Question

Name and describe the method of artificial vegetative propagation employed by gardeners and farmers for the following
(i) Lemon
(ii) Litchi
(iii) litchi
(iv) China rose.

Answer 1

Hint: Asexual reproduction leads to vegetative propagation of the plant. Fragmentation and regeneration of disease-resistant vegetative parts of the plant lead to the formation of the new plant.

Complete Answer:
Vegetative propagation in lemon takes place by cutting, in which a single node in about one inch gets cut and used for the generation of the new plant. Cutting requires a high moisture condition for plant survival. The young plant usually develops in several weeks.
In litchi vegetative propagation takes place by layering, where the erect disease-resistant stem is used. After stem cutting the outer layer of tissue gets removed and covered by peat moss, peat moss provides moisture to plants and a well nutritive environment leads to the production of new tissue after that stem gets down in the soil and we'll protect the shady area for development of new shoots.
Cutting is the easiest method of vegetative propagation in jasmine. 22-25cm of stem gets cut with 3 to 4 nodes. Cutting takes place generally in June because high rooting takes place in this month. Cutting gets buried in soil 5 cm deep after some days nodes give rise to leaves and branches.
In china rose also cutting method is widely used for vegetative propagation. Vegetative propagation takes place in early summer because very cold and hot weather is unfavorable for growth. This plant stems from 4 to 6cm long. The open cut area gets covered with plant hormone and then buried in the soil in well lighted and moisture condition. After someday new leaves start arising from the nodes.

Note: Nowadays due to the scarcity of seed artificial vegetative methods are generally operated. Scarcity of seeds is caused due to dryness of seed endosperm. The seed requires a well-moisture and cold area for the survival of the seed endosperm.