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Views expressed are my own. All opinions are my own. The opinions expressed here belong solely to me and do not reflect the views of Growdiaries or Grandcru Genetics. The cannabis strain Grape Guava can be a purple strain, depending on its specific phenotype and genetic makeup. While not all phenotypes of Grape Guava are purple, some variations, such as the Zatix Grape Guava, are noted for their striking purple appearance due to the genetic expression of anthocyanin pigments. Grand Cru Genetics is a cannabis seed bank that emerged in 2018 from a group of breeders in Madrid to provide a satisfactory experience to all cannabis users. "If we do things, we do them well. Due to our experience in the sector and our taste for excellence, we know high quality and we seek it in everything we propose and do." "We have a “cultivate without giving up” philosophy that we apply to everything we do. We do not give up, we are friends of change, and we adapt as necessary in a still restricted sector." "We speak relaxed because we know how to relax. We are not intense or preachy; we accept everyone as they are, and we understand that farming is not for everyone. But for those who do, we are here to accompany you. We like to do it and tell it. We are experts in the field because we are the first to do it. We speak from experience and connect with others because we share the passion for cultivation." "Cannabis has the ability to show us a world of possibilities. When you cultivate and live its growth process, you enjoy a path full of emotions and not just the final destination. At Grand Cru we find beauty in small things. We are attentive, observant, detail-oriented and aware of everyday things, and we savor them without rushing." In a garden of green, Grape Guava gleams, With its fruity aroma, enchanting dreams. Clusters of grapes, guava's sweetness ignite, A strain so divine, in purple and white. Euphoria whispers, a lush fruity haze, Grape Guava's embrace, a tranquil daze. Off and away.@1400ppm. The increased CO2 allows plants to thrive at higher temperatures, which in turn necessitates higher humidity to maintain the ideal VPD for healthy growth and transpiration. 80F -5F = 75F LST with 70% RH = 0.72 kPa. Higher temperatures and humidity promote rapid growth, nutrient uptake, and photosynthesis while maintaining a lower stress level. Temperature influences the rate of enzymatic reactions involved in aerobic respiration. Enzymes, such as those involved in glycolysis, the Krebs cycle, and the electron transport chain, work most efficiently at an optimal temperature range. In low temperatures, enzymatic activity will slow down, thus reducing the rate of aerobic respiration. In high temperatures, enzymes can become denatured, thus impairing their function and stopping the process of aerobic respiration. Glucose is the primary fuel for aerobic respiration. The rate of aerobic respiration increases with the availability of glucose, as it is the starting point for glycolysis. If glucose levels are low, cells may rely on alternative energy sources such as fatty acids or amino acids , but these processes may yield less ATP or be less efficient. To determine this effect, carbon dioxide volume was measured (as carbon dioxide is an output of aerobic respiration) 18/6 with the 6 being IR. The near infrared (IR-a) borders around 700nm up to 1400nm @ photon par flux density of 1.8 instead of darkness, keeping temps overnight a neat 77F-80F. I think of my tent as a lung. What goes in must come out. When the rate of air going out exceeds the amount of air coming in, it creates a negative pressure. Tent concaves (bends in). If set up correctly, the RH will begin to drop slowly to the desired level I set, and the extraction turns off when it reaches the desired RH. The plant, as it performs cellular respiration, will always release more water into the air; therefore, the RH% of the tent overnight will increase, as long as oxidative phosphorylation is occurring. As soon as the RH% creeps back up to 55%, the extraction turns back on, over and over. This creates a strong pressure differential, which will work wonders with mass flow. Replicating high and low-pressure fronts in nature. Critical for oxygen diffusion at the critical time of peak cellular respiratory function.. Moisture will not transfer from a saturated atmosphere to another if that air is already at or above its saturation point, meaning the air can't hold any more water vapor. Once I understood that water is produced as a by product during cellular respiration, specifically at the very end of the electron transport chain (ETC) where electrons are finally transferred to molecular oxygen, the higher the RH of the air, the more resistance there is for more moisture to be added to that environment, and effects the ease with which it does so. But none of that water comes from the pot; it's pulled from the air. If you run high daytime RH, your medium/pot is 100% reliant on transpirational root pull to move water. ZERO evaporation happens across the atmosphere if the tent air has high RH%, the medium cannot release its water through evaporation. Once a canopy develops, light no longer slowly wicks and evaporates from the topsoil. The Soil-Plant-Atmosphere Continuum (SPAC) describes the continuous pathway and process of water movement, driven by a gradient in water potential, from the soil, through the plant's roots, stem, and leaves, and finally evaporating into the atmosphere through transpiration. There is evaporation, there is transpiration, and then there is evapotranspiration; Evapotranspiration (ET) is the combined total of two processes: evaporation (water lost directly from soil and surface water into the atmosphere) and transpiration (water released from plants to the atmosphere through their leaves). Evapotranspiration represents the total amount of water that moves from the medium into the air. There is no such thing as a medium with too much water, only a medium that retains too much for too long. The water must always flow efficiently from one atmosphere(Medium) to another(Air) in a timely manner. Moisture is a critical factor for bacterial growth and decay. Dictating how long it's allowed to sit in any one location for any given period is a key preferred control. To ensure a net reduction in a bacterial population, the rate of removal (ET) must exceed the rate of bacterial growth (decay rate), which is often modeled as a growth rate for the specific bacterium under the given conditions. By optimizing daytime VPD, we also optimize conditions for bacterial growth to explode exponentially above 77°F.. If water is allowed to sit in a medium without an escape within a timeframe, nothing good will happen. IF High RH is maintained overnight as well as during the day, placing 100% of water movement at the behest of daytime transpiration, roots can only pull where they can reach, and if soil is compressed above a certain point, moisture will become trapped in a medium with no way of moving day or night. This will begin the countdown for decay to take hold. When water stagnates in a medium, it loses oxygen, creating anaerobic conditions that foster the growth of harmful microorganisms like bacteria and fungi, which can produce toxins and disease vectors. Thigmomorphogenesis, the process by which plants respond to mechanical stimuli like touch by altering their growth and development, results in significant morphological changes to improve survival against mechanical perturbations. This complex response involves sensing touch and initiating physiological and genetic responses, leading to changes in form and structure over days or weeks. The process is triggered by physical forces such as wind, rain, or touch. Plants adapt to these stimuli by changing their shape and structure, which may include slower growth, thickened stems, or altered leaf development. Plants possess sophisticated mechanisms to detect even subtle mechanical stimuli and initiate responses. A variety of molecules, including calcium ions, jasmonates, ethylene, and nitric oxide, are involved in signaling these mechanical inputs. Touch can induce the expression of genes that encode proteins for calcium sensing, cell wall modification, and defense mechanisms. A plant exposed to constant wind may become shorter and sturdier. A plant that is touched frequently might grow more slowly to conserve energy and develop thicker cell walls. These changes increase a plant's resilience and ability to survive in harsh environments. Let's get Thiggy with it.

