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Author Topic: another shot at grafting to pereskiopsis...  (Read 14475 times)

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Offline Inyan

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Re: another shot at grafting to pereskiopsis...
« Reply #15 on: March 07, 2015, 08:16:48 PM »
Your bottom end graft looks to be lifting up. It is likely that there is still some connection on the other side though so while not perfect... don't disturb it too much and the connection should grow thicker and in doing so prove stable enough to allow it to grow some pups for you. As for methods to deal with the odd rooted end. Grabbing the rooted end in your cling wrap or parafilm and holding it by that end while gently securing it to the top of your Pereskiopsis will allow you to pull down on the sides while holding your scion in place. Your doing good. Practice with inanimate objects of no account before your next attempts if you like as it will improve your skills in wrapping as there will be no pressure or time limit. Parafilm is hands down my favorite grafting material though as it sticks to itself, stretches, and breaths. You can leave it in place without fear of damaging your scion. A trick you can use with parafilm and those pesky bottoms is to place a pencil into the middle of the parafilm and pull the parafilm over the pencil to stretch it out. When you remove the pencil you will have a nice indentation that your scion bottom will sit inside of nicely. You will still have to hold it still, but it works nicely as it pulls snug and sticks to itself so if made slightly too big it will correct itself once your fingers compress the parafilm around it to hold your scion secure to your stock. Coban is better in many ways than cling wrap and worse in others. With coban you run the risk of putting too much pressure on your scion and it can easily detach a seedling as it conforms to the odd contours of seedlings a bit too well without wanting to release its hold sometimes. I feel like I may be getting you more lost than you need to be... as your grafts are really good as they are. If your striving for perfection an investment of 5 dollars in parafilm would help get you to that point a lot quicker.
For those that graft...
Every areole is a cactus waiting to be born

Offline Chief BigTittyFlapFlaps

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Re: another shot at grafting to pereskiopsis...
« Reply #16 on: March 07, 2015, 11:06:46 PM »
the bottom graft is off completely now.  it's planted in the container with the grafts that took.  i will be buying some parafilm...  the saran doesn't seem to breath or stick all that well.  that combined with my misting blunder certainly spelled disaster.  at least i ended up with a couple.  thanks for the tip on grafting the bottoms.  that should work nicely. 

Offline Inyan

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Re: another shot at grafting to pereskiopsis...
« Reply #17 on: March 08, 2015, 12:17:13 AM »
Once you've tried parafilm you won't want to use anything else. You can buy cheap rolls for grafting at about $5 dollars a roll. Or you can spend a little more and cut it as you go. If your going to be grafting on a large scale you'll want to buy the grafting tape rolls . If your talking about just doing 10 or 20 grafts each time then cutting as you go is easy enough with the laboratory parafilm. http://www.orchardvalleysupply.com/ovsstore/pc/Parafilm-Grafting-Tape-p278.htm
or if you'd rather cut...
http://www.2spi.com/catalog/supp/parafilm.php

For those that graft...
Every areole is a cactus waiting to be born

Offline Chief BigTittyFlapFlaps

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Re: another shot at grafting to pereskiopsis...
« Reply #18 on: March 08, 2015, 09:28:36 AM »
i remember the orchid valley supply link from before.  i'll try to get some of the rolls here by spring.  i don't want to mess around with cutting this stuff. 

Offline Inyan

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Re: another shot at grafting to pereskiopsis...
« Reply #19 on: March 08, 2015, 01:39:58 PM »
Cutting this stuff is not that hard, but its definitely slightly easier and much faster when doing many grafts to get the tape.

https://www.youtube.com/watch?v=l05VBheNHr4
For those that graft...
Every areole is a cactus waiting to be born

Offline Chief BigTittyFlapFlaps

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Re: another shot at grafting to pereskiopsis...
« Reply #20 on: March 09, 2015, 09:26:50 PM »
She makes that look really easy.  I will make sure to put that song on next time.  i fumbled out another couple with Saran tonight...  I kept knocking the scions off while trying to apply the Saran so I ended up just bagging them like before. She grafts lower than I thought you could.  I thought you could only graft up near the tip?

