Merits and demerits of grafting?
Answers
Answer:
Propagation. It is the only method to preserve desirable characteristics of seedless hybrids.
Resistance to pests and soil diseases. It is the most important advantage of the graft, because it gives resistance to bacteria, viruses and soil nematodes, being a clean alternative in the control of diseases such as fungal and bacterial wilt, tobacco mosaic virus, root nodules produced by nematodes , and corked root or red root among others.
Answer:
Explanation:
MERITS
(1) to impart disease resistance or hardiness, contributed by the rootstock; (2) to shorten the time taken to first production of flowers or fruits by the scion, in some cases by many years.
(3) to dwarf the scion, making both its height and shape more convenient for harvesting fruit, as with apples.
(4) to allow scion cultivars to retain their desirable leaf, floral, or fruit characters, without the risk of these being lost through sexual reproduction
(5) to provide the most economic use of scion material, in cases where there is some difficulty with stem cuttings producing roots.
DEMERITS
1. It requires skilled workers then only the grafting become successful.
2. This method also consumes much time and effort.
3. The plants selecting for the grafting must be always close relative even then the success depends.
4. The number of plants that are produced by the grafting process is always limited.