Auto’s in RDWC Setup???
- Thread starter punit
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cat shit
Well-Known Member
My experience with autos is the more you grow at once the better the yeild. If you are doing RDWC you can expect much better bigger growth but grow as many as your tent, room will allow. I grow autos in peat based mediums and coco\perlite. The coco,/ perlite always yeilds twice as much as the latter so RDWC if done right should in theory provide you with a good to excellent yeild. These 4 pinneapple express yeilded 19 oz in a 3×3 in a peat based medium. I expect a pound per 3x3 but with autos anything can hapen to diminish that. My next run will be all coco/perlite 14 autos spread evenly over a 4x4 and 2 3x3s i dont like to make predictions on yeild just hope for the best and try to grow then as stress free as possible. Good luck!
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cat shit
Well-Known Member
Here is a side by side grow of two strawberry cheese cake autos the left is in 70/30 coco/perlite the right peat based and as you can see the left is by far the winner. while autos are unpredictable the choice of medium has a big impact if everything goes well
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Nutty sKunK
Well-Known Member
Best avoided if you aren’t familiar with growing plants.
I top most of my autos, some leggy ones almost require topping to keep them in check
I've grown autos and photos and have found that the yield estimates on the vendor sites to be conservative. A yield of 400-600gm/sq meter is very common and that's a good mark to shoot for.
My suspicion is that those values are derived from plants that have been grown in a good environment and that have been well fed. By "well fed", I mean that the grows have been given light levels in the region of 1000µmol. Most strains of cannabis will thrive at the level, or higher, in ambient CO2 but, my impression having been on a handful of cannabis sites for > four years, is that the vast majority of growers give their plants about 25% less than that. Seeing that, in cannabis, yield increases in a linear/almost linear manner as light levels increase, most growers don't achieve the 400-600gm/sq meter figure.
I think this was a Gelato auto. Well, there are two plants in there but
With the exception of photoperiod, I don't treat autoflowers any different than I do photoperiods. They're both cannabis so they are fundamentally the same plant. In all cases, I top my plants at the fourth node on day 21±, LSST them, remove very few leaves, get them to at least 1000µmol ASAP (by day 30±), and LTFA.
cat shit
Well-Known Member
Awesome grow!
Topping a plant has no connection to the grow medium. It's just a way of changing shape and structure ("morphology") of a plant. I grow in hydro and routinely top and LST my plants, both photoperiods and autoflowers.
There's never a "need" to top a plant but topping is a very useful technique in growing cannabis. One reason is that, with the removal of the apical stem, the branches tend to be a more consistent length. That makes harvesting easier and reduces the difference in potency between the colas at the top of the plant and those further down the plant.
The primary reasons for topping is that it allows a grower to create a more even canopy which, when compared to plants that aren't topped, will make it easier light the canopy and that, in turn, will tend to result in a higher yield.
In the illustration below, it's impossible to get the same light cast on the canopy on the left as a grower would with the canopy on the right. Given how quickly light levels drop as distance from the grow light increases, the amount of light falling on the canopy on the right will be markedly higher than the amount of light falling on the canopy on the left.
This plant was topped and LST'd and had the most even canopy I've ever grown.
Below are the last set of light readings that I took before chop. The low readings (1 and 20-24) skew the values but even with values in the 6 and 7 hundreds the standard deviation for PPFD is only 128µmol which 13% of the PPFD. When the outliers are removed, STDEV drops to only 75µmol which about how much levels drop if you move 1" from the light source.
driver77
Well-Known Member
I should have said it's "easier" to get atypical growth with autos in hydro. I've found my best yield with autos comes by not topping and instead using some lst or just tucking a leaf or 2.
