A practice sometimes carried out by gardeners is to graft related potatoes and tomatoes so that both are produced on the same plant, one aboveground and one underground. This takes care of pollen needs at blossom time, yet does not confuse pickers who might otherwise mix varieties while harvesting, as the mature crab apples are so distinct from other apple varieties. For example, in tightly planted or badly planned apple orchards of a single variety, limbs of crab apple may be grafted periodically onto trees down rows, say every fourth tree. This is used to raise 'standard' roses, which are rose bushes on a high stem, and it is also used for some ornamental trees. ![]() In these cases, a grafting is carried out at a desired height on a stock plant with a strong stem. in order to provide a strong tall trunk for certain ornamental shrubs and trees.because the scion has weak roots or the roots of the stock plants have roots tolerant of difficult conditions.In some cases, the scion may be easily propagated, but grafting may still be used because it is commercially the most cost effective way of raising a particular type of plant. In this case, cuttings of an easily rooted plant are used to provide a rootstock. because the scion is difficult to propagate vegetatively by other means, such as by cuttings.They provide more fruit per unit of land, higher quality fruit, and reduce the danger of accidents by harvest crews working on ladders. Most apple trees in modern orchards are grafted dwarf or semi-dwarf trees planted at high density. to induce dwarfing or cold tolerance or other characteristics to the scion. ![]() The other plant is selected for its stems, leaves or flowers, and is called the scion. In most cases, one plant is selected for its roots, and this is called the stock or rootstock. ![]() It is most commonly used for the propagation of trees and shrubs grown commercially. Grafting is a method of plant propagation widely used in horticulture, where the tissues of one plant are encouraged to fuse with those of another.
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