Quality over Quantity techniques

RM3

RM3

Well-Known Member
shorelineOG said:
Are you saying for quality but the yield is higher with more light?
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Google Mid Day Depression 8)

Morning reduction of photosynthetic capacity before midday depression
www.nature.com › Scientific Reports
Nature
by K Koyama - ‎2014 - ‎Cited by 3 - ‎Related articles
Mar 17, 2014 - Midday depression of photosynthesis has important consequences for ecosystem carbon exchange. Recent studies of forest trees have demonstrated that latent reduction of photosynthetic capacity can begin in the early morning, preceding the midday depression. ... Our results demonstrate ...
Midday depression in net photosynthesis and stomatal conductance in ...
link.springer.com/.../10.1007%2FBF00...
Springer Science+Business Media
by PG Roessler - ‎1985 - ‎Cited by 52 - ‎Related articles
Yucca glauca in the Colorado shortgrass prairie undergoes a pronounced midday depression in net photosynthesis and stomatal conductance under summer ...
The midday depression of CO2 assimilation in leaves of Arbutus ...
www.ncbi.nlm.nih.gov/.../2...
National Center for Biotechnology Information
by K Raschke - ‎1986 - ‎Cited by 113 - ‎Related articles
The midday depression of CO2 assimilation in leaves of Arbutus unedo L.: diurnal changes in photosynthetic capacity related to changes in temperature and ...
Midday depression of photosynthesis is related with carboxylation ...
www.sciencedirect.com/science/.../S0304423809003628
ScienceDirect
by WD Guo - ‎2009 - ‎Cited by 8 - ‎Related articles
On clear sunny days, a midday depression of photosynthesis of outdoor grown plants are often observed and maximum rates of CO2 assimilation occur only ...
(137) High Temperature Increases the Midday Depression of Net ...
hortsci.ashspublications.org/content/41/4/1056.4.short
by YC Chang - ‎2006 - ‎Cited by 1 - ‎Related articles
Abstract. Photosynthetic rate is reduced during midday in some crops; this phenomenon has been termed as midday depression (MD). Oncidium also suffers ...
Midday depression of net photosynthesis in the ..
 
BobCajun

BobCajun

Well-Known Member
RM3 said:
Love ya Bro, but in the end you are developing a system geared towards yield, and this is the way it is with regard to any cash crop. More crop = more money and I'm not saying it's wrong to think that way I actually applaud your endeavor !

But you are wrong there are limits and the grower must decide because each one of these things affect overall yield

Lower light timings = better end product due to genetic expression leaning Sativa
Standard 12/12 = higher yield but genetic expression leans Indica

And to be fair this is an area where preference matters, it may well be that the grower prefers the sedative couch lock high to cerebral energetic high. Since as a breeder/grower I prefer the high flyin trippy highs from the 60's & 70's I want my flowers leaning towards their true Sativa genetics with perhaps a minor Indica influence, so I choose the lower light timing sacrificing a bit of yield.

Blue to red ratio, it has been well known for ever that more blue = more trics, less overall yield. I run 9 blue bulbs to 6 red bulbs and because of it I sacrifice a bit of yield but have way more frost and because of the 3 UV bulbs that more frost translates into more potency. and tty this is where your Cobs fail because white Cobs means equal amounts of red/green/blue. I do realize they come in different temps leaning slightly one way or the other just like any light source. I also know you can get a deep blue Cob but have not seen anyone doing it ? Everything I've seen has been yield based.

Nutes, Low erratic dose feeding = better end product, higher steady dose feeding = higher yield. It is a true and valid art form to keep our plants healthy with minimum low dose feeding and just enough N to remain healthy & green. This style of growing causes a bit of leaf loss and therefore affects overall yield. It is well known in the Hemp growers world that high N suppresses THC and they feed high N nutes to generate high vegetative yields while keeping any THC production low as there is a guberment standard that must be kept for the Hemp classification.

Oddly enough this is the actual reason that those growers that abuse bloom boosters and flush at the end have the illusion of better weed, They think they are flushing the nutes out but what is actually happening is the plant is being starved of N and yes as stated this lowers yields and results in a better end product.

Lastly is humidity, a lower flowering humidity results in a better end product at a minor expense in yield as the plant will produce more resin to slow transpiration. A higher humidity will result in higher yield but with less resin production

So, as I already said, there is a line that the grower must choose where to draw?

