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

We’ve had some nice weather this week. So far so good. I just hope to get her through flowering, as she is supposed to be a very small plant. Other than that the bottom leaves that may be dying I think she should be okay? For now it’s just sticking to water + worm tea & a drop of Black Molasses.

*english version below* HydroLab Germany – Woche 5: Transfer-Protokoll & Nährstoff-Experiment Willkommen zurück im Labor – hier, wo die Blasen nie aufhören und die Wurzeln das wahre Forschungsobjekt sind. 🌿⚗️ 🔬 Statusbericht Die Probandinnen sind offiziell umgezogen – hinein ins große RDWC-Hauptsystem. Dort warten jetzt 30-Liter-Hydroboxen und das leuchtend orange Scrog-Netz, bereit für die finale Wachstumsphase. Nach wochenlangem Formen, Toppen und horizontalem Zwangstraining steht jetzt ein gleichmäßig breiter, dichter Teppich aus Trieben – perfekt, um das Netz Stück für Stück zu füllen. ⚙️ Neues Experiment: Advanced Nutrients pH Perfect im Test Mit dem Umzug startet auch ein neuer Versuch: Das Nährstoffsystem wurde auf Advanced Nutrients Grow, Bloom & Micro umgestellt – plus B52 als biochemischen Stimmungsaufheller. Aktuell laufen 150 ml pro Komponente im Gesamtsystem, was einen vorsichtigen EC von 1,1 mS/cm ergibt. Der Plan: Erstmal beobachten, wie die Damen auf das neue Futter reagieren, bevor nachdosiert wird. Wenn das pH Perfect-System hält, was es verspricht, könnte das die Pflege im RDWC deutlich entspannen – konstantes pH-Level wäre ein echter Gamechanger. 🌱 Beobachtungen Die Pflanzen wachsen weiterhin flach und breit, genau nach Laborvorgabe. Der blaue Adlite-Zusatz zeigt Wirkung – internodale Abstände sind kürzer, der Wuchs kompakter. Die Wurzeln? Ein Traum in Weiß, vital und kräftig verzweigt. Und für die Skeptiker gibt’s noch ein Foto aus dem Archiv: Der letzte 30-Liter-Eurobox-Wurzelblock. Viele hielten die Kisten für überdimensioniert – bis sie sahen, dass das Volumen komplett durchwurzelt war. 💦 Forschung lacht zuletzt. Nächste Schritte Triebe weiter gleichmäßig ins Netz flechten, bis ca. 75 % der Fläche bedeckt sind. EC behutsam zwischen 1,1 – 1,2 stabil halten. In Kürze: Lollipopping & Defoliation – das große Entlaubungsprotokoll. 💡 Labornotiz Gute Forschung braucht kein Schulterklopfen – nur klare Daten, sauberes Wasser und ein stabiles Wurzelmilieu. HydroLab arbeitet nicht für Likes. HydroLab arbeitet für Erkenntnis. ------------------------------------------- HydroLab Germany – Week 5: Transfer Protocol & Nutrient Trial Welcome back to the lab — where the bubbles never stop, and the roots are our main research subject. 🌿⚗️ 🔬 Status Report The subjects have officially moved to their new habitat: the main RDWC system, equipped with 30L hydro pods and a bright orange Scrog grid ready for containment. After weeks of shaping, stretching, and topping, the plants have developed a wide, even canopy that’s perfect for the Scrog transition. ⚙️ New Experiment: Advanced Nutrients pH Perfect Trial The nutrient formula has been switched to the Advanced Nutrients trio (Grow, Bloom, Micro) — assisted by B52 as a metabolic booster. Each 30L pod received 150ml of each, which resulted in a conservative EC of 1.1 to start with. We’ll monitor pH stability and uptake closely over the next few days. If the pH Perfect tech performs as advertised, it could mark a turning point for long-term RDWC consistency. 🌱 Observations Plants show strong lateral growth and a balanced response to training. Internodal spacing remains tight, thanks to the addition of the blue Adlites. Root systems continue to impress — long, dense, and pure white. One photo even shows the final root mass from the last run — the infamous “Eurobox root brick.” People laughed at the 30L containers, but seeing how completely they filled proves the design worked exactly as intended. 💦 Next Steps Keep weaving the shoots into the Scrog grid until 70–80% coverage. Maintain EC around 1.1–1.2 while monitoring uptake rate. Prepare for the main defoliation and lollipopping session once the stretch phase begins. 💡 Lab Notes Sometimes, good science means ignoring bad opinions. HydroLab doesn’t build for approval — we build for data, roots, and perfect canopies. 🔖 Tags #HydroLab #RDWC #Scrog #AdvancedNutrients #PHPerfect #B52 #DIYhydro #CannaScience #LegalGrowGermany #GrowTech #LEDgrow #MarsHydro #ACInfinity #Bluelab #RootScience

