Pinching top of buds (Backbuilding) technique

sandman83

sandman83

Well-Known Member
Rasta Roy said:
I wouldn't trust your pics either. I would trust data because then it would be science. Because there is no science or reliable data currently available to support your claim. Because it's simply not true. You are hurting your plant and claiming it is giving the result you want without bothering to see if it actually is.

Technically my friend, my official job title is Commercial Indoor Agriculture Specialist. And you can't just try it on one plant because then you're not going to have sufficient data to support or refute your claim.

I work with plant pathologists my friend. We don't even prune leaves off after a few weeks in flower because it creates entry points for mold and disease; and slows resin production ruining the quality of product we are delivering to our patients. This is just another anecdotal growing technique that gets passed around message boards but is never used by any actual pros. You haven't stumbled upon some technique none of us have heard of. We all tried a lot of ignorant shit before we actually started documenting our data and using it to improve what we were doing.
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what is your opinion on gentle supercropping of tall buds to reduce stretch during the first few weeks of flower? Outdated?
 
Rasta Roy

Rasta Roy

Well-Known Member
sandman83 said:
what is your opinion on gentle supercropping of tall buds to reduce stretch during the first few weeks of flower? Outdated?
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Very. To reduce stretching in the first few weeks keep your Co2 ppm to around 600, and lower your light intensity if you have to, to keep your plants from over stretching. Your best bet is to flower your plants at the appropriate height so that they can naturally stretch as much as they would like to.
 
Roger A. Shrubber

Roger A. Shrubber

Well-Known Member
i'm not aware of that "technique"...it sounds a lot more reasonable than "backbuilding"....but...any damage done to slow down a plant, will do just that...slow down the plant, just when it's trying to switch into high gear. if you're growing a new strain, obviously you don't know what it's going to do the first time around. once you've grown it out once, you should be ready for it the next time, and take care of those issues well before it ever gets flipped to flower...top it more, train it out, use a product with cytokinen to slow down vertical growth, use more blue spectrum in early flower...
 
sandman83

sandman83

Well-Known Member
Roger A. Shrubber said:
i'm not aware of that "technique"...it sounds a lot more reasonable than "backbuilding"....but...any damage done to slow down a plant, will do just that...slow down the plant, just when it's trying to switch into high gear. if you're growing a new strain, obviously you don't know what it's going to do the first time around. once you've grown it out once, you should be ready for it the next time, and take care of those issues well before it ever gets flipped to flower...top it more, train it out, use a product with cytokinen to slow down vertical growth, use more blue spectrum while flowering....
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Not trying to slow the plant per se, more the tallest buds and allow the shorter to catch up/maintain canopy. I'll be honest I haven't read all the new techniques and stuff just been doing my thing for awhile. They got away from me this time so I'm just debating what to do at the moment. And yeah pretty much new strains each run so no idea what they will do during flower. I've wanted to grab a mother but nothing stood out as "amazing" enough to want to run again yet.
 
sandman83

sandman83

Well-Known Member
Rasta Roy said:
Very. To reduce stretching in the first few weeks keep your Co2 ppm to around 600, and lower your light intensity if you have to, to keep your plants from over stretching. Your best bet is to flower your plants at the appropriate height so that they can naturally stretch as much as they would like to.
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lol I did the exact opposite...I moved em into flower with Co2 and more light thinking they would stretch less.... oh well live and learn.
 
Rasta Roy

Rasta Roy

Well-Known Member
Roger A. Shrubber said:
i'm not aware of that "technique"...it sounds a lot more reasonable than "backbuilding"....but...any damage done to slow down a plant, will do just that...slow down the plant, just when it's trying to switch into high gear. if you're growing a new strain, obviously you don't know what it's going to do the first time around. once you've grown it out once, you should be ready for it the next time, and take care of those issues well before it ever gets flipped to flower...top it more, train it out, use a product with cytokinen to slow down vertical growth, use more blue spectrum in early flower...
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I would be careful with those products if your product is tested for market. Some of those products have unlabeled pgrs that will make you fail some state tests.
 
sandman83

sandman83

Well-Known Member
Rasta Roy said:
@sandman boost your Co2 up to 1200 until you reach your ripening phase then you wanna back down to 600-800 ppm to help prevent foxtailing.
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Will keep that in mind, thanks very much for the suggestions. I'm just gonna keep my hands off and let em run the next 8 weeks with as little touching as possible.

I was using MH for veg, so should've been plenty of blue light, when I switched to flower room they just exploded on me. Flowered at ~24" avg height, most sitting around 58-60" at the moment even with horizontal training and spreading of the canopy.
 
Rasta Roy

Rasta Roy

Well-Known Member
sandman83 said:
lol I did the exact opposite...I moved em into flower with Co2 and more light thinking they would stretch less.... oh well live and learn.
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Ideally you're getting your light intensity up to full before flower, but pulling it down is something you have to do when experimenting with a new strain.
 
DBOE1979

DBOE1979

Active Member
All I said was I tried it and it worked! I seen it done by a guy more reputable then you fellas ‍♂ Sorry I’m not a scientist and don’t forget a scientist told you goof balls Pluto was a planet lmao Somethings can’t be explained that’s why we try new things goodness use some innovative skills if you have some or don’t but don’t knock ppl trying something new! Grow on!!
 
Rasta Roy

Rasta Roy

Well-Known Member
DBOE1979 said:
All I said was I tried it and it worked! I seen it done by a guy more reputable then you fellas ‍♂ Sorry I’m not a scientist and don’t forget a scientist told you goof balls Pluto was a planet lmao Somethings can’t be explained that’s why we try new things goodness use some innovative skills if you have some or don’t but don’t knock ppl trying something new! Grow on!!
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It's not anything new my friend, but keep doing what you love I'm not here to stop you.
 
Flowki

Flowki

Well-Known Member
DBOE1979 said:
All I said was I tried it and it worked! I seen it done by a guy more reputable then you fellas ‍♂ Sorry I’m not a scientist and don’t forget a scientist told you goof balls Pluto was a planet lmao Somethings can’t be explained that’s why we try new things goodness use some innovative skills if you have some or don’t but don’t knock ppl trying something new! Grow on!!
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I'm trying something new, to enlighten people against silly ideas. Now I have you in a conundrum ;p.
 
Rasta Roy

Rasta Roy

Well-Known Member
PURPLEB3RRYKUSH said:
If yah plants slow at finishing, pinching tops helps them finish faster
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No it doesn't. It would completely halt trichome production. What you're seeing isn't the plant ripening, it's the plant degrading. It's like you're harvesting and then drying your buds under your grow light instead of in the dark. You are literally lowering the amount of thc in your end product.
 
hipressure

hipressure

Well-Known Member
I like this method and have personally seen it done on a regular basis commercially ! Dont be suprised if you get a bit of( re veg symptoms ) or foxtail etc .

But it does definitely work I plan on pinching off half my crop this weekend !
 
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