Green light is radiation with wavelengths between 520 and 560 nm and it affects photosynthesis, plant height, and flowering. Plants reflect green light and this is why they appear green to our eyes. As a result, some growers think that plants don’t use green wavelengths, but they actually do! In fact, only around 5 – 10% of green light is reflected from leaves and the rest (90 – 95 %) is absorbed or transmitted to lower leaves [1]. Green wavelengths get used in photosynthesis. Chlorophyll pigments absorb small amounts of green wavelengths. Light that doesn’t get absorbed is transmitted to leaves that are shaded out from direct light. This means that leaves at the bottom of the canopy get more green light than leaves at the top. A high proportion of green wavelengths compared to other colors tells lower leaves that they are being shaded out, so they are able to react accordingly. Lower leaves may react by opening or closing their stomata or growing longer stems that help the leaves reach brighter light [1, 2, 3]. When it comes to growing cannabis, many cultivators are interested in the quality of light used for the flowering stage. In many plants, flowering is regulated by two main photoreceptors: cryptochrome and phytochrome. Both photoreceptors primarily respond to blue light but can also respond to green, although to a lesser extent. Green can accelerate the start of flowering in several species (although cannabis has yet to be tested) [1, 4, 5]. However, once flowering has begun, it’s important to provide plants with a “full spectrum” light that has high amounts of blue and red light, and moderate amounts of green, in order for photosynthesis to be optimized. Green light mediates seed germination in some species. Seeds use green wavelengths to decide whether the environment is good for germination. Shade environments are enriched in green relative to red and blue light, so a plant can tell if it is shady or sunny. A seed that senses a shaded environment may stay dormant to avoid poor growing conditions [1]. Some examples of plant species where researchers have documented this response are: ryegrass (a grass that grows in tufts) and Chondrilla (a plant related to dandelion) [1, 6]. Although green wavelengths generally tell plants NOT to germinate, there are some exceptions! Surprisingly, green wavelengths can stimulate seed germination in some species like Aeschynomene, Tephrosia, Solidago, Cyrtopodium, and Atriplex [1, 6, 7]. Of course, light is not the only factor affecting seed germination – it’s a combination of many factors, such as soil moisture, soil type, temperature, photoperiod, and light quality. When combined with red and blue light, green can really enhance plant growth [1, 8]. However, too much green light (more than 50% of the total light) can actually reduce plant growth [8]. Based on the most current research, the ideal ratio of green, red, and blue light is thought to be around 1:2:1 for green:blue:red [9]. When choosing a horticultural light, choose one that has high amounts of blue and red light and moderate amounts of green and other colors of light. Not many studies can be found about the effect of green light on cannabis growth or metabolism. However, if one reads carefully, there are clues and data available even from the very early papers. Mahlberg and Hemphill (1983) used colored filters in their study to alter the sunlight spectrum and study green light among others. They concluded that the green filter, which makes the environment green by cutting other wavelengths out, reduced the THC concentration significantly compared to the daylight control treatment. It has been demonstrated that green color can reduce secondary metabolite activity with other species as well. For example, the addition of green to a light spectrum decreases anthocyanin concentration in lettuce (Zhang and Folta 2012). If green light only reverses the biosynthesis of some secondary metabolites, then why put green light into a growth spectrum at all? Well, there are a couple of good reasons. One is that green penetrates leaf layers effectively. Conversely red and blue light is almost completely absorbed by the first leaf layer. Green travels through the first, second, and even third layers effectively (Figure 2). Lower leaf layers can utilize green light in photosynthesis and therefore produce yields as well. Even though a green light-specific photoreceptor has not yet been found, it is known that green light has effects independent from the cryptochrome but then again, also cryptochrome-dependent ones, just like blue light. It is known that green light in low light intensity conditions can enhance far red stimulating secondary metabolite production in microgreens and then again, counteracts the production of these compounds in high-intensity light conditions (Kim et al. 2004). In many cases, green light promoted physiological changes in plants that are opposite to the actions of blue light. In the study by Kim et al. blue light-induced anthocyanin accumulation was inhibited by green light. In another study it has been found that blue light promotes stomatal opening whereas green light promotes stomatal closure (Frechilla et al. 2000). Blue light inhibits the early stem elongation in the seedling stage whereas green light promotes it (Folta 2004). Also, blue light results in flowering induction, and green light inhibits it (Banerjee et al., 2007). As you can see, green light works very closely with blue light, and therefore not only the amount of these two wavelengths separately is important but also the