In Science, What Is Budding?
Budding is a horticultural practice that involves the insertion of a scion onto the stock. A "scion" is a detached bud of a plant, while a "stock" is the stem of the parent plant. Budding is also one of the methods of artificial vegetative propagation that is done to grow new plants by asexual means. It is comparable to another method of vegetative reproduction called grafting, although grafting involves the insertion of branches instead of buds. Plant budding, as well as grafting, is used to produce a new plant that has the most desirable characteristics of the two parent plants.
In plant propagation, the reproduction of plants is controlled to increase their numbers or to combine their most desirable characteristics. It is generally divided into seed propagation and vegetative propagation. Seed propagation is considered the most widely used method, as planting seeds is an easy way of increasing the numbers of plants. Growing trees from seeds, however, would take several months or years, without the assurance that the trees will manifest all of the desired characteristics; for trees, therefore, vegetative propagation is the more appropriate method.
Vegetative propagation is the reproduction of new plants using a non-reproductive part of the parent plant, such as a stem or bud. It is divided into natural and artificial vegetative propagation. Natural vegetative propagation, such as through the growth of rhizomes, involves the asexual reproduction that naturally occurs in plants. Artificial vegetative propagation, such as budding and grafting, involves the methods that people use on plants in order to induce asexual reproduction. The basis of these methods is the ability of plants to reproduce by nonsexual means.
Budding is done by first selecting and detaching a healthy bud, with the active vascular cambium surrounding it, from a plant. Vascular cambium is a layer of plant tissue that is made up of actively dividing cells. The bark of the stock is then opened with a T-shaped cut. Into this opening, the bud is inserted, uniting the vascular cambia of the scion and the stock. To secure the bud and protect it against drying out, the stock is covered with elastic tape.
The main purpose of budding is the production and cloning of the best varieties of plants, especially fruit-bearing trees. It is also used to produce new plants with improved appearance such as having flowers with unique colors. Plant budding is even used to fix plant imperfections. Budding reproduction, however, can only become successful if the parent plants are of the same kind or of closely related kinds.
@pastanaga - The thing I like most about those kinds of trees is that they have a slightly different colored flower for every type of fruit. So they look like a beautiful patchwork of pinks and whites when they are in bloom.
@Iluviaporos - Actually, most fruit trees these days are already grafted, with one variety placed on a different kind of root stock. Growing from seed is just too unpredictable, when people want particular kinds of apples or pears and budding means that sellers can guarantee what the fruit will look like and to what size the tree will eventually grow.
I think there are companies that sell trees that have been designed to carry several different kinds of fruit, which is ideal for a smaller backyard. I imagine it's more difficult to get the conditions for the tree right though, so make sure you'll be able to provide it with the environment that will make it happy.
You can do this at home without needing a laboratory or anything. I've heard of people who have managed to graft more than ten different varieties of fruit trees onto one main trunk, which is quite exciting. You can only put the same kinds together, like citrus with citrus and stone fruit with stone fruit, but other than that you're not really limited.
Just have a look online for some instructions and be patient about it. It will take a few years before you can really enjoy the fruits of your labors.
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