Decided to do another graft of an Izavan chimera offset which had been grafted and has supplied scions for other grafts done.
The large piece of the removed offset is left deliberately to see if it too, produces more offsets.


The main thing I am attempting to do is to determine whether the other scions on the rootstock used, are in turn affecting the growth rates of future scions.

Cheers

An illustration of the importance of rootstock selection.


Both grafts were done the same day, one used a hybrid Cereus clone, the other a scion of a Cereus repandusxSoehrensia huascha on the same hybrid Cereus clone used for the top photo.
Cheers

Did a trial V hypocotyl seedling graft to a Cereus rootstock.

First up determined the angle of the vascular connection between the Areole and the central vascular system.

To determine this I sliced through a mature portion of a stem.


The angle is approximately 15 degrees.

Then used the V cutting tool to remove just the Areole, drilled a small hole in the direction followed by the connection to the central vascular system, prepared the scion and inserted.it.

Added a hold down.


Object of the exercise was to try and reduce the major trauma such as shown below.


Cheers

Removed the tiedown on the trial V hypocotyl seedling graft to a Cereus rootstock today, happy with the result no sign of any desiccation.

Will leave it for another week and start to slowly move it to a vertical position.

It has encouraged me to move to the next stage and V graft a mature areole.


The black dot was to make sure the areole was not placed upside down.

Found it necessary to use some spines to hold the scion whilst applying the tiedown, it moves too readily.

Will remove those spines tomorrow when things have settled down.

Cheers
Update 13/11/21
All grafts ultimately failed, needs a rethink.

Today is twelve days since I started a grafting trial using different materials to determine the best in a field situation.

26/11:30am 40.7°C to 26/06:00pm 41.1°C, >40°C peak 26/01:30pm 43.0°C
25/12:00pm to 25/06:00pm >40°C. peak 25/03:30pm 43.3°C
From: Gingin Airport Met Approx. 12.5 km away.

As I expected, the Cutting powder graft failed, thought the Talcum power used as a carrier, would interfere with attachment.

The Willow Tea graft is hanging on but could fail.

The Pereskiopsis leaf produce the best result of the three grafts.

Did another two of those just to confirm the outcome.

Cheers

I am very happy to say that a Friend has offered to send me some Pereskiopsis cuttings. That means I can finally do some Seedling grafting.

@ausrpned
Have you tried the Super glue method? I have been unsuccessful using that method.

Aeonium2003 said:I am very happy to say that a Friend has offered to send me some Pereskiopsis cuttings. That means I can finally do some Seedling grafting.

@ausrpned
Have you tried the Super glue method? I have been unsuccessful using that method.

I seem to recall in the dim past I did, think the problem was the Superglue entered the area(capillary action) where union was supposed to take place.

There is an excellent site in Nederland where I picked up a lot of useful info.
DRCEVNL.

I did use the Schlumbergera a fair bit but most of my grafting has been in the field and have only recently thought of the method I am trialling at the moment.

I no longer have an email address but I seem to recall the chap's name was Ruud.

In his videos he mentions the use of Pereskiopsis leaves if he feels there is not enough "tack" to hold down scions.

It is only recently I came across the use of A. vera in marcotting which made me wonder whether the Pereskiopsis leaves may have some usefulness.

Am putting up a post to show the progress so far, most pleasing.

Cheers

Just an update on https://garden.org/thread/view....

Am really impressed with the progress so far, have not seen this rate of growth of scions since I grafted Eltu to a "Lollipop" rootstock some years ago.

The recent warm spell did not slow things down at all.

Notice one of the scions has produced an offset already.

Just trialling the Pereskiopsis grafts on Purple Haze, looks promising.

Cheers,

Fabulous! I love these experiments!

purpleinopp said:Fabulous! I love these experiments!

Good, hope you do some yourself, many hands make light work!

Did a graft using the technique yesterday, my hybrid Sjaan to one of my hybrid hylo's.

Will give it a week to before posting a photo, so far so good.

Been a 10Liter day here today, quite strong winds, it's still in place and looking healthy.

Cheers.

An update and new test of the versatility of grafting with Pereskiopsis Leaf contents.

Pleased with progress of the original trial.

This is a graft of my Epi Sjaan on one of my hybrids. It has survived some very warm temperatures and hot winds, think it highly likely to be successful.

Tried a larger scion first but the wind blew it off, this one has survived.Pereskiopsis is not my first rootstock of choice, only used as backstop.

The glochids are a problem, pity I only have one clone, badly need another to see if a non-glochid can be bred.

Update 6th February 2022:
The graft has failed.

Cheers.

Fascinating!

Pity, I would have offered to send pollen of another clone, but the glochids are EVEN worse.

I like the looks of that Pereskiopsis graft (happy cactus!) but I must agree, the glochids are annoying. Like stealth ninja spines that sneak out and bury themselves in your body, only to be discovered hours later. I have an awesome illuminated magnifying glass thing that I use to extract them, along with precision tweezers that live in a little tube so they don't lose their perfect tips.

It is hard to find those things even though you can feel them so well. Kind of an odd defense because you don't notice when they get stuck in/on you, just later on.

I'm currently experimenting with grafting to pereskiopsis. It seems the grafts need a higher humidity level then on the other stocks I've been using.

Aeonium2003 said:I'm currently experimenting with grafting to pereskiopsis. It seems the grafts need a higher humidity level then on the other stocks I've been using.

Am beginning to come to the conclusion Pereskiopsis needs to be grown in a high humidity environment so the rootstocks are "sappy" when used.

Will do a trial to see if there is any substance to the speculation.

Cheers

Have grafted an Epi scion to one of my Hylo's using Pereskiopsis leaf contents.

Did another Hylo seedling graft to an adjacent shoot.

Both scions, under the current weather regime, took 10 days to show obvious new growth.

Further am finding the Purple Haze Hylo a useful rootstock as well
Cheers.

New growth on the selenicereus and weedy pereskiopsis stocks.

Have one outstanding scion at the moment.

It was grafted after the good result in the trial grafts.
The scion I am training to attach to the support, had an offset, so in total the initial scion approximately 6->8mm in height has produced 665+320=985mm of growth which compared to the largest growth of a trial scion, initial scion shoot plus it's offset, 385+345=730mm, is impressive.

Hoping to have the scion reach the first branching of the support and, fingers crossed, perhaps will flower next Season.

Have found there are incompatibility problems in some cases, for example the batch of seedlings I am using though they appear to form a union with H. ocamponis there is no growth of the scion.

I think I've found the answer to permanent marking. The previous best solution was cumbersome as it required mains power, the new solution is like using a pen, much better.

Cheers.