Graft - Compatibility And Incompatibility, Advantages Of Grafting, History And Important Examples Of Grafting, Disease Resistance
cut plant stem method
A graft is a horticultural term for a bud or shoot of one variety or species of plant that is positioned on the stem of another, compatible plant, in such a way that integrated growth results. The recipient plant is called the stock or rootstock, and the grafted part is referred to as the scion. A simple method for stem grafting involves both stems being cut with a sharp blade at the same acute angle, in order to maximize the area of contact. Then the stems are joined, and the union is bandaged with waterproof tape (or tape plus wax) until the wound has healed. Variations on this method involve complementary notches and the tongue being cut, according to how sturdy the scion is. Budding is the term applied when a bud with supporting tissue is grafted into a slit or notch cut into the stem of the stock.
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The process of wound healing is absolutely necessary for successful grafting. Healing involves the cooperative production of new cells, some of which form cambium. From the cambium, new vascular (transport) tissues develop, permitting the transfer of water, nutrients, and hormones (growth regulators) to and from the scion. This interaction at the cellular level requires that the scion not be rejec…
Among cool-temperate ornamental flowering shrubs, the lilac (Syringa vulgaris) is often grafted onto privet (Ligustrum species), another example of rare, cross-generic compatibility. Rhododendrons, many of which have been deliberately bred for variants of flower size and color, are usually grafted onto a rootstock of Rhododendron ponticum. This species has pale purple flowers and is native from Sp…
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