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Fan leaves during main-lining

PotusArg
PotusArgstarted grow question 2mo ago
Do you recommend leaving the fan leaves when doing main-lining, or should I remove them? My thought is that through those leaves, the plant will continue photosynthesizing more efficiently and won't experience as much stress. What do you recommend—should I remove them or not?
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Week 3
Techniques. Main-lining
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Ultraviolet
Ultravioletanswered grow question 2mo ago
How far you should mainline up to depends on your light penetration, and if you side supplement, without getting into too many details, you have at most 2-3 layers of leaf before the red and blue parts of the spectral composition are completely absorbed, after which buds will become larf from too much green and not enough R&B. Even a leaf with low photosynthetic efficiency can still perform efficient gas exchange. Gas exchange, primarily the intake of carbon dioxide and release of oxygen, is a separate process from photosynthesis, though they are closely linked. Leaves have specialized structures, like stomata, that allow for efficient gas movement regardless of the leaf's photosynthetic capacity. In plants, fan leaves are crucial for both photosynthesis and cellular respiration, the processes that provide the ATP (adenosine triphosphate) needed for growth and other cellular functions. Photosynthesis in chloroplasts produces ATP and NADPH, which are used in the Calvin cycle to produce sugars. These sugars are then broken down through cellular respiration in mitochondria, generating more ATP, along with carbon dioxide and water. This ATP fuels various cellular activities, including protein synthesis, transport, and other metabolic processes. You can live weeks without food. Days without water. Minutes without oxygen. 16 seconds without ATP. I always enjoy stating that because prior to me reading it I had no idea what it even was, yeeet it is top of the food chain for everything. In its purest form, it is the currency of life. Energy. ATP comes before nutrients, before oxygen, and carbon. While all are essential, ATP is arguably the most fundamental for plant growth as it acts as the primary energy currency for cellular processes. Nutrients, oxygen, and carbon are all necessary for photosynthesis and other metabolic processes, but they require ATP for the energy to be converted into usable forms, like sugars for growth. In essence, ATP is the energy that drives the entire process. Nutrients, oxygen, and carbon are the raw materials and components that are utilized by the plant with the help of ATP. Fan leaves are far more efficient for gas exchange than sugar leaves in cannabis plants. Plants also need to respire, consuming oxygen and releasing carbon dioxide.
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m0use
m0useanswered grow question 2mo ago
Leave Em
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Organoman
Organomananswered grow question 2mo ago
Just remember............more leaves = more energy being made = more and faster growth.
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TruTraTri
TruTraTrianswered grow question 2mo ago
f it does not harm, it does not harm😜 Besides photosynthesizing. If you air flow is okay and the leaf looks helthy - no reason to cut it off. 😎
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00110001001001111O
00110001001001111Oanswered grow question 2mo ago
There is rarely a good reason to remove leaves. If training of any type causes a leaf to rest directly on the medium, that'd be a good reason to remove that particular leaf. Shileded leaves are value-added. Don't remove those either. Leaves do much more than just absorb light. There are feedback loops in the plant that will shed such leaves. It may not have a CNS, but the related biological processes 'know' better than the grower more times than not. Also, be wary of over-sophisticated training. Does it add vege time with similar outcomes? Then, there is no benefit to do it. I really don't care about the pop-culture terms - mainlining or manifolding, but one is more extreme than the other and almost always results in several extra weeks of vege with no benefit to outcome. 'They' generally say to strip all the foliage and such, which is just going to slow down the plant, no ifs, ands or buts. If you want to waste an extra 2-3 weeks for a certain 'look' that's fine too.. that can be value-added on a personal level and nobody can argue with that. Keep as much foliage as you can. IF the plant can't maintain it, it will shed leaves on its own. I use a scrog to creat a base before allowing colas to grow vertically. Whether it is technically mainlining or manifolding i don't give a fuck, lol.. Just do what works. Be systematic. Have a plan with a specific goal for you canopy, and if you do that, it all will work out well and you can continue to streamline your methods to reduce time, effort and resources to get to your end goal. just a tidbit -- co2 intake is just as important as anything else. STripping leaves reduces potential intake of co2. co2 provides carbon, which is the backbone of nearly every single molecules the plant has to create for cellular reproduction and any other biological process that maintains the plant. Atmospheric CO2 is your limiting factor for DLI unless you supplement it. Leaves also store things. They are 'room for error' when you provide unbalanced nutrition or mitigates overfeeding (short-term) etc.. leaves are incredibly important anatomy. Don't fall for any broscience that says things like .. 'remove leaves so the plant can focus on ...' - that's nonsense. removing leaves just makes the plant want to grow more leaves, lol. this sort of thing can delay flower not be a benefit to it.
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RasendeRollo92
RasendeRollo92answered grow question 2mo ago
Hey 👋 No matter which training method you use, I would always remove only leaves who stay completely in shade (lowest ones) or which cover your buds. Remember: a plant needs to do her photosynthesis to grow… which it does with her leaves. Concluding each removed leave means lower rate of photosynthesis, which leads to plentifully lower yield in the end. Anyways, everyone has a different opinion about this topic. The best is if you just do it how you feel it and make your own experiences. Hope that helped 👊👋🖖 Enjoy your journey - with or without leaves !
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kingcrab
kingcrabanswered grow question 2mo ago
Ps leave them for now, can always remove later.
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kingcrab
kingcrabanswered grow question 2mo ago
Hey growmie 👋, I usually leave the fan leaves on until the roots are well-established—that way the plant can photosynthesize properly and recover faster from the main-lining stress. The bigger leaves help fuel new growth. Once you see healthy new shoots and solid structure, you can start gradual defoliation if needed to improve airflow and light penetration. But early on, the fan leaves are more help than harm. Hope that helps—good luck with the main-lining ✌️🍀
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