Week 10 for Wockesha she is finally at her end. All phenos look beautiful with different tones of purple through out the bud. All the Pheno had dense buds. Some phenos had better frost factor and some had better weight factor. Will do a whole plant hang dry for 2-3 weeks and then to a jar cure!

Day 100 - All ladies looking good at this point in the grow. Noemi's pistil hairs have mostly all curled up and turned amber in color. Also her trichomes are starting to appear amber in color. Will flush her pot with about 5 gallons of pH'd water soon. Natalia's pistils are about half curled up/amber and half white. Her buds still appear to be packing on trichomes and weight.

Transplanted and separated into a 4x8 and 5x5 started to get deficiencies I think either cal or mag maybe even a little of both I flushed the soil in case ph was off in the soil then a couple had nitrogen deficiency so I gave them a tea last night will see how they look tonight when I’m off work once they are healthy I’ll flip to flower

Week 6

It’s a nice grow so far in terms of expectations reality on the seed breeders. Great stuff again. I had a real germination nightmare this time around though - lots of strains failing at seedling so the numbers and strains became more 😂. So the tents are mixed up again to auto on one side and photoperiod on the other. In this tent as well as Afghan and a red gorilla - there is sweet zensation , banana krumble and red hot cookies and a peyote skittlez. Water in using ro solely through the grow. There has been one issue. I tried a “pro” substrate from biocanna this time and I have those little fleas. Really annoying and my aphids are late so kind of annoying - takes the pleasure off a bit. Any good organic solutions let me know please on comments

PH fluctuation :( I think the roots may rot. 😰 Should I harvest now?

wondering when to top them

the race continues. at the moment both are still on a par. a good 5 cm in growth. there is currently a lot of sunshine and really good temperatures. apart from that, not much has happened yet.