CannaFuel CBD+ sind unsere bisher höchsten CBD-Samen mit einem hohen CBD-Gehalt von 28 % und einem niedrigen THC-Gehalt von 0,5 %. Da diese Samen fast THC-frei sind, können sie in vielen Ländern legal angebaut werden, die den Anbau von Cannabis mit niedrigem THC-Gehalt zulassen. Außerdem taucht das Cannabinoid, über das CBG in aller Munde ist, in Original Sensible Seeds auf. Die Analyse zeigt, dass CannaFuel CBD-Samen einen CBG-Gehalt von 0,37 % produzieren, der im Allgemeinen nach dem Aushärtungsprozess ansteigt. CannaFuel CBD+ sind vollständig feminisierte Cannabissamen und haben eine Indica-Sativa-Linie, daher wachsen die Pflanzen zu einer mittleren Höhe heran, die sich wiederum für den einfachen Anbau im Innenbereich eignen, mit dem zusätzlichen Vorteil einer kurzen Blütezeit von nur 55 60 Tagen. Auch die Produktion lohnt sich mit Erträgen von über 550 m2. Diese therapeutischen Samen mit hohem CBD- und niedrigem THC-Gehalt können auch im Freien angebaut werden und entwickeln starke und robuste Pflanzen, die ihre Knospen gegen Ende des Monats September / Anfang Oktober ernten. CannaFuel CBD+ zaubert einen tief erdigen Duft mit der Dominanz des Myrcen-Terpens, das würzig-pfeffrige Caryophyllen und das nach Pinien duftende Pinen sind ebenfalls sehr präsent mit Zitrusnoten, die sich aus Limonen entwickeln. Dieses starke Terpenprofil liefert auch eine Reihe von therapeutischen Werten, einschließlich entzündungshemmender und stressabbauender Vorteile. CBG (Cannabigerol) kann sich nach der Ernte und nach dem Aushärtungsprozess weiterentwickeln, was diese Sorte zu einer idealen Sorte für Extraktionen und Öl macht. Vom Anfänger bis zum erfahrenen Züchter sind CannaFuel CBD+-Samen die perfekte Wahl für diejenigen, die ein medizinisches Interesse an der Heilkraft von medizinischem Marihuana haben, mit dem zusätzlichen Vorteil eines minimalen THC-Gehalts, diese Samen werden nicht die übliche psychoaktive Wirkung hervorrufen, die normalerweise mit Unkrautsamen verbunden ist und sein kann legal in Ländern angebaut, die Samen mit niedrigem THC-Gehalt zulassen. Cannabinoid-Analyse: 28 % CBD, 0,5 % THC (28 % CBDA; 0,5 % THC) – 0,37 CBG Alle schriftlichen und visuellen Materialien sind nur für Informations- und Bildungszwecke bestimmt. Die ursprüngliche CannaFuel CBD+-Sorte von Sensible Seeds besteht zu 40 % aus Indica und zu 60 % aus Sativa Um die Samen der CannaFuel CBD+-Sorte von Original Sensible Seeds richtig zu lagern, wird empfohlen, die Samen in einem kühlen, trockenen und dunklen, luftdichten Behälter aufzubewahren, der sowohl mit dem Namen der Sorte als auch mit dem Lagerdatum angemessen gekennzeichnet ist, um die Identifizierung und genetische Konservierung der Samen zu erleichtern. Wenn es legal ist, die CannaFuel CBD+-Sorte von Original Sensible Seeds an meinem Standort zu keimen, was ist die beste Technik? Es gibt viele Methoden, um CannaFuel CBD+-Sortensamen zu keimen, wenn die Gesetze in Ihrem Land die Keimung von Cannabissamen zulassen. Die Papierhandtuchmethode ist eine gängige Technik zum Keimen von CannaFuel CBD+-Samen. Eine weitere beliebte und bevorzugte Methode ist das Einpflanzen der Samen direkt in feuchtes Substrat. Damit beide Keimmethoden erfolgreich sind, ist es wichtig, dass die Samen feucht und warm bleiben, aber nicht austrocknen. Wenn Sie die Papiertuchmethode verwenden, vergraben Sie die Samen der CannaFuel CBD+-Sorte, sobald sie gekeimt haben, vorsichtig im Wachstumsmedium. Diese Woche ok ich mich entschieden, ein großes Zelt Mars Hydro 120•120 zu installieren, für eins und eine Lampe mit großer Reichweite FC E4800. Ich habe die Klimaanlage eingerichtet, jetzt liegt die Temperatur bei etwa 24, ich habe zwei Lüfter installiert, um den Secret Jardin Monkey Fan 20w zu blasen, ich wollte sie schon lange kaufen. Die Heizung funktioniert auch! Hoffe es wird bald wärmer 😅

