ATTEMPTING GERMINATION OF ONE MATURE ROSE EMBRYO IN A 10% DILUTE NPK FERTILIZER SOLUTION + DARKNESS

General Discussion
1

I took the initial success of the previous dilute NPK solution experiment (see above), one step further a few days ago:

I decided to plonk a newly extracted OP Iceberg embryo in a glass filled with a solution of 10% X(full strength) N-P-K fertilizer solution, AND also put this glass container immediately in a dark cupboard.

I had three basic questions that led to this experiment:

  1. Can embryos liquid-germinte in a dark cupboard?

  2. How much dilute N-P-K solution can these things take?? LOL!

  3. Can the darkness cause a real reduction in the % of cases showing “radicle blunting” and promote more cases of rootlet formation?

Anyway, here is how it looks today, a few days into this dark + fertilized liquid treatment:



Now back into the cupboard!

2

Here is is now, ~24 hrs later.



I just sowed it in seed raising mix, I am guessing it has started a good rate of “radicle extension”?

From tomorrow, I’ll water the pot once daily with the 10% X (full strength) NPK diluted fertilizer (I’ll put some of this solution in the hand mister and spray the surface to keep it all moist…trying not to apply too heavy a watering which might sink it too low below the surface of the mix).

I think it has been in the dark+fertilizer solution environment for just under one week now (didn’t keep record, close enough anyways!).

3

Pictured this morning (just over one week since sowing it), here is the above embryo germinating above the surface of the seed raising mix. I have continued to apply daily 10%X(full strength) N-P-K fertilizer solution to it all this time in the seed raising mix:



By its current rate of growth, this one looks like it will be fully up in the next 24-48hrs.

I am going to continue the once daily application of the diluted fertilizer solution to this seedling.

4

BTW…the N/P/K ratio of the soluble fertilizer I have been using throughout this thread = 15N/4P/26K.