Yellowing on New Leaves only on Seedlings

cranker · May 15, 2011

I had a nute burn early on this one as you can see on one of the larger leaves and swapped out the water to straight ph water and the 2nd set grew in very healthy. The third set coming in now just came out yellow, and I can't find a reason.
Stats:
Soil : topsoil w/out nutes, perilite, manure/composted, blood and bone meal in composition 5:3:1:.1:.1. Top half inch is jiffy seed starter ph 7 which is mostly peat moss with a little perilite and lime. ph of soil is 6.2.

Watering: once every 2 days with rainwater ph at 6.5.

Edit: Strain is G13 poison dwarf

sparkafire · May 15, 2011

OK Dont panic!! It shows signs of being a little hot but becasue the other leaves do not show burn you are ok. I know mine when they grow fast they are yellowish like that as well but green up. You should see changes within a day or 2 with them greening up. You are not giving nutes correct? Do you have something to foliar spray?

cranker · May 15, 2011

yeah I have them on 18/6 and I'm spraying them right before lights out to keep from burn. The heat in the room is around 77 most of the time, and has a fan on a seperate timer than the night timer. I've just never had them pop out yellow. The light config I usually use I'm not using because attitude send me some crushed seeds in one set (broken glass tube too) inside my 420 shirt, but I had another order from herbies come in 3 days later that are sprouted and doing wonderful, so I've been rotating the lights a bit, maybe I have that one too close I have a fairly large 5500k cfl about 3 inches above it. Thanks, I feel better

+rep

cranker · May 16, 2011

This is 40 hours later, they haven't greened up but they haven't yellowed farther either. I have the CFL's 6 inches back now.

d6520 · May 16, 2011

what are ur temps???

cranker · May 16, 2011

75-77 during light, 72-73 during dark. All the lighting in that grow corner is cfl and the humidity is ~35%. I have a 2nd timer on 15 minute shifts 7 times a day with a fan to strengthen the stalks. It's the only plant in there that looks like that though, all the rest are a nice deep healthy green.

cranker · May 16, 2011

Also want to add that this strain (pheno maybe) has been very bad. Out of 10 seeds only 5 cracked, only 4 germed, and 2 died in the first 3 days. The 2 remaining one is extremely stunted, probably going to cull it, and the other one is this one. It's almost at 3 weeks from germ. I have 6 other plants in the room in perfect health, nice green leaves, thick stalks, growing quickly. This is also the only non-femmed and I think I might just dump the whole group. I tried to contact G13 and got no response, and attitude's response is always the same.

sparkafire · May 17, 2011

Hmmmm thinking......

cranker · May 17, 2011

Yeah I'm completely stumped. It looks perfectly healthy apart from being yellow, if you were color blind you'd think it was in perfect condition, and the yellow is uniform. I think what strikes me most is the leaves aren't yellowing, they are growing in yellow. I've noticed that the strain wasn't carried by attitude for very long and has been out of stock since I bought it, maybe it's just not stabalized.

sparkafire · May 17, 2011

Naw its screaming for N, now do you have nutes? if so what kind? SOrry I forgot about you last night

cranker · May 17, 2011

I have some blood meal I could throw in, I sprayed it with superthrive today. I have some 8 6 4 organic drops that I usually start around week 4. I'll throw some of that in see what happens. Just was worried because it nute burned early and I transplanted it and I guess I went from one end of the spectrum to the other. When I transplated it after the nute burn and put it in the seed starter I guess the roots didn't have time yet to go deeper to get to the N in the soil.

sparkafire · May 17, 2011

Stop! Superthrive will do nothing spraying it. Do not add any bloodmeal Go water using your nutes but according to the directions. use 1/8 teaspoon per quart of your nute and spray that.

cranker · May 18, 2011

my water ph is high, I've had success in the past with the MG acid loving plant solution (high in N, reduces ph) so I'll start up a half dose see how it goes.

sparkafire · May 18, 2011

Let us know how it turns out.

Oldreefer · May 18, 2011

I suggest overwatering has been your primary issue....seedlings should never need water every 2 days....and certainly no nutes til 2-3 weeks old and then if healthy which yours aren't....hope ya didn't stunt'em so perhaps they'll heal....but they do need to dry out between waterings....

cranker · May 18, 2011

I looked up the order date, that plant it almost a month from germ. It's definately stunted, and it has a sibling plant that's the same way. I'm thinking the entire group was bunk, but it was the first AF's I'd tried. I have a set of NL AF's from Nirvana that have already outgrown them and they are only 10 days from germ. I think I'm just gonna toss the batch. I've been waiting til the soil was completely dry to water them, I just sprayed them with nutes to see if it would help. PLant should never be sprouting it's 5th set of leaves at an inch and a half. Maybe I'll just let it flower as a mini but at this point I don't know if I'll be able to sex the damn thing.

sparkafire · May 18, 2011

If you can hold off and see if we can get it to turn around for you. I kind of want to see if what we started works. Keep up the foliar and feeding and it will turn around for you.

Kingrow1 · May 18, 2011

Hey sparky, is that right that new growth if strong enough and fast enough can start out yellow? I have seen this many times and always got worried until a day later when it starts greening up! I think i just learned somthing new here, wohooo!! Sorry to go off the topic of the thread.

sparkafire · May 18, 2011

Kingrow1 said:
Hey sparky, is that right that new growth if strong enough and fast enough can start out yellow? I have seen this many times and always got worried until a day later when it starts greening up! I think i just learned somthing new here, wohooo!! Sorry to go off the topic of the thread.

No we talked about it earlier in the thread. Yes it happens in my room because of the CO2 and the hot nutes Its crazy walking in and everything is yellow tinted only to be green the next day only to be yellow the day after.

Kingrow1 · May 18, 2011

I dont use co2 but I seem to get this when my plants start to flower and are pushing out lots of new growth very fast and at the end of the veg period when my plants are starting to take off. It always worried me but i know it would go away the next day or so, made me wana give more nutes. Suppose it makes sense and glad i understand this more now. Thanks

Yellowing on New Leaves only on Seedlings

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