Randy Butternubs
10-24-2012, 08:48 AM
http://i142.photobucket.com/albums/r82/Dolebiscuit/2012-10-21231211.jpg
http://i142.photobucket.com/albums/r82/Dolebiscuit/2012-10-21231258.jpg
I'm new to growing, and I was hoping someone with experience could help me diagnose what's going on with these. These are technically a friend of mine's, but I've helped him care for them from seed. They're all Jack Herer seedlings that were germed in rockwool, then put into a soil mix in a plastic cup. Initially he didn't put holes in the bottom of the cup for drainage, but they were added weeks later. As it is, these seedlings are about 3-4 weeks old, and within the past two weeks they've been very stunted in growth, and the leaves started discoloring by turning yellow. Now they've developed a brown and even redish hue. The leaves are dry and crumbly. They are watered when the top of the soil becomes dry. The seedlings in the photos are goners I'm quite sure. But not all of them are quite as severe.
They have never been fed nutes, and were germed inside under a weak single strip flouro. Their growth was great and promising, but the air circulation in their little room was practically non-existent. So we moved them under the 4' 4 bulb T5 Flouro in a different room with good air circulation to veg more. But here's the catch, the T5 only had red-spectrum bloom bulbs in it, and only after we moved the seedlings under this new light did we start to see them stunt and wither. We have since gotten some proper veg bulbs. They're much more blue.
Unfortunately my friend doesn't see much use in investing in a PH meter, so I can't tell you the PH, but I think I'm just going to do the right thing and pick one up for him.
We've mulled through a lot of theories, but I'd like someone with experience on the subject to take a look. Could it be disease or fungus? Could it have been the bloom spectrum bulbs? Could it have been from the initial lack of drainage in the cups? Or do they just need nutrients? Or, have we overlooked something completely?
Any help is appreciated. We want to prevent this sort of thing from happening whenever we can.
http://i142.photobucket.com/albums/r82/Dolebiscuit/2012-10-21231258.jpg
I'm new to growing, and I was hoping someone with experience could help me diagnose what's going on with these. These are technically a friend of mine's, but I've helped him care for them from seed. They're all Jack Herer seedlings that were germed in rockwool, then put into a soil mix in a plastic cup. Initially he didn't put holes in the bottom of the cup for drainage, but they were added weeks later. As it is, these seedlings are about 3-4 weeks old, and within the past two weeks they've been very stunted in growth, and the leaves started discoloring by turning yellow. Now they've developed a brown and even redish hue. The leaves are dry and crumbly. They are watered when the top of the soil becomes dry. The seedlings in the photos are goners I'm quite sure. But not all of them are quite as severe.
They have never been fed nutes, and were germed inside under a weak single strip flouro. Their growth was great and promising, but the air circulation in their little room was practically non-existent. So we moved them under the 4' 4 bulb T5 Flouro in a different room with good air circulation to veg more. But here's the catch, the T5 only had red-spectrum bloom bulbs in it, and only after we moved the seedlings under this new light did we start to see them stunt and wither. We have since gotten some proper veg bulbs. They're much more blue.
Unfortunately my friend doesn't see much use in investing in a PH meter, so I can't tell you the PH, but I think I'm just going to do the right thing and pick one up for him.
We've mulled through a lot of theories, but I'd like someone with experience on the subject to take a look. Could it be disease or fungus? Could it have been the bloom spectrum bulbs? Could it have been from the initial lack of drainage in the cups? Or do they just need nutrients? Or, have we overlooked something completely?
Any help is appreciated. We want to prevent this sort of thing from happening whenever we can.