light spectrum for clones?

[cflauto]

I have a 2700k and a 6400k cfl. My instinct says 6400k day light. But I have read something somewhere that said a the warmer spectrum promotes rooting and the clones yellow less. Any truth in this?

Thanks in advance.

 

[DixonCox]

I've been using cheap shop light fixtures with 6500k bulbs for quite a while now and it works fine.

 

[Andyo]

grow lux flouros

grow lux flouros

I root in a dew point cab in a cold room 15c or less because the cab can maintain 18c air temps and 25 c root zone this plus condition of mothers is the key root to shoot ratio temps
but yes red light promotes root zone.
my cabs did have cool white i changed after a year.
There was increase in rooting under growlux with the increased red.A

 

[Elmer Bud]

G`day CFL

My info says red for roots and flowers . Blue for stems and leaves .
Flower nutes low dose for the 1st few days after roots form . For P that also encourages roots .

Thanks for sharin

EB .

 

[harry74]

G`day CFL

My info says red for roots and flowers . Blue for stems and leaves .
Flower nutes low dose for the 1st few days after roots form . For P that also encourages roots .

Thanks for sharin

EB .

Red roots&flowers
Blue stems&leaves

Pink for hermies&nanners LOL
My apologies Elmer, I couldn´t restrain myself.
Thanks for sharing anyway

Blue is blue/ White light..

 

[Elmer Bud]

mixed spectrum is best for grows

mixed spectrum is best for grows

Red roots&flowers
Blue stems&leaves

Pink for hermies&nanners LOL
My apologies Elmer, I couldn´t restrain myself.
Thanks for sharing anyway

Blue is blue/ White light..

G`day Harry

Good to see you are amusing yourself Harry . But this is where the big boys play . The kindergarten is a cpl of URLs further down .

For CFLs and Flouros . Warm white = red . Cool white = blue .

Red spectrum + blue spectrum is better than one alone . For growing and flowering in my Experience . The more Sativa the more blue it likes .

Thanks for sharin

EB .

 

[cflauto]

Some great info. Thank you. I only have one light fitting, would changing the bulb so one day its red and the next is blue stress them out?
After doing more resurch, I believe my cab is too warm at 80f, Fingers crossed tho

 

[Elmer Bud]

G`day CFL

I don`t think alternating daily would help .
Use the red for cloning . Then veg with the blue , flower with the red .

I don`t do fahrenheit . About 20 -25 deg C is ideal . Humidity up about 75 / 80 % . Too hot and dry and your clones will wilt .

Thanks for sharin

EB .

 

[cflauto]

I too dislike Fahrenheit. But most the info out there is in F. Its about 26 degrees. but can get as high as 30. I've left the door open today

 

[harry74]

No problems Elmer.

I will stay with the people of my same mental level LOL

Greetings

 

[stoney917]

Honestly for clones light dont matter not very important .... main thing is keeping the rooting medium moist... i had shit root in the dark, undertables bathroom, kitchen under reg lights...... n 80 is fine colder temps like 72-75 takes longer

 

[Croptober]

Try a mixed spectrum I have a 6 bulb t5 I switched with 3 red and 3 blue the plants are loving it