veg growth vs light times

if i veg my plants under 18/6 they don't grow fast and just get really fat stems but little to no vertical growth and very tight internal spacing 1/4 of an inch spacing ( i find this a bad thing for running a scrog )

when i run my lights on 16/8 they start giving good vertical growth with about half an inch between nodes ( i think that's perfect spacing to scrog)

this just sounds dumb to me but its what i see and what i am experiencing. is it normal for a plant to grow less when receiving more light

Octastich said:

if i veg my plants under 18/6 they don't grow fast and just get really fat stems but little to no vertical growth and very tight internal spacing 1/4 of an inch spacing ( i find this a bad thing for running a scrog )

when i run my lights on 16/8 they start giving good vertical growth with about half an inch between nodes ( i think that's perfect spacing to scrog)

this just sounds dumb to me but its what i see and what i am experiencing. is it normal for a plant to grow less when receiving more light

Click to expand...

Using HPS to veg under? Guessing not. Switch to it and leave the light on.

hotrodharley said:

Using HPS to veg under? Guessing not. Switch to it and leave the light on.

Click to expand...

no im using a old tec led and i know they are not the best but i still find it odd my plants grow better under less hours of light

maybe its spectrum or just strain of plants

nodal spacing i read was due to spectrum not sure if that is true or what. could be strain/pheno type as well. i assume that because your now losing 2 extra hours of light that the plants assume it is time to flower naturally soon thus why it is getting taller. i am in the same boat as you but my plant is just bushy af think it's mostly a strain issue/pheno issue as i only run 18/6 in this grow. she grows nice but like you said she grows more bushy versus height but i am still scrogging her.

i am running 3k HLG 320W v2 QB's nothing else is really different/amazing tbh about my setup. just your cheap/ghetto setup only expensive thing is my lights and tent i suppose but i think i got it on sale.

Octastich said:

no im using a old tec led and i know they are not the best but i still find it odd my plants grow better under less hours of light

maybe its spectrum or just strain of plants

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You got me on this one. I know my plants have no problem putting on real weight with as few as 10-1/2 hours of light in flower. Enough so that I never run over 11/13. I used to veg under T5 the first week and MH the next month to two months. The node spacing was pretty tight. I just run HPS now and top and supercrop to deal with lankiness.

Octastich said:

no im using a old tec led and i know they are not the best but i still find it odd my plants grow better under less hours of light

maybe its spectrum or just strain of plants

Click to expand...

Maybe you are giving them too much light? Light too close?
Those 2 hrs less might be the optimum light the plants want.
If I run leds and batter the plants in veg with loads of light they stay very squat and short compared to HPS.
They say a more blue led spectrum ie 4000K - 5000K will produce shorter internal spacing and better for vegging but I've noticed no difference when I vegged with 3000K.
What is your old Tec led?

Raise your lights if you need stretch.

Octastich said:

if i veg my plants under 18/6 they don't grow fast and just get really fat stems but little to no vertical growth and very tight internal spacing 1/4 of an inch spacing ( i find this a bad thing for running a scrog )

when i run my lights on 16/8 they start giving good vertical growth with about half an inch between nodes ( i think that's perfect spacing to scrog)

this just sounds dumb to me but its what i see and what i am experiencing. is it normal for a plant to grow less when receiving more light

Click to expand...

Like mentioned above, raise your light a little, to get them to stretch. Or, trim away some of the huge leaves blocking too much light to the smaller leaves below. That's what I do. Mine always end up really squat and bushy, because I tend to keep the light a little closer. Once I trim away some of the big fans, my plants explode! I've seen 3" to 4" of growth a day in my dwc, after trimming.

Genetics, Spectrum, DLI & Root space will effect the overall growth, both vertical stretch & horizontal growth.

Day/night temperature swing, will effect stretch by itself, the futher apart the more vertical growth.

well i was thinking the plant might of been getting too much light because i keep it around 15 inch but its only a viparspectra 130 watt so its a trash spectrum i guess or could just be me not liking compacting plants

Octastich said:

well i was thinking the plant might of been getting too much light because i keep it around 15 inch but its only a viparspectra 130 watt so its a trash spectrum i guess or could just be me not liking compacting plants

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1/4" per node is tight af, they kind of start stretching as they outgrow the light so with a 130w panel, i dont think you should worry much.

Half an inch per node is nice though, they will stretch during transition anyway, keeping them short allows you to grow more nodes in a given area at the cost of time.

In a scrog grow, a 3ft plant with 7 nodes will not yield the same as a 3ft plant with 10+

SPLFreak808 said:

1/4" per node is tight af, they kind of start stretching as they outgrow the light so with a 130w panel, i dont think you should worry much.

Half an inch per node is nice though, they will stretch during transition anyway, keeping them short allows you to grow more nodes in a given area at the cost of time.

In a scrog grow, a 3ft plant with 7 nodes will not yield the same as a 3ft plant with 10+

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far call i was questioning that before eg whats better more smaller tops or less bugger ones .
i will know my own answer at the end my next two grows. the plant i have in flower now has 15 big tops. my last plant in flower had 45 ish small tops. i pulled 4oz from that not sure what i will pull from the 15 ish bigger tops this run
the plant i have in veg now i am trying to get around 60 plus tops.

pretty much im trying to counter the stunted vertical growth you get then topping