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Chemical reactions in which, a single substance splits up into two or more simpler substances are called decomposition reactions. These reactions are carried out by energy, supplied by different sources. The required energy can be supplied by heat (thermolysis), electricity (electrolysis), or light (photolysis). Let’s talk about photolysis reactions (not photosynthesis): Photolysis (also called photodissociation and photodecomposition) is a chemical reaction, in which a chemical (an inorganic or an organic) is broken down by photons and is the interaction of one or more photons with one target molecule. The photolysis reaction is not limited to the effects of visible light, but any photon with sufficient energy (higher than the dissociation energy of the targeted bond) can cause the chemical transformation of the said (inorganic or organic) bond(s) of a chemical. Since the energy of a photon is inversely proportional to the wavelength, electromagnetic waves with the energy of visible light or higher, such as ultraviolet light, X-rays, and γ -rays, can also initiate photolysis reactions. Like all other peroxides, hydrogen peroxide (H2O2) also consists of a relatively weaker O−O bond, which is susceptible to light or heat. The net equation for the reaction is: 2H2O2⟶2H2O+O2 The step-wise reaction mechanism is suggested as follows (Ref.1): H2O2+hν⟶2HO∙ HO∙+H2O2⟶HO−O∙+H2O HO−O∙+H2O2⟶2HO∙+H2O+O2 Using isotope studies it was confirmed that the O2 formed is cleanly derived from H2O2 (Ref.2). Notes: The rate increases rapidly in the presence of catalysts such as MnO2 and KI (Ref.2). The rate of decomposition is slow at room temperature, but it increases with temperature. It is believed to be due to thermal decomposition of H2O2, which seemingly accelerates the photolysis (Ref.3). References: 1.J. P. Hunt, H. Taube, “The Photochemical Decomposition of Hydrogen Peroxide. Quantum Yields, Tracer and Fractionation Effects,” J. Am. Chem. Soc. 1952, 74(23), 5999–6002 (https://doi.org/10.1021/ja01143a052). 2.A. E. Cahill, H. Taube, “The Use of Heavy Oxygen in the Study of Reactions of Hydrogen Peroxide,” J. Am. Chem. Soc. 1952, 74(9), 2312–2318 (https://doi.org/10.1021/ja01129a042). 3.F. O. Rice, M. L. Kilpatrick, “The Photochemical Decomposition of Hydrogen Peroxide Solutions,” J. Phys. Chem. 1927, 31(10), 1507–1510 (https://doi.org/10.1021/j150280a004). Interestingly, as early as 1934 Haber and Weiss (Ref. 1) proposed that HO2∙ is formed in the decomposition of hydrogen peroxide. The subsequent reaction of the transient superoxide radical anion with hydrogen peroxide has been determined to also form the hydroxyl radical (Ref. 2). The higher pH version of the last reaction is, therefore, best represented as: O2∙−+H2O2⟶2HO∙+OH−+O2 And as H++OH−=H2O, the net product formation is not altered. However, alkaline H2O2 is well known to be less stable than acidic hydrogen peroxide (Ref.3) even in absence of light exposure, which accelerates its decomposition (which can involve radical pathways) liberating oxygen! References: 1.Haber Fritz and Weiss Joseph, 1934, The catalytic decomposition of hydrogen peroxide by iron salts. Proc. R. Soc. Lond. A 147: 332–351 http://doi.org/10.1098/rspa.1934.0221 2.TOSHIHIKO OZAWA, AKIRA HANAKI, Reactions of Superoxide with Water and with Hydrogen Peroxide, Chemical and Pharmaceutical Bulletin, 1981, Volume 29, Issue 4, Pages 926-928. https://doi.org/10.1248/cpb.29.926 3.https://www.researchgate.net/figure/Effect-of-pH-on-the-decomposition-of-hydrogen-peroxide-H-2-O-2-0-800-mg-l_fig1_234110563, from Yazıcı, Ersin & Deveci, Haci. (2010). Factors Affecting Decomposition of Hydrogen Peroxide. https://doi.org/10.13140/RG.2.1.1530.0648.

