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).

Start of day 91 ...... January 8 2022 Start of week 13 ........ 65 DAYS INTO FLOWERING 😕 LOOKS LIKE THERE GONNA GO A LITTLE LONGER THEN EXPECTED ? 😕 Gonna be honest , I didn't expect it to go over 85 days but here we are ........ ( I BELEIVE IT HAS ALOT TO DO WITH THE SIZE OF MY GROW MEDIUM , AS I AM RUNNING 45 LITERS OF SOIL MEDIUM) .... ( OMG THEY SMELLING GREAT ) !!!!!!! Check out the full grow video on latest weekly update Super Exceptional Growth Daily Still adjusting LST when needed and leaf tucking....... Water Only when needed but its drinking more every otherday and adjusting lights when needed...... Rain Water Only ....... ( DAY 26 AND BOTH NL 1 & NL 2 SHOWED PREFLOWERS ) ( DAY 49 AND RESIN PRODUCTION HAS STARTED ) ( DAY 57 , EQUIPMENT FAILURE , main FAN , over heated😡 tripped breaker , reset light timers , lost a DAY, REPLACED new Main Fan 😁 back up running 👌) ( DAY 70 DID ITS FINAL FLUSHING TODAY TO GET RID OF ANY BUILDUP ) ( DAY 77 AND IT SHOWS A SLIGHT DEFICIENCIE MAYBE A CAL/MAG GETTING CLOSE TO END OF LIFE ) IM ALSO DOING VERY LITTLE, SLIGHT DEFOLIATION ( DAY 93 AND ALL IS GOOD , THERE FATTING UP ) DAY 93 .....NL 1 SHOWS MOSTLY CLEAR TO CLOUDY RESIN HEADS , LOOKS LIKE THERES STILL AWAY TO GO ....... DAY 93 .....NL 2 SHOWS MOSTLY CLOUDY RESIN HEADS , AMBER IS JUST STARTING , GETTING CLOSE BUT MORE TIME NEEDED...... I hope you enjoy my growlog...

What another great week it’s been , today is Day 39 from seed an the lil ladies have jumped into preflower 😍! Yesterday gave em the trim up of the unders , kinda popsicled you can say to each one, cause we want to focus on them colas ! This week we should see some more great progress, let them caps start stacking ! Can’t wait to see what we do next week ! Hope you all enjoy an have an amazing productive day! Peace love an positive vibes to y’all Cheers 😶‍🌫️💨💨💨💨💨🤙🏻

Are they going into flower? There is not many signs of that because i have a small leak of light between them but will see 🤞

Feliz . Cambio de macetero , ya me lo estaba pidiendo . Uf a esperar a esta belleza ! Tengo 2 más guardaditas para otro proyecto ! Feliz y agradecido siempre por respirar un día más ...contento y bendecido por el padre Sol , fuerte en nuestro camino , que ya pronto se aleja para llegar el otoño...te amo tierra y tus seres vivos ..te amo tierra

Start of week 4 8/23/25

This weather has been fucking with this grow way too much, one day it’s super cold & the other it’s like i’m living in the desert & when i get them out of my greenhouse because of the crazy temperatures it would start raining a half our later way too many times :/ i tried my best but this grow won’t be my best one🤷‍♂️🏻

So, I harvested my 2 older girls around 4 weeks ago, the 2 younger ones took that extra 4 weeks, just chopped them now! Initially, I was really upset when I harvested the first two - they just looked really bad and loads of fluffy larf. So, I wrote a negative review but I deleted it because when I smoked some, it was really good! LOL. But still just had no good aesthetic. I decided to feed the younger ones way more nutes than I was giving the other ones, and increased the rate of water feeds... and WOW. They responded so well and they came out HUGE!!!! MAN!!! These nugs came out beastly. The older ones 100% were being fed way too low a dosage of nutes, and were not watered frequently enough. I've only just chopped them all and hung up to dry. Will update with a smoke report when they're ready! So, the pics im posting are of the two younger plants that were harvested later. I do not have pics of the earlier harvest, unfortunately, but it looked terrible (from my own doing it seems as I mentioned above). As you can see in the first pic, I had to hold her up as she was falling over on her own weight because the nugs were so heavy (actually had to use many ties to keep both the plants from falling in the final 2 weeks). Not too many pics but just an idea of how they were looking. Dense, big, frosty - not SUPER gassy in smell but still smells good! The side branches were all looking like main colas! Didn't LST or anything, just a bit of lollipopping and let it do its thing! Each pic is of a different bud site. Will also update with more details such as weight when it's dry! Stay safe, friends! ┏(＾0＾)┛ -TickTockCroc

