G'morning Kaktus.idn,
When you put scion on to peres did you give some press method ? And where you place them when grafting ?
I used told by some people here that when grafting cacti must avoiding sun light so when I'm grafting cacti I place them under my table
I do not give any pressuer on the scion.
Both stock and scion will shrink during grafting process and a gap formed between the stock and scion.
As the result, the grafting will fail in a normal grafting if there was no pressure on the scion.
I use very small scion and keep them in a 100% humidity box and so no shrinkage will occure on both stock and scion.
The above is the reason which I do not give any pressure on scion during grafting process.
I use 2 large plastic boxes for my grafting process.
One was shown before on the photo which can keep 18 stock, 4 days.
The other is also same size which can keep grafted scions and stocks, 18 sets 10 days.
Both boxes are covered by 50% shade cloths.
It is true that degrafting plant have issues in slow growing progress and little root ?
It is not true.
A degrafted cacti grow fine roots only, no tap roots.
Cacti grow by fine roots only. Tap roots do not affect on the growing speed.
The growing speed will reduce compared to grafted one but it is same as a normal own-root cacti.
Frank