SuperSativaSeedClub PurplePunchOG Auto Week 13 Weekly update on these two amazing ladies. This week I had some temperature swings from cold to hot but all in all they handled it like Champs. I checked the trichs today and only seeing mostly cloudy on the bigger one with still clear and cloudy on the one thats LST. I'll check later this week as I'm shooting for a 90/10 cloudy to amber. All in all Happy Growing.

Hello Growmies, As we conclude week 9 with our Epic Buzz trio, our spirits are high and our grow space is thriving. The introduction of an intake fan has been a remarkable success, significantly enhancing our control over the grow room's climate. Though not manipulated by Tent X's advanced automation, this new system has integrated seamlessly, working wonders for humidity regulation and fresh air circulation. The positive impact on the VPD is clearly reflected in the graph, showcasing a stable environment conducive to plant health and vigor. The plants themselves are a testament to this success; they've stretched up nicely, with the canopy becoming denser by the day, promising an abundant harvest. Each Epic Buzz, from #1 to #3, stands lush and robust, with a vivacity that indicates they're on the right track. It seems they're set to make us proud, not just as individual specimens but as a harmonious collection within our carefully curated tent. The precision in our approach continues to be our guiding principle, as evidenced by the meticulous adjustments to our environmental controls, shown in the steady data from our VPD readings. Our hands-on efforts complement the automated systems, creating an ideal balance that our Epic Buzzes are clearly loving. Looking forward, the prospect of the flowering phase fills us with anticipation. With the canopy now in optimal condition, thanks to our strategic planning and the supportive role of the intake fan, we're poised for the next stage of growth. The thriving Epic Buzz plants, along with our proactive measures like the fly trapping, signify that we're not just growing plants—we're cultivating excellence. Stay lifted, Salokin

Day 57 - Gave 17oz of water, rotated but not liking the leaves. Spritzed leaves with water... Day 58 - Moved light to 22" cause I am not liking the leaves... Day 59 - No amber tricomes yet that i can see, raising light may have helped. She looks better after removing much of the brown leaves as suggested, Thank you!! Going to try the Molasses treatment for 2 days then just let go. 18oz of Molasses solution @ 1 tsp per 36oz... Rotated and Spritzed leaves with water... Day 60 - 17oz of water, Rotated and spritzed leaves with water. Day 61 - Rotated and spritzed leaves with water. (Sorry no pics) Day 62 - 17oz of water @ rotated Day 63 - 34oz of water @ rotated

3.2.2024: Start of week 7 from seed. Fed 1/4 fox farm trio nutes plus calmag. 64oz at 6.5ph. There's some clear nute burn on the leaf tips but she's doing well. Super puffy bud sites with tons of long white pistils. Few random orange hairs here and there. 3.3.2024: Day 44 from seed. Steady as she goes. No change to current state. 3.4.2024: Watered 64oz at 6.5ph. No change...chugging along. 3.5.2024: Day 46. Buds are forming nicely. Some red hairs and trichomes on the sugar leaves. 3.6.2024: Day 47. Fed again at 1/4 strength with 3/4 gal of 6.5ph. Runoff tested at 6.49 just around 1000ppm. Solution going in was 300ppm 3.7.2024: Day 48. Plant doing its thing. One fan leave on the top has a touch of brown/red spotting. Can't tell if its light/nute related. Good bud development all around. 3.8.2024: Day 49, end of week 7 from seed. Watered 96oz at 6.38ph. Runoff ppm at 1050 with ph at 6.7. She appears to being doing great. Super stoked to see the bud development over the past week. I'm thinking the reddish hues the top sugar leaves are showing might be purple which is kinda cool. Doesn't seem like a deficency.