Everything was going well in the first week, but unfortunately, a mistake caused stress in the plant. The distance between the lamp and the plant was too short. This week, I gave the plants a small amount of root growth stimulant

Nicole x OG Kush

Pictures are from end of week 6 | buds are insanely fat 🤘🏼 | the plant is an absolute beast compared to my last run | buds are still growing each day | used some yoyos to adjust the canopy a bit | under canopy light seems to do its job quite well | lower buds are also developing really well | I think this will be a huge harvest

I am so proud of her, with the high humidity and extra rainfall she pushed through. I noticed her swell continued in the last week so it’s safe to say she is in good shape.

This week my daughters grew a lot, I gave them the same Plagron Nutrients as last week. This week I had to increase the dosage of Terra Grow. This is the last time I add terra grow to my plants, according to Plagron I have to start giving them flowering nutrients from the third week. The girls look healthy. Today I sprayed the leaves with some water to moisturise them(From now on, I do this everyday.). I've added a fan to strengthen them.

SUNDAY 4/21: I fed them about 1/3 gallon each today. Switched to Beastie Bloomz and increased terpinator. I inspected them for nanners and found none today. Will take some photos tomorrow- MONDAY: Too busy with life to spend much time in the garden today. TUESDAY: I rearranged and took some photos today. WEDNESDAY: I took some photos and a video. I watered all but one of the C4 hybrids today. Only the best one still needs water..tomorrow- THURSDAY: I watered with about 1/3 gallon and included some terpinator, calimagic, and beastie bloomz. I did a bunch of training on them to get some separation and better light penetration into the lower flowers FRIDAY: I did some more training on them today and I made some improvements to my fresh air a/c intake in the tent that dropped the temp a couple of degrees, and the new dehumidifier is keeping the RH right where I want it..45-50%.👌 This allows the evap cooler to be more effective at cooling as well...above 50% RH and it's basically just a fan..

