LOL ok I have read enough, and I actually know the science behind it, maybe it's you that needs to do some reading, cutting off leaves exposed to light to expose other leaves to light is pretty dumb and counter productive. You continue to miss the irrevocable fact here.. Light does pass through leaves, hence why we have layered levels of leaves... You don't think a plant knows how to grow it's own flowers? You think after 10 million years of doing it they need some stoner hacking leaves off to effectively make large healthy flowers,?? Come on man.. Lol.
Light Absorption
- Incident light collects on upper leaf, diffuse light collects on lower surfaces through epidermal cells
- Internal cell arrangements (for dicots)
Epidermal cells on both surfaces
Mesophyll cells in between
Palisade cells &emdash; elongated; layered perpendicular to leaf surface
Spongy &emdash; irregularly arranges w. air spaces (isodiametric)
Note:
Monocots have mesophyll cells of one type (NO "palisade")
Chloroplasts abundant in palisade mesophyll (evolutionary adaptation to higher fluence rates of incident light)
"sieve effect" &emdash; arrangement of the chloroplasts is not a solid sheet &emdash; much light passes through w/out being absorbed, therefore, leaves have multiple layers to "catch" what passes through! (light scatters at the same time and can be used)
How is light scattered?
Photons change direction due to
- refractive index of air different from r.i. of water
- bouncing off organelles
- air-water interfaces, which are abundant in spongy mesophyll
- Also &emdash; palisade cells are not as efficient (as we might expect), they act as light guides
Light passes thru the epidermis to the intercellular spaces that act like optical fibers, passing the light to the spongy mesophyll
The result?
- Both scattering & light guides result in an overall greater photosynthetic efficiency for the leaf by distributing light energy to all the cells.
- I'm gonna say it one more time to hopefully get my point across.. Light passes through leaves... There is a reason plants grow layered leaves. It's more efficient. When you hack fingers off leaves exposed to light you are only lowering the total effective photosynthically active surface area. PERIOD.