18/10 - comienza su quinta semana en etapa de floracion. Su evolución fue muy rapida, apenas entro en flora cambio totalmente la planta. Los cocos están perfectos, super resinosos con olor muy fuerte. El banco de semillas recomienda que este en flora de 8 a 9 semanas. Seguramente la deje hasta la semana 8. Esta bastante avanzada. No tuve problemas en ninguna etapa. Sin dudas es una genetica que volvera a cultivar. Cabe aclarar que esta planta genera mucha resina por que es ideal para extracciones. Podes seguirme en instagram como @bruweed_arg

Hi everybody, The last plant has recovered quite well, since I have my ph under control again, gotta admit that the Milwaukee ph-pen feels a lot faster and stable in terms of readings and also the calibration. I am growing on Speedgrow rockwhool this time, and not growdan. Speedgrow claims that you don’t need to soak and buffer their cubes. I will test this once the plant moves out of the microgreen section into the tent, where I can monitor the water reservoir.

Day 56: I gave 1.5L of clear water to the royal gorilla auto. Day 59: I gave 1.5L of water to the glue gelato auto. I also checked the trichomes, on both plants they are translucents, I'll wait some of them to turn amber. It was predicted a grow of 65 to 70 days from germination to harvest and it did not lie. I might harvest next sunday (day 65) but I hope it can wait until the next tuesday so both plants would have at least 14 days of clear water. Day 60: I gave 1.5L of water to the royal gorilla auto.

October 24, 2018, watered all plants. October 25, 2018 topped 3 plants for the 2nd time. GDP#2 did not do 2nd topping. October 27, 2018 watered all plants. GDP #2 was root bound, transplanted into one gallon pot. Bagseed #2 roots were peeking out of holes, transplanted in 2 gallon pot. GDP #1 roots are peek at the pot holes, will be transplanting very soon. Today is October 28, 2018, minimal defoliating. Going to allow plants to grow a bit without much defoliating. My goal is to get height of 1 foot to 1.5 foot before I begin flower stage since they double/triple in height then. I removed all items plants were sitting on for height. Lights are 18 inches from top of plants. When watering, ph is 6.2, temp 75F, ppm differs due to which week I am in for nutes. Today is November 2, 2018, I watered all plants with only cal-mag, no other nutes, ph 6.2. No pics yet, waiting a few days.

Things are starting to turn around. The girls are looking much better overall. Starting to see some nice color and growth from the older girls and the new seedling is looking great. I've beed watering mostly with plain ph'ed water. But I've also started adding a little Cal-Mag (from Symbys) and Recharge once per week.

Got a new light this week, it's basically a HLG 260 R-Spec except locally manufactured using the same Samsung LEDs. Big Mumma got her 60x60cm tent today and will go in there under one Viparspectra 300W blurple (130w from the wall). I trimmed her, super cropped her main stem and added a scrog net in preparation of flowering her in the next couple of days. Because my other plants were getting up past 75cm after 7 days of flower (100cm is my absolute max) , I decided to supercrop the canopy back down to about 60-65cm - it was pretty scary and I definitely broke the outer stem on some of them. Also gave them a good trim. Fortunately most bounced back strong the next day which are the most up-to-date photos you see (17/4/20).

Here we are on day 28. On day 23 i spoted Spider Mites. Next day i been spray leavs whit neem oil, for now SM are gone i hope they will not come back. Been spoteted on some leavs some def. I think that is mg, ca. She coming along nicely😁🤩🤘✌️

16 days transplant to 3.5 gal Dutch bucket with perlite. Auto watered every 6 hrs with newts ppm 680 we will get some burn. It will be ok. Should be mild but strain depending. We She all see who gets upset. They are now in the Greenhouse. So it's up to the Sun and 2 - 1000 watt HPS ( for supplemental light ). Grab a chair and hold on. Don't forget the popcorn.

Week 4 of flowering just ended. She has some burned out leafs and requires bit of cleaning. I'll perform some maintenance next week when I'm back.

Flush for 2 days then Harvesting weekend .

Esta semana agregue una pastilla de easy 2 grow x 15l de agua y los siguientes riegos con agua. He ido haciendo cropping y moldeando un poco las plantas. Por fin noto mejoria desde que desequilibre el PH. Arranco el Autopot para las Hulkberry. Las gelato van con riego a mano, no tengo mas autopot. Un vaso de agua de plastico cada 3 dias.