Death by Radiation

seems like a good idea also, that you have added more soil.

Another emergency has arisen… and this time it isn’t Fatboy.

Skinny has hit the deck. The stretch too much… even for him.

Here he is after having to be repaired… I’ve now moved the light in much closer, to around 9”. I can’t handle dealing with the stretch any longer. Let’s hope that this will be an end to it.

They’ve had the 0.6ec feed full of goodies. The usual NPK followed by some liquid silicon, mychorrizal fungi (endo and ecto), some mother earth tea, and some root enhancers.

.

Time for me to say night, night! See you on day 8 of vegetation.

The leaves are very similar in appearance to a plant which I have just stuck outside in the high uv levels here.

My leaves are 'tunneling' and also have a 'sheen' on them which was not present indoors.

IMHO, classic overexposure to uv radiation. I'm thinking of putting a piece of cheese cloth over it, to allow the plant to adjust to the heavy uv.

you should have just used some cheap cfl's. i got 2 25 watt cfl's that are putting out 1850 lumens each. and my 2 plants love it. there about 12 days old and allready shooting out more and more leaves. dont worry dude. ulll get the hang of growing. just do your homework. i studyed this for a yr and now i am just starting my first grow. but that light has to go bye bye. CFL's and the MH and the HPS bulbs are all good. check them out man.

Wasn't fast enough...

In the words of Garden Gnome,

I love you!

Thanks for this experiment. And for not
letting up on this difficult task of trying to
kill the seedlings. I am anxious to see how
they react to the introduction of the new
light, set to the side. As well any effects
on the N.lights with the UV light off to
their side. Keep up the good work!

well i have a few questions. i may post a thread can you guys come check it out. thanxs man. and well just come to the thread.

ha ha ha yeah skunky any day now and you too could do your first grow. lol

how the fuck do i start my own thread.

Yeah Skunk, keep at it and you'll eventually figure it out.....ROFL

Yeah, I wasn't sure what to say to the guy, so i just went with my initial reaction... he just didn't get the point of the thread.

DAY 8 of Vegetation

Today is a good day for Fatty and Skinny or, dare I say, Adam and Eve. The NL seeds still haven’t germinated properly yet after almost 48 hours (so much for good genetics!). So, these two both get to go another day with no other light to grow with, than pure UV radiation. I have to say that they both look better than the pictures will lead you to believe…

I’ve included this picture in an attempt to show the new arrangements. As you can see the fan has been raised so that it is just blowing the very tips of the plants; and the light has been lowered to just 9.5” above the plants. The UV output of the lamp should by now have adequately stabilised.

It’s almost as though they dance in the night. It would be great to set up a video camera, film this in action. It seems that the movement must be that quick. I think this is a beautiful image. From this picture you can almost imagine that everything is fine in this UV world… and it is, as such. I’ll let you judge for yourselves from the next pictures.

You want to get some halogens on those mate, you will never get your grow off the ground like that. Bleedin' amateur

On a different note, I noticed when I shone the blakray on some vegging plants how totally black they went, dark as dark could be absorbing every scrap of UV, reflecting none.

Here we have Skinny and as we can see the tri-fingered leaves are coming through healthily. Here are the stats:

Left Leaf Length: 28mm
Right Leaf Length: 28mm
Left Tri-Leaf: 17mm
Right Tri-Leaf: 17mm

Notes: Despite the dishevelled looking state, Skinny looks fairly healthy in real life, and the tri-leaves seem to be coping very well so far with the excess UV. Maybe a little early, but maybe cannabis has already adapted to the conditions.

psyclone said:

On a different note, I noticed when I shone the blakray on some vegging plants how totally black they went, dark as dark could be absorbing every scrap of UV, reflecting none.

Click to expand...

Is that a UV-C lamp?

Fatboy does look very vibrant and green in this picture; and much more like what I am seeing.

Left Leaf: 28mm
Right Leaf: 28mm
Left Tri-Leaf: 17mm
Right Tri-Leaf: 17mm

Notes: Fatboy is keeping in regular leaf growth lengths with Skinny; only in height is Fatboy lacking. I’m hoping that the lowered light will help determine more their sexual leniencies.

I never expected things to last this long. Now the light has stabilised I really feel that these plants could quite happily vegetate in the available light for as long as necessary. It would be an idea to test them under normal HID light… just to see how they react… but I won’t do that.

bongspit said:

have you looked at them with your microscope to see if there is difference??

Click to expand...

Yes I did take a look but found nothing remarkable. Ordinary leaves have this sheen or shiney patches too, so all my pic' would have shown was the same shiney stuff. Obviously on normal leaves we cannot see it... but sunlight is naturally harmful so it makes sense that plants would have some of this 'sheen' on the leaves anyway.

The effects of the 'sheen' though on these UV plants is obvious to see with our own eyes. It's certainly a defence mechanism in overdrive.

psyclone said:

On a different note, I noticed when I shone the blakray on some vegging plants how totally black they went, dark as dark could be absorbing every scrap of UV, reflecting none.

Click to expand...

The BlakRay is a uvA source and not uvB

Photobiological and thermal effects of photoactivating UVA light doses on cell cultures
PPS Articles

While near-ultraviolet light has been widely used to photoactivate fluorophores and caged compounds in cells, little is known of the long-term biological effects of this light. UVA (315–400 nm) photoactivating light has been well characterized in short-term cell studies and is now being employed in higher doses to control longer-duration phenomena (e.g. gene expression). Annexin V-Cy5/propidium iodide apoptosis flow cytometry assays were used to determine responses of HeLa cells to doses of UVA light up to 23.85 J cm–2. Cells seeded at low densities had higher percentages of apoptosis and necrosis and were also more susceptible to UVA damage than cells seeded at higher densities. The dose to induce apoptosis and death in 50% of the cells (dose1/2) was determined for two different commercially available UVA light sources: 7.6 J cm–2 for the GreenSpot photocuring system and 2.52 J cm–2 for the BlakRay lamp. All BlakRay doses tested had significant cellular responses, whereas no significant cellular responses were found for doses below 1.6 J cm–2 from the GreenSpot light source. A temperature control and measurement system was used to determine direct heating from the UVA sources and also the effect that cooling cell cultures during photoexposure has on minimizing cell damage. Cooling during the BlakRay photoexposure significantly reduced the percentage of necrotic cells, but there was no significant difference for cooling during photoactivation with the GreenSpot. Differences in cell responses to similar UVA doses of different intensities suggest that photoduration should be considered along with total dose and thermal conditions in photoactivation studies.