Which method of asexual reproduction is commonly seen in the rose plant
Asexual reproduction occurs via three methods in case of a rose plant. It produces plants that are true to the parents. Cuttings are a common way to produce plants genetically identical to the parent. Best done in summer and early fall, cuttings of young stems that have just flowered are taken and wounded by making a slit near the base. They are then placed in a pot of sand or soil and kept moist until roots establish themselves. Layering is a similar process, whereby gardeners wound a stem, bend it toward the ground and cover it with soil to produce a new plant. Grafting occurs when stems are connected with vigorous rootstocks and allowed to grow together to produce hybrids, usually producing more uniform flowers.
The most commonly used method for roses is grafting. Grafting is a method in which the cut stems of two different plants (one with roots and other without roots) are joined together in such a way that the two stems join and grow as a single plant. This new plant will have the characteristics of both the original plants.
The cut stem of a plant (or tree) having roots (and fixed in soil) is called stock. Stock is the lower part of a plant (or tree) having the roots. - The cut stem of another plant (without roots) is called scion. Scion is the upper part of a plant which may have leaves on it (but no roots).
In carrying out grafting, two plants (or trees) are chosen which are to be used as scion and stock. First, the stem (or branch) is removed from the plant chosen to be made scion (for its desirable characteristics) by making a slanting cut. This gives us the scion with a slanting cut. The stem of second plant (or tree) to be used in grafting is also cut in a slanting way. The lower part of this plant (or tree) is stock. It has also a slanting cut.
The scion is placed over the stock. The cut surfaces of the scion and stock are fitted together and bound tightly with a piece of cloth and covered properly with polythene sheet (so as to prevent harmful infection by bacteria or fungus, and loss of water and plant sap from the cut and joined ends of stock and scion).
While joining the scion to the stock, care should be taken to make sure that the cambium layer of scion is in contact with the cambium layer of stock (because the cambium layer in the stem is responsible for growth).
The cut soon heals and the stock and scion of two plants grow together and become one plant. The scion continues to produce its original leaves, flowers and fruits but it gets water and minerals for making food from the chosen stock. So, the fruits will have the characteristics of both the plants (from which scion and stock have come).
Grafting is used to breed fruit trees and flowering bushes. Apple, peach, apricot and pear trees are often grafted. We will now describe some of the advantages of the grafting method of artificial propagation.
- Grafting enables us to combine the most desirable characteristics of the two plants (scion and stock) in its flowers and fruits.
- By grafting method, a very young scion (shoot part of a plant) .can be made to flower and produce fruits quite fast when it is grafted to the stock (stem having roots) of a mature plant.
- It enables us to obtain flowers and fruits having different desired characteristics by grafting scions from different varieties of plants on the same stock. Many varieties of mango have been produced by grafting method.
The most commonly used method for roses is grafting.
Grafting is a method in which the cut stems of two different plants (one with roots and other without roots) are joined together in such a way that the two stems join and grow as a single plant. This new plant will have the characteristics of both the original plants.
The cut stem of a plant (or tree) having roots (and fixed in soil) is called stock. Stock is the lower part of a plant (or tree) having the roots.- The cut stem of another plant (without roots) is called scion. Scion is the upper part of a plant which may have leaves on it (but no roots).
In carrying out grafting, two plants (or trees) are chosen which are to be used as scion and stock. First, the stem (or branch) is removed from the plant chosen to be made scion (for its desirable characteristics) by making a slanting cut. This gives us the scion with a slanting cut. The stem of second plant (or tree) to be used in grafting is also cut in a slanting way. The lower part of this plant (or tree) is stock. It has also a slanting cut.
The scion is placed over the stock. The cut surfaces of the scion and stock are fitted together and bound tightly with a piece of cloth and covered properly with polythene sheet (so as to prevent harmful infection by bacteria or fungus, and loss of water and plant sap from the cut and joined ends of stock and scion).
While joining the scion to the stock, care should be taken to make sure that the cambium layer of scion is in contact with the cambium layer of stock (because the cambium layer in the stem is responsible for growth).
The cut soon heals and the stock and scion of two plants grow together and become one plant. The scion continues to produce its original leaves, flowers and fruits but it gets water and minerals for making food from the chosen stock. So, the fruits will have the characteristics of both the plants (from which scion and stock have come).
Grafting is used to breed fruit trees and flowering bushes. Apple, peach, apricot and pear trees are often grafted. We will now describe some of the advantages of the grafting method of artificial propagation.
- Grafting enables us to combine the most desirable characteristics of the two plants (scion and stock) in its flowers and fruits.
- By grafting method, a very young scion (shoot part of a plant) .can be made to flower and produce fruits quite fast when it is grafted to the stock (stem having roots) of a mature plant.
- It enables us to obtain flowers and fruits having different desired characteristics by grafting scions from different varieties of plants on the same stock. Many varieties of mango have been produced by grafting method.
