Upturned leaves....

recvryjst42day

Well-Known Member
Upturned leaves, just the ridges of the leafs. Like if my lights are too close the ridges of the leaves will turn upwards a lil bit from the heat. So heres my question, what harm does this do to my plant? I know heat will slow photosynthesis, but with injected co2, this shouldn't be a problem IMO ( I have no proof, I am just stating an opinion ). Is there anything else going on inside my little girls? And am I correct in my opinion?
 

GoodFriend

Lumberjack
with the proper amounts of co2, you could run your room at 90 F, but yeah, you get too hot, and it growing justs stops as it closes its stomata to prevent extreem water loss... and without the plants respiratory system working, it has no way of using energy...
 

GoodFriend

Lumberjack
Effects of Climate Change on Plant Respiration

Michael G. Ryan

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Plant respiration is a large, environmentally sensitive component of the ecosystem carbon balance, and net ecosystem carbon flux will change as the balance between photosynthesis and respiration changes. Partitioning respiration into the functional components of construction, maintenance, and ion uptake will aid the estimation of plant respiration for ecosystems. Maintenance respiration is the component most sensitive to changes in temperature, CO2, protein concentration and turnover, water stress, and atmospheric pollutants. For a wide variety of plant tissues, maintenance respiration, corrected for temperature, appears to be linearly related to Kjeldahl nitrogen content of live tissue. Total and maintenance respiration may decline under CO2 enrichment, but the mechanism, independence from changes in protein content, and acclimation are unknown. Response of respiration to temperature can be modelled as a Q10 relationship, if corrections for bias arising from daily and annual temperature amplitude are applied. Occurrence and control of the cyanide—resistant respiratory pathway and acclimation of respiration rates to different climates are poorly understood, but may substantially affect the reliability of model estimates of plant respiration.
See full-text article at JSTOR



ESA Online Journals - Effects of Climate Change on Plant Respiration
 

recvryjst42day

Well-Known Member
Am I reading this wrong, or is this telling me CO2 slows respiration (of the plant)???

"Total and maintenance respiration may decline under CO2 enrichment"^
 

GoodFriend

Lumberjack
i just googled "plant respiration and temperature" and thats the first real relevent thing i saw... sorry i didn't look more into it, i was rushed by a friend to go smoke...

look more into it though... cuz plant respiration controls its whole growth process practically =]
 
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