Seedlings with discoloration less than 2 weeks old

[GregTheAlien]

These 12 day old Anesia autos have the same exact discoloration that was noticeable immediately, on very first real leaves. They are in a mix of Happy Frog and Ocean Forest soil with phs of 6.7 and 6.5. Watered twice and only additive was Stash Blend. Any ideas?

 

[Grownsince95]

Interesting case! And not an easy one to diagnose until we have more info. My first reaction was TMV or something genetic but let's rule out the more common stuff first.

Are you giving the pots a good soaking edge to edge when you water or just in a ring around the base of the plant? How frequently?

Do you measure the pH/EC of your tap water?

What are the temps/humidity?

 

[GregTheAlien]

First watering was tap water that had been sitting out for a day or two, PH is 7.2 and 210 PPM700, a small amount just around the plant. The discolorations were there immediately. Below is a pic of Day 7. It was so immediate and the same across plants, my first thought was genetics.

Temp is 80-85 F , humidity 65%

 

[HerbalEdu]

such discoloration are from genetics.

 

[Grownsince95]

Yeah she's a strange bird huh! Give that pot a good soak around the edges and let 'er rip!

 

[GregTheAlien]

Sounds good, thanks for the help!

 

[RGWD0202]

Sounds good, thanks for the help!

Your PH is highish, try getting it closer to 6.5-6.9. In that soil combo you shouldn’t be having any deficiencies. I’d start there.

 

[Gmix]

the soil should be buffering the ph unless it’s getting fed synthetic & I’d imagine it’s not been fed yet

My own water is 7.4 and I don’t ph it because I am not using synthetic & grow organic

Your PH is highish, try getting it closer to 6.5-6.9. In that soil combo you shouldn’t be having any deficiencies. I’d start there.

 

[RGWD0202]

the soil should be buffering the ph unless it’s getting fed synthetic & I’d imagine it’s not been fed yet

My own water is 7.4 and I don’t ph it because I am not using synthetic & grow organic

Depends on the ppm of the alkalinity, the higher the ppm the longer it takes to buffer the ph. Mine is 7.5 with 175 ppm alkalinity which is very high. my organic soil can’t buffer it quick enough and causes lockout if I don’t adjust it before watering.

 

[GregTheAlien]

I do ph down my water. These plants have only been watered twice, very small amount.

 

[Gmix]

Depends on the ppm of the alkalinity, the higher the ppm the longer it takes to buffer the ph. Mine is 7.5 with 175 ppm alkalinity which is very high. my organic soil can’t buffer it quick enough and causes lockout if I don’t adjust it before watering.

Interesting, thanks for the information
So your water has a high ec I’m I following that right? how do you measure the alkalinity ppm other than just read the ph itself ; with a tds/ppm meter ?

I’m all ears as this is kinda new information for me & I will eat it up