Great Googly Moogly!And oh yea, about them droughted buds...
NYC Diesel, Limelight (drought documented in March) now cured up
Those buds look awesome!
I'm drooling here . . . well done!
Droughting and its medicinal effects in cannabis
- Thread starter Krissi Carbone
- Start date
Those buds look awesome!
I'm drooling here . . . well done!
Maritimer
Well-Known Member
We have an accidental strain of Thai X Blueberry Skunk that I am excited about toying with. She has the longest pistols I think I ever seen. The foliar meja treatment will be backed down to 100 ppm solution. Should be a blast.
- Thread starter
- #1,164
I'm curious to look at the gonads on this plant of Maritimer's and check in with thr posts since I've been on last!
Currently in trim jail and when I'm out, I'll be reading up and catching up here!
Won't be gone long, don't worry just didn't want anyone thinking I disappeared again. Give me a day maybe 2, tops.
Currently in trim jail and when I'm out, I'll be reading up and catching up here!
Won't be gone long, don't worry just didn't want anyone thinking I disappeared again. Give me a day maybe 2, tops.
Looks kinda like cashmere or fur.We have an accidental strain of Thai X Blueberry Skunk that I am excited about toying with. She has the longest pistols I think I ever seen. The foliar meja treatment will be backed down to 100 ppm solution. Should be a blast.
Cashmere Cannabis™
Last one I grew like that was Red Sky. Loooong pistols like crazy and it's one we miss a lot! Sweet buds on her Maratimer!We have an accidental strain of Thai X Blueberry Skunk that I am excited about toying with. She has the longest pistols I think I ever seen. The foliar meja treatment will be backed down to 100 ppm solution. Should be a blast.
- Thread starter
- #1,167
Just saying hi to our droughting friends really quick and making sure everyone knows I have not abandoned this again. I'll be done with the trim tonight so expect me here tomorrow.
Until then, I'll share another documented droughted plant's bud, this time in Onyx my Sirius Black that went a 9 days droughting with her short and fat Indica heavy frame.
Droughting makes a difference!
Be back soon!
Until then, I'll share another documented droughted plant's bud, this time in Onyx my Sirius Black that went a 9 days droughting with her short and fat Indica heavy frame.
Droughting makes a difference!
Be back soon!
Beauty!Just saying hi to our droughting friends really quick and making sure everyone knows I have not abandoned this again. I'll be done with the trim tonight so expect me here tomorrow.
Until then, I'll share another documented droughted plant's bud, this time in Onyx my Sirius Black that went a 9 days droughting with her short and fat Indica heavy frame.
Droughting makes a difference!
Be back soon!
So, uh, hows it smoke?
Just finishing up my first attempt at draughting. I have a short flowering strain (7-8 weeks) so I started at the beginning of week 6.
Today is day 11 and my target leaf hasn't changed angle until today. Still hasn't dropped 50* but I expect it to in the next day or so.
So, I'll officially join the club. Now I'll have to see if I'll want to renew my membership.
Today is day 11 and my target leaf hasn't changed angle until today. Still hasn't dropped 50* but I expect it to in the next day or so.
So, I'll officially join the club. Now I'll have to see if I'll want to renew my membership.
scottreid1966
Well-Known Member
A photo may be sweet, Azi! Newbies like me need all the data we can get.Just finishing up my first attempt at draughting. I have a short flowering strain (7-8 weeks) so I started at the beginning of week 6.
Today is day 11 and my target leaf hasn't changed angle until today. Still hasn't dropped 50* but I expect it to in the next day or so.
So, I'll officially join the club. Now I'll have to see if I'll want to renew my membership.
- Thread starter
- #1,171
Per our Doctor:
Dropping by with some info, some news, some spreading of the word. Sorry for my lack of responses, been catching up around the home and in my tents.
Found some nice reads for you all. I'll have some droughters for you in about 60 days...
Plant care during droughting: AMENDMENTS
Cannabinoid concentration can be genetically influenced through breeding and phenotype selection. However, horticultural management methods such as fertilization, the choice of substrate, air temperature, lighting intensity, lighting quality, and photoperiod also can affect cannabinoid production.
Controlled drought, however, also can stimulate oil production. When exposed to intermittent watering and sunlight, herbs and spices cultivated in semiarid locations tend to be more aromatic and have higher essential oil concentrations. In one study of summer savory, a plant that was drought-stressed during the flowering stage had a 31% higher essential oil concentration than its watered counterpart.
