Vegging under MH vs HPS ?

[been]

I agree! Folks can say what they want, but after years of fuckin around with all the different wattages of MH an HPS, I found the HPS will veg plants just as good as MH. With no extra stretch. They even grow faster with HPS. Plus ya get 30% more bang for the buck! BC

I grow sativas and sativa-dom hybrids and notice a huge difference in stretch between the 2 spectrums. It's night and day.

 

[B.C.]

Well, I've grown a few sativas myself, and I still stand behind what I posted. Jus passin along my experience. I can't help it if some don't agree, that's the way it goes sometimes I reckon... BC

 

[Hammerhead]

Most Sativa's are going to stretch anyway It's very difficult to judge with Sativa strains. I have never seen a 3' sativa every one I have grown was at least 5' tall. Way back in the day I only used HPS for veg/flower I never noticed a difference in stretch imo genetics play a big role in this. Here is a pic of Kali that was in veg until it was 8" then put in flower using HPS it grew stretched to 55" both plants are the same see the fan leaf on the right very big.

 

[been]

Most Sativa's are going to stretch anyway

Really? That's why I found it so easy to distinguish; they either stretch or they don't. i'm not going by overall height, I'm judging by internodal distance.

To each they're own or whatever. Let it never be said that red lights can't veg massive healthy plants. We can all agree on that.

 

[chubbynugs]

Been using T5 for 3 years great results. You can only give your opinion and mine was very good and I still use them to this day. What does real veggin mean that's kind of a redundant statement don't ya think. Your plants are in veg or are in flower. Keeping a mother plants under T5 is good but veg is garbage that makes no sense IMO.

Real vegging is getting your plants and your root system as big as possible in shorter amounts of time. Hey i aint hating on t5s man i have one for moms. I have tried doing my veg schedule under both lights at different times. MH wins hands down.

 

[onahah]

I agree! Folks can say what they want, but after years of fuckin around with all the different wattages of MH an HPS, I found the HPS will veg plants just as good as MH. With no extra stretch. : BC

I have to agree with this. I can veg under hps or mh (actually do do that
) and they grow the same. short bushy cock suckers. always bigger than i expect and i should already know what to expect. but whatever.

They grow the same as far as i see.. But according to my education, plants chlorophyll is made up of key components in chloroplasts. These components are chlorophyl a, cholorphyll b and the caratenois.

Cholorophyll A is the main is the main light capturing pigment,
Chloroplhyll B is an accessory pigment and so are the caratenoids.

All three of these components are supposed to absorb the most light in the 450-500 nm range. which is the violet/blue. chorophyl a and b both do strongly work in the red/orange spectrum aslo...

So, i think a muixture of HPS and MH would be the best bet all around kids. i am testing with a 1k hps and 400 mh.. booo for the 400 since its so small

Haha, alot of mumbo jumbo to pass time. Fuse to a 600w digi ballast blew out.

 

[DrunkenMessiah]

Most Sativa's are going to stretch anyway It's very difficult to judge with Sativa strains. I have never seen a 3' sativa every one I have grown was at least 5' tall. Way back in the day I only used HPS for veg/flower I never noticed a difference in stretch imo genetics play a big role in this. Here is a pic of Kali that was in veg until it was 8" then put in flower using HPS it grew stretched to 55" both plants are the same see the fan leaf on the right very big.

Those are some massive inter-nodal gaps! It looks like four or five inches between each pair of fan leaves on the main stem. If you are concerned with height of a plant in Any Way you should look into supercropping. Its a very simple training practice where, beginning when the plants are 1 week old, you snag the main stem section and gently squeeze while rotating it back and fowarth. You will feel it crush and hear a little noise. This DOESN'T stress the plant, when correctly done you only crush the phloem layer of the stem. This is the outer layer where the cells are alive and they consist of the sap network and maintain downward (towards the roots) veins. Crushing too hard or kinking the stem will damage the xylem which is the inner tube of the stem consisting mostly of dead cells. All of the nutrients and water from the roots travel upward along it and mucking it up will stunt and/or kill all of the growth upstream from the break. You walk a fine line; but it takes little practice to be proficient, just always start as gently as possible and slowly, gradually build up the strength of the pinch. I have done this for years to great effect though the only place I have it documented with pics is here:

http://my.gardenguides.com/members/.../27/Our_Innovative_Indoor_Tomato_Garden_Diary

What you end up with is more leaf nodes (and subsiquently buds) in less space which allows you to pack more of the nugs into the brighter bits of your lamp's light sphere. You will veg out a very squat, massively bushy and large-leafed plant. When you throw the switch and go to 12/12 the new tops stretch away from the main stem and you let them go as long as they need to in order to get their own little spot in the direct light. As soon as the top is in an amiable location you supercrop the crap out of it, effectively freezing it in place. New growth at the top of it will quickly resume which will require its own treatment, but the previously treated sections will rarely stretch any more. I have had particularly vigorous plants that required multiple treatments at the same stem location, but eventually they, as even the ones needing only one treatment, harden up to the point that you can no longer crush them with your fingers at which point you let them be and move on to the new growth (there will be a lot of it!) This is why you should only ever use your fingers, never supercrop with a tool, it must be done by hand. It has its practical limits, if you don't dig sticking your head in your grow space every couple of days to fondle the ladies or simply have too many plants it isn't so great. I think it could benefit many growers though, give it a shot with just one plant, I kick myself for never doing a side-by-side pictorial comparison between supercropped and normal plants of the same strain, soil, lights, etc. Someone should do that for me!

