Some of my plants don't like LED

[NaturalFarmer]

Read up , maybe it will help you understand what light plants need, because you seem to have a lack of understanding.

How to win friends and influence people by Dale Carnegie. Great book. Exceptional. Masterpiece. Changes one's life.
http://images.kw.com/docs/2/1/2/212345/1285134779158_htwfaip.pdf

 

[Yodaweed]

Blue is needed and used in flower.

PREACH brother. Blue pushes chlorophyll production.

 

[whitebb2727]

PREACH brother. Blue pushes chlorophyll production.

The cheap no name 6500k bulbs that came with my t5 produced some frosty potent bud. A little less in the yield department but made up for it with quality.

Most bulbs in the 5000-6500k range produce enough red anyways.

 

[NaturalFarmer]

 

[TheSkyway]

Lol this thread got informative gents

Again, I'm going to run it with just the veg switch on (blues) and see how things go. I also have it about 3 feet above the canopy

 

[PetFlora]

@Yodaweed
Plants cannot utilize full spectrum
View attachment 3862898

The pseudo-science that was proffered back when there were no reasonably priced white diodes, so the carpetbaggers introduced burple lights for horticulture. They're OK for non fruiting plants, but even then, white is better for the plants AND for the growers eyes

https://www.heliospectra.com/blog/reduce-carbon-footprint-led-lights-indoor-cannabis-production

 

[ismann]

I think you are misrepresenting the graph. Where on the graph is photosynthesis driven the hardest with both chlorophyll a and b? How many nm? Which color do those two points produce?

There is more to plants than just photosynthesis. There is also photomorphogenesis which control auxins, flavins and have nothing to do with chlorophyll. Plants have many more light sensors (phytochromes, cryptochromes, phototropins...) which receive different wavelengths not just a few spikes.

 

[NaturalFarmer]

There is more to plants than just photosynthesis. There is also photomorphogenesis which control auxins, flavins and have nothing to do with chlorophyll. Plants have many more light sensors (phytochromes, cryptochromes, phototropins...) which receive different wavelengths not just a few spikes.

Does a plant not create Auxin if it is exposed to only blue and red? Is UV within that PAR graph? Correct me if I am wrong, but isn't there a reason people use green lights during flower?

 

[NaturalFarmer]

The pseudo-science that was proffered back when there were no reasonably priced white diodes, so the carpetbaggers introduced burple lights for horticulture. They're OK for non fruiting plants, but even then, white is better for the plants AND for the growers eyes

https://www.heliospectra.com/blog/reduce-carbon-footprint-led-lights-indoor-cannabis-production

Goof find. Good info I stand corrected.

 

[NaturalFarmer]

Still don't know if having the ability to detect green light correlates to needing it. Doesn't sound like efficient use. A tool for the box maybe.

http://www.heliospectra.com/sites/default/files/general/What light do plants need_5.pdf?utm_source=BlogAboutGreenLight&utm_medium=BlogPost,PDF&utm_campaign=PDFGreenLightPhotsynthesis