Though drought-stressed plants may have a higher concentration of essential oils, the total yield sometimes is lower because conditions reduce growth and the amount of harvestable plant material. Careful manipulation of the level and the timing of the drought stress can help to minimize the loss of dry weight.
Tracking Effects of Controlled Drought
Fourteen-day-old cuttings taken from the same stock plant were transplanted into pots filled with a custom-blended organic growing substrate, watered by hand, and fertilized with a liquid organic fertilizer.
At fifteen days after transplantation, eight plants of similar height and canopy size were transplanted into larger pots and transferred to a walk-in growth chamber for flowering. This was considered the first day of the flowering stage. The plants were hand-fertilized and watered for another 10 days whenever the substrate moisture content reached 20%, and then cared for with various nutrient and element amendments until they were 39 days old.
On day 39, four plants were assigned to the drought group, and four plants were assigned to the control group. Water and fertilization continued to be provided for the control plants, but was withheld from the drought group.
Throughout the drying period, drought stress indicators such as volumetric water content, the moisture content present in the substrate, and wilting (measured by the angle of leaves) were recorded until the day after the drought group had received water and fertilizer.
On day 39, four plants were assigned to the drought group, and four plants were assigned to the control group. Water and fertilization continued to be provided for the control plants, but was withheld from the drought group.
Throughout the drying period, drought stress indicators such as volumetric water content, the moisture content present in the substrate, and wilting (measured by the angle of leaves) were recorded until the day after the drought group had received water and fertilizer.
Drought Increases Cannabinoid Concentration
The eight cannabis plants were harvested 54 days after flowering and hung to dry at 18 degrees Celsius, or 64 degrees Fahrenheit, for 12 days before being analyzed by an independent laboratory.
The analysis included a calculation of the concentration of THC, cannabidiol (CBD), cannabinol (CBN), cannabichromene (CBC), and cannabigerol (CBG), as well as acidic forms THCA), CBDA, and CBGA.
The major cannabinoids THC and CBD were detected in both the control and drought plants. Only one plant in the drought group had detectable concentrations of CBG and CBN, so the authors could not make comparisons with the control group. The drought treatment provoked a 12% increase in THCA concentration, and a 13% increase in CBDA concentration, but did not affect the concentrations of the other cannabinoids.
Drought also significantly affected the yield of certain cannabinoids. Yield was calculated as grams of cannabinoid from flowers per unit of growing area, with the following yield results in drought specimens compared with the control group:
The authors of the study also pointed out that there were no signs of nutrient deprivation or differences in plant appearance between the control and drought groups for nine days. From nine days until harvest, the drought plants showed the telltale paleness of veinal chlorosis, which arises from insufficient chlorophyll production in leaves.
BRANCHING OUT THE DROUGHT:
Pace noted that some cannabis farms are practicing controlled drought through dry farming. Dry farming is a technique of sustainably cultivating cannabis without irrigation by employing moisture-enhancing and water-conserving practices in arid regions. In Humboldt County, California, Sunboldt Grown dry-farms cannabis and produces terpene and cannabinoid-rich flowers. Nonetheless, Pace warned that the effects of controlled deprivation, such as controlled drought conditions, may not always result in predictable outcomes.
“Another research study into the effects of high and low levels of fertilizer on cannabinoid content provides data that we can draw inferences from,” Pace explained, citing a study by the University of Guelph in Ontario, Canada.
Dropping by with some info, some news, some spreading of the word. Sorry for my lack of responses, been catching up around the home and in my tents.
Found some nice reads for you all. I'll have some droughters for you in about 60 days...
Plant care during droughting: AMENDMENTS
POLYMERS
Polymers are highly water-absorbent plastics that can keep plants alive and hydrated when blended with the substrate. Polymers effectively create a massive reservoir of water or nutrient solution. They sit, ready and waiting, for the roots to tap into them during the worst drought conditions.• Food-safe polymers, or polyacrylamides, are the best choice for photoperiod strains.
• Polyacrylates can hold even more than polyacrylamides but break down into ammonia salts and nitrogen after about 16 weeks. Because most autos have a total harvest time of less than 12 weeks, they can benefit from these polymers without their flavour of development being affected.
NUTRIENTS AND SUPPLEMENTS
In drought conditions, it's fair to say that cannabis plants will be under heat stress. They handle these situations a lot better when they are stronger and more robust, which is where nutrients and supplements come in.• Humic acid supplements protect the roots from water stress.
