Well...
Come to think more ,about it....
Shade adapted plants...
Those 2 ,for sure are...
Not so much of 650-680 nm red [ RL ] or 700-750 nm [ FRL ] ...
The blues (from whites) are pretty much dispersed ,to cause Sun Adaptations ..
Green is quite enough ...( 20-25 % ... caution now...It might already ,be more than it should...)..
Overall flux is relative ,low to moderate.....
Light forces them ,to work harder considering PS....
Store more chemical energy / assimilates ,'cause light is not so much...
A certain amount of daily PS yield ,goes to leaf / node production...
Shade adapted plants have higher fractional allocation -of daily PS yields=carbonhydrates stored/spend -
in leaves ,
than Sun adapted plants...
-Which in turn ,BTW ,have higher fractional allocation to roots..They make more root...
As,of couse they 're taller ...For starters....-
Water and nutes ,should be adequately supplied ,
to support
the higher needs of a shade adapted plant.
i.e...
(
Although the example is not the best...Shade tolerance is a different thing, than Shade Adaptation...But the basic "principles" of both are almost the same..)**
"....Shade tolerant plants are thus adapted to be efficient energy-users. In simple terms, shade-
tolerant plants
grow broader, thinner leaves, to catch more sunlight relative to the cost of producing the leaf. Shade tolerant plants are
also usually adapted to make more use of soil nutrients than shade intolerant plants...."
http://en.wikipedia.org/wiki/Shade_tolerance
**
In ecology, shade tolerance is a plant's abilities to tolerate low light levels.
The term is also used in horticulture and landscaping , although in this context its use is sometimes sloppy, especially with respect to labeling of plants for sale in nurseries.
Shade tolerance is a relative term, (shade/sun adaptation isn't...)and its use and meaning depends on context.
One can compare large trees to each other, but when comparing understory trees and shrubs, or non-woody plants, the term takes on a different meaning. Even in a specific context, shade tolerance is not a single variable or simple continuum, but rather a complex, multi-faceted property of plants, since different plants exhibit different adaptations to shade. In fact, the same plant can exhibit varying degrees of shade tolerance or even of requirement for light, depending on its history or stage of development.
A massive flower production will ,probably,depend on stored assimilates / energy more ,
than from the daily photosynthetic yield ,during flowering...
If ,during late flowering , a shade adapted plant receives still same amount of light as while in vegetative growth....
Then it will provide mainly from daily PS yields ,the essential matter/energy for flower production...
But as a shade adapted plant it has low reproductive effort...
This means not many flowers ?
It might...
I'm going to add two more panels...
( Experimental ones... )..
10 x rL 620-640 nm
10 x CW 6500-7500 ° K
2 x WW 2700-3500° K
2 x UVa / VL 390-410 nm
Increasing overall power...
But...
I'm going to increase the distance of the led panels ,from the scrog canopy...
Decreasing irradiance ,increasing coverage...
So,the plannts will receive less light
-
as occuring in natural enviroment,specially to Shade adapted ones...
Forcing them to use their leaves' storage..
Try to kill them ....
Increasing their reproductive effort....
...Reproductive effort is defined as that proportion of the total energy budget of an organism that is devoted to reproductive processes....
.....Selection for high levels of reproductive effort should occur when extrinsic adult mortality is high, in environments with constant juvenile survivorship......
....A plant while juvenile ,can grow in low light conditions.
Becoming Shade Adapted....
Later the same plant ,while greater in size- and needs-,is threatened ,
if light gets even less..
...So...It increases it's reproductive effort....While having plenty of resources stored in leaves ....
That's why, probably, massive flowering is occuring....
.....If resources are low .... (Sun adapted plant.)
(decreased storage of assimilates/ chemical energy -Carbonhydrates-
and deep roots in ground ,away from topsoil,for efficient assimilation of new...
High photosynthetic rates,but with less " Photosynthetic overall mechanisms ",
under constant defence against light....)
Then ,yes,probably reproductive effort,
-The proportion of its resources that an organism expends on reproduction.-has to be high....
Late ,in flowering ,I wanna see all-most of leaves turn yellow...
...
If this theory stands...
Then ,there's gonna be a lot of flowering ....
P.S./Edit:
Afterall,up till now,we were taking into account,
only two out of four properties of light-regarding flowering stage......
-Duration ( 12/12 cycle ..)
- Quality (more red light.... )
..
I'll take my chances,also with Quantity (less ) and Direction ( unidirectional...) ...
At least ,in natural environments ,at sites were mj is growing and having massive flowering....( "Indicas" )
All four properties,of sunlight,change towards this scheme...
First "Indicas" ,usually, are shade adapted plants ...(less overall irradiances than "Sativas"....)
With long vegging (4-5 months ..),under low/moderate irradiances ,lasting for long time
(S.Solstice at 45° :a bit more than 15 hours...)
And short flowering...(2-3 months..)
Plenty of large leaves....
Having lateral roots ,mainly with really low Shoot/Root* ratios.. (Shoot is more....)
...Bigger nutrient and water assimilations than "Sativas"-which are Sun adapted plants,mainly....
And after August -Sept ,sunlight falls, really angled -dispersed-unidirectional and with way less irradiances than before (summer)..
Threatening the survivorship of "Indicas" ( aka shade adapted cannabis ? ) .....
Forcing them to use all stored minerals /energy for flower( & seed ) production...
For sure "warmer " light (more rL-RL-FRL ) plays a role,there...
For sure also the decrease of daylight duration (after Autumnal Equinox ,drops under 12 hours per day...)
But also overall irradiation decrease and unidirectional light ,probably,play a role too...
We shall see...
)
. Such effects are further accentuated within intact leaves by accessory pigments and greatly lengthened absorption pathways resulting in about 85% of visible wavelengths being absorbed(And greens....) (Figure 1.9).
