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Plants with more direct UV showed much more purple across all 3 plants. The data shows that the number of terpenes in dried Cannabis flowers increases with a “No Red” light treatment for the final three days of production. Based upon these findings, we feel confident in recommending a spectrum control program that eliminates red light output from fixtures for the final 72 hours of the Cannabis flowering cycle. Terpenes are aromatic compounds that give cannabis some of its most distinct aromas from citrus and berry, to more earthy tones. Many species of plants produce and emit terpenes in a diurnal, or daily cycle that is regulated by a complex web of signaling. There are also many plants that emit terpenes at night to attract nocturnal pollinators (Marinho et al., 2014346). Regardless of when the terpenes are produced or emitted, these processes are often dependent upon cues derived from natural light/dark cycles via a native circadian clock (Dudareva et al., 2004). Several light-sensitive pigments are involved in these processes of production and emission, and the different photoreceptors are dependent upon different wavelengths of light to be activated or deactivated. Emission of terpenes is a process that is entirely dependent upon phytochromes and red/far-red light cues in most plant species (Flores and Doskey, 2015). For example, repeated light/dark phytochrome signaling is necessary for the emission of terpenes in tobacco plants (Roeder et al., 2007). Based on previous findings, we hypothesized that a lack of red light and phytochrome-mediated light/dark signaling on the part of the plant is responsible for an increase in terpene content in cannabis. The plant continues to synthesize terpenes, but a lack of red light to trigger the Pr-Pfr shift results in a lack of terpene emission by the plant, thus causing the terpenes to accumulate in the maturing flowers. REFERENCES Dudareva N, Pichersky E, Gershenzon J. Biochemistry of Plant Volatiles. Plant Physiology. 2004;135(4):1893- 1902. Flores, R.M., Doskey, P.V., Estimating Terpene and Terpenoid Emissions from Conifer Oleoresin Composition. Atmospheric Environment. 2015. 113, 32-40. Marinho, C.R.; Souza, C.D.; Barros, T.C.; Teixeira, S.P.; Dafni, A. Scent glands in legume flowers. Plant Biology , Volume 16 (1) – Jan 1, 2014 Roeder S, Hartmann AM, Effmert U, Piechulla B (2007) Regulation of simultaneous synthesis of floral scent terpenoids by the 1,8-cineole synthase of Nicotiana suaveolens. Plant Mol Biol 65: 107-12 Abstract Sound waves technology has been applied to different plants. It has been found that sound waves were at different frequencies, sound pressure levels (SPLs), exposure periods, and distances from the source of sound influence plant growth. Experiments have been conducted in the open field and under greenhouse growing conditions with different levels of audible sound frequencies and sound pressure levels. Sound waves at 1 kHz and 100 dB for 1 h within a distance of 0.20 m could significantly promote the division and cell wall fluidity of callus cells and also significantly enhance the activity of protective enzymes and endogenous hormones. Sound waves stimulation could increase the plant plasma-membrane H+-ATPase activity, the contents of soluble sugar, soluble protein, and amylase activity of callus. Moreover, sound waves could increase the content of RNA and the level of transcription. Stress-induced genes could switch on under sound stimulation. Sound waves at 0.1–1 kHz and SPL of (70±5) dB for 3 h from plant acoustic frequency technology (PAFT) generator within a distance ranged from 30 to 60 m every other day significantly increased the yield of sweet pepper, cucumber and tomato by 30.05, 37.1 and 13.2%, respectively. Furthermore, the yield of lettuce, spinach, cotton, rice, and wheat were increased by 19.6, 22.7, 11.4, 5.7, and 17.0%, respectively. Sound waves may also strengthen plant immune systems. It has been proved that spider mite, aphids, gray mold, late blight and virus disease of tomatoes in the greenhouses decreased by 6.0, 8.0, 9.0, 11.0, and 8.0%, respectively, and the sheath blight of rice was reduced by 50%. This paper provides an overview of literature for the effects of sound waves on various growth parameters of plant at different growth stages. https://doi.org/10.1016/S2095-3119(13)60492-X
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Day 16 Notes Took a few fan leaves off from the top they was blocking precious light... I watered with about 1.5lt I used. 1.3ml of bio grow to 2lt of tap water. Have been removing leaves here and there Day 21 Notes I watered with 1.5 liters of tap water along with 1.3ml of bio grow and 3 drops of monkey Nutrients Root Shoot this root shoot stuff is actually really good they gave me a full free run and it's a UK brand
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It is growing sideways :) more leaves are appearing 18 hours - Daytime from 19:00 to 13:00 6 hours - Evening Time 13:00 to 19:00 It was necessary to buy another heating blanket the temperatures dropped a lot around here I already had a blanket keeping the girl company Warming Blanket 35x20cm 15W I put another blanket under the vase Heating Blanket 55x35cm 30W (A) Suggestions: -You can also buy tent heaters -And if you prefer, there are also electric towel dryers, they say they work! (B) The Analog Timer serves for lighting, ventilation and heating blanket Note: - They say that ventilation must be continuous so as not to harm the plant! 😲10 washed worms dropped in the pot let's see if they work well or destroy the roots of the plant
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@PoshGrow
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Welcome to GhostGrow Chapter One by PoshGrow! 🌳 Week #9 6th week of flowering. Humidifier was raplaced with dehumidifier to maintain 50% rH. Still fighting some high temperature problems, it was very hot last week and this one so far in my city and the temperature in my grow room(not tent) is high 30s 32s... So i keep my tent open and ventilated with additional standing fan. All strains look healthy, happy and stacking up some nice weight, except 2 strains, Alaskan #2 and Alaskan #5. Alaskan #2 Looks good but still falls behind in flowering time, also looks abit streesed out and with smaller budsites, dont know what to expect to be honest. Alaskan #5 As mentioned last week got some serious Nitrogen deficiency to fight with. No results at this moment... Alaskan #4 Seems to be fastest strain so far, stacked good buds, hard as rock top ones. Started watering only with pH'ed water for flush before harvest, because it seems to go down first of all this grow run, also I started to check its trichomes with mini digital microscope. 90% are cloudy, other still clear. Gonna wait till 10% amber & 90% cloudy before chopping this girl down. Lemon and Blueberry doing perfect, stacking up well, all trichomes are crystal clear☺️ Watering when needed(2, sometime 3 times a week), every other watering I used Fox Farm Big Bloom, Grow Big & Tiger Bloom. Except with Alaskan #5 watering, its more in experimenting mode with increased Grow Big dosage so wont be covering it here. UPDATE! JUNE 28TH. Uploaded 2 new videos and Alaskan #4 picture. Enjoy!
