Hah-ha ..yea, i didn’t mean anything by that. I think it’s just important to point out cause the resin swells up way more in hydro/coco than in soil.Why do you like to wake demons up haha
That is one frosty male, i think the trichomes on him are better then some fem led grows ive seen
any exotic monochromatic wavelengths they got?Just stumbled upon some pics of the dobs chips I talked sbout...
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And smaller i use for seedlings sometimes ( 10k kelvin and blue).
Shall improve rooting and avoid stretching.
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I spent extensive time in the 2010’s studying UV; I’ve got detailed old posts in here @ and still have probably a thousand bucks in meters @…..@snakedope
I'm attaching a review about photo-protectants in C. sativa (which seems to include terps as well, but not conventional sunscreen pigments)
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Thank you - NLD / Sativa Synonyms - Yes@led05 my respect!.
No question, you know how it works.
Are you mostly in Sativa ? They look like. I wish I had enough height like you. I have to stuff them into tents. Thanks to led this works.
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UVB is far more photoinhibitive and destructive than UVA. Not saying now one can take over the function of the other, and both of it is bad if you go overboard with it. The sun has way more UVA than UVB so plants have learned ways to deal with it, and studies show, a moderate dose can be beneficial. As it is ok to have UVA alongside of UVB for the photo-repair effect (D1 protein novosynthesis)UVA is horrible for people, plants etc… UVB has all the good stuff…..
That’s just not true; go read up some medical journals in UV for treatment of many skin issues, you’ll learn clearly it’s the UVA causing cancers, aging etc…I realize we’re dealing with plants but often learning about things were limited to studies we can accessUVB is far more photoinhibitive and destructive than UVA. Not saying now one can take over the function of the other, and both of it is bad if you go overboard with it. The sun has way more UVA than UVB so plants have learned ways to deal with it, and studies show, a moderate dose can be beneficial. As it is ok to have UVA alongside of UVB for the photo-repair effect (D1 protein novosynthesis)
Cannabis doesn’t produce resin only to protect itself from intense light, thou i’m sure part of the reason is to preventdehydration(edit: should have wrote effects. but it also includes dehydration) caused by sunlight, heat but also wind.
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Many compounds in cannabis actually have antibacterial,antiviral and antifungal properties = to protect the plant from these kinds of environmental factors. These types of compounds wouldn’t exist if resin would only be produced against light stress.
When insects bite holes into the plant’s tissue these “scars” will open a paths to pathogens and so the plant needs to protect itself against these by producing the various compounds that are in cannabis resin.
Part of the defense mechanism of sticky resin, i would think, is so that insects wouldn’t want land on the buds. ..but that’s just me speculating.
Some plants give me skin irritation when my arm brushes a blooming plant, some more than others, and insects/animals could also feel it when they brush against a cannabis plant.
From the paper @Cerathule just posted.
Cheers for that one, mate. Seems to have alot of interesting info, haven’t read all of it yet. I’m too tired atm. Cool stuff!
https://www.icmag.com/threads/led-and-bud-quality.18123147/post-18176653
Trichomes
Trichomes form a large group of plant structures that are uni[1]or multicellular epidermal appendages, classified by their origin, form, function, and secretion (Werker, 2000). These structures are responsible for synthesis and storage of cannabinoids and terpenes in C. sativa L., accumulating in resin heads (Hudson, 1963). They protect plants from light stress (Lydon et al., 1987), high heat (Levin, 1973; Lapinjoki et al., 1991), and herbivore pressure (Pillemer and Tingey, 1976; Alahakoon et al., 2016). Other mechanisms, including water absorption through dew collection, salt secretion, and alluring function, are reported (Werker, 2000).
All aerial parts of the cannabis plant are covered with trichomes, and can be classified as either “glandular” or “non-glandular” (Dayanandan and Kaufman, 1976). Glandular trichomes contain more bioactive/psychoactive compounds than non-glandular trichomes (Raman et al., 2017; Livingston et al., 2020). Glandular trichomes are found on all anatomical plant parts except the hypocotyl and cotyledon, and non-glandular trichomes are found on stems, leaves, petioles, stipules, bract, and tepals (Raman et al., 2017).