Cotelydons Turning Yellow

albertroid · May 18, 2020

Hello THC Farmers,

I germinated two Strawnana seeds in Fox Farm Ocean Forrest Soil on Day 1. They grew out of the soil (1 inch deep) on Day 5, and on Day 16 I noticed that the cotyledons have started turning light green or yellowish. I haven been giving my plants water evenly distributed to the pot (1/2 the pot volume size=111mL deionized water) every other day. The temperature is at around 28C, the humidity at 54% Relative Humidity, and the pH (measured on Day 5) is at pH6. I have never fed them plant food but I have this: _LINK TO PLANT FOOD_. Is it time to feed them, or what is the cause of them turning yellowish? I appreciate any feedback or advice. Thank you all and stay safe.

Day 16 Picture:
Angle 1:

Angle 2:

revfunk · May 18, 2020

Perfectly normal. They will always yellow and fall off eventually. You're babies look great.

Ganj on

albertroid · May 18, 2020

bubblefunk said:
Perfectly normal. They will always yellow and fall off eventually. You're babies look great.

Ganj on

Thank you for your response bubblefunk, you are very helpful.

revfunk · May 18, 2020

albertroid said:
Thank you for your response bubblefunk, you are very helpful.

Anytime!

mancorn · May 18, 2020

bubblefunk said:
Perfectly normal. They will always yellow and fall off eventually. You're babies look great.

Eventually, but normal for me is usually further along. This is at 5 weeks and cotyledons are still there (but spent). I'm think if they're yellowing after 2 weeks, you're over watering (especially if you're watering ever other day).

revfunk · May 18, 2020

mancorn said:
Eventually, but normal for me is usually further along. This is at 5 weeks and cotyledons are still there (but spent). I'm think if they're yellowing after 2 weeks, you're over watering (especially if you're watering ever other day).
View attachment 974621

Good point. Since the rest of the plant looks very healthy I wouldn't stress about it though.

Anthem · May 18, 2020

There are numerous people coming to the site with young plants in those fiber pots having problems. While some have had trouble with FFOF being too hot. I have never had that problem, but we have seen numerous people having trouble with those pot. My only suggestion would be to change the pot to something that will not retain water like those fiber pots.

revfunk · May 18, 2020

Anthem said:
There are numerous people coming to the site with young plants in those fiber pots having problems. While some have had trouble with FFOF being too hot. I have never had that problem, but we have seen numerous people having trouble with those pot. My only suggestion would be to change the pot to something that will not retain water like those fiber pots.

Yes! Those jiffy pots are a pain in the ass. I used them while waiting on my gear to arrive and while I had zero problems, I also knew what I was getting into.

They also won't disintegrate in the short life of a cannabis plant, causing problems later on as well. When you transplant, definitely break the pot away by hand.

SPARECHANGE · May 19, 2020

Anthem said:
There are numerous people coming to the site with young plants in those fiber pots having problems. While some have had trouble with FFOF being too hot. I have never had that problem, but we have seen numerous people having trouble with those pot. My only suggestion would be to change the pot to something that will not retain water like those fiber pots.

at least, drill extra holes

Jimster · May 19, 2020

Anthem said:
There are numerous people coming to the site with young plants in those fiber pots having problems. While some have had trouble with FFOF being too hot. I have never had that problem, but we have seen numerous people having trouble with those pot. My only suggestion would be to change the pot to something that will not retain water like those fiber pots.

One problem with the fiber pots is that they evaporate a lot of water, being porous. I think the possible issue might be the nutes concentrating along the inside of the pots when it is getting dried out... plastic buckets don't evaporate like that. I think it is probably either too much food or too much salts concentrated on the inside of the cloth. Lower nutes or more water would possibly help if that was the case, but IMO, nutes are way overused by most newer growers... plus the feeding requirements of plants change a lot when they start to flower and seem to become more sensitive to higher nute levels... again, in my opinion.

Anthem · May 19, 2020

Jimster said:
One problem with the fiber pots is that they evaporate a lot of water, being porous. I think the possible issue might be the nutes concentrating along the inside of the pots when it is getting dried out... plastic buckets don't evaporate like that. I think it is probably either too much food or too much salts concentrated on the inside of the cloth. Lower nutes or more water would possibly help if that was the case, but IMO, nutes are way overused by most newer growers... plus the feeding requirements of plants change a lot when they start to flower and seem to become more sensitive to higher nute levels... again, in my opinion.

Jimster, the plants are like 4" tall tops if he added nutrients the plants should be showing more nutrient burn. Those pots are such a problem, they hold so much water that the root zone getting any Oxygen is a real problem. About the only thing worse than those pots would be miracle grow in the pots. Again I say to ditch the paper pots and transplant into a plastic pot or a fabric pot.

Jimster · May 19, 2020

Anthem said:
Jimster, the plants are like 4" tall tops if he added nutrients the plants should be showing more nutrient burn. Those pots are such a problem, they hold so much water that the root zone getting any Oxygen is a real problem. About the only thing worse than those pots would be miracle grow in the pots. Again I say to ditch the paper pots and transplant into a plastic pot or a fabric pot.

I guess my mistake was from not knowing the difference between a fiber pot and a fabric one... I haven't used either. A buddy gave me a couple of plants in some sort of fabric-ish container, but when you watered it like I normally do, I got most of the water draining out of the sides instead of thru the medium. This is what I was considering the problem might be originating from, but it seems we are talking about two different products. I'm still using the same 6 gallon buckets that my uncle used to make wine with... the juice came in the buckets. He made the wine the last time in 1980, so the buckets have served their purpose well.

Cotelydons Turning Yellow

albertroid

revfunk

albertroid

revfunk

mancorn

revfunk

Anthem

revfunk

SPARECHANGE

Jimster

Anthem

Jimster

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