Doctor Derp

Well-Known Member
I've been meaning to get this thread up here for a while, but getting the op built out, then up and running, has taken up most of my time over the last couple weeks. So, here we go.

The total space I've got is about 200 square feet, but this area is about 12 feet by eight feet I would say.

I'm running approx. six gallons of soil in seven gallon grow bags, the bottom half of which is a cooked / composted super soil. There are two pods of nine bags each, all of which have a single seedling of Mephisto Genetics' Double Grape. The beans germinated over a 24 hour period between wet paper towel, then were placed directly into soil approximately 3/4th of an inch down, and loosely covered back up. Special attention was paid to proper orientation of each fledgling to ensure no delays in their breach of the surface. After an additional 24 hours, all eighteen seedlings have started to stretch their leaves towards the light.

Lighting consists of eight QB304 being driven in pairs by four Meanwell HLG-320H-C1400A. The boards are currently about 36 inches above the soil surface and all drivers are turned to their minimum setting. Once I see comfortable growth the drivers will be turned up over a period of weeks to ensure the plants can easily adjust to their lighting. All lighting will be run 24/7 for the duration of this grow.

Other than perhaps experimenting with a compost tea or two, I intend to only give PH'd, aerated RO/DI water throughout the grow. If this is a mistake, feel free to convince me otherwise.

I have a single GSC plant that was harvested about a week ago, and I deemed worthy of preservation. So, we are going to attempt to re-veg this plant and take cuttings for future growth / mother plants. There is a small growth coming from the original seedling-stem area of the plant, which has a pair of single leaves, and then what looks like a couple of very tiny growth tips as well. I'm hoping that more areas will appear over the coming weeks. This plant is in a 5 gallon DWC bucket running 1/4 strength GH flora series veg nutrients. I'll be changing this out once weekly until I'm comfortable that the roots are stable in their new environment.

And here are a couple of pictures. The webcam bucket is for a time lapse video that I'm going to put together of one of the seedlings. I'm taking one frame every 30 seconds. As the seedling broke the surface, you can see clear movement over as few as 10-12 frames. The growth at this young stage of the plant's life is incredible.




 

freemanjack

Well-Known Member
those seedlings look to be stretching a little too much, i'd give em more light personally. Good luck with re-vegging, never works when i try it.
 

Doctor Derp

Well-Known Member
those seedlings look to be stretching a little too much, i'd give em more light personally. Good luck with re-vegging, never works when i try it.
I thought the same thing when I checked on the seedlings this morning, too much stretch it seems. I can't go much lower than where I'm at right now and still cover the grow area footprint, so my intent is to control light intensity solely by adjusting my drivers, instead of moving up or down with the fixtures. I turned the drivers up to 250w each from 125w, and we'll see if there's any improvement. I neglected to mention that I keep room temperature between 76 and 82 degrees fahrenheit, with relative humidity of 50 to 60 percent. Having the time lapse photos is going to be a great tool for pinpointing exactly when things happen, good or bad. In horticulture, as in many things, I have found that information is key to success. We don't need all of this technology to grow beautifully successful cannabis plants, but it sure does make the job less difficult. I am a relatively inexperienced grower, so this journal is an easy way to tap the community for their knowledge and experiences. We're crowdsourcing plant monitoring and care!

As for the re-veg attempt: This is the first time I've tried to do so. I hope to be able to preserve the genetics, but if the plant doesn't make it then we'll keep on keeping on.

Thanks @freemanjack for the heads up. This is precisely why this thread exists for me!
 

freemanjack

Well-Known Member
I tend to start clones/beans in smaller pots too and pot on frequently, its like the babies know how big their root space is and by restricting the root space just a little you control canopy size/shape easier during the initial phases (avoiding letting them get 'pot bound'), then from a week before i flip i give em full wellie in my bottomless soil flower space. each girl gets about 4-6 sq ft of 1 ft deep layered soil directly on top of the local natural alluvial clay. The girls will often stall above ground as soon as they have no root limitations, I assume this is down to the root growth taking everything the plant is producing, even to the point of the older leaves yellowing off a little. They soon bounce back having entirely filled the available horizontal space then grow like crazy! If you are in the mood to experiment, perhaps try a popped bean in a 2" pot, see how its growth differs from those big potted ones?
 

Doctor Derp

Well-Known Member
I tend to start clones/beans in smaller pots too and pot on frequently, its like the babies know how big their root space is and by restricting the root space just a little you control canopy size/shape easier during the initial phases (avoiding letting them get 'pot bound'), then from a week before i flip i give em full wellie in my bottomless soil flower space. each girl gets about 4-6 sq ft of 1 ft deep layered soil directly on top of the local natural alluvial clay. The girls will often stall above ground as soon as they have no root limitations, I assume this is down to the root growth taking everything the plant is producing, even to the point of the older leaves yellowing off a little. They soon bounce back having entirely filled the available horizontal space then grow like crazy! If you are in the mood to experiment, perhaps try a popped bean in a 2" pot, see how its growth differs from those big potted ones?
Actually, I think that's a great idea. I've got some smaller grow bags on the way that I can throw in the mix as an experiment. Think it'd be ok to just run more of the same beans, or wait and run clones to see? I wonder what differences in root growth we'd see using clones vs beans with both big pot and small pot methods?