Bienvenidos a este nuevo diario de GG4 Sherbet FF patrocinado por FastBuds! Día -3 (09/01): Se coloca la semilla en tubo de ensayo con 15 ml de H20 Osmosis RO + 3 gotas agua oxigenada (H2O2) en un lugar oscuro a 25 ºC durante 24 horas Día -1 (11/01): Se prepara una maceta de 1L con sustrato PRO-MIX HP BACILLUS + MYCORRHIZAE Se humedece el sustrato muy lentamente hasta percolación profunda con H20 Osmosis RO Se hace un agujero de 1 cm de profundidad, se coloca la semilla con la radicula hacia abajo, se tapa con un poco de sustrato y se humedece ligeramente con agua en spray Se coloca parte superior botella / propagador en la zona de germinación para mantener humedad relativa alta y se introduce en el armario a 20 - 22 ºC (DLI 13 - 20/4) FastBuds 15% DISCOUNT code "NONICK" 2fast4buds.com @fast_buds_official_ @fastbuds.official 💦 BioTabs 15% DISCOUNT code "GDBT420" biotabs.nl/en/shop/ @biotabs_official 🌱Substrate PRO-MIX HP BACILLUS + MYCORRHIZAE @promixmitch @promixgrowers_unfiltered 💡2 x Mars Hydro FC1500 EVO Led Grow Light (2024 NEW FC 1500-EVO Samsung LM301H 150W LED) - https://marshydro.eu/products/fc1500-evo-led-grow-lights/ - https://www.amazon.de/dp/B0CSSGN5D8?ref=myi_title_dp

Everithing Grow fast, all is green, leaf are healthy Actually No problem 💪🏻 🤓 staY tuned for the new week upgrade 🤪

Plants are still thriving well. Watered after topping w/ proper rate for week for according to schedule PH water to 6.2 and soak pots. Temp stays high above 75 degrees humidy same until tent is opened led at 50 percent about 20 inches away

planted in July it started to grow uniformly with very fragrant leaves of Sicilian lemon peel you can smell the citrus notes in the pre-flowering leaves I enjoyed its very fresh zkitty phenotype which tended between the sour green apple and the gaseous lemon the variety is particularly susceptible at high temperatures and is the only one that on the fourth day without water this summer literally twisted its leaves on itself variety that had some problems with leaf problems but the yield was excellent with rock hard buds! THE AMAZING TERPENES THE BEST IN THE WHOLE GARDEN. GROWING SCENTS: green apple organic citrus peel TERPENES: THOSE WHO SMOKE THEM ARE STUNNING.🙌🙌😍 the complexity and flavor of zsrawberry begins with a very deep hit of hearty heavy spicy smoke which soon reveals itself as a fresh lemon zest surrounded by nutmeg spice followed immediately by the sweetness and fruit of zkitty swallowed the smoke closes with a note of completeness of the three perfectly balanced flavors that tends towards diesel, strawberry spice and a dream of blackberries and redcurrant fruit salad, lemon peel with an acid finish and a round spice of aged jam😵😭😭😍

Hey everyone :-). There is not much to tell this week :) A few came to the flowering tent, 2 are still in the vegi phase for 2 days and then come last to the flowering tent :-) The Blue Cheese and the Kosher Tangie Kush smell very good and how they should 😍👍 It will be difficult to choose 2 mums :-). I wish everyone a nice week 👌 Let it grow

