SANlight - Spannabis 2025

My Rainbow Melon plant is an absolute beast! It's definitely tied for the biggest plant in the tent, and it's by far the smelliest. The aroma is so strong and sweet, it's incredible. I can't wait to see how this one turns out! Okay, This past week has been absolutely fantastic! The weather has been incredible, and I've been able to keep the windows open almost the entire time. My plants are thriving in the humidity, and the VPD has been perfect. Everything just feels so balanced and in check.

So I flipped the switch we're now on 12/12 and the stretch is kicking in big time. Plants are very lush growth is aggressive and just simply explosive!! Keep following for the upcoming flower show!!

What do you think about these first days? The humidity is not much stable but I’m planning to buy a humidifier in the next week.

🔥🇩🇪Daily updates.🇩🇪🔥 I am open to suggestions for improvement. Write me if I do something stupid. I know that not everything is perfect, but I try to make the best of my circumstances.🤓 ——————————————————————————— Germination 01.04.24 - 07.04.24 Vegetation08.04.24 - Today 🗓️ ---------------------------------------------------------------------------- 🌱Day 15 || 😎 Everything is going great so far. I made a time-lapse recording after watering. Have fun with it. 100ml distilled, 300mlEasyGrow, 100ml distilled Humidity 53%// 26°C Light 40% //45cm//420-440PPFD 🌱Day 16 || Watering not necessary Humidity 52%// 26°C Light 40% //45cm//420-440PPFD 🌱Day 17 || I have repeated my watering routine from two days ago 100+300+100. during this time I noticed that some of the leaf tips were slightly yellow. Hopefully this is not a major problem. 🤔(Maybe a slight over fertilisation.) I have already asked a question about this and hope for the best.🙏 Humidity 53%// 26°C Light 40% //45cm//420-440PPFD 🌱Day 18 || The new leaves that have emerged all have a small yellow discolouration of one to two millimetres at the tips. These spots have not become "bigger" in the last 24 hours. I will water again tomorrow with pure distilled water. I hope to be able to start LST in the next few days. She is currently 10 cm tall and the leaf spacing is very close together. Humidity 52%// 25,5°C Light 40% //45cm//420-440PPFD 🌱Day 19 || She had a favourable growth spurt in the last 24+ hours so that I could start with the LST. I only watered her with 600ml of distilled water today. Almost three days have passed since the last watering. (66h) Humidity 52%// 25,5°C Light 42% //45cm//440-455PPFD 🌱Day 20 || Happy 420😁 Watering not necessary Humidity 52%// 25,5°C Light 45% //42cm//460-470PPFD 🌱Day 21 || Lots of yellow tips but the new leaves look better. Watered her with 1200ml of distilled water Humidity 52%// 25,5°C Light 50% //50cm//490-510PPFD

Here we are :) the are finished

Week 2 Light cycle=20/4 Light Power=73w 30% Extractor controller settings High temp= 24c Low temp= c Temp step=0c High Rh= 70% Low Rh= % Rh step=0% Speed max=5 Speed min=1 Smart controller settings (during lights on). Lights on= 02.00am Radiator on= below 9c Radiator off= above 20c Humidifier on= below 64% Humidifier off= above 67% Dehumidifier on= not in use Dehumidifier off= not in use Smart controller settings (during lights off). Lights off=00.00am Radiator on= below 16c Radiator off= above 18c Humidifier on= not in use Humidifier off= not in use Dehumidifier on= not in use Dehumidifier off= not in use VPD aim=0.4-0.8 DLI aim=15-18 EC aim=0.4 PH aim=6.2 Friday 29/12/23 #1 (Day 8) 📋 Started on its 3rd set of true leaves, she is doing fine. Saturday 30/12/23 #1 (Day 9) 📋 Looks fine. Was H=9cm D=76cm DLI=18.2 Now H=9cm D=69cm DLI=17.6 10.00pm Switch to 20/4 Light power was=86w=36% Light power still=86w=36% Lowered light by 7cm. Extractor controller settings High temp= 24c Low temp= c Temp step=0c High Rh= 68% Low Rh= % Rh step=0% Speed max=5 Speed min=1 Smart controller settings (during lights on). Lights on=20/4 (04.00am) Radiator on= below 19c Radiator off= above 20c Humidifier on= below 62% Humidifier off= above 65% Dehumidifier on= not in use Dehumidifier off= not in use Smart controller settings (during lights off). Lights off=20/4 (00.00am) Radiator on= below 16c Radiator off= above18c Humidifier on= not in use Humidifier off= not in use Dehumidifier on= not in use Dehumidifier off= not in use Sunday 31/12/23 (New year's eve) #1 (Day 10) 📋 wet the soil. Monday 1/1/24 (New year's day) #1 (Day 11) 📋 💧💧💧💧💧💧💧💧💧💧💧💧💧💧💧💧 Method= manual Neutralise=0.1ml/L Roots=5ml/L Feed=nutes Volume=200ml Easy Ph down=0 drops/L Ec=0.27PH=6.1/6.2 Time=9.00pm Runoff. Total runoff=40ml Ec=2.5 PH=5.7 💧💧💧💧💧💧💧💧💧💧💧💧💧💧💧💧 Tuesday 2/1/24 #1 (Day 12) 📋 Humidifier didn't come on autopilot. Wednesday 3/1/24 #1 (Day 13) 📋 ✂️ Topped after the 3rd set of leaves (5 fingered). Removed lower leaves and nodes (single fingered). Thur 4/1/24 #1 (Day 14) 📋 Tomorrow will be the 1st day of 18/6 so altered the light at 10.00pm Light power was 86w 36% Light power now 120w 50% Was H=11cm D=66cm DLI=18.5 Now H=11cm D=66cm DLI=21.5 She is recovering from yesterday's topping but other then that she has grown champion so far and looked really healthy. At the moment I'm just going with 4 colas, I may top more further into the grow. Back soon. Take it easy.