Please, please please feel free to to do the side by side experiments for yourselves 8)
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I think the flushing or nute reduction may reduce nitrates in the crop. Here's an article about nitrates in vegetables. Plants incorporate them into proteins over time but if too much is supplied it just builds up. While you don't usually eat weed I assume that smoking nitrates would produce nitrogen oxides which wouldn't be easy on the lungs.

About blue light, interesting if it really does bring out trichs. I wonder if EOD blue would have the same effect. And yes white LED is not a well balanced spectrum. That's why you need to tune the spectrum with a filter. I ordered a couple so I'll soon see if it helps. I suspect it will reduce the bleaching effect. It will reduce efficiency of course but that's not my main concern. I need to improve quality. This filter is called Blush Pink but it's exactly the same as a 1/2 Minus Green. This one has a better light transmission and should suffice to improve things, flatten out the LED spectrum some.

 
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BobCajun

BobCajun

Well-Known Member
Interesting thing about blue light, there's a higher percentage in sunlight at dusk. So maybe EOD blue would have an effect.

Diurnal fluctuations predictably occur in daylight spectral distributions across the 400-800 nm range at fixed, short time intervals during the day (Hughes et al, 1984). Two primary fluctuations were observed as the solar angle diminishes toward dawn and dusk when the proportion of direct versus diffuse radiation declines, Figure 1. First, and more markedly, there is a pronounced relative peak in the blue (B 400-500nm) region. Secondly, since direct beams traverse a longer path through the atmosphere at this time of day, atmospheric absorption and scattering is increased. Thus shorter wavelengths are depleted and a small, yet measurable, drop occurs in the R:FR ratio. This striking rise in the B level at dusk could suggest that a photoreceptor in this range acts to detect the end of daylight.
source
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RM3

RM3

Well-Known Member
BobCajun said:
Interesting thing about blue light, there's a higher percentage in sunlight at dusk. So maybe EOD blue would have an effect.
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Have not end of day but did do the 24 hour blue thing that Ed talked about several years ago. Supposed to be like moonlight. Once again saw no improvement so stopped doing it
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blue.jpg blue2.jpg blue3.jpg
 
innerG

innerG

Well-Known Member
shorelineOG said:
How come under a trampoline where it is shaded the grass grows a lot taller? My plants under the lights are always bigger than the ones off to the side.
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Several reasons:

- it may not get mowed because it's under the trampoline

- it's shielded from intense midday heat

- it can retain more surface moisture because it's shaded
 
Lucky Luke

Lucky Luke

Well-Known Member
innerG said:
Several reasons:

- it may not get mowed because it's under the trampoline

- it's shielded from intense midday heat

- it can retain more surface moisture because it's shaded
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- It holds the heat.

-Helps Prevents Frost damage.
 
Afgan King

Afgan King

Well-Known Member
RM3 said:
When I use 5 gallon pots (which I admit is rare) I veg for 9 weeks, filling the pot with roots is a veg thing. I regularly grow 3 foot plants in 1/2 gallon pots without issue and avg veg is 4 weeks

There are products that stimulate root growth, but I don't use any of em
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Dear Lord that's small no offense I use 7 gal pots and fill them in 14 days I always have full root balls. The bigger the roots the bigger the fruits
 
Budley Doright

Budley Doright

Well-Known Member
Afgan King said:
Dear Lord that's small no offense I use 7 gal pots and fill them in 14 days I always have full root balls. The bigger the roots the bigger the fruits
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So you have a full root ball in 14 days from seed??? :o ...., oh never mind lol. So you have a full root ball in 28 days? Lol
 
shorelineOG

shorelineOG

Well-Known Member
Pulpit_ said:
Fermentation and sweat curing is a must and curing in turkey bags gives you superior smoke

Can someone elaborate the correct way to do this ? very interesting.

great info guys...keep it rolling along
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As soon as it is dry enough for the stem to snap stuff the bud in a turkey bag and close the top. The next day your buds will be moist, open the bag until the buds are dry again, if they are too moist you need to put the bud in a paper bag. After it dries again, sweat the moisture out and redry. You dry the bud evenly this way instead of having the outside dry and the stem still holding moisture. This also starts the fermentation process. Once you can leave the bag closed and it stops sweating it is ready for storage and will cure perfectly as it ages. Keep a close eye on it and do the sweat,dry,sweat about three times. This works perfect in the turkey bags and I can't replicate this as good in tupperware or glass jars.
 
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