What is the difference between budding and vegetative reproduction




















Example: Each potato tuber has several eyes or buds where each bud can grow into a separate potato plant. Example: Onion bulbs can be broken off and planted. Budding is a type of asexual reproduction in which a new organism is formed from a bud of an existing organism. The new organism remains attached to the parent organism till it gets matured. Organism like hydra, yeast etc reproduce by budding. Vegetative propogation is a form of asexual reproduction where one plant is able to grow into a new plant without seeds of spores.

Methods of vegetative propagation include division, budding, grafting, cutting, vegetative apomixes and tissue culture. All rights reserved. Class » Science. How do Organisms Reproduce. Share with your friends. The bud to be inserted is often just a shield of bark with a bud attached or a very thin layer of wood with both the bark shield and bud attached Figure Various techniques can be used to make these cuts, but the shape of the cut remains the same.

Grasp the petiole from the detached leaf between the thumb and forefinger of the free hand. This cut should be deep enough to remove the bud, its shield of bark, and a thin sliver of wood. A variation often used with dogwood is to slant the first upward cut so that it goes about halfway through the budstick.

Then make the top cut and bend the budstick by applying gentle but constant finger pressure behind the bud. The bark should lift and peel off to the side, yielding bark and bud but no wood. Caution: Straight lifting rather than the sideward motion will separate the bud from the bark rather than keeping it intact. Shields removed this way are useless! The cut surface of the rootstock and bud must stay clean.

Do not touch these parts with your fingers. Also, do not set buds down or put them in your mouth. Inserting the Bud.

Insert the bud shield into the T flaps of the stock and slide it down to ensure that it makes intimate contact with the rootstock Figure Securing the Bud. Pull the cut together by winding a 4- or 5-inch long budding rubber around the stem to hold the flaps tightly over the bud shield and prevent drying Figure Secure the budding rubber by overlapping all windings and tucking the end under the last turn.

Do not cover the bud. Chip Budding Chip budding is a technique that may be used whenever mature buds are available. Because the bark does not have to "slip," the chip-budding season is longer than the T-budding season. Species whose bark does not slip easily without tearing - such as some maples - may be propagated more successfully by chip budding than by T-budding.

Preparing the Stock and the Scion Bud. Although all the basics in handling budwood and stock are the same for chip budding and Tbudding, the cuts made in chip budding differ radically. The exact spacing between the cuts varies with species and the size of the buds.

Then remove the chip. Cuts on both the scion to remove the bud and the rootstock to insert the bud should be exactly the same Figure Although the exact location is not essential, the bud is usually positioned one-third of the way down from the beginning of the cut. If the bud shield is significantly narrower than the rootstock cut, line up one side exactly.

Wrapping is extremely important in chip budding. If all exposed edges of the cut are not covered, the bud will dry out before it can take. Chip budding has become more popular over the past 5 years because of the availability of thin 2-mil polyethylene tape as a wrapping material.

This tape is wrapped to overlap all of the injury, including the bud Figure 17 , and forms a miniature plastic greenhouse over the healing graft.

When irrigation is available, apply water at normal rates for plants that bud before August 1. Ornamental peaches and pears often will break bud and grow the same year they are budded. Dogwoods and most other species budded after August 1 should be irrigated at a normal rate for only two to three weeks after budding except during extreme drought. Following these irrigation practices will enable buds to heal completely with no bud break before frost.

Although budding rubbers and polyethylene tape reportedly decompose and need not be removed, studies show that unless they are taken off, binding or girdling of fast-growing plants like Bradford pear may occur within a month. Summer buds should take in two to three weeks.

On species budded in early summer, it may be desirable for the buds to break and grow during the same season. In this case, either remove the stock tops entirely or break them over within a few weeks of budding to encourage the scion buds to break. Once the buds have broken, completely remove the stock above the bud or keep a few leaves intact but remove the terminals, depending upon the species. For dogwoods and other plants budded in late summer, remove the tops just before growth starts the following spring.

A slanting cut away from the bud is preferred Figure If possible, set up stakes or other devices to insure that straight growth will occur before the buds break.

Straight shoots, however, are so essential to the growth of high-quality grafted and budded stock that stakes should be set as they are needed. To insure a top-quality plant, it is essential to remove unwanted sprouts. These sprouts should be "rubbed" off as soon as they are visible so that they do not reduce the growth and quality of the budded stock. If they are removed regularly and early, large scars or "doglegs" can be avoided.

Grafting and budding techniques combine the science and the art of horticulture. The scientific aspects include comparability, timing, disease and insect resistance, drought, tolerance, and hardiness. Information on these topics may be found in have a broad working knowledge of a variety of texts and pamphlets. Acquiring practical skills in the art of grafting and budding, on the other hand, requires hours and even years of practice to perfect. Usually the careful supervision of a trained propagator is required for the serious student of budding and grafting to learn this art.

From this publication it should be clear that many types of budding and grafting techniques are available. Individual propagators usually have a broad working knowledge of all of these techniques but a high degree of skill in only two or three.