Had a little flush issue this week. Needed to leech the soil of any buildup from my soil grow. Plants are responding well. Large amounts of trichomes everywhere. Just hitting with the micro nutes and a few more tricks before we wrap up this grow. Running out of height in my closet these baby's are still stretching to the lights. Enjoying the grow and watchingy lady's do there thing.

1 plant was very ripe, 1 plant was almost perfect to harvest and the 3rd could take another 1-2 weeks...but it was end of 10th week of flower and i had to go on vacation, so i perhaps choped 1 plant abit too early....still awesome result!

6 weeks in veg from seedling

Day 5 - time to train and limit vertical growth

Starting out nice . High temps and humidity but moving along nicely

2nd net is up. Early bud formations are promising. holding up to the extremes pretty well, some leaves taking minor damage, but overall, she is holding up, gave her 1 night at 50F see how she would react, stressful. Not advised as it messes with her metabolism, but I want to see if it triggers any anthocyanin response. Love to see her purp up but no signs yet. My homework. Rubisco regeneration is intrinsically linked to nitrogen supply because Rubisco is a major sink for nitrogen in plants, typically accounting for 15% to over 25% of total leaf nitrogen. The regeneration phase itself consumes nitrogen through the synthesis of the Rubisco enzyme and associated proteins (like Rubisco activase), and overall nitrogen status heavily influences the efficiency of RuBP regeneration.Structural Component: Nitrogen is an essential building block for all proteins, and the sheer abundance of the Rubisco protein makes it the single largest storage of nitrogen in the leaf. Synthesis and Activity: Adequate nitrogen supply is crucial for the synthesis and maintenance of sufficient Rubisco enzyme and Rubisco activase (Rca), the regulatory protein responsible for maintaining Rubisco's active state. Nitrogen deficiency leads to a decrease in the content and activity of both Rubisco and Rca, which in turn limits the maximum carboxylation rate, Vmax, and the rate of RuBP regeneration Jmax, thus reducing overall photosynthetic capacity. Nitrogen Storage and Remobilization: Rubisco can act as a temporary nitrogen storage protein, which is degraded to remobilize nitrogen to other growing parts of the plant, especially under conditions of nitrogen deficiency or senescence. Nitrogen Use Efficiency (NUE): The allocation of nitrogen to Rubisco is a key determinant of a plant's photosynthetic nitrogen use efficiency (PNUE). In high-nitrogen conditions, plants may accumulate a surplus of Rubisco, which may not be fully activated, leading to a lower PNUE. Optimizing the amount and activity of Rubisco relative to nitrogen availability is a target for improving crop NUE. Photorespiration and Nitrogen Metabolism: Nitrogen metabolism is also linked to the photorespiration pathway (which competes with carboxylation at the Rubisco active site), particularly in the reassimilation of ammonia released during the process. To increase RuBisCO regeneration, which refers to the process of forming the CO2 acceptor molecule Ribulose-1,5-bisphosphate (RuBP) during photosynthesis, the primary methods involve optimizing the levels and activity of Rubisco activase (Rca) and enhancing the performance of other Calvin-Benson-Bassham (CBB) cycle enzymes. Biochemical and Environmental Approaches: Optimize Rubisco Activase (Rca) activity: Rca is a crucial chaperone protein that removes inhibitory sugar phosphates, such as CA1P (2-carboxy-D-arabinitol 1-phosphate), from the Rubisco active site, thus maintaining its catalytic competence. •Ensure optimal light conditions: Rca is light-activated via the chloroplast's redox status. Adequate light intensity ensures Rca can effectively maintain Rubisco in its active, carbamylated state. •Maintain optimal temperature: Rca is highly temperature-sensitive and can become unstable at moderately high temperatures (e.g., above 35°C/95F° in many C3 plants), which decreases its ability to activate Rubisco. Maintaining temperatures within the optimal range for a specific plant species is important. •Optimize Mg2+ concentration: Mg2+ is a key cofactor for both Rubisco carbamylation and Rca activity. In the light, Mg2+ concentration in the chloroplast stroma increases, promoting activation. •Manage ATP/ADP ratio: Rca activity depends on ATP hydrolysis and is inhibited by ADP. Conditions that maintain a high ATP/ADP ratio in the chloroplast stroma favor Rca activity. Enhance Calvin-Benson-Bassham (CBB) cycle enzyme activity: The overall rate of RuBP regeneration can be limited by other enzymes in the cycle. •Increase SBPase activity: Sedoheptulose-1,7-bisphosphatase (SBPase) is a key regulatory enzyme in the regeneration pathway, and increasing its activity can enhance RuBP regeneration and overall photosynthesis. •Optimize other enzymes: Overexpression of other CBB cycle enzymes such as fructose-1,6-bisphosphate aldolase (FBA) and triose phosphate isomerase (TPI) can also help