The Haze discussion thread

[harvestreaper]

How you finding the quality of light dep haze types were you are harvest reaper say in comparison to indoor ?...looks like you manged to do that one quite good.

that plant was was grown by a friend it was a bit of an afterthought so the dep was started a lil late an the plant didnt finish as well as indoor had more body but more of a crash at end next year god willing therll try again with a better start /finish

 

[Piff_cat]

If you check out yo sammys grows I believe he starts off w 600 nearly 3 feet above the canopy. Hempy does the cool thing were he has the plants on outside edge. Spectrum, temp, leaf surface temp, humidity and vpd all seem to be considerations and important. In my experience lowland types like hazeA want a consistenly warm moist rootzone that isn't saturated or big swings in moisture. They like to be indirect light with higher humidity. While highland plants like hazeC prefer rootzone which fluctuates from saturated down to dry and back up again with lower humidity and more direct light. I think alot ofvwhat drives these preferences is altitude the plants come from. We are growing secondary metabolites here, not needed for survival but to react to abiotic stress. Altitude and drought are 2 conditions which up regulate transcription the most with cannabis. We're at a disadvantage since we don't have alot of info on the ladies true home enviorment. Best we can do is guess and check. When plant is nitrogen sensitive high leaf surface temp can make them absorb too much n too fast same as low humidity or low airflow. W sativas seems they use light as a signal more then indica. They don't require heavy light to form resin and density. Sometimes lower buds can be bigger then upper since they're in the sweet spot. Dimlux has a flir sensor hooked up to hps dimmer that allows you to set leaf surface temp and it dims when neccesary. Pretty cool

 

[Hammerhead]

No ones talking about changing the light spectrum its about reducing light intercity.

Doesn't matter. If you want less intensity use a lower wattage bulb with HID. When you dim HPS/MH their spectrum changes and not in a good way. It also kills bulb life.

 

[Donald Mallard]

If you check out yo sammys grows I believe he starts off w 600 nearly 3 feet above the canopy. Hempy does the cool thing were he has the plants on outside edge. Spectrum, temp, leaf surface temp, humidity and vpd all seem to be considerations and important. In my experience lowland types like hazeA want a consistenly warm moist rootzone that isn't saturated or big swings in moisture. They like to be indirect light with higher humidity. While highland plants like hazeC prefer rootzone which fluctuates from saturated down to dry and back up again with lower humidity and more direct light. I think alot ofvwhat drives these preferences is altitude the plants come from. We are growing secondary metabolites here, not needed for survival but to react to abiotic stress. Altitude and drought are 2 conditions which up regulate transcription the most with cannabis. We're at a disadvantage since we don't have alot of info on the ladies true home enviorment. Best we can do is guess and check. When plant is nitrogen sensitive high leaf surface temp can make them absorb too much n too fast same as low humidity or low airflow. W sativas seems they use light as a signal more then indica. They don't require heavy light to form resin and density. Sometimes lower buds can be bigger then upper since they're in the sweet spot. Dimlux has a flir sensor hooked up to hps dimmer that allows you to set leaf surface temp and it dims when neccesary. Pretty cool

huh ,
haze a is lowland and haze c is highland ,
how do you get that , i thought they were the same batch of seed ????

analogies being made about how sativas are sensitive to strong , intense light in this thread is only true with indoor lighting ,
they are not sensitive to the strong tropical sun,
they are always grown in full sun ,definitely not in the shade ,
and its about as strong as it gets where they hail from , extreme uv and light intensity ....

we dont really do much Christmas stuff at my house ,
but hope all that do are having a good day .... ho ho ho .... (tomorrow of course for many here )

 

[@hempy]

Look i have grown real tired of the bitchiness and continuing baiting and arguments by some members in this thread.

We are talking sativas being grown indoors and if we are going to talk sativas being grown out doors then lets but dont act like its the same as its not.

Out doors in Autumn and winter the sun is less intense than it is in summer as a result of the sun being further away from the earth.

Even in the tropics the sun at a set time of year is less intense as the earth tilts go research it that is a fact. You also have cooler temps.

