Friday, July 21, 2017

For the bonsai amateur, grafting is a technique with vast possibilities.


Why graft?

Grafting is used when plants grown from seed take too long to mature, don’t blossom in a reasonable time, nor grow true to type. Pine, beech, or red hawthorn is difficult to propagate from cuttings. Some plant vari-eties simply don’t have strong roots, so they are grafted on to stock that posseses this quality.

Natural response to a cut or wound.

With grafting, we make use of the healing ability of plants. The so-called Cambium layer helps to heal over cuts or other wounds. The Cambium is a one-cell layer that generates new tissue to transport liquids, for growth in girth and is situated between the sapwood, phloem and bark layers. Transportation of water and nutritious salts are to be found in the sapwood layer.

In the phloem layer the nuIn the phloem layer the nutritives produced by the leaves circulate downwards. When you graft, both the scion and the rootstock will develop cells that have a corky texture, called Callus. Under the influence of the Cambium layer the callus cells will grow over the bare face of the wound.

Read also: Bonsai on Postage Stamps: People's Republic of China (Mainland).

The healing is a gradual process, the rate being directly related to the health and growth of the tree. You can only graft plants that are genetically of the same species. A pine grafted on to hawthorn is impossible.


A Grafting knife.

With a good grip.You should have a (Crataegus monogyna) is selected very sharp knife because if the wound is untidy or according to thick-jagged the graft will take longer to hold. Some  material ness and root base.

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I use elasticised string because this is easy to work and the trunk is cut with. Another advantage is that it adjusts to the thick-very short, so that ening of the trunk and won’t bite into the bark.you can place the scion very close to Wax for grafting the root base.

For The Bonsai Amateur, Grafting Is A Technique With Vast Possibilities.Click To Tweet

As a result, when the I normally use wax which needs to be heated on a buds sprout they will stove. The wax should start to melt, but not allowed develop branches to boil or become hotter than 80 degrees Celsius low on the trunk because it starts to burn.

You can easily apply the wax on to the graft with a brush. Wax stops the graft from drying out and protects it from infections. I cut the is kept in a polytunnel or cold frame, you needn’t apply root stock the wax because the higher humidity can cause the graft to rot beneath the wax.

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Correct rootstock.

The rootstock should be free of viruses and fungi. Try (3) Here I try to fit to obtain trees with trunks of the same diameter and the rootstock with which are true to type. The root system should be the scion of a good and spreading. For this I use the hawthorn Crataegus ‘Paul’s species Crataegus monogyna or laevigata.

Grafting technique is shown below in the drawing Long matured shoots ofCrataegus oxya-cantha ‘Paul’s Scarlet’, which will be grafted on the rootstock of Crataegus monog- yna . Note the buds at the side of the shoots Obtaining fresh scions.

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