WW 16 Days, growing weird or normal?
- Thread starter Harkin
- Start date
skunkushybrid
New Member
None...
I have a theory... but to play safe, i have to say none.
I have a theory... but to play safe, i have to say none.
Harkin
Well-Known Member
lol, alright well at least I know, wasn't sure. Cheers
skunkushybrid
New Member
Looking great. Nice work so far.
Harkin
Well-Known Member
Cheers, that means alot coming from you
So I think I'm going to harvest tomorow and stick it in the microwave haha ...j/k... I would rather smoke varookas
Harkin
Well-Known Member
When you say destructive, do you mean like sunburn etc? or destructive for the plant? There are different bulbs with diff. amounts of UVB, like 2,5,10. There are also CFL's at the petstore with UVB which are supposed to be slightly enhanced(Lucky Reptile Compact UV Sun)
So I'm not sure what to go for. There are also high wattage UV lights like this(Zoo Med Powersun UV - Mercury Vapour Lamp), not sure what to go with...
So I'm not sure what to go for. There are also high wattage UV lights like this(Zoo Med Powersun UV - Mercury Vapour Lamp), not sure what to go with...
tahoe58
Well-Known Member
well...me either....and I'm not sure anyone knows...cuz it has not been extensively studied...there is a ton o' more research to read...i have found just a pile of papers (peer reviewed) that deal with vegtative material's response to UV light....but my head hurts....my brain needs a rest. I will keep pouring through this...and provide the feedback that I get...if any of it makes any sense....and how it best be practically applied to our chosen vocation...
tahoe58
Well-Known Member
well...me either....and I'm not sure anyone knows...cuz it has not been extensively studied...there is a ton o' more research to read...I have found just a pile of papers (peer reviewed) that deal with vegtative material's response to UV light....the majority of this work is written in relation to the scare associated with the blowing open of the Ozone hole in the atmosphere, and the potnetial implications to terrestrial ecosystems.....but my head hurts....my brain needs a rest. I will keep pouring through this...and provide the feedback that I get...if any of it makes any sense....and how it best be practically applied to our chosen vocation...
tahoe58
Well-Known Member
this is an example of what I am referring to ....
Effects of UV-B radiation on photosynthesis and growth of terrestrial plants
Abstract
The photosynthetic apparatus of some plant species appears to be well-protected from direct damage from UV-B radiation. Leaf optical properties of these species apparently minimizes exposure of sensitive targets to UV-B radiation. However, damage by UV-B radiation to Photosystem II and Rubisco has also been reported. Secondary effects of this damage may include reductions in photosynthetic capacity, RuBP regeneration and quantum yield. Furthermore, UV-B radiation may decrease the penetration of PAR, reduce photosynthetic and accessory pigments, impair stomatal function and alter canopy morphology, and thus indirectly retard photosynthetic carbon assimilation. Subsequently, UV-B radiation may limit productivity in many plant species. In addition to variability in sensitivity to UV-B radiation, the effects of UV-B radiation are further confounded by other environmental factors such as CO2, temperature, light and water or nutrient availability. Therefore, we need a better understanding of the mechanisms of tolerance to UV-B radiation and of the interaction between UV-B and other environmental factors in order to adequately assess the probable consequences of a change in solar radiation.
Effects of UV-B radiation on photosynthesis and growth of terrestrial plants
Abstract
The photosynthetic apparatus of some plant species appears to be well-protected from direct damage from UV-B radiation. Leaf optical properties of these species apparently minimizes exposure of sensitive targets to UV-B radiation. However, damage by UV-B radiation to Photosystem II and Rubisco has also been reported. Secondary effects of this damage may include reductions in photosynthetic capacity, RuBP regeneration and quantum yield. Furthermore, UV-B radiation may decrease the penetration of PAR, reduce photosynthetic and accessory pigments, impair stomatal function and alter canopy morphology, and thus indirectly retard photosynthetic carbon assimilation. Subsequently, UV-B radiation may limit productivity in many plant species. In addition to variability in sensitivity to UV-B radiation, the effects of UV-B radiation are further confounded by other environmental factors such as CO2, temperature, light and water or nutrient availability. Therefore, we need a better understanding of the mechanisms of tolerance to UV-B radiation and of the interaction between UV-B and other environmental factors in order to adequately assess the probable consequences of a change in solar radiation.
Harkin
Well-Known Member
Fosure, I wasn't really expecting a clear cut answer as it seems not that much is known about it. But I'm still going to do it and try, maybe catch a quick tan while I'm watching my plant I'll just get the UVB CFL for now as that just plugs into a normal bulb socket and it is cheap, we'll see what happens... and its only 23w
I'll just get the UVB CFL for now as that just plugs into a normal bulb socket and it is cheap, we'll see what happens... and its only 23w
tahoe58
Well-Known Member
gotchya....yea...its gonna be very interesting....and I expect we'll make more mistakes than not...but its worth playing with I think. Like the fella said back in 1999....previous post.....short twenty minutes bursts.....sort like radition treatments for cancer.....don't want to kill the patient...but gain the benefit......hopefully your plants hair won't fall out?!
Harkin
Well-Known Member
Jeebus, doesn't sound good. But if you think about it, in nature our lovely budding friends will get UVB, so they must have some defense against it. So I'm not going to go crazy with it because my plants look great( seen new pics Tahoe?) and a bit of UVB could not be bad... I hope, but like I said just a bitthis is an example of what I am referring to ....
Abstract
The photosynthetic apparatus of some plant species appears to be well-protected from direct damage from UV-B radiation. Leaf optical properties of these species apparently minimizes exposure of sensitive targets to UV-B radiation. However, damage by UV-B radiation to Photosystem II and Rubisco has also been reported. Secondary effects of this damage may include reductions in photosynthetic capacity, RuBP regeneration and quantum yield. Furthermore, UV-B radiation may decrease the penetration of PAR, reduce photosynthetic and accessory pigments, impair stomatal function and alter canopy morphology, and thus indirectly retard photosynthetic carbon assimilation. Subsequently, UV-B radiation may limit productivity in many plant species. In addition to variability in sensitivity to UV-B radiation, the effects of UV-B radiation are further confounded by other environmental factors such as CO2, temperature, light and water or nutrient availability. Therefore, we need a better understanding of the mechanisms of tolerance to UV-B radiation and of the interaction between UV-B and other environmental factors in order to adequately assess the probable consequences of a change in solar radiation.
Harkin
Well-Known Member
If they do I will just blame you
tahoe58
Well-Known Member
in one paper...the following statement might be a guiding benchmark....high irradiance of UV-B radiation (0.63 W m−2) .... so with a little math .... and a clearer mind one could figure out some boundaries around room size, and wattage...(I think).... I am certainly not a photophytoscientist....