Good luck and happy gardening!

-DM

 

[chubbynugs]

MH 45 days veg from clone. Supercropped.

 

[chubbynugs]

Most Sativa's are going to stretch anyway It's very difficult to judge with Sativa strains. I have never seen a 3' sativa every one I have grown was at least 5' tall. Way back in the day I only used HPS for veg/flower I never noticed a difference in stretch imo genetics play a big role in this. Here is a pic of Kali that was in veg until it was 8" then put in flower using HPS it grew stretched to 55" both plants are the same see the fan leaf on the right very big.

Yeah whats the deal with the big ol gaps between the nodes? I thought you were saying t5s veg your plants good. Doesnt really look like it to me. Not trying to trash your plants just could be tighter on the nodes with a proper veg.

 

[Hammerhead]

would not make a difference. This is a Kali mist 90% Sativa. Would have been the same using any other light its genetics you should know this. If you can grow better buds then this using MH vs T5 I use for veg. you must be the greatest grower I have ever spoken to. here are my T5 veged plants just a few there's 100's more .I think these will speak for themselves I would love to see a plant like those 3 at the bottom of this thread after 4 weeks using another light. Do you see any stretch on these lol it's genetics!!

 

[chubbynugs]

See now those look nice man. Still wont change my mind LOL. To each there own though man. All the sativas i have ran and i have only ran them outside there is tight nodes on them.Genetics or not you should of been able to get more nodes on that prior plant i think. Like i said i aint hating on t5s they will do the job but a 400 mh will dump out fatter plants. What type of sativa is that if you dont mind me asking?

 

[Hammerhead]

I have no issues with hidth I have 12'ceilings. Chubby you stated they where garbage
that's pretty hatin. I guess we will agree to disagree.


Those are Kali mist I have both Indica pheno and Sativs those are the Sativa and SUPER SILVER HAZE. In flower I have Super Lemon Haze in the first pic using airpot just finished veg I dont see any stretch.

 

[chubbynugs]

I seriously almost wanna buy you a 400 digi mh LOL. Maybe mine just sucks for vegging then. I know i bought the upgraded bulbs and everything. What brand is your t5? I just dont like how the fans dont get huge. Do you notice the same on any of your plants?

 

[Hammerhead]

I dont have any idea I just made sure the bulbs had 400nm wave length "Blue" I have a 400 im not using it I have 2 600 hps. Some plants I get masive suger leaf sometimes I dont Genetics and health of the plant100% INDICA will have very big leaf. 100 %Sativa wll have massive suger leaf. Hybrides not so much

 

[chubbynugs]

I dont have any idea I just made sure the bulbs had 400nm wave length "Blue" I have a 400 im not using it I have 2 600 hps. Some plants I get masive suger leaf sometimes I dont Genetics and health of the plant100% INDICA will have very big leaf. 100 %Sativa wll have massive suger leaf. Hybrides not so much

Must be my bulbs or something then cause i didnt get the greatest results for veg which is the main reason i bought a t5. I wanted to use my 400 for extra light in my hut not vegging. Maybe need to buy new bulbs and try vegging again with it.

 

[sparkjumper]

B.C I'm sure you've been around long enough to recognize a "forum standard" lol.This is when something has been repeated so many times people believe it has to be true.People will say HPS will stretch your vegging plants more than MH because its pounded into their brains lol.I have no doubt some people honestly believe there is a difference but I did too many strains too many times to believe it.I love the "forum standards"lol.

 

[moses224]

why would you want a sativa to stretch? it will without help.mu best sativas are short and tight nodes......use mh or hps with many cfl not hps alone unless thats all your wallet allows

Hawaiian snow sativa dominant 4 feet and short nodes...perfect example of mh

 

[smokeymacpot]

I grow sativas and sativa-dom hybrids and notice a huge difference in stretch between the 2 spectrums. It's night and day.

blue light helps a sativa stay slightly shorter when stretching, but they will if like most stretch like mad anyway.
if it becomes a problem, flower earlier, lst it e.t.c

for a normal indoor hybrid, you just put a lst'ed clone in veg under hps for a couple of weeks veg, then flip the lights and it grows into a monster.

comes down to what you want colour light you need, but maybe cmh would be more useful as you can go back to hps for just red light.

 

[Hammerhead]

Here you go the breeders with HS that Plant is 10' very normal stretch it's the genetics!!!!! Your plants look like you topped them That will decrease stretch. There plant looks just like mine.
http://www.youtube.com/watch?v=kfHJfg8XqH4

 

[sip]

lookin good ^


I use a digi 600 ballast & a sunmaster mH bulb to veg.....works for me, especially the temps.

T5's I only use to clone..but I grow trees so they wouldnt work for me in proper veg.