Hardening is one thing preparnig a plant for outdoor running 50 - 60 temps is just ridiculous, Its proven fact that for every 10 degree rise in temps the plants metabolic rate increases . with colder temps less nutrient uptake, less growth this is first year horticulture shit
Well i got to say this it appears, you have very little experience in all aspects of growing you have side stepped the most crucial parts ,
And got everything shit ass Backwards Warmer air is not drier ,,, Warmer air holds water , Cold air is drier
You keep talking about photosynthesis but yet truthfully speaking ,, you do not have a clue how it works
you keep mentioning that temps do not matter,, as long as you got a light source the plants will photosynthesis,,
right ?? but looking at your plants there already showing signs of what Def ,maybe ??? might as well throw PH is moving faster then a locomotive lol
And what on Gods green earth can be causing ????? lol
But here is a Wake up call what part of the plant does this ? ?? Here i'll tell you Chloroplast
A chloroplast is a type of
plant cell organelle known as a plastid. Plastids assist in storing and harvesting needed substances for energy production. A chloroplast contains a green pigment called chlorophyll, which absorbs light energy for photosynthesis. Hence, the name chloroplast indicates that these structures are chlorophyll containing plastids.
But WAIT A MIN here your firmly set in your beliefs that 50 - 60 degree shouldn't make a difference Right ?? Well your WRONG
In chill-stressed plants, the gene/protein expression of most of the components of protein import apparatus other than Tic110 and Tic40 were not affected, suggesting the central role of Tic110 and Tic40 in inhibition of protein import at low temperature. Heating of intact chloroplasts at 35°C for 10 min inhibited protein import, implying a low thermal stability of the protein import apparatus. Results demonstrate that in addition to decreased gene and protein expression, down-regulation of photosynthesis in temperature-stressed plants is caused by reduced posttranslational import of plastidic proteins required for the replacement of impaired proteins coded by nuclear genome.
Temperature has a profound effect on plant development (
Xin and Browse, 1998;
Guy, 1999;
Allen and Ort, 2001;
Browse and Xin, 2001). Plants exposed to chill stress, or heat stress, have impaired chlorophyll (Chl) biosynthesis due to down-regulation of gene expression and protein abundance of several enzymes involved in tetrapyrrole metabolism (
Tewari and Tripathy, 1998,
1999;
Mohanty et al., 2006). Impaired Chl biosynthesis and chloroplast development leads to reduced photosynthesis beyond the optimum temperature, resulting in substantial loss of plant productivity. The reduced photosynthesis affected by temperature stress is attributed to decline in PSII,
Fv/
Fm (variable Chl fluorescence/maximal Chl fluorescence), inhibition of electron transport, perturbation of thylakoid membrane fluidity, and consequent decline in photophosphorylation and CO2 assimilation (
Berry and Björkman, 1980;
Wise and Ort, 1989;
Havaux, 1993;
Pastenes and Horton, 1996;
Bukhov et al., 2000;
Sharkey, 2000;
Allen and Ort, 2001;
Sharkey et al., 2001;
Govindacharya et al., 2004;
Salvucci and Crafts-Brandner, 2004;
Wise et al., 2004