23.04.2024 Continue into week 8 Replaced all filters in the system and cleaned them. Mixed a new batch with the following components: 20+25ml AN Connoisseur Bloom A+B Total volume: 34 liters Electrical Conductivity (EC): 1.0 Target EC for this week: 0.8-1.0. Adjustments will be based on plant observations. Performed one long misting session (3 minutes). Environmental Conditions: Outside temperatures going up, today is raining but this week start higher temps and humidity Wedding Cheesecake: One girl is gonna finish in this week, Two others probably in next. Frutti terps in this, Two pheno in total from 3 girls' Tropicana Cookies: Phenomenal strain; One girl is going to finish this week and second couple days after . Two pheno in Tropicana's girls Purple Lemonade: Tall plants, massive producer, all three girls will be in 9 week provably. Here so far all three girl share same characteristics and bud structure Beautiful and high odor in the room! Lighting Parameters: PAR Map: Maximum PPFD is 950, minimum PPFD is 650. VPD: Ranges from -1.1 to -1.2. Daytime Temperature (DT): 23-24°C. Nighttime Temperature (NT): 19-20°C. Leaf Temperature: 21-22°C. Light Distance: 45-55 cm from the plants. CO2 Levels: 700+ ppm. HLG Scorpion Diablo: Set at 70%, positioned at a 45-55 cm distance. Girls drink less water, so for this week and till the end of flowering new misting timing's Daytime: ON for 70 seconds, followed by 30 minutes OFF. Nighttime: OFF for 70 seconds, followed by 35 minutes OFF. Nutrient Tank (NT): pH: Maintained between 5.80 and 6.00. Stable PH, small drifting up and downs EC: 1.05. Temperature: 19-21°C 25.04.2024 TrolMaster toys arrived! Purchase new DST2E, DSP2E, DSH2E, AMP3+probes. Another DSH2E and DSP2E ordered to complete this grow box! Replaced all filters in the system and cleaned them. Mixed a new batch with the following components: 25+30ml AN Connoisseur Bloom A+B. Total volume: 17 liters Electrical Conductivity (EC): 1.05 Tomorrow Tropicana Cookies harvest! Put bucket with this girl on separate line for flushing Wedding Cheesecake also finish soon, probably in next week, Wednesday think... Purple Lemonade still need full week or more...Exceptional odors Temps and humidity outside start to raises, hope i will finish this run before Tropical heat Lighting Parameters: PAR Map: Maximum PPFD is 950, minimum PPFD is 650. VPD: Ranges from -1.0 to -1.1. Daytime Temperature (DT): 23-24°C. Nighttime Temperature (NT): 19-20°C. Leaf Temperature: 21-22°C. Light Distance: 45-55 cm from the plants. CO2 Levels: 700+ ppm. HLG Scorpion Diablo: Set at 70%, positioned at a 45-55 cm distance. Daytime: ON for 70 seconds, followed by 30 minutes OFF. Nighttime: OFF for 70 seconds, followed by 35 minutes OFF. Nutrient Tank (NT): pH: Maintained between 5.80 and 5.95. Stable PH... EC: 1.05. Temperature: 19-21°C 26.04.2024 Connect TrolMaster components into the Tent-X system. Program DSP2E, Temperature DST2E, Humidity DSH2E, as well as the AMP3 sensor with PH and EC probes, are all in place. After calibrating the probes, AMP3 module works perfectly! It has a quick response in measurements, is accurate, and I am very happy about the possibility of online monitoring of liquid values. After day off use i can tell that all readings are very consistent, compared with Milwaukee, totally without all over the place measurements. Perfectly steady and on spot receding! The Program device runs flawlessly all day, and I hope it has solved all the problems I had with DH48-S timers. The humidity control operates without errors throughout the day, and it’s nice to see in the app when the module is active. Raise light as much as i can..50-55cm from canopy. Set off misting time from 30min to 35min @ day time , and from 35min to 45min @ night time Flush Tropicana Cookies' for one more day, tomorrow harvest, prepared tent for drying with humidifier , ventilation and temperature and humidity controllers PAR Map: Maximum PPFD is 850, minimum PPFD is 500. VPD: Ranges from 1.0 to 1.1. Daytime Temperature (DT): 23-24°C. Nighttime Temperature (NT): 19-20°C. Leaf Temperature: 21-22°C. Light Distance: 45-55 cm from the plants. CO2 Levels: 700+ ppm. HLG Scorpion Diablo: Set at 65%, positioned at a 50-55 cm distance. Daytime: ON for 70 seconds, followed by 35 minutes OFF. Nighttime: OFF for 70 seconds, followed by 45 minutes OFF. Nutrient Tank (NT): pH: Maintained between 5.80 and 5.95. Stable PH... EC: 1.05. Temperature: 19-21°C 28.04.2024 First harvest in this run! Tropicana Cookies No1 is a winner.) First Tropicana Cookies is harvested on 89 day from seed. Total 55 days off flowering. Fast flowering indeed as fast in vegetative stage. Cut this girl in branches and hang upside-down in smaller tent for drying Set RH @ 55% , temperatures not able to control so they will be something around 20-21 in drying tent Second Tropicana will be chopped within a couple off days. Checking trichomes with microscopes can tell that one Purple Lemonade is also going to finish in next days Somme lady's will take full 9 weeks or so.. Lowering light intensity, EC in tank start to raise slowly so i will start to adjust according to condition. Currently 0.85EC is perfect strength i think PAR Map: Maximum PPFD is 850, minimum PPFD is 550. VPD: Ranges from - 0.9-1.0 Daytime Temperature (DT): 23-24°C. Nighttime Temperature (NT): 19-20°C. Leaf Temperature: 21-22°C. Light Distance: 45-55 cm from the plants. CO2 Levels: 700+ ppm. HLG Scorpion Diablo: Set at 65%, positioned at a 45-55 cm distance. Daytime: ON for 60 seconds, followed by 30 minutes OFF. Nighttime: OFF for 60 seconds, followed by 35 minutes OFF. Nutrient Tank (NT): pH: Maintained between 5.80 and 5.95. Stable PH... EC: 0.85. Temperature: 19-21°C Week 8 off Flowering in Summary 80 litter off RO water, 120ml+150ml AN connoisseur A+B 45kW electricity in total for light, Pumps and AC Infinity Fans. 42kW for Light + 2kW Dehumidification + AC Infinity ventilation Week start @ 1.1EC, nutrient strength., week finish with 0,87EC Tropicana Cookies is first harvested on day 89 from sprouting , week 8 off flowering Purple Lemonade is on second place with harvest on day 91, last day off 8 week off flowering PH was stabile and move from 5.70 min to 5,9 max. Light distance for this week - 50-55cm from tallest top , PPFD levels around 900 in center, trough whole week. Lowest reading 500 @ corner Temperature are from 20c at start off day to 24.5c max at some points. Night temps around 19.5-20c. Outside humidity is generally low This week i have install TrolMaster AMP3 sensor and humidity, temp and program devices Day RH is moved from 45% to 55% max, at night times drop to 45-48% Lighting Parameters: PAR Map: Maximum PPFD is 900, minimum PPFD is 650. VPD: Ranges from -1.0-1.1. Daytime Temperature (DT): 24.5°C. Nighttime Temperature (NT): 20°C. Leaf Temperature: 22°C. Light Distance: 45-55 cm from the plants. CO2 Levels: 700+ ppm. HLG Scorpion Diablo: Set at 65%, positioned at a 45-55 cm distance. Daytime: ON for 70 seconds, followed by 25 minutes OFF. Nighttime: OFF for 70 seconds, followed by 35 minutes OFF. Nutrient Tank (NT): pH: Maintained between 5.8 and 6.1 EC: 0.87-1,1. Temperature: 20-21°C