These budding and grafting techniques can be used successfully, especially on a commercial basis, to propagate clonal plant materials. In fact, perpetuating many of our horticultural clones depends on the successful application of these techniques. Knives Grafting and budding knives are designed specifically for these purposes and should not be used for carving and whittling wood.

They are available in either left- or right-handed models. The blade is beveled on only one side, unlike conventional knives, which have blades that bevel on both sides down to the cutting edge. Grafting and budding knives must be kept razor sharp so they will cut smoothly. Pruning and Lopping Shears Pruning and lopping shears should be the scissors or sliding blade type rather than the blade and anvil type.

If used to harvest scion wood or budsticks, blade and anvil pruner will crush plant tissue. As with knives, pruning and lopping shears should be kept razor sharp to give clean, close cuts. Grafting Tools A special device known as a grafting tool has been designed for making the cleft graft. It is used when the rootstock's diameter is greater than 1 inch.

The wedge-shaped blade is used to split the stock, and the flat pick opens the cleft so that the scions can be inserted. Once in place, the flat pick is removed and the cleft comes together to hold the scions in position. Wax Melter Wax melters are used to heat the wax for sealing graft and bud junctions. They are usually made by modifying kerosene lanterns.

The chimney is replaced by a small tin pot that serves as a receptacle for the wax. When the flame is kept low, the wax is melted without burning and can be kept at a suitable temperature. The specialized terms listed here are often used in discussing grafting and budding. The drawings in Figure 19 , Figure 20 , Figure 21 and Figure 22 will help in understanding these terms.

Adventitious buds - buds that can produce roots or shoots at an unusual location on the plant if environmental conditions are favorable.

Bark - all tissues lying outward from the vascular cambium. Bud - an immature or embryonic shoot, flower, or inflorescence. Callus - undifferentiated parenchyma tissue formed at a wounded surface.

Cambium - a thin layer of living cells between the xylem outer sapwood and phloem inner bark that is responsible for secondary growth. Because cambium cells divide and make new cells, the cambia of two different but related plant will grow together if they are fixed and held firmly in contact.

Compatible - plant parts scion and rootstock that are capable of forming a permanent union when grafted together. Double-worked plant - a plant that has been grafted twice, usually to overcome incompatibility between scion and rootstock; it consists of a rootstock, interstock, and scion. Graft - a finished plant that comes from joining a scion and a rootstock. Graft or bud union - the junction between a scion or bud and its supporting rootstock.

Grafting paint - A mixture used like warm grafting wax to cover wounds and prevent drying. It requires no heating before use and dries to a moisture-proof seal when exposed to air. Unlike conventional paints, it does not damage plant tissue.

Grafting strip - a rubber strip used to hold scions in place until knitting has occurred. Grafting strips are thicker and less pliable than budding rubber. Grafting twine - treated jute or raffia used to wrap graft junctions to keep scions in place and cambia properly aligned.

Incompatible - plants whose parts will not form a permanent union when grafted together. Used in cases where the scion and rootstock are not directly compatible with each other or where additional dwarfing and cold or disease resistance is desired.

Parafilm - registered tradename for a nonsticky, self-adhering parafin film. Can be stretched over a bud or graft to hold the bud or scion in position as well as to seal the junction. Used in place of a rubber strip or twine.

Polarity - a condition where stems grow shoots at the apical or terminal end and roots at the basal end. Raffia - One of several materials available for securing scions or buds to the rootstock, A natural fiber from the fronds of the raphia plam, raffia is one of the oldest materials in use.

It should be graded for uniform size and length and moistened just before use to make it pliable. Rootstock - the portion of a grafted plant that has or will develop the root system onto which the scion is grafted. Scion - a plant part that is grafted onto the interstock or the rootstock.

The scion usually has two or more buds. Single-worked plant - a plant that has been grafted once; it consists of a rootstock and a scion.

Standard - a single-stemmed understock used for the production of weeping forms of woody plants. One or more scions are usually grafted relatively high on the understock 2 to 6 feet. Top-worked plant - an established tree or mature plant whose upper portion has been removed back to the main limbs or trunk and then grafted with new scions.

Understock - same as rootstock. Union - the point where the scion and rootstock are joined. Warm grafting wax - a mixture, usually consisting or beeswax, resin, and tallow plus a fungicide, that is applied warm over a bud or graft junction to prevent drying and to serve as a topical dressing.

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Introduction Skip to Introduction. Grafting Skip to Grafting. Figure 1. Cross section of a woody plant stem. Print Image. Figure 2. Cleft graft. Figure 3. Bark graft. Figure 4. Side veneer graft. Figure 5. Splice graft. Figure 6. Whip and tongue graft. Figure 7. Saddle graft. Figure 8. Bridge graft. Figure 9. Inarch graft. Budding Skip to Budding. Figure Budding knives. T-shaped cut on rootstock. Removing the bark shield with the bud attached.



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