Hammer you making it up as you go ?.

How would dimming a light change the lights spectrum ?.

Originally posted by Hammerhead View Post

Dimming LED doesn't change the spectrum as it does with HPS/MH. I've never noticed any plant issue when dimming was used with CMH.

 

[Hammerhead]

Look i have grown real tired of the bitchiness and continuing baiting and arguments by some members in this thread.

We are talking sativas being grown indoors and if we are going to talk sativas being grown out doors then lets but dont act like its the same as its not.

Out doors in Autumn and winter the sun is less intense than it is in summer as a result of the sun being further away from the earth.

Even in the tropics the sun at a set time of year is less intense as the earth tilts go research it that is a fact. You also have cooler temps.

Hammer you making it up as you go ?.

How would dimming a light change the lights spectrum ?.

Why do you even ask?.. Go look it up yourself. If you really wanted to learn you wouldn't be asking in such a way. Nothing I post will register to you.. As always only you read what is posted as something Negative. No one is baiting you. Its why I just ignore most of what you post. It's not worth the constant drama you create.

 

[Donald Mallard]

Look i have grown real tired of the bitchiness and continuing baiting and arguments by some members in this thread.

We are talking sativas being grown indoors and if we are going to talk sativas being grown out doors then lets but dont act like its the same as its not.

Out doors in Autumn and winter the sun is less intense than it is in summer as a result of the sun being further away from the earth.

Even in the tropics the sun at a set time of year is less intense as the earth tilts go research it that is a fact. You also have cooler temps.

Hammer you making it up as you go ?.

How would dimming a light change the lights spectrum ?.

in bold is the exact point im making , just so folks are clear because unless its mentioned,
things can get a bit skewed and misunderstandings occur ,

bitchiness and arguements ???,, im not seeing those ,
certainly not in anything i have written , i have been clear and concise,
and not argued with anyone , you do tend to try to create drama though mate ,
just let things go on how they go and there shouldnt be any ...
get a bit of eggnog into ya or something. its just a discussion ....

quite correct that as the earth tilts the other way we get cooler temps here ,
the point i was trying to make was the light is still very intense even during those times particularly compared with indoor lighting,
so its not intense light the plants are complaining about indoor, its the type of light and the proximity to that artificial source ,
not specifically intense light, because they can definitely handle that from the natural source ....

 

[RoyalFlush]

in bold is the exact point im making , just so folks are clear because unless its mentioned,
things can get a bit skewed and misunderstandings occur ,

bitchiness and arguements ???,, im not seeing those ,
certainly not in anything i have written , i have been clear and concise,
and not argued with anyone , you do tend to try to create drama though mate ,
just let things go on how they go and there shouldnt be any ...
get a bit of eggnog into ya or something. its just a discussion ....

quite correct that as the earth tilts the other way we get cooler temps here ,
the point i was trying to make was the light is still very intense even during those times particularly compared with indoor lighting,
so its not intense light the plants are complaining about indoor, its the type of light and the proximity to that artificial source ,
not specifically intense light, because they can definitely handle that from the natural source ....

Wouldn't MH & CMH be a better light source for these equatorial sativas? If the sun is always blasting like it's summer in those regions the lighting spectrum and UV out put would be similar to MH/CMH lights vs an HPS.

 

[Donald Mallard]

i found better results with mh over hps when i grew them indoor eons ago ,
imho they preferred that spectrum ,
i noted some of the new led lights did a pretty nice job though ,
some of the best indoor sativa ive seen are in recent times ...

 

[RoyalFlush]

Look i have grown real tired of the bitchiness and continuing baiting and arguments by some members in this thread.

We are talking sativas being grown indoors and if we are going to talk sativas being grown out doors then lets but dont act like its the same as its not.

Out doors in Autumn and winter the sun is less intense than it is in summer as a result of the sun being further away from the earth.

Even in the tropics the sun at a set time of year is less intense as the earth tilts go research it that is a fact. You also have cooler temps.

Hammer you making it up as you go ?.