All details will be added every day/week if u have any questions feel free to ask. December 4th:starting in the winter, veg and bloom will happen under 400watt hps to keep the grow room warm. the seeds have been germinating for 2 days with the wet paper towel technique, they got root and are now in soil and the rockwool cube. for now im just waiting for the seeds to show root coming out of the rockwool, then i transplant to the netpot with clay pellets straight in the dwc, untill then they get fluorescent light (max 7 days) these are autoflowers so they get 18 or 20 hours light. nutrients General hydroponics three part :micro gro bloom and calmag water: rainwater (25ppm) i hope the room wont cool of too much when the lights go out. Day 1 (December 5) seeds start to come above the rockwool and the soil Day 2 (december 6) stems start to stretch i give them both pure rain water with 100ppm calmag when they feel dry. Day 4 (december 8) still no root visible out of the rockwool Day 5 (december 9) root visible outside of rockwool cube and transplant to the 55Liter rdwc air pumps 10l/minute Day 7 (december 11) root comes trough netpot, i lowered the water by removing 3Liters

Plants bounced back nicely after A flush with flawless finish and then I flushed With advanced nutrients cal mag Some tip of leaves are burnt but I can live with that .. Mixing less water in my resivor so I can keep an eye on it and so I dont end up wasting nutes Buds are starting to form Lower my ph to 6 since it keeps climbing up for some reason Using 3ml /l of my base nutes and 2ml for everything else...ppm 1200 Other then that looks like were back on track

What another great week it’s been!! The babies are looking super healthy! We will be letting them veg out hardcore through this next week or 2 an will give them that flip into flower , but let’s take one week at a time y’all! Keep them eyes peeled for next weeks update ! I hope you all enjoy and have an amazing productive day as well as a great safe weekend! Peace love an positive vibes to y’all Cheers 😶‍🌫️💨💨💨💨💨🤙🏻

Info: Unfortunately, I had to find out that my account is used for fake pages in social media. I am only active here on growdiaries. I am not on facebook instagram twitter etc All accounts except this one are fake. Flowering day 56 since the time change to 12/12 h. Hi everyone :-) The next 15-20 days are harvested because the trichomes are 60% milky, 30% clear and 10% amber. She continues to develop her buds well and the smell is getting sweeter and sweeter :-). She doesn't cause any problems. As always, the tent was cleaned this week and all containers refilled. Stay healthy 🙏🏻👍 You can buy this Strain at : https://www.exoticseed.eu/ Type: Quick Sherbet ☝️🏼 Genetics: 75% Indica / 25% Sativa Sunset Sherbet X Black Lemon 👍 Vega lamp: 2 x Todogrow Led Quantum Board 100 W 💡 Bloom Lamp : 2 x Todogrow Led Cxb 3590 COB 3500 K 205W 💡💡☝️🏼 Soil : Canna Coco Professional + ☝️🏼 Fertilizer: Green House Powder Feeding ☝️🏼🌱 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 5.5 - 5.8

Vamos familia, actualizamos la tercera semana de floración de estas Forbidden Mochi fast de Seedstockers, Aplicamos varios productos de Agrobeta, que son increíbles para aportar una buena alimentación a las plantas. Temperatura y humedad dentro de los rangos correctos dentro de la etapa de floración. La tierra utilizada es al mix top crop, por cambiar. De 5 ejemplares seleccioné 4 para completar el indoor y trasplanté directamente a macetas de 7 litros, cambie el fotoperiodo a 12/12 y aplique una buena poda de bajos, se ven bien sanas las plantas tienen un buen color y progresan a muy buen ritmo, ya empezaron a formarse las flores y a coger tonos púrpuras rosáceos, están increíbles. Agrobeta: https://www.agrobeta.com/agrobetatiendaonline/36-abonos-canamo Hasta aquí todo, Buenos humos 💨💨💨

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