18 Hour Light Cycle

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drpeppersolo

Well-Known Member
plants just like any other living thing needs a resting cycle its like a human working out after a cretin extent your muscles simply wont grow any more then an hour a day anything over that causes damage anything can be trained in moderation so mimicking the natural light would seem to assist in the growth of the plant
 
Youngling

Youngling

Active Member
I honestly believe is someone were so inclined they could train a plant and bread it and continue to breed it's offspring until the plants were use to the 18h day. Making a quicker yielding plant. Maybe even a quicker grower. Ya never know, this could be a cash cow.
 
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tuone

Member

  • [COLOR=#E8E8E8 !important][COLOR=#E8E8E8 !important]
    While plants do most of their growing during the night cycle and produces most of its sugars during the light I don't know what to think.​



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[/COLOR]Sounds abit like nonsense because... if you look at a seedling, it's leaves grow in the day, rather than at night.

interesting theory however, i expect it could well work.

some scientists must have tried it on some cress or something... put cress under a 100W lightbulb for one month under the 2 different light regimes, and at the end, weigh them.
 
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tuone

Member
Early studies in tomato showed that growth improved on light/dark cycles of 24 h rather than short (6 h light/6 h dark) or long (24 h light/24 h dark) cycles or continuous light (Withrow and Withrow, 1949; Highkin and Hanson, 1954;Hillman, 1956), although this work only indirectly implicates the circadian clock in the growth response. More direct testing has come in recent years.Arabidopsis clock mutants with longer than normal periods (28 h) have lower biomass than those with short periods (20 h) when grown under short cycles (10 h light/10 h dark), and these differences in size are largely attributable to impaired physiological function, including lower rates of chlorophyll production and carbon fixation (Green et al., 2002; Dodd et al., 2005).
 
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