How would dimming a light change the lights spectrum ?.

Hammer is correct. Lowering the wattage on a HID bulb will change the spectrum, now it's not going to turn an HPS into an MH, but it will murky/mud up the spectrum into a less efficient one.

Example: A 400w MH running at full power gives you a cool white spectrum, now lowering that MH to run at half (200w) capacity will give you a murky Violet blue spectrum that's less efficient/effective than the cool white. The same can be said for HPS.

The only way to keep an optimum spectrum and lower the intensity on a HID bulb would be to change the bulb completely for a less wattage bulb.

I do agree with you on Pure/heavy leaning Haze/Sativas not needing to be close to the bulb.

P.S Please don't take this as a personal attack.

 

[yesum]

If you are bleaching and frying the tops, then I think that is too much. If yield suffers, well I could not care less. I run low wattage LED lights but if you get them close to the plant and keep the canopy down short, then it is enough to get intense light into it.

Not sure why I would start a plant at 12/12 or like that and then slowly reduce light hours. I am lazy too so that figures into it. I figure 9/15 right off and shorten the damn time spent. I am not buying into it being too 'unnatural', but your mileage may vary.

 

[Alpenglow]

Funny how quick it turned from "dim LED instead of training plants" into something different when you agreed with each other before
No one said shit, but everybody is checking soles ...

 

[CannaRed]

Why can't all of us be right?
some hazes indoors keep running under strong lights.
some hazes indoors dense up perfectly under strong lights.
Hazes outside don't do this.
It seems we are all seeing the same results but want to describe why in different ways.

I also throw this out. I still have a blurrple tent. Those haze hybrids I did, came out excellent under the blurples. 600 real watts. ​​​​​

 

[JohnnyChicago]

In California, on average, July is the most sunny month with 364 hours of sunshine.
Sevilla, Spain 360. (july)
Bangkok, Thailand 273. (january)
Medellin/Bogota, Columbia 200. (april)
Cambridge, UK 188. (july)

 

[Hammerhead]

HID bulbs use an ARC tube filled with a specific gas mixture to get the desired spectrum at full power. When lowering the wattage the ARC tube burns cooler which creates a different spectrum. I prefer CMH to HPS. Today's LEDs are very good. My flower room uses a LED/CMH mix. My plants always look better closer to the CMH lights. Im still tweaking LED to get the same results.

 

[LostTribe]

They loved bare bulb vert Horti super hps and also LED. LED were denser just like indica's but also smaller due to LED.

Aside from trash timers they were loving hydroponics just had to keep the ec down as they are getting consistent dosages several times daily. Anything above .9ec and some tips were burning and towards the end I just let them go and do there thing. Overall the HPS and Hydro kept them healthier but timers caused reveg, not perfect for comparison but something to report non the less. I would probably try to find a lower N nutrient for any other hydro runs though. This was done on some leftover maxi bloom I just happen to have. They did not like the PBP.

 

[Piff_cat]

https://www.growweedeasy.com/too-much-light

Here's a great article on the concepts if anyone's interested in learning and improving. Love when ppl act like botany doesn't exist.. less bro more pro

 

[@hempy]

Summary

Dimming full spectrum white LED has a very small impact on spectrum shift. This impact is so small that it can be ignored for Horticulture application.

https://horticulturelightinggroup.com/blogs/news/does-dimming-led-change-spectrum

Now to HPS and MH.

Dimming does more than darken the room; it shrinks the overall effectiveness of a custom light spectrum. Light spectrums are specifically designed to provide the right wavelengths of energy for your plants. A dimmed light won’t provide the same exclusive spectral distribution and can change the quality of plant growth.

It dose not change the light spectrum but more shrinks it.

I have never heard of any one dimming a HPS or MH or these grow lights even having a dimming option on the lights.

 

[CosmicGiggle]

Look i have grown real tired of the bitchiness and continuing baiting and arguments.....

Peace on Earth, good will to men

 

[@hempy]

Peace on Earth, good will to men

Merry Christmas Cosmic hope you have a great day lets hope for a better world for 2022.