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@PapaTerps
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AlienZ Automatic - Greenhouse Seed Co. Day 95 🚿 She was watered with 3L of just plain RO tap water, pH'd to 6.3, twice this week and has been left to dry back for the last five days 👍🏻 ✂️ To prepare her for harvest, she had the majority of her fan leaves and larger sugar leaves removed at the start of the week, this also allowed for more light to reach areas of the bud that had been shaded. For harvest, I performed a wet trim, to ensure she had as little foliage as possible on her, removing as many leaves and stems from her as possible, to prevent any moisture buildup during her dry 🙏🏻 🌸 Her bud is fully mature now, most of her pistils have turned amber with just new growth exhibiting white pistils. All of her trichomes have either turned milky or amber, with about 15% being amber 👌🏻. Her smell has also changed a bit and is now heavy on the citrus/grapefruit with undertones of floral/earthiness - very pleasant 🌸 ♈ She will now be dried in a dark cool room (at ~20 degrees celsius with ~60% humidity) for about 8 days before she is move into glass jar for her cure, which will last for at least a month before she is used 🤞🏻
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@Pauwela
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This is my 9th grow session since August 2017, 5th round of my own clones, kept this run going since April
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10 days of darkness during the flush begins. Had great results with Wanda and her genetics. Blessed for a first grow. Cut Wanda down at the end of the week. She’s now drying. I will be giving a thorough review for my harvest diary. Excited to share what I’ve experienced and learned from this grow.
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Tangie'Matic growing nicely, as expected. Really excited about growing this stain again at the end of my growing cycle. Tangie'Matic was one of the first strains I grew last fall and I really liked the results. But I'm hoping for even better results now with a few grows under my belt. I feel like I've learned a lot over the past few months. Hopefully it pays off here.👍
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@DrShotzUK
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Banana purple punch - 420 fast buds Week 6 had some issues with heat stress but seems to be pulling threw ok Smells banging DRSHOTZUK
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The ladies had some nice stretching the last few days, I wonder how much more stretch we will get. This coming weekend we're going to do some defolating to expose more budsights and to improve aircirculation. It also helps in lowering the humidity.
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@Flavors
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🌱 Week 12 Update (Veg) The girls are still in veg mode 🌿🌳 and looking strong 💪. Lots of new growth popping up every day 🌱🌱. Canopy is filling in nicely 🕸️✨ with healthy green leaves 🍃. Still battling thrips
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@Gonjuk
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Fin'ora tutto bene a un mese di fioritura ho cambiato l'acqua, c'è un problema l'acqua è a 25/26° ogni tanto ci metto delle bottiglie congelate e aumento il perossido d'idrogeno
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COMMENTED BY MadeInGermany MadeInGermany 8 minutes ago Flowering day 68 since clock change to 12/12 Hey guys :-) . It's so far, the lady is ripe and will be cut at the bottom end in the coming days and hung upside down in the drying tent :-) . Next week there will be an extra update on how they are hanging. Watering would be done twice this week with 1 l each (nutrients see table above) Otherwise it was checked and everything was cleaned. Have fun and stay healthy 💚🙏🏻 👇🏼👇🏼👇🏼👇🏼👇🏼👇🏼👇🏼👇🏼👇🏼👇🏼👇🏼👇🏼 You can buy this Nutrients at : https://greenbuzzliquids.com/en/shop/ With the discount code: Made_in_Germany you get a discount of 15% on all products from an order value of 100 euros. 👇🏼👇🏼👇🏼👇🏼👇🏼👇🏼👇🏼👇🏼👇🏼👇🏼👇🏼👇🏼 You can buy this strain at : https://www.exoticseed.eu/ Water 💧 💧💧 Osmosis water mixed with normal water (24 hours stale that the chlorine evaporates) to 0.2 EC. Add Cal / Mag to 0.4 Ec Ph with Organic Ph - to 5.8 - 6.5 MadeInGermany
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Smells getting stronger, flowers getting fatter, pistols starting to turn amber, we are getting closer to harvest, plants all nice and healthy the excitement grows the wait goes on but theyll soon be ready cant wait thery are looking really well, see you next week for the latest update ✌️👊 few of us closing in on harvest now with barneys new mimosa evo and cant wait to see the outcome, goodluck to all others with your harvest as well
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Noticing a little purple tinge to all plants at top , I’m thinking it’s the led , never had it with hps before