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

This is my favorite new auto strain now. Enjoyed every part of the grow. She likes the nutrients very light, but was a simple grow with zero problems. Very sticky plant but not too loud. Curing in the Cannatrol as of now and will update in a couple weeks.

Week 4 flower : everything’s looking nice still got the lights about 7-9” from top of canopy without any issues . The humidity has gone up to 50% in day and I can’t really get it any lower I’ve already got a dehumidifier so don’t want to get another one . I would like to lower to 40-45% and lower for last 2 weeks but can’t see that happening . I’ve started the pk from end of week 4 (day 28 )at 1ml per litre this took my ec to 2.2 I will see how it goes and maybe up it to 1.2-1.5 and I’m going to use the pk for 7-14 days then I will start the flush I also lowered the silicone to 0.5ml per litre 3x blue cheese plants are on the left but has spread over and 1x sunset sherbet on the right

The plants are doing amazing! Both are producing more and more trichomes, and the buds are noticeably thickening up.🌱 #1 (the tall one) continues to impress—it’s now giving off a strong tropical mango scent! The aroma is so sweet and fruity, it’s crazy. Meanwhile, #2, despite being so small, has developed a surprisingly large main bud! The smell is completely different, though—leaning more towards a hazy, complex scent that’s hard to describe.🤔 Super happy with the progress so far—let’s see what the next weeks bring!😊

An amazing week 7 is about to start Sunday

I think Iv burnt one of the Santa Marta’s, can anyone confirm this from the videos/photos ? Other then that all is well. I actually just flipped to 12/12 to start flowering the photoperiods that are surrounding the 4 autos. Might try a scrog net for the fist time when the autos are done. Stay high growmies 🤙🐞

completamente recomendadas. fáciles de cultivar y resistentes a plagas.

09/06/2018 She has grow a little😀 bit,going to 1/2 strength nutes in res change today. Can't believe how thick her stem is! Had slight leaf tip burn from ferts but not enough to be concerned about. Started week with 9 liters in DWC bucket. Will top as needed with plain water. . Note: remember rinse hydroton! 09/10/2018 Getting nice growth this week,a little more leaf tip burn,but not excessive amount,also I topped her today I believe that I will go to 3/4strength next change and full strength for flowering.which is when I bring red spectrum up to 100%.

Quarta settimana stanno crescendo ben robuste.ancora 2/3 settimane prima di metterle in fioritura''.... Anche i piccoli peyotes stanno crescendo

Bonjour à tous,là semaine c’est bien passé pour mes bébés 👍 toujours traité avec douceur 😜. Elles entre dans leurs 4ème semaine de floraison 😉. Un grand merci à tous à très bientôt salut 😜.

Que pasa familia, vamos con la cosecha de estas Rainbow Melon de FastBuds, las flores son bien compactas y van repletas de resina, son muy pegajosas, tienen tonos verde oscuros bien bonitos, y tiene unos aromas dulces y tropicales bastante marcados. Es una cepa normal de cultivar, es de ciclo de 2 meses y medio y bien agradecida, tiene buenos satélites. Hasta aquí todo, Buenos humos 💨💨💨

Week 5 flower is progressing well. bud sites are getting bigger with more pistils and trichs on leaves everyday. This will not be a 8 week strain I'm thinking 10 but will calibrate if necessary to get the full potential of this genetic as I can see she is a special one already!

- I didn't weight wet buds. - The trichomes photos have been taken just before the harvest on buds all over the plant. - First time I see and have pink trichomes, they are beautiful! - The hash ball was a little less than 1cm diameter and was really good :) - Drying was made at 20°C and around 50% of humidity. - Humidity in jar between 60 and 65% on the first day, temperature around 20°C. Veg time : 56 days. Flowering time : 63 days. Total time from seed to harvest : 119 days. Height : 81cm Pot size : 26l

We had a nice jump in height this week; still drinking loads of water every day. One of the plants has this wierd mutated limb that I have been watching progress, kinda interesting. Just chugging along, second week of flower, everything looks to be on schedule so far. 🔮

Week four for this beauty! This week, one and half liter of water, a few tweaks to the LST, and, as always, lots of love! It doesn’t seem to have been stressed by the topping. You can see how fast it’s growing. Stay tuned!

Just wish she had got more purpose but everyting elses is Perfeckt!! Samples A bit she did not show purple but she tastes of it and tickles your nose like a purple plant!!

Doing great. Just turned on the big light. Hlg-600. The growth this week was pretty phenomenal. Won’t be that long until I’m stringing my scrog.