Napthyl Acetic Acid

[zynah]

Please advice Napthyl Acetic Acid induces flowering in Orchids,

[Ray]

It doesn't.

Naphthalene acetic acid is a synthetic hormone (auxin) that can induce the growth of branch root tips. As the root tips grow, they produce cytokinins that cause cell elongation, and if the lighting and nutrition is correct, growth.

Combined, the can lead to a stronger plant that can have better blooms, but it is a very indirect connection.

[RosieC]

I don't have much knowledge on this but my understanding is the same as Ray's.

I've moved this thread to 'Scientific Matters' as it is not really an introduction thread.

[Stray59]

Zynah:
Interesting question - where do you get this?
Steve

[professor plant]

As Ray mentioned, I also believe the connection to bloom production is quite indirect at best. Its kind of like saying, if I buy really nice running shoes, I can run a lot faster. My experience when using rooting hormones is they are not normally necessary with good orchid culture in translanting, ect.

If a paph has a poor root structure, I may use it lightly. I will not use it on Pluero's and other miniatures.

[Ray]

Not only can they be used to enhance root growth, and overall growth in general, if you have a reliably potent solution, and are willing to do some experimenting, you can apply the hormones with specific timing to achieve some "modification" of your plants.

For example, if your application is coincident with the emergence of flower spikes, you may get them to elongate. That can give a taller spike for paphs (sometimes a good thing), or to "unbunch" a too-densely packed inflorescence. It can also lead to unwanted "legginess", if applied at the wrong time.

Again, if you wait until flower buds are about several days from opening, and application can lead to larger flowers. How "several days" is defined, is up for experimentation.



Ray Barkalow
Sent using Tapatalk

[zynah]

Two days before i aply it in a ratio of 1 milli per 1 ltr of water as an expiremental basis. Some of my Dendrobiums are healthy but they are not bloomed So that i applied this. Can i give N P K 6.12.36 at a ratio of 2gms per litre now.if i apply this there may be any reactions.

[professor plant]

Thanks Ray for the advice. I had no idea I could use it in that way. Of all the many years I have had about conversations about growing plants, I have never heard of using rooting hormone in this way. Do you have any further detailed information regarding bloom effects on orchids?