equipment.
Cannabis plants in general are prone to disease and mold, and clones even more so. You can minimize this by using sterile equipment during your cloning process. You can even place clones near a window and use indirect sunlight if you wish, just keep an eye on humidity and temperature. You can also limit transpiration in your plant by cutting off half the leaflet on each cutting. This essentially decreases the amount of surface area that is able to transpire.
Our absolute best tip when it comes to cloning is to use a humidity dome. It makes the entire process much easier. It stops plants from drying out and limits the amount of transpiration the plant needs to do. Grobo is an automated grow box. We use a hydroponic technique called deep water culture to grow plants.
The first step is to prepare the media you are planting the clone into. Some media may require soaking, conditioning, or some other form of preparation. Coco coir blocks, for example, need to be soaked and then broken up. Pre-mixed coco coir substrates are easy to work with and can be forgiving. Popular amendments include organic or synthetic fertilizer, oyster shell meal for pH buffering , and various substances to improve soil structure.
Next, fill your pots with your chosen media. Since it is essential that you have a developed rootball before transplanting into a larger pot, planter box, or direct ground space, it is recommended to first transplant into a 1-gallon pot.
After a couple weeks your rootball should be developed, allowing to transplant her into a large vessel. Fill to 1 inch from the tip of pot and gently tamp soil by pressing it down with your hand. This helps ensure that air pockets do not develop; these can dry out your roots and will negatively affect plant health.
This space is important so that you do not overflow the pot while watering. Super Thrive and similar products contain vitamins and hormones that are reported to minimize stress on growing plants. Soak clones for 15 minutes before transplanting. First, dig a small hole in the media about the size of the 1-gallon pot. When un-rooted clones get light, leaves attempt to photosynthesize, but they cannot uptake nutrients.
This makes leaves cannibalize themselves, and turn yellow. Here is an example of what it looks like. Notice how the right side of the tray is getting too much light, and the clones are suffering. If this happens to you, throw away the clones in poor health. When clones are stalled, it takes weeks before they recover and get into rapid growth. Come back to the dude grows every week. Keeping it short and bushy like you see here, will produce a wide canopy with dozens of large tops.
Yet another easy answer at an opportune time. Chlorotic patches, signs of pests, thin branches… basically the floral equivalent of an opiate addicted pole dancer, not the product of a happy and stable environment.
It also addresses how to determine the proper distance of LED lighting from the plant canopy to nourish plant growth, as well as the importance of PPFD PAR , and other popular grow light terminology.
PPFD represents the light density a plant receives over time and is measured in micromoles [of photons] per square meter per second 1. As the sun pours light onto the plants, their leaves are collecting the energy. PPFD is an important metric because it helps growers accurately measure the light intensity for photosynthesis at the canopy level. It is also important because lights placed too close to the canopy can cause burning, bleaching, stunted growth, or discoloration.
LED source shown here does not use a reflector to direct the light. Table 1 shows how a W LED grow light performs at varying distances from the plant canopy.
As the light source is located closer to the canopy, the light intensity increases. In general, grow lights should be mounted closer to the plant canopy for vegetative stages of growth and higher up further away from the plant canopy during the flowering stages of growth.
For seedlings, LED grow lights should generally be mounted between inches above the plant canopy — however, this depends on the power wattage of the light source. Once roots have been established and sprouting has started, the lights can be moved closer usually within the first weeks. In the vegetative stage, LED grow lights should be between inches away from the top of the canopy.
During this stage, more light is needed for photosynthesis, so the light source should be located closer to the plants. As the plants progress through the flowering stage, their demand for intense light decreases.
The top leaves of the canopy should be between inches from the light source to produce flowers. It is at this stage that the plants increase in height and grow fruit. Depending on lights and how you want your crop to grow, it is not necessary to change the height of the lights during flowering, especially if you do not want taller plants. At the very early stages of growth, seedlings are delicate and require less light intensity. This means you do not want to turn up the intensity too early as the seedlings will thrive with a far gentler approach.
Depending on the size of the light, it is safe to keep grow lights located somewhere between inches from the top of the soil. Cannabis cloning is a process where clippings or cuttings from a mature plant are used to grow another plant of the same kind.
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