Now you've got the gears turning!
 

freemanjack

Well-Known Member
Ill give them a day at the higher power level before changing more, but hope the increse was enough to end any streteching excesses.
Good feckin point! ONLY ever alter ONE variable per run unless forced to due to health issues otherwise you will derive no meaningful data. The urge to 'fiddle about' with an experimental setup is hard to resist but you are quite right, caution is always the better part of valour!
 

Doctor Derp

Well-Known Member
Good feckin point! ONLY ever alter ONE variable per run unless forced to due to health issues otherwise you will derive no meaningful data. The urge to 'fiddle about' with an experimental setup is hard to resist but you are quite right, caution is always the better part of valour!
I agree. I like to only change as little as possible, then verify results, before making more changes. I need to know what caused each change so that I can replicate, or attempt to avoid replication, in the future.

With that being said, I saw more stretch this morning from the kids. It looks to have slowed down considerably from watching bits of the time lapse thing I'm working on. So, I lowered the lighting a bit more to approximately 26" above the soil surface, which should put me at ~24 inches for the kids. I also pulled the saucers out from under the grow bags for now. I'm not giving too much water right now. By the time I need the saucers in place I'll have the lighting raised up a bit and i'll be able to move the grow bags out some and maintain light coverage.


The re-veg project for my Girl Scout Cookies plant from last run looks to be working out well so far! I've seen no new growth other than this area, and this growth started before I cut the plant down. So, I dunno if I'll get any other new growth or not from the remaining stem area.

Herbs are taking to their new digs nicely!









 

Doctor Derp

Well-Known Member
On another note: I found it much easier to keep an even footprint with two 36" QB modules as opposed to four QB304 on a single massive heatsink. Being able to adjust in three dimensions really simplifies light coverage. I can see how the HLG Elite is going to knock it out of the park once it's out in the world.
 

Doctor Derp

Well-Known Member
Well it looks like the stretch is stopping for now. Hopefully I can get the lights raised back up in the next week or so and put those saucers back in place. I don't want the pots on the bare concrete for any longer than necessary. Surely even just the saucers helps keep bugs out?
 

Doctor Derp

Well-Known Member
So, I've got the spare hardware to get a 3x3 tent running with a 600w mh/hps cheapo amazon lighting rig. I can't decide if I want to use two of these 7 gallon grow bags like the others, or break out the dwc tub and run a couple plants that way instead.

If I run soil, I can try out the up-potting method recommended previously. If I run hydro, we get to see hydro yields. Both will be under HID instead of LED, though.




Any comments from the peanut gallery?? :lol::lol:
 

freemanjack

Well-Known Member
If I run soil, I can try out the up-potting method recommended previously. If I run hydro, we get to see hydro yields. Both will be under HID instead of LED, though.




Any comments from the peanut gallery?? :lol::lol:
BAH ! hps? meh, hydro? meh! duck! (fmj flicks peanut from the gallery @Doc derp) and saucers to 'keep the bugs out? meh, add more bugs! As they say in the permaculture movement; you don't have a slug excess, you have a 'duck deficit'.
:bigjoint:
 

Doctor Derp

Well-Known Member
BAH ! hps? meh, hydro? meh! duck! (fmj flicks peanut from the gallery @Doc derp) and saucers to 'keep the bugs out? meh, add more bugs! As they say in the permaculture movement; you don't have a slug excess, you have a 'duck deficit'.
:bigjoint:
Well I'll meet you halfway. I've got the soil ready to go, and I put two Mephisto "Stilton Special" beans in the germ-in-ator this evening. So, good beans in good dirt under way-too-hot-and-inefficient MH/HPS lighting. After this run, I'll add more fancy solid state lighting.
 

Doctor Derp

Well-Known Member
Quick picture update. All but one of the 18 Double Grape seedlings is flourishing. This last gal looks about 36 hours behind everyone else. Hopefully she catches up. I setup my 3x3 tent and put nine 3 gallon pots in there, ready for the nine Stilton Special that will go in them in a few days.







 

Doctor Derp

Well-Known Member
nice start, all female too? Those feminized? clean setup bro
Yes sir, all feminized seed. Thanks for the compliments! The 18 Double Grape I ordered direct from Mephisto, got 22 DG and 10 Stilton Special as freebies. So I've got 9 Stilton and 18 Double Grape going now. I'm considering dabbling with some Silver Thiosulfate to maybe wind up with some seeds to tuck away for a rainy day.
 
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