The whole plant is yellowing

M

Markshomegrown

Well-Known Member
Blackketch said:
I will certainly not be an expert but in any case I have always grown with these temperatures obtaining an average of 100gr per plant and I think it is a good result. I'll tell you .. I only had problems with temperatures higher than 27 °. I am not worrying that much about the temperature as I think it is acceptable
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Lower temps always seem to stunt my growth and reduces crop size in flower.
The plants grow a lot faster when the temps around 30c, they need more water(5ltrs every 2 days per plant) and food, I use a high amount of sand and perlite because I want to push my plants hard and this causes the root mass to dry out fast.
 
bk78

bk78

Well-Known Member
Markshomegrown said:
Lower temps always seem to stunt my growth and reduces crop size in flower.
The plants grow a lot faster when the temps around 30c, they need more water(5ltrs every 2 days per plant) and food, I use a high amount of sand and perlite because I want to push my plants hard and this causes the root mass to dry out fast.
Click to expand...
5L every 2 days?

I go through about 30 gallons every 4 days
 
speedwell68

speedwell68

Well-Known Member
ComfortCreator said:
Your assumptions should be pushed back a little. Pull back and see things from the big picture.

Almost no creature or living thing grows identically to another.
Diversity is how nature perseveres, the old survival of the fittest stuff.
Variations in genetics occur all the time.

The asssumptions you made about growing cannabis may not apply.
Yes it is true that all cannabis follows a general pattern.
But how each plant grows can and will be largely random, even if they have many common traits.

Point is...for commercial facilities they either grow hundreds of plants hunting for keepers.
Or they pay a lot to buy them and clone them to create identical copies.

Very few genetic lines are uniform with little variation.
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I currently have 3 plants that are 6 weeks old. They are all Critical by RQS. I have grown this strain several times before. I have been using the same medium and nutes for over a year. I had a 3 pack of seeds, they were germinated together, potted up together, fed the same feed in the same medium, in the same tent, under the same lights and one of the 3 is showing phosphorus deficiency.

Over the last 3 weeks I have tried all sorts to fix it and nothing has worked. It just sits there being small and deficient. The only thing I can put it down to is that this one plant is a runt. At the end of the day we are dealing nature and from time to time nature produces a genetic fuck up.
 
twentyeight.threefive

twentyeight.threefive

Well-Known Member
Markshomegrown said:
I have seen your baby hands in your photos, guessing your about 22 years old from a family with money, you have to be right about everything.
My current crop has a short flower cycle, about 7-8 weeks, the buds are slightly smaller than other strains but the quality is high and I can pull 6 crops a year.
View attachment 5034642
30 days in flower 12/12

your plants have very little support, you have not pulled the shoots down to fill the room, your pots are really small, root mass must be like a brick come harvest, the shoots are very stretched.
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Why are you harvesting them early?
 
bk78

bk78

Well-Known Member
Markshomegrown said:
I have seen your baby hands in your photos, guessing your about 22 years old from a family with money, you have to be right about everything.
My current crop has a short flower cycle, about 7-8 weeks, the buds are slightly smaller than other strains but the quality is high and I can pull 6 crops a year.
View attachment 5034642
30 days in flower 12/12

your plants have very little support, you have not pulled the shoots down to fill the room, your pots are really small, root mass must be like a brick come harvest, the shoots are very stretched.
Click to expand...
twentyeight.threefive said:
Why are you harvesting them early?
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7 week strain bro. He’s got this.
 
Budzbuddha

Budzbuddha

Well-Known Member
Markshomegrown said:
Not with with low temps, you need it around 30c.
anybody else think 23c is good in flower is good?
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I guess my plants are wearing thermal underwear .

Generally, cannabis plants prefer temperatures in the 70-85 °F (20-30 °C) range during the day when lights are on. When grow lights are off (their “night”), cannabis plants are happy with slightly cooler temps.

Strain specific as many strains thrive in lower temps - just as they do in “ the wild “. Many here have outdoor runs in the cold … Im running NL and afghani cuts - they can pretty much grow in any condition as well as others. Besides as day goes on temps will stabilize during light cycle.