Offline Inyan

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Re: another shot at grafting to pereskiopsis...
« Reply #21 on: March 09, 2015, 11:25:35 PM »
As long as its not woody you can use it to graft and the tip is never woody so its always a safe bet. But yes, you can graft lower down than just the tip.
For those that graft...
Every areole is a cactus waiting to be born

Offline Chief BigTittyFlapFlaps

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Re: another shot at grafting to pereskiopsis...
« Reply #22 on: March 10, 2015, 06:23:09 PM »
ok.  i once watched this video where this guy said that you must always graft to a growing tip…  i just assumed there was some different cells in the very tip that you needed to somehow utilize.  i guess he just meant new growth. 

Offline Inyan

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Re: another shot at grafting to pereskiopsis...
« Reply #23 on: March 10, 2015, 08:12:56 PM »
New growth is much easier and faster to graft to in most instances. So, that much is correct. The cells are in an active state of dividing... a much faster rate than lower down and growth hormones are more concentrated there. So, yes... it is better in general to graft higher up on your stock. However, if your seedlings are too large or would work better lower down then that is always a judgment call that you have to make. Its not that you can't get a graft to work further down... just that it will tend to be slower at first than a graft higher up. Again, if the material is too woody your looking at a graft that is not going to look pretty if it does take. You don't need half of the tools I've given to you if you want to make decent grafts. However, if you utilize the best techniques... parafilm, humidity, active growing tips, etc. then your grafts will have a much higher chance of success each and every time and what is more important is that you won't have to worry about contaminants, drying out, or pulling away from the stock plant as much. Suffice it to say, I rarely listen to all of my advice, but when I fail to do so I often kick myself in the butt for not doing things the better way.
For those that graft...
Every areole is a cactus waiting to be born

Offline Chief BigTittyFlapFlaps

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Re: another shot at grafting to pereskiopsis...
« Reply #24 on: March 11, 2015, 06:30:17 PM »
cool, that clears things up nicely.  if you have already answered this I'm sorry, but i wonder how the size of the graft affects the growth rate of the scion?  meaning if you were to graft to the top of a 10 foot cactus would that cactus be pushing ten feet of photosynthesis into the scion?

Offline Inyan

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Re: another shot at grafting to pereskiopsis...
« Reply #25 on: March 11, 2015, 10:24:11 PM »
Root mass and quality is more important than size of the cactus for getting your grafts to take off. If the root mass is large and can take a heavy watering... that is far more important than having a 10 ft. unrooted cactus to graft on. Where you get an advantage with a 10 ft. cactus is that it has more energy to devote to getting a larger root mass faster than a smaller cactus. I imagine that is why they call it the rootstock and the scion.... as it is the root stock that is superior in size and or quality to the scion. Rootstocks may also influence the resulting phenotype of a plant. Such as when a dwarf root stock is used to dwarf an otherwise normal in growth scion. One theory as to how this works is based on the transfer of microRNA from rootstock to scion. Mind you that is just one theory. What is known about rootstocks is that somehow they can transfer traits such as greater high, shorter height, disease resistance, etc. to the scion. I don't know of any literature on the subject, but I have talked with a number of grafters and some claim that even color can sometimes be altered over time with some species over time... simply by repeatedly grafting to a stock that has the same desired color. The fact that rootstocks can influence the genetic expression or phenotype of plants/cacti has been known for a long time. One area that interests me is grafting two very closely related cacti or plants together in the hopes that their shared effects on each others phenotype/genetics may allow less compatible pollen to have a higher success rate or perhaps even help with getting through prefertilization or postfertilization barriers....
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3277459/
For those that graft...
Every areole is a cactus waiting to be born

Offline Chief BigTittyFlapFlaps

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Re: another shot at grafting to pereskiopsis...
« Reply #26 on: March 21, 2015, 10:23:10 AM »
…so what if you had two cacti both with very well developed root systems and one was grafted at 1 foot and the other at 4 feet.  would this have any bearing on growth rate?  I'm trying to understand if the suns energy is captured by the scion alone or does the entire plant collect and push that energy into the scion? 

Offline Chief BigTittyFlapFlaps

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Re: another shot at grafting to pereskiopsis...
« Reply #27 on: April 04, 2015, 11:14:08 AM »
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