ratio (Blue: Green) between these two in the designed spectrum. Furthermore, green light has been found to affect the elongation of petioles and upward leaf reorientation with the model plant Arabidopsis thaliana both of which are a sign of shade avoidance symptoms (Zhang et al. 2011) and also gene expression in the same plant (Dhingra et al. 2006). As mentioned before, green light produces shade avoidance symptoms which are quite intuitive if you consider the natural conditions where the plants grow. Not all the green light is reflected from the highest canopy leaves in nature but a lot of it (50-90%) has been estimated to penetrate the upper leaves at the plant level ((Terashima et al., 2009; Nishio, 2000). For the plant growing in the understory of the forest green light is a signal for the plant of being in the shade of a bigger plant. Then again, the plants growing under unobstructed sunlight can take advantage of the green photons that can more easily penetrate the upper leaves than the red and blue photons. From the photosynthetic pigments in higher plants, chlorophyll is crucial for plant growth. Dissolved chlorophyll and absorb maximally in the red (λ600–700 nm) and blue (λ400–500 nm) regions of the spectrum and not as easily in the green (λ500–600 nm) regions. Up to 80% of all green light is thought to be transmitted through the chloroplast (Terashima et al., 2009) and this allows more green photons to pass deeper into the leaf mesophyll layer than red and blue photons. When the green light is scattered in the vertical leaf profile its journey is lengthened and therefore photons have a higher chance of hitting and being absorbed by chloroplasts on their passage through the leaf to the lower leaves of the plant. Photons of PPFD (photosynthetic photon flux density) are captured by chlorophyll causing an excitation of an electron to enter a higher energy state in which the energy is immediately passed on to the neighboring chlorophyll molecule by resonance transfer or released to the electron transport chain (PSII and PSI). Despite the low extinction coefficient of chlorophyll in the green 500–600 nm region it needs to be noted that the absorbance can be significant if the pigment (chlorophyll) concentration in the leaf is high enough. The research available clearly shows that plants use green wavelengths to promote higher biomass and yield (photosynthetic activity), and that it is a crucial signal for long-term developmental and short-term dynamic acclimation (Blue:Green ratio) to the environment. It should not be dismissed but studied more because it brings more opportunities to control plant gene expression and physiology in plant production. REFERENCES Banerjee R., Schleicher E., Meier S. Viana R. M., Pokorny R., Ahmad M., Bittl R., Batschauer. 2007. The signaling state of Arabidopsis cryptochrome 2 contains flavin semiquinone. The Journal of Biological Chemistry 282, 14916–14922. Dhingra, A., Bies, D. H., Lehner, K. R., and Folta, K. M. 2006. Green light adjusts the plastic transcriptome during early photomorphogenic development. Plant Physiol. 142, 1256-1266. Folta, K. M. 2004. Green light stimulates early stem elongation, antagonizing light-mediated growth inhibition. Plant Physiol. 135, 1407-1416. Frechilla, S., Talbott, L. D., Bogomolmi, R. A., and Zeiger, E. 2000. Reversal of blue light -stimulated stomatal opening by green light. Plant Cell Physiol. 41, 171-176. Kim, H.H., Goins, G. D., Wheeler, R. M., and Sager, J. C. 2004.Green-light supplementation for enhanced lettuce growth under red- and blue-light emitting diodes. HortScience 39, 1617-1622. Nishio, J.N. 2000. Why are higher plants green? Evolution of the higher plant photosynthetic pigment complement. Plant Cell and Environment 23, 539–548. Terashima I., Fujita T., Inoue T., Chow W.S., Oguchi R. 2009. Green light drives leaf photosynthesis more efficiently than red light in strong white light: revisiting the enigmatic question of why leaves are green. Plant & Cell Physiology 50, 684–697. Zhang, T., Maruhnich, S. A., and Folta, K. M. 2011. Green light induces shade avoidance symptoms. Plant Physiol. 157, 1528-156. Wang, Y. & Folta, K. M. Contributions of green light to plant growth and development. Am. J. Bot. 100, 70–78 (2013). Zhang, T. & Folta, K. M. Green light signaling and adaptive response. Plant Signal. Behav. 7, 75–78 (2012). Johkan, M. et al. Blue light-emitting diode light irradiation of seedlings improves seedling quality and growth after transplanting in red leaf lettuce. HortScience 45, 1809–1814 (2010). Kasajima, S., et al. Effect of Light Quality on Developmental Rate of Wheat under Continuous Light at a Constant Temperature. Plant Prod. Sci. 10, 286–291 (2007). Banerjee, R. et al. The signaling state of Arabidopsis cryptochrome 2 contains flavin semiquinone. J. Biol. Chem. 282, 14916–14922 (2007). Goggin, D. E. & Steadman, K. J. Blue and green are frequently seen: responses of seeds to short- and mid-wavelength light. Seed Sci. Res. 22, 27–35 (2012). Mandák, B. & Pyšek, P. The effects of light quality, nitrate concentration and presence of bracteoles on germination of different fruit types in the heterocarpous Atriplex sagittata. J. Ecol. 89, 149–158 (2001). Darko, E. et al. Photosynthesis under artificial light: the shift in primary and secondary metabolism. Philos. Trans. R. Soc. B Biol. Sci. 369 (2014). Lu, N. et al. Effects of Supplemental Lighting with Light-Emitting Diodes (LEDs) on Tomato Yield and Quality of Single-Truss Tomato Plants Grown at High Planting Density. Environ. Control Biol. 50, 63–74 (2012).