Blue dream begins her flushing! She's got about 5 % trichomes and a very nice fruity citrus smell. Buds are decent size and the plant looks happy. Very excited to smoke this round 2 run of Blue Dream. It's the final countdown to harvest! Thanks for taking a look at my grow! 👽🌳

Idhdb

Esta semana hicimos la última poda de bajos y alicales , es una de las últimas podas q hacemos! Después de esto la vamos a pasas a 10 litros y ya la mandamos a florecer creo q esta más q lista para arrancar el proceso de floración

🔥🧀

Week 12 november - 18 november

🍁Dicas e sugestões? As meninas agradecem. 📸Update de fotos, vídeos e informações diariamente. DAY 15 Muito feliz com a germinação da COP, ela está se desenvolvendo muito bem. Good girl! 💡Coloquei a luz em 50% de potência e gostei do resultado. 💦Reguei a C1 e C2 (250ml cada) com BACTOHEMP bacilos e bactérias + Acophyllum extrato de algas. Elas parecem felizes :) DAY 16 Escoras de apoio para C3 e C4 até o transplante. COP está muito bem. O transplante será realizado antes das meninas dormirem (menos stress para as raízes) e serão regadas com 💦1L de água + 🥄1 colher de chá de BACTOHEMP. DAY 17 C1 e C2 estão cheias de vigor. COP e C4 reagiram muito bem ao transplante. C3 um pouco triste com o processo. DAY 18 Todas as meninas estão lindamente bem! C3 já está com mais saúde e feliz, 24h após o transplante. 📝NOTA: 💡Aumentei o dimer do Led para 75% ⚠️Temperatura aumentou 3°C no growbox. DAY 19 🚫🐜Antes das meninas dormirem vou borrifar óleo de neem (250ml) para evitar pragas e insetos. DAY 20 Hoje foi dia de beber água! Dia de rega, as meninas estão todas saudáveis. DAY 21 C1 e C2 estão com muita sede! Estava regando 125ml/dia, hoje aumentei a para 250ml/dia. Após a difícil germinação COP está crescendo muito bem. 🎃Obrigado por verificar o meu cultivo.