• Silica supplements help strengthen cell walls and stems.
• Kelp extract helps with heat stress and can boost yield and growth; kelp seaweed augments the effects of humic acid supplements.
INTERNET COMMUNICATO:
"CAPLAN'S" study
...published in the May 2019 issue of HortScience, a publication of the American Society for Horticultural Science, investigated the effects of targeted underwatering, or controlled drought stress, on cannabinoid content and dry weight. The researchers hypothesized that controlled drought stress might allow growers to enhance the quality of their cannabis crops.
READING NOTES ON DROUGHT INFLUENCE:
Factors that Influence Cannabinoid Concentration
Cannabinoids are the oils concentrated in the glandular trichomes of female flowers that give cannabis its value as a medicinal and recreational product. Cannabinoids generally accumulate during the flowering stage of growth, but the timing of peak cannabinoid concentration tends to vary by chemotype and cultivar.Cannabinoid concentration can be genetically influenced through breeding and phenotype selection. However, horticultural management methods such as fertilization, the choice of substrate, air temperature, lighting intensity, lighting quality, and photoperiod also can affect cannabinoid production.
Controlled drought, however, also can stimulate oil production. When exposed to intermittent watering and sunlight, herbs and spices cultivated in semiarid locations tend to be more aromatic and have higher essential oil concentrations. In one study of summer savory, a plant that was drought-stressed during the flowering stage had a 31% higher essential oil concentration than its watered counterpart.
Though drought-stressed plants may have a higher concentration of essential oils, the total yield sometimes is lower because conditions reduce growth and the amount of harvestable plant material. Careful manipulation of the level and the timing of the drought stress can help to minimize the loss of dry weight.
Tracking Effects of Controlled Drought
Fourteen-day-old cuttings taken from the same stock plant were transplanted into pots filled with a custom-blended organic growing substrate, watered by hand, and fertilized with a liquid organic fertilizer.
At fifteen days after transplantation, eight plants of similar height and canopy size were transplanted into larger pots and transferred to a walk-in growth chamber for flowering. This was considered the first day of the flowering stage. The plants were hand-fertilized and watered for another 10 days whenever the substrate moisture content reached 20%, and then cared for with various nutrient and element amendments until they were 39 days old.
On day 39, four plants were assigned to the drought group, and four plants were assigned to the control group. Water and fertilization continued to be provided for the control plants, but was withheld from the drought group.
Throughout the drying period, drought stress indicators such as volumetric water content, the moisture content present in the substrate, and wilting (measured by the angle of leaves) were recorded until the day after the drought group had received water and fertilizer.
On day 39, four plants were assigned to the drought group, and four plants were assigned to the control group. Water and fertilization continued to be provided for the control plants, but was withheld from the drought group.
Throughout the drying period, drought stress indicators such as volumetric water content, the moisture content present in the substrate, and wilting (measured by the angle of leaves) were recorded until the day after the drought group had received water and fertilizer.
Drought Increases Cannabinoid Concentration
The eight cannabis plants were harvested 54 days after flowering and hung to dry at 18 degrees Celsius, or 64 degrees Fahrenheit, for 12 days before being analyzed by an independent laboratory.
The analysis included a calculation of the concentration of THC, cannabidiol (CBD), cannabinol (CBN), cannabichromene (CBC), and cannabigerol (CBG), as well as acidic forms THCA), CBDA, and CBGA.
The major cannabinoids THC and CBD were detected in both the control and drought plants. Only one plant in the drought group had detectable concentrations of CBG and CBN, so the authors could not make comparisons with the control group. The drought treatment provoked a 12% increase in THCA concentration, and a 13% increase in CBDA concentration, but did not affect the concentrations of the other cannabinoids.
Drought also significantly affected the yield of certain cannabinoids. Yield was calculated as grams of cannabinoid from flowers per unit of growing area, with the following yield results in drought specimens compared with the control group:
- THC: 50% higher;
- THCA: 43% higher;
- CBD: 67% higher;
- CBDA: 47% higher.
The authors of the study also pointed out that there were no signs of nutrient deprivation or differences in plant appearance between the control and drought groups for nine days. From nine days until harvest, the drought plants showed the telltale paleness of veinal chlorosis, which arises from insufficient chlorophyll production in leaves.