164941E1-41CB-4D5B-BB21-FA1A70D9A1F6.jpeg15D9BA1D-2514-4230-9263-10D75D3B721F.jpegBB0DE99A-C171-4B51-B958-56FA9A2D67BA.jpeg

Shocking right ?bongsmilie:mrgreen:
 
bk78

bk78

Well-Known Member
Markshomegrown said:
I have seen your baby hands in your photos, guessing your about 22 years old from a family with money, you have to be right about everything.
My current crop has a short flower cycle, about 7-8 weeks, the buds are slightly smaller than other strains but the quality is high and I can pull 6 crops a year.
View attachment 5034642
30 days in flower 12/12

your plants have very little support, you have not pulled the shoots down to fill the room, your pots are really small, root mass must be like a brick come harvest, the shoots are very stretched.
Click to expand...
I don’t even remember being 22 kiddo, as for my set up it’s pretty budget oriented for others I see on here.

I fucking bought my lights from alibaba, if my family had money I sure as fuck wouldn’t be running alibaba lights

scoot along now to your little larf layer


:lol:
 
M.O.

M.O.

Well-Known Member
hotrodharley said:
Bottom heating definitely works but you have to be cautious about medium drying.
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Agreed. Especially with fans under the canopy and cloth pots, drying is an issue. That cold floor really slowed me down though.
Also good to keep an eye on the controller for whatever heat. Had the controller fritz out and heat up to max. They definitely don’t like 110F underneath either.
 
D

drbudkilo

Member
Blackketch said:
Hello, a strange thing is happening to me in my grow room ... basically one of my 4 plants (same strain, same soil and same water) has become completely a very bright light green color, almost yellow, and I started to notice purple veins between the leaves. I just can't understand what it is due to since the others are pretty strong and healthy. I specify that the plant in question has always been the slowest and most precise also that it is my usual not to fertilize in the vegetative phase since I use the royal mix of plagron which has always covered me 6 weeks of vegetative calmly with really excellent results.
My setup:
Grow Box: 120cm × 120cm × 200cm
Air inlet and extractor
Airpot vase
Led light: Mars Hydro Tsw 2000
Soil: Plagron Royal Mix
PH: 6.5
Plant age: 30 Days (from seed)
Techniques: Topping
Watering frequency: Every 2 days 1.5lt per plant
Rh: 55/50% Temp: 23 °
Light distance: 38cm dimmed to 50%
I'm at work at the moment and can't take pictures but I'll post them later. I already know that it is definitely a nitrogen or magnesium deficiency but I don't understand how this is possible since the plants are all treated equally.
I have only recently used spinosad on the leaves
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pics? what is runoff EC? do you check ? 80 % of deficiency I see is from high EC in media causing lockup
 
Blackketch

Blackketch

Well-Known Member
Markshomegrown said:
Lower temps always seem to stunt my growth and reduces crop size in flower.
The plants grow a lot faster when the temps around 30c, they need more water(5ltrs every 2 days per plant) and food, I use a high amount of sand and perlite because I want to push my plants hard and this causes the root mass to dry out fast.
Click to expand...
I'm sorry but there are so many comments in this thread that I hadn't fully seen you answered me .. anyway I think in the end it's also about how everyone is used to cultivating! for example if I use mineral fertilizers with temperatures of 30 ° I risk that the water evaporates much faster and there is a much greater probability that salt will accumulate in the soil. Some time ago I read that plants in grow rooms where the temperature exceeds 28 ° have less capacity for photosynthesis and to ensure that you have a good harvest you have to push with Co2. If temperatures reach 28º then some vital substances will be lost in the resin, like essential oils and some terpenes. The trichome will become taller to defend the buds from the heat, but they’ll be much weaker and more likely to fall off therefore reducing resin production. I specify that I do not want to go against you in any way but I just wanted to expose what I have learned and compare myself with some friends who have the same passion as me. I'm talking about high temperatures because unfortunately I live in Sicily and here the last cycle you can do must necessarily end in May because otherwise the heat causes a lot of damage and after 28 ° I only had problems WITHOUT Co2
 
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