The plant has been very delightful to grow up to this point with no issues the smell fruity blueberry skunk is very strong. And it looks like she needs two more weeks to finish I will keep a close eye on maturity amber colour . There buds start to show a purple color deep in the buds it is very beautiful to see. Thank you for reading I will continue to update have a happy grow

Came home from vacation to gorgeous ladies and their light fragrances. More to follow soon.

30 September 2020 Sunset Sherbet Plant is growing very strong and the bottom 3 cola branches are being stress trained to all edges of the pot, this helps - with all the branches being exposed to the light and to grow the same height as the rest of the canopy. The stem is of this plant is growing really thick 🍑 about 1cm thick Leaves are big and strong reaching ( 15,5cm length ) My experience with growing Sunset Sherbet so far ( Week 6 Day 2 ) This strain from Cape Ape Seeds is actually so good, just the plant itself is a bright lime green and the nugs it will carry is going to be Frosty Purple❄️💜 nugs. By growing this beautiful strain so far it has grown very healthy and just in general very fast, this plant has no problems so far and all it wants to do is continue growing. Do-Si-Wine The Do-Si-Wine is growing very well, a very moderate growth as it says in it’s subscription, but none the less still a very grow so far. The bottom 4 colas are all stress trained to the edges of the pot to ensure each branch from each cola gets to grow outwards in its own space and to get more light. The stem is about 0.7cm thick which is not that thick compared to the SunSet Sherbet. While writing this I noticed my she has SNAPPED from her previous stress straining session, I was checking out the stem thickness and noticed the main stem had snapped. But luckily this is not the first this happened and I know how to fix this. To fix this all you need is some tape, now see if the plant didn’t completely break off you can still tape the plant back together and the plant should heal itself within a few days, although I need to wait a bit before I stress train this one again. She started making pistols🤗, but I’m not sure if this is because of the snap or if it’s getting ready to start blooming. All the side branches from the bottom 4 colas are all nice and long growing at a nice rate. The leaves are nice and strong reaching ( 11cm in length ) My experience from growing Do-Si-Wine 🎶🍷 from Cape Ape Seed seed bank is very good so far, on the site it says moderate growth difficulty and it is quite accurate compared to the Sunset Sherbet’s easy growth difficulty, it’s quite fun working with a moderate growth because the plant needs more tending to, for instance the side branches are thinnish and need to be stress trained often to reach the end of the pot, the plant is also very stiff because she snapped without me realising and had to tend to the break a day later. Also while growing this plant I noticed that the plant’s leaves are very dark green and the bud it’s going carry is going to be white so I can’t wait to see how she makes her buds.

I had to take a big decision. I know it is not good it is way too hot in the tent but needed to remove from my garden because of some reasons. Firstly, illegal which is fine but I do not want to take a risk for 3 g of harvest. She should start flowering in autumn when less sun and weather is basically shitty here in London it is okay to grow but when starts flowering.... so I planted an auto and saw that it wont yiled good so I was thinking what will happend to my Zkittlez in autumn when mush less sun and weather is going down. So realised I can have a 2-3 m plant but it ain't gonna flower just a bit. Soni decided to put under artificial light but it is summer my plants are suffering in the tent. Inhave no choice I will try to manage maximum I will cut back. Hopefully all goes ok. Day 86: Fucked up she was totally wilt I removed all the leaves basically the stalk left only..... she will be okay

Royal Gorilla Week 16 11L Pot LED: SP250 (245W) for Flow. Stage Canna COCO Mineral Nutrients: 👇 Flawless Finish: 2 ml/L

