Split joint, all instructions

Split joint, all instructions

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Instructions for doing theEnglish split graft, single split or double split graft. Crown graftTips for citrus, vine, cherry and other plants.

Lgrafting split it is one of the most used cultivation practices for the propagation of both ornamental and fruit plants.

When to do the split graft: right time and moon

The best time to proceed with thesplit graft runs from mid-February to the end of March, preferably on a waning moon.

If it is not possible to consider a waning moon phase, grafting must be performed in the same moon phase as the scion collection. But let's see in detail how to perform a split graft, following our instructions.

Types of split grafting

There are several types ofsplit grafts.

  • Double split English coupling
  • English split graft (also called simple split graft)
  • Crown split graft

L'crown graftit is used when the rootstock has a large stem.

L'English double split graftpresents greater chances of taking root but, on the other hand, it is more difficult to implement.

L'simple split graftor English split graft, is the most suitable for beginners. On this page we will see how to do the split graft in its various variants.

Crown split graft, how to do

As stated, thecrown split graftor crown graft is used forgraftson larger plants.

  1. Make a 4 or 5 cm deep gap on the branch of the plant that must act as rootstock: choose a straight and vigorous branch appropriately deprived of its plant parts in order to facilitate grafting
  2. Make oblique cuts on the scions in order to obtain a pointed and smooth apex with the greatest amount of live wood exposed: it is important to obtain a wedge shape in the lower part.
  3. The scion thus processed is inserted at the ends of the split in such a way as to make its shape coincide with that of the rootstock.
  4. Insert the first scion into the cleft like a pen: the bark of the scion and the rootstock must match perfectly.
  5. Precede with the second scion in the same way
  6. Anchor the scions to the split by tightly tying the rootstock with wet raffia or electrical tape starting from the bottom up so that water cannot penetrate into the side wounds
  7. To avoid the onset of diseases, cover the exposed part of live wood with grafting mastic.

Crown split grafting: taking the scions

  • In thesplit trigger 2 slips are needed which must be taken from branches that are at least one year old with well swollen and healthy buds.
  • Take the scions from the mother plant a few days before grafting and store in the fridge at 4 ° C. Alternatively, they can be buried in the sand or taken on the spot if conditions permit
  • To facilitate the opening of the cleft on the rootstock in order to insert and position the scions correctly, you can use a slotted screwdriver to be used as a spreader wedge.
  • Make sure that the knife is sterilized and well sharpened: the grafting knives are specially designed to make cuts in the bark and match the line of the scions with that of the cleft.

Crown split grafting: tips

Be careful not to let the mastic enter the cut on the rootstock in which the two scions have been inserted, as you risk compromising the taking root of the graft. In this regard, it will be sufficient to spread a veil that covers and closes the cut so that no water enters it.

Simple English split or double split, how to do it

So that thesimple English split graftcan take root, it is necessary to have scions and rootstocks of the same diameter, so be careful to pick up plant material suitable for the rootstock. This premise is valid both for doing thesimple split graftboth to do thedouble split graft.

For the binding of the scion to the graft holder it is good to use raffia or insulating tape for grafting firmly. When, in summer, you go to remove the insulating tape, you will need to protect the graft with a special putty.

In thedouble split graftat about one third of the section plane of the cut, both of the scion and of the rootstock, a further cut is made, almost longitudinal. This second cut forms a sort of tab that allows a good joint between the scion and the subject, increasing the chances of taking root.

To increase the chances of taking root, the two parts of the plant must adhere perfectly. This concept holds true forcrown graft, split graft and double split graft(actually it is valid for all types of grafts!).

To ensure excellent adhesion, use an insulating tapeelasticin order to tighten the two elements well. To get an idea of ​​the product to choose, I would like to point out the biodegradable elastic adhesive tape offered on Amazon at a price of 8.99 euros, for a roll of 100 meters, the price includes shipping costs.

Useful link from Amazon: Biodegradable elastic adhesive tape

Another useful purchase to make is grafting mastic. In this circumstance, we would like to point out the Zapi mastic for grafts supplied with a special brush / applicator ... however now all mastics and waxes for grafts are enriched with healing agents and specific substances to ensure the engraftment of the graft.

Useful link from Amazon: Zapi Grafting Putty

Split grafting on citrus, cherry and other plants

To graft specific plants, we point out the guides:

  • grafting of citrus fruits
  • cherry grafting

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