to balance the metabolic flux and improve RuBP regeneration capacity. Magnesium ions, Mg2+, are specifically required for Rubisco activation because the cation plays a critical structural and chemical role in forming the active site: A specific lysine residue in the active site must be carbamylated by a CO2 molecule to activate the enzyme. The resulting negatively charged carbamyl group then facilitates the binding of the positively charged Mg2+ion. While other divalent metal ions like Mn2+ can bind to Rubisco, they alter the enzyme's substrate specificity and lead to dramatically lower activity or a higher rate of the non-productive oxygenation reaction compared to Mg2+, making them biologically unfavorable in the context of efficient carbon fixation. The concentration of Mg2+ in the chloroplast stroma naturally increases in the light due to ion potential balancing during ATP synthesis, providing a physiological mechanism to ensure the enzyme is activated when photosynthesis is possible. At the center of the porphyrin ring, nestled within its nitrogen atoms, is a Magnesium ion (Mg2+). This magnesium ion is crucial for the function of chlorophyll, and without it, the pigment cannot effectively capture and transfer light energy. Mg acts as a cofactor: Mg2+ binds to Rubisco after an activator CO2 molecule, forming a catalytically competent complex (Enzyme-CO2-Mg2+). High light + CO2) increases demand: Under high light (60 DLI is a very high intensity, potentially saturating) and high CO2, the plant's capacity for photosynthesis is high, and thus the demand for activated Rubisco and the necessary Mg2+ cofactor increases. Mg deficiency becomes limiting: If Mg2+ is deficient under these conditions, the higher levels of Rubisco and Rubisco activase produced cannot be fully activated, leading to lower photosynthetic rates and potential photo-oxidative damage. Optimal range: Studies show that adequate Mg2+ application can enhance Rubisco activation and stabilize net photosynthetic rates under stress conditions, but the required concentration is specific to the experimental setup. Monitoring is key: The most effective approach in a controlled environment is to monitor the plant's physiological responses e.g., leaf Mg2+ concentration, photosynthetic rate, Rubisco activation state, and adjust the nutrient solution/fertilizer to maintain adequate levels, rather than supplementing a fixed "extra" amount. In practice, this means ensuring that Mg2+ is not a limiting factor in the plant's standard nutrient solution when pushing the limits with high light and CO2. Applying Mg2+ through foliar spray is beneficial to Rubisco regeneration, particularly in alleviating the negative effects of magnesium (Mg) deficiency and high-temperature stress (HTS). While Mg can be leached from soil, within the plant it is considered a mobile nutrient, particularly in the phloem. Foliar-applied Mg is quickly absorbed by the leaves and can be translocate to other plant parts, including new growth and sink organs. Foliar application of: NATURES VERY OWN MgSO4 @ 15.0g L-1 in a spray bottle. Foliar sprays are often recommended as a rapid rescue measure for existing deficiencies or as a supplement during critical growth stages, when demand for Mg is high. Application in the early morning or late evening can improve absorption and prevent leaf burn. The starting point [of creativity] is curiosity: pondering why the default exists in the first place. We’re driven to question defaults when we experience vuja de, the opposite of déjà vu. Déjà vu occurs when we encounter something new, but it feels as if we’ve seen it before. Vuja de is the reverse—we face something familiar, but we see it with a fresh perspective that enables us to gain new insights into old problems. Come walk in the enchanted forest.

Healthy looking lady, although she's having to deal with a fungus gnats pest she's growing super fast and "healthy" not as healthy as she should but healthy anyways. She's gonna make a huge change once I apply the nematode called steinernema feltiae to finally get rid of gnats, peace out everybody! 💚❤️💛

Very healthy going very well

Great gains this week. Blue dream is coming on strong. A couple of these ladies will be eary finishers. Id guess around 77 days. I never expect any auto to finish before 90 days. Although it does happen. The smell is undeniable. Blue dream is a very distinct terpene profile that cannot be missed! Used recharge on them this week and they early seamed to react well! I'm glad I made that purchase! Looking forward to finishing out this grow! Lollipopped them this week as well.

Vor 3 Tagen habe ich alles beschnitten, paar Sonnensegel entfernt und Triebe(lollipopping) , die meiner Meinung nach nichts tragen bzw wenig, sie Strecken sich weiterhin. Bisher bin ich ganz zufrieden mit allem 😊 ich werde nach und nach noch paar Triebe entfernen die sich über die Zeit als zu schwach entpuppen. Jetzt sieht man auch schon schöne Blüten Ansätze und alle Pflanzen sind weiblich kein Zwitter dabei...bis dahin liebe Grüße und danke fürs verfolgen 👌