🍊 🐶 💜 🐘 🍊 🐶 💜 🐘 🍊 🐶 💜 🐘 🍊 🐶 💜 🐘 🍊 🐶 💜 🐘 🍊 🐶 💜 🐘 🍊 🐶 💜 🐘 🍊 🐶 💜 🐘 🍊 🐶 💜 🐘 Welcome to week 13, my fellow growmies!! 💚 💚 💚 She's so cute. 😍 I need to harvest soon within the next 2 weeks, so I stopped feeding end of this week. 🙏 The trichomes look good too already! 😛 DAY 85 Watered with 2ml bloom + pk + 3ml growzyme + humics + bigfruits 💧 DAY 87 Watered with 2ml bloom + pk + 3ml growzyme + humics + bigfruits (1ml plantmagic calmag) + epsom 💧 DAY 90 Feeding stop. Watered with 5ml growzyme + humics + bigfruits 💧 Thanks for stopping by, it's a true pleasure to have you as visitors!! 💚 💚 💚 😘 💜 🐘 ______________________________________________________________ About Sour Tangie Dawg cannabis seeds Sour Tangie Dawg is a sativa dominant cross between the famous Tangie and Chemdawg. Expect a combination of sweet & fruity mixed with a gassy, jet-fuel flavour. The amazing mix of citrus, tangerine, pine and gasoline produces uniquely rich, dank buds. The powerful sativa high is strong, uplifting and long lasting, great for creativity and socialising. Chemdawg is the parent of OG Kush, all Diesel strain originate from Chemdawg. The Tangie is originally a Skunk hybrid strain but extremely fruity with the trademark Tangerine flavour. This strain is potent with THC-levels over 20% alongside very generous yields of top quality weed, very suited for hash and rosin producers. If you’re looking for a strain to produce the best tasting concentrates this Sour Tangie Dawg is a proven winner! She easy to grow and the perfect choice for SCROG growing due to her growth speed and stretch. We advise switching to 12/12 light when 75% of the net is filled. For outdoor growers the harvest period is early October. Indoors she’s finished after 9 weeks of flower - fast for a sativa dominant strain. We recommend growing in soil with organic nutrients for the best tasting weed. Get some fantastic genetics here: https://supersativaseedclub.com/ 💜 🐘 ___________________________________________________________________________ SETUP: 80x80x180 cm Zelsius 240W Full Spectrum LED IR UV dimmable DW240H-A6-HS Heatsink color red LED Chips: 512pcs SAMSUNG LM301H + 24pcs Osram 660nm + 8pcs Osram IR 730nm + 8pcs UV 385nm Color mix: 2700K + 4000K 2,8umol/J Driver HLG-240H-C2100B Coverage: veg 5x3ft / flower 4x2ft Product size: 628x205x68mm Green Buzz Nutrients Shouts go out to my sponsors @GreenBuzzNutrients, thanks so much for your support! ❤️ If anyone would like to try their amazing organic products, use code GD42025 for generous 25% discount (for orders of minimum 75€) ✨ https://greenbuzznutrients.com/ Biobizz Lightmix custom exhaust fan 320/270cm³/h Carbon Active Granulate 240cm³/h tab water pH 8 - EC 0,25 with Calmag to 0,5 Advanced Hydroponics pH minus Grow + Bloom to pH 6.2 🍊 🐶 💜 🐘 🍊 🐶 💜 🐘 🍊 🐶 💜 🐘 🍊 🐶 💜 🐘 🍊 🐶 💜 🐘 🍊 🐶 💜 🐘 🍊 🐶 💜 🐘 🍊 🐶 💜 🐘 🍊 🐶 💜 🐘

I got 70 gram dry buds and 30 gram of trim

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I’m so proud of the transition. I gave them a defoliation during and it didn’t slow them down! They’ve shot their worst pistols now so I’m so glad to be officially in bloom!

Another week down look at that canopy 😍 I think the stretch has finished and there’s no need for the second net so it’s come down. Not a lot a work this week a bit of defo and top dressing. Yeah for the first time this grow no a lot to say I guess……. Till next week let get it 💪🏽

Coseché hace un poco más de 2 semanas y he ido probando inevitablemente, y es bastante bueno lo que se aprecia. Poco a poco los brotes van impregnandose de un agradable olor a crema dulce, el humo es bastante edificante y golpea fuerte, no raspa en la garganta que es lo que agradezco. Espero poder dejarlas en frasco lo más posible y así poder probar su sabor final y bien curado. Gracias a quienes han visto y compartido comentarios, estaré subiendo las actualizaciones 👌🏽

These ladies are doing mighty fine! The smell is unreal! Almost like walking into a candy shop! The color, cannot be better. I do have 3 purple phenos and 2 green. But even the green phenos have alot of purple. Gonna be a some beautiful stuff to say the least. Noticing some minor foxtailing on one, has ro be genetic. The environment is on point. Intoduced Big bud supplement to them this week, and they seem to love it so far..

The tallest pheno is ready and being flushed for a couple of days now, rhe others are close but still consuming nutrients at a strong rate , I think they will take at least 1 more week. They smell very much like gelato as a group but are all very different from one another .

Day 28 - These ladies are growing like crazy! 2 of them are already almost as tall as my white widow autos that are about 2 weeks ahead! Day 30 - Still stretching like crazy, starting to look much better though I have to say! Day 32 - Ladies are starting to get nice & purple!

Planta com ótimo desenvolvimento, não apresentou problemas em nenhuma etapa da sua vida, flores densas, bastante resina , ótimo rendimento, uma das melhores automaticas que tive o prazer de cultivar, sabor doce, lembrando amora.