BRANCHING OUT THE DROUGHT:
Pace noted that some cannabis farms are practicing controlled drought through dry farming. Dry farming is a technique of sustainably cultivating cannabis without irrigation by employing moisture-enhancing and water-conserving practices in arid regions. In Humboldt County, California, Sunboldt Grown dry-farms cannabis and produces terpene and cannabinoid-rich flowers. Nonetheless, Pace warned that the effects of controlled deprivation, such as controlled drought conditions, may not always result in predictable outcomes.
“Another research study into the effects of high and low levels of fertilizer on cannabinoid content provides data that we can draw inferences from,” Pace explained, citing a study by the University of Guelph in Ontario, Canada.
DaradeGrows
Well-Known Member
I have a sour diesel in flower about week 2, or 3, how would I drought, like how long should I go without watering my plants? I've noticed the pots can go really light and the plant, really doesn't wilt or respond even after 3 days of no water. (I didn't water for 3 days before harvesting Auto Amnesia Haze!
- Thread starter
- #1,173
Hi D
So first of all, she is a photo or an auto?
Secondly, you're gonna wanna wait some weeks here if you are that early. Namely because the cannabinoids are in crazy production only in and around the time in which Caplan suggests we drought, which is give or take around the 7th week of flower. You can use LWA, leaf wilt angles, to use the procedure as it was intended by Dr. C.
It can last for a period of up to 11 days.
Pulling her out of the drought before that time does not necessarily negatively affect the effects droughting has had on your plant. Some finish faster than others. Some do more than others with this technique.
I personally ran an NYC Diesel, mother Sour Diesel, she was rocking life in drought. I would venture to think since the effects of droughting in my opinion and also coming up elsewhere in studies, is strain specific as far as both tolerance and reward are concerned, that your SD would benefit greatly from this technique and would also be quite resilient. As you said, my NYC D did not show signs of limpness in her leaves either, she remained taut throughout. I did notice C-Mag deficiencies coming out on her leaves however-just something to note.
- Thread starter
- #1,174
Ok, that's enough of that! I got the leaf angle close enough to the 50* to call it good and gave her a half watering. I'm getting some amber on the top buds so I'll let her take in some hydration and probably chop in the next few days.Just finishing up my first attempt at draughting. I have a short flowering strain (7-8 weeks) so I started at the beginning of week 6.
Today is day 11 and my target leaf hasn't changed angle until today. Still hasn't dropped 50* but I expect it to in the next day or so.
So, I'll officially join the club. Now I'll have to see if I'll want to renew my membership.
I remember looking at @Stunger 's plants at all the limp hanging leaves, but was still a little surprised at how quickly it came on. One day they were fine, the next day started to droop and then, wham! Will be interesting to see if any of them recover.
I'd like to make it to Saturday for my convenience, but will have to see. I like 'em a bit amber anyway so I'll probably find a way to justify waiting. Lol.
scottreid1966
Well-Known Member
Beautiful buds on them, K! Thanks for your previous post on droughting. You work very hard on this thread and I am sure I speak for all...
DaradeGrows
Well-Known Member
I will look into the exact weekage, I'm doing a Sour Diesel Grow (and others) right now, on my second grow journal! She's the one I'd like to drought, as this sounds extremely interesting! Thank you for the information @Krissi1982
scottreid1966
Well-Known Member
If only our ladies didn't work 5 days a week.Ok, that's enough of that! I got the leaf angle close enough to the 50* to call it good and gave her a half watering. I'm getting some amber on the top buds so I'll let her take in some hydration and probably chop in the next few days.
I remember looking at @Stunger 's plants at all the limp hanging leaves, but was still a little surprised at how quickly it came on. One day they were fine, the next day started to droop and then, wham! Will be interesting to see if any of them recover.
I'd like to make it to Saturday for my convenience, but will have to see. I like 'em a bit amber anyway so I'll probably find a way to justify waiting. Lol.
Looking forward to seeeing them (hint, hint)
Pulled a plant out
Left it to drought
Then did nowt
Now it's in a jar and marvellous
Left it to drought
Then did nowt
Now it's in a jar and marvellous
Pinch of sodium chloride in the nutrient solution? Food crop farmers who grow via hydroponic methods are learning how to use sodium/salt to get the same response that soil-grown plants produce when subjected to water restriction. Helps produce flavorful tomatoes. Which is good, if you like the taste of the things. (Turns out the name "Beefsteak" is undeserved
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