All steady, keeping up the air flow to prevent buds getting too wet.

April 28 - May 5 This week the nutrients have been completely phased out and they are now just sipping plain TO water ph balanced to 5.8 still. As they start entering into the flushing zone with harvest day quickly approaching. Daily tricome inspections become the focal point In these final days and or weeks. I

Plant is finishing up. The majority of the plant was taken down on day 84. A few buds were left on the plant so that the pollination of a few buds could let the seed develop

I was pleased with the overall outcome of this grow. These weren't huge plants but I didn't expect them to be, I was pleased with the look, flavor and overall presentation. I feel like I have a lot of learn about the best techniques on curing and storage but I continue to develop strategies.

Start week

Start of week 6!! One more week until flip All pits have been brought back up to ph range in the 6s

Hi all. Here we are with a full 7 days behind us in flower. The decision to flip was a necessity so i am hoping to still get a hint of the terps and potentcy of the small ladies. Sweet Afghani is not looking too bad fornher size now , she has been stretching and trying to get her size to catch up. I dont expect a great yield from her at all. Red Hot cookie is still really struggling. She is trying but i dont think she will bring much to the game now. Her colour is an indicater of her root damage i feel. This issue with the NFT and root rot has given rise to another opportunity to try the new sp3000/out fully amd with a focus on the big soil grown Amnesia haze. Amnesia haze has flown during the stretch so far and still has a few days left to go with it. I have been training her flat amd now am close to letting her go vertical. She is approx 3ft across now with growing tips coveringnjer while frame. She has sent a few decent sized bramches to the top but these have been retrained again. Her stems are solid with a near perfect quad guiding their frame. She is in 60L of living organic soil and sips a good 8L per watering. I amended with the ecothrive stuff and also added another layer of manure mulch today as they are going to need a boost to finish the stretch. She is smelling nice and fruity now with a slight tacky feel to her stems too. She possibly has at least 50 tops that are in good light. By using the sp3000 amd sp250 in combination this way i am hoping to keep her well spread with plenty of high par for all the bud stacks i hope to see. I am impressed with this strain and will be growing it again sometime. The living soil is also proving a winner yet again for me. Until next week. Be safe and well.

Week 10 (31-3 to 6-4) 31-3 Temps: 19.4 to 23.7 degrees Humidity: 61% to 69% The leaves are praying. Light set from 50% to 60% strength. 1-4 Temps: 18.4 to 23.1 degrees Humidity: 56% to 75% Watering: Both 1000 ml. EC: 1.3 2-4 Temps: 19.1 to 23.2 degrees Humidity: 58% to 70% Watering: Both 1000 ml. EC: 0.4 3-4 Temps: 19.6 to 23.8 degrees Humidity: 56% to 70% 4-4 Temps: 19 to 23.4 degrees Humidity: 54% to 62% Watering: Both 1000 ml. EC: 1.3 5-4 Temps: 18.2 to 23 degrees Humidity: 52% to 62% 6-4 Temps: 18.7 to 23.1 degrees Humidity: 49% to 63% Watering: Both 1000 ml. EC: 0.4 Around 10 days after switching to 12/12 i see that the bud development has started, so i count next week as week 1 flower.

Well boys and girls its time. Krishna got the chop at 58 days, and I just took down the Orange Blossom Fizz at 62 days. Krishna trimming has started and I'll ad some pics of those awesome buds, the Blossom is a lot and pretty wet still so that might need more days of hanging. Great looking plants, probably not too much weight off the Krishna but its soo frosty. It smells like homeless armpits and is almost too ripe to inhale deeply... The blossom doesn't coat the fan leaves in trichs like the kush but it makes great nugs with almost all calyxes instead of leafy material. Smells like mangos and some hint of spice, like an orange peel with cinnamon. They got powdered koolbloom for 4 days and flushed for 3 more before setting them outside the tent, in the dark, for a day before cutting and hanging. its like 59f outside my tents so it really helps the purps come out at the last second for strains that do it. once its jarred up an weighed i'll post back. probably 2.5 off the KK and could